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  <title>Inês e Joana</title>
  <link>http://ichnofossils.blogs.sapo.pt/</link>
  <description>Inês e Joana - SAPO Blogs</description>
  <lastBuildDate>Wed, 03 Jun 2009 14:01:55 GMT</lastBuildDate>
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  <guid isPermaLink='true'>http://ichnofossils.blogs.sapo.pt/5504.html</guid>
  <pubDate>Wed, 03 Jun 2009 14:00:44 GMT</pubDate>
  <title>Pseudoicnofósseis</title>
  <author>Inês e Joana</author>
  <link>http://ichnofossils.blogs.sapo.pt/5504.html</link>
  <description>&lt;p&gt; &lt;/p&gt;
&lt;div style=&quot;text-justify: inter-ideograph; text-indent: 35.4pt; line-height: 150%; text-align: justify&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;line-height: 150%&quot;&gt;Os pseudoicnofósseis não são mais do que estruturas originadas por processos físicos e químicos durante e após a sedimentação das rochas, como é o caso das marcas de ondulação marítima, moldes de sais minerais ou a saída de gases do interior da Terra. Por serem tão semelhantes às pistas, escavações e perfurações de origem animal, podem ser facilmente confundidas com icnofósseis&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-size: 12pt; line-height: 150%&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn1&quot; name=&quot;_ftnref1&quot;&gt;&lt;/a&gt;&lt;/span&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;line-height: 150%&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn1&quot; name=&quot;_ftnref1&quot;&gt;&lt;/a&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;line-height: 150%&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn1&quot; name=&quot;_ftnref1&quot;&gt;&lt;span&gt;&lt;span&gt;&lt;span style=&quot;line-height: 115%&quot;&gt;[1]&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/a&gt;.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; text-indent: 35.4pt; line-height: 150%; text-align: justify&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;line-height: 150%&quot;&gt;A classificação destas estruturas tem gerado grandes discussões entre diversos autores. No entanto alguns deles já demonstraram experimentalmente que estas estruturas sedimentares são de origem inorgânica. Karcz &lt;i&gt;et al&lt;/i&gt;(1974) provaram que a acção dos fluidos sobre argilas, logo após a sua deposição, pode resultar em construções morfologicamente semelhantes a vários tipos de icnofósseis, principalmente aqueles originados em zonas marinhas de baixa altitude&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-size: 12pt; line-height: 150%&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn2&quot; name=&quot;_ftnref2&quot;&gt;&lt;/a&gt;&lt;/span&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;line-height: 150%&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn2&quot; name=&quot;_ftnref2&quot;&gt;&lt;/a&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;line-height: 150%&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn2&quot; name=&quot;_ftnref2&quot;&gt;&lt;span&gt;&lt;span&gt;&lt;span style=&quot;line-height: 115%&quot;&gt;[2]&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/a&gt;.    &lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; text-indent: 35.4pt; line-height: 150%; text-align: justify&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;line-height: 150%&quot;&gt;O parque icnológico de Penha Garcia, para além de rico em icnofósseis, tem também alguns registos de pseudoicnofósseis (estruturas sedimentares de origem não biogénicas), como é o caso das marcas de ondulação que resultam do movimento das areias pela acção de corrente marítima em zonas de pouca profundidade, fendas de sinerése, formações estas devidas à saída de água salgada contida nos interstícios dos sedimentos e tempestitos, que representam a acção de fluxos turbulentos, bastante frequentes em tempestades que remexiam os sedimentos do fundo marinho, dispondo-os de forma diferente à inicial &lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-size: 12pt; line-height: 150%&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn3&quot; name=&quot;_ftnref3&quot;&gt;&lt;/a&gt;&lt;/span&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;line-height: 150%&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn3&quot; name=&quot;_ftnref3&quot;&gt;&lt;/a&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;line-height: 150%&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn3&quot; name=&quot;_ftnref3&quot;&gt;&lt;span&gt;&lt;span&gt;&lt;span style=&quot;line-height: 115%&quot;&gt;[3]&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/a&gt;. &lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;p style=&quot;text-align: justify&quot;&gt; &lt;/p&gt;
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&lt;div style=&quot;text-align: justify&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftnref1&quot; name=&quot;_ftn1&quot;&gt;&lt;span&gt;&lt;span&gt;&lt;span style=&quot;font-size: 10pt; line-height: 115%&quot;&gt;[1]&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/a&gt;&lt;font size=&quot;2&quot;&gt; CARVALHO, Ismar de Souza &amp;ndash; &amp;ldquo;Paleontologia&amp;rdquo;. Rio de Janeiro: Editora interciência, 2000. ISBN: 85-7193-041-4. P. 97&lt;/font&gt;&lt;/div&gt;
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&lt;div style=&quot;line-height: normal; text-align: justify&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftnref2&quot; name=&quot;_ftn2&quot;&gt;&lt;span style=&quot;font-size: 10pt&quot;&gt;&lt;span&gt;&lt;span&gt;&lt;span style=&quot;font-size: 10pt; line-height: 115%&quot;&gt;[2]&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/a&gt;&lt;span style=&quot;font-size: 10pt&quot;&gt; CARVALHO, Izmar de Souza, &lt;i&gt;et al&lt;/i&gt; &amp;ndash; &lt;i&gt;Pseudoicnofósseis em rochas da Baía Pré-Cambrica de São João del Rei (Minas Gerais&lt;/i&gt;). Anais da Academia Brasileira de Ciências. Vol. 67, nº3, 1995 (p.301). &lt;/span&gt;&lt;/div&gt;
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&lt;div style=&quot;text-align: justify&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftnref3&quot; name=&quot;_ftn3&quot;&gt;&lt;span&gt;&lt;span&gt;&lt;span style=&quot;font-size: 10pt; line-height: 115%&quot;&gt;[3]&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/a&gt;&lt;font size=&quot;2&quot;&gt; In: &amp;ldquo;http://www.naturtejo.com/ficheiros/cont&lt;wbr /&gt;eudos/1224855037Folheto_final.pdf&amp;rdquo;, consultado a 13 de Abril de 2009&lt;/font&gt;&lt;/div&gt;
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  <pubDate>Wed, 03 Jun 2009 13:55:04 GMT</pubDate>
  <title>Os Olhos das Trilobites</title>
  <author>Inês e Joana</author>
  <link>http://ichnofossils.blogs.sapo.pt/5237.html</link>
  <description>&lt;p&gt; &lt;/p&gt;
&lt;div style=&quot;text-justify: inter-ideograph; text-indent: 35.4pt; line-height: 150%; text-align: justify&quot;&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;line-height: 150%&quot;&gt;As trilobites foram dos primeiros seres a desenvolver vários apêndices locomotores e olhos complexos.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-size: 12pt; line-height: 150%&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn1&quot; name=&quot;_ftnref1&quot;&gt;&lt;/a&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn1&quot; name=&quot;_ftnref1&quot;&gt;&lt;span&gt;&lt;span&gt;&lt;span style=&quot;line-height: 115%&quot;&gt;[1]&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/a&gt; A maioria das Trilobites era dotada de um par de olhos complexos, bastante eficientes que lhes permitia uma visão excepcional tendo em conta os outros seres vivos existentes na altura.&lt;/span&gt;&lt;/span&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn2&quot; name=&quot;_ftnref2&quot;&gt;&lt;/a&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn2&quot; name=&quot;_ftnref2&quot;&gt;&lt;span&gt;&lt;span&gt;&lt;span style=&quot;line-height: 115%&quot;&gt;[2]&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/a&gt; O privilégio de terem uma visão mais apurada, fazia com que avistassem possíveis predadores e mais rapidamente se protegessem de eventuais ataques&lt;/span&gt;&lt;/span&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn3&quot; name=&quot;_ftnref3&quot;&gt;&lt;/a&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;font-size: 12pt; line-height: 150%&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn3&quot; name=&quot;_ftnref3&quot;&gt;&lt;/a&gt;&lt;/span&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;line-height: 150%&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn3&quot; name=&quot;_ftnref3&quot;&gt;&lt;span&gt;&lt;span&gt;&lt;span style=&quot;line-height: 115%&quot;&gt;[3]&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/a&gt;.  &lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; line-height: 150%; text-align: justify&quot;&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;line-height: 150%&quot;&gt;            De acordo com a espécie a que pertenciam, as trilobites tinham diversos tipos de olhos, existiam inclusive espécies, que por viverem nos fundos oceânicos onde não existia luminosidade, não tinham olhos. &lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; line-height: 150%; text-align: justify&quot;&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;line-height: 150%&quot;&gt;            Embora as diferentes trilobites tivessem diversos tipos de olhos, estes eram constituídos pelos mesmos componentes, apenas estavam dispostos em posições diferentes e existiam em diferentes quantidades. Outro dado interessante, é que são esses mesmos tecidos que constituem os olhos dos mamíferos actuais, nos quais, se inserem os seres humanos&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-size: 12pt; line-height: 150%&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn4&quot; name=&quot;_ftnref4&quot;&gt;&lt;/a&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn4&quot; name=&quot;_ftnref4&quot;&gt;&lt;span&gt;&lt;span&gt;&lt;span style=&quot;line-height: 115%&quot;&gt;[4]&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/a&gt;. Dito isto podemos enumerar alguns desses constituintes comuns tais como a esclera, a córnea, e as lentes focais&lt;/span&gt;&lt;/span&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn5&quot; name=&quot;_ftnref5&quot;&gt;&lt;/a&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;font-size: 12pt; line-height: 150%&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn5&quot; name=&quot;_ftnref5&quot;&gt;&lt;/a&gt;&lt;/span&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;line-height: 150%&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftn5&quot; name=&quot;_ftnref5&quot;&gt;&lt;span&gt;&lt;span&gt;&lt;span style=&quot;line-height: 115%&quot;&gt;[5]&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/a&gt;.    &lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;p style=&quot;text-align: justify&quot;&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;br clear=&quot;all&quot; /&gt;
&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
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&lt;div style=&quot;text-align: justify&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftnref1&quot; name=&quot;_ftn1&quot;&gt;&lt;/a&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftnref1&quot; name=&quot;_ftn1&quot;&gt;&lt;span&gt;&lt;span&gt;&lt;span style=&quot;line-height: 115%&quot;&gt;[1]&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/a&gt; In: &amp;ldquo;http://www.trilobites.info/eyes.ht&lt;wbr /&gt;m&amp;rdquo;, consultado a 12 de Maio de 2009&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;div style=&quot;text-align: justify&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftnref2&quot; name=&quot;_ftn2&quot;&gt;&lt;/a&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftnref2&quot; name=&quot;_ftn2&quot;&gt;&lt;span&gt;&lt;span&gt;&lt;span style=&quot;line-height: 115%&quot;&gt;[2]&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/a&gt; &lt;i&gt;Idem&lt;/i&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;div id=&quot;ftn3&quot;&gt;
&lt;div style=&quot;text-align: justify&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftnref3&quot; name=&quot;_ftn3&quot;&gt;&lt;/a&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftnref3&quot; name=&quot;_ftn3&quot;&gt;&lt;span&gt;&lt;span&gt;&lt;span style=&quot;line-height: 115%&quot;&gt;[3]&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/a&gt; &lt;i&gt;Ibidem&lt;/i&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;div id=&quot;ftn4&quot;&gt;
&lt;div style=&quot;text-align: justify&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftnref4&quot; name=&quot;_ftn4&quot;&gt;&lt;/a&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftnref4&quot; name=&quot;_ftn4&quot;&gt;&lt;span&gt;&lt;span&gt;&lt;span style=&quot;line-height: 115%&quot;&gt;[4]&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/a&gt; In: &amp;ldquo;http://www.webartigos.com/articles/9&lt;wbr /&gt;314/1/a-morfologia-dos-trilobitas-e-suas-c&lt;wbr /&gt;orrelacoes-paleoecologicas/pagina1.html&amp;rdquo;&lt;wbr /&gt;, consultado a 16 de Maio de 2009&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;div id=&quot;ftn5&quot;&gt;
&lt;div style=&quot;text-align: justify&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftnref5&quot; name=&quot;_ftn5&quot;&gt;&lt;/a&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;a title=&quot;&quot; href=&quot;#_ftnref5&quot; name=&quot;_ftn5&quot;&gt;&lt;span&gt;&lt;span&gt;&lt;span style=&quot;line-height: 115%&quot;&gt;[5]&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/a&gt; In: &amp;ldquo;http://www.trilobites.info/eyes.ht&lt;wbr /&gt;m&amp;rdquo;, consultado a 12 de Maio de 2009&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
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  <pubDate>Tue, 12 May 2009 14:07:24 GMT</pubDate>
  <title>Vantagens dos Icnofósseis sobre os fósseis em geral:</title>
  <author>Inês e Joana</author>
  <link>http://ichnofossils.blogs.sapo.pt/4917.html</link>
  <description>&lt;p style=&quot;text-align: justify&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span&gt;·&lt;span style=&quot;font: 7pt &amp;#39;Times New Roman&amp;#39;&quot;&gt;     &lt;/span&gt;&lt;/span&gt;Os primeiros ocorrem sempre &lt;i&gt;in situ&lt;/i&gt;, isto é, ocorrem enquanto os organismos estão vivos e interagem com o meio ambiente no próprio local, ao contrário dos fósseis corporais que podem ocorrer em locais diferentes daqueles onde o ser vivia;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span&gt;·&lt;span style=&quot;font: 7pt &amp;#39;Times New Roman&amp;#39;&quot;&gt;      &lt;/span&gt;&lt;/span&gt;Aparecem com mais frequência em rochas nas quais os fósseis corporais são menos comuns (arenitos e siltitos);&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span&gt;·&lt;span style=&quot;font: 7pt &amp;#39;Times New Roman&amp;#39;&quot;&gt;       &lt;/span&gt;&lt;/span&gt;Sofrem um aumento da visibilidade aquando da diagenese, enquanto que os restantes fósseis sofrem destruição de alguns dos seus detalhes. &lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;div style=&quot;line-height: 150%; text-align: justify&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt; &lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;line-height: 150%; text-align: justify&quot;&gt;&lt;span style=&quot;font-size: smaller&quot;&gt;&lt;span style=&quot;font-family: Arial&quot;&gt;&lt;span&gt;&lt;span style=&quot;line-height: 150%&quot;&gt;DENTZIEN-DIAS, Paula C.; SCHULTZ, Cezar Leandro &amp;mdash; &lt;i&gt;Icnofósseis de vertebrados: Importância e Aplicações&lt;/i&gt;. In Semana Académica dos Alunos de Pós-Graduação em Geociencias, Porto Alegre. 2006. (39p) &lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;</description>
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  <pubDate>Thu, 26 Mar 2009 19:18:31 GMT</pubDate>
  <title>IV Congresso de GeoCientistas... Tambèm na Reconquista</title>
  <author>Inês e Joana</author>
  <link>http://ichnofossils.blogs.sapo.pt/4693.html</link>
  <description>&lt;p&gt;&lt;a href=&quot;http://almofadinhas.com.sapo.pt/Reconqista%20001.jpg&quot;&gt;&lt;img style=&quot;border-left-color: black; border-bottom-color: black; width: 519px; border-top-color: black; height: 730px; border-right-color: black&quot; height=&quot;730&quot; width=&quot;550&quot; border=&quot;0&quot; alt=&quot;&quot; src=&quot;http://almofadinhas.com.sapo.pt/Reconqista%20001.jpg&quot; /&gt;&lt;/a&gt;&lt;/p&gt;</description>
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  <pubDate>Thu, 26 Mar 2009 19:08:18 GMT</pubDate>
  <title>Jornal ESALpicos – IV Congresso de Jovens Geocientistas</title>
  <author>Inês e Joana</author>
  <link>http://ichnofossils.blogs.sapo.pt/4428.html</link>
  <description>&lt;p&gt;&lt;a href=&quot;http://almofadinhas.com.sapo.pt/esalpicos.jpg&quot;&gt;&lt;img style=&quot;border-left-color: black; border-bottom-color: black; width: 520px; border-top-color: black; height: 473px; border-right-color: black&quot; height=&quot;473&quot; alt=&quot;&quot; width=&quot;600&quot; border=&quot;0&quot; src=&quot;http://almofadinhas.com.sapo.pt/esalpicos.jpg&quot; /&gt;&lt;/a&gt;&lt;/p&gt;</description>
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  <guid isPermaLink='true'>http://ichnofossils.blogs.sapo.pt/4078.html</guid>
  <pubDate>Thu, 26 Mar 2009 18:12:26 GMT</pubDate>
  <title>Alimentação das Trilobites</title>
  <author>Inês e Joana</author>
  <link>http://ichnofossils.blogs.sapo.pt/4078.html</link>
  <description>&lt;p&gt; &lt;/p&gt;
&lt;p style=&quot;text-align: justify&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;b&gt;&lt;span style=&quot;color: #808080&quot;&gt;Sabendo que as Cruziana são um tipo específico de icnófosseis, e que correspondem às impressões dos apêndices locomotores deixadas no acto de obtenção de alimento, resta-nos saber como realmente se alimentavam as trilobites.&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: center&quot;&gt; &lt;/p&gt;
&lt;p style=&quot;text-align: center&quot;&gt; &lt;/p&gt;
&lt;p style=&quot;text-align: justify&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;b&gt;&lt;span style=&quot;color: #808080&quot;&gt;&lt;span&gt;&lt;i&gt;&amp;ldquo;&lt;/i&gt;&lt;/span&gt;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;b&gt;&lt;span style=&quot;color: #808080&quot;&gt;&lt;i&gt;Regressemos ao passado e imaginemos uma trilobite a alimentar-se de matéria orgânica contida nos sedimentos, escavando e revolvendo, &amp;ldquo;lavrando&amp;rdquo; o substrato arenoso até atingir a interface deste com um nível argiloso de elevada plasticidade. A depressão gerada no nível argiloso por acção dos apêndices locomotores, à medida que o animal avança processando ao alimento, pôde ser preservada e realçada através de certos mecanismos de fossilização, dando origem às inúmeras marcas serpentiformes que hoje podemos contemplar nas imediações de Penha Garcia&amp;rdquo; (C. Neto de Carvalho, 2004)&lt;/i&gt;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: center&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt; &lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: center&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;img style=&quot;border-left-color: black; border-bottom-color: black; border-top-color: black; border-right-color: black&quot; height=&quot;300&quot; alt=&quot;&quot; width=&quot;399&quot; align=&quot;bottom&quot; border=&quot;0&quot; src=&quot;http://almofadinhas.com.sapo.pt/Imagem1.jpg&quot; /&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: center&quot;&gt; &lt;/p&gt;</description>
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  <guid isPermaLink='true'>http://ichnofossils.blogs.sapo.pt/3691.html</guid>
  <pubDate>Wed, 25 Mar 2009 14:18:49 GMT</pubDate>
  <title>Enquadramento Geológico de Penha Garcia</title>
  <author>Inês e Joana</author>
  <link>http://ichnofossils.blogs.sapo.pt/3691.html</link>
  <description>&lt;p&gt; &lt;/p&gt;
&lt;div style=&quot;margin: 0cm 0cm 10pt; text-align: justify&quot;&gt;           &lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt; Idanha-a-Nova é um dos concelhos do distrito de Castelo Branco. Situa-se no interior de Portugal, integrando a unidade geológica identificada como Maciço Hespérico. O concelho de Idanha-a-Nova é delimitado a sul pelo rio Tejo a Este pelo rio Erges. A Norte e a este encontram-se os concelhos de Penamacor, Fundão e Castelo Branco. &lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;margin: 0cm 0cm 10pt; text-indent: 35.4pt; text-align: justify&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;A metade sul do distrito de Castelo Branco integra-se numa superfície aplanada, desnivelada em dois compartimentos através da grande escarpa de falha do Ponsul, a qual põe em contacto o xisto e o granito no degrau superior e as arcoses presentes no degrau inferior. Tendo uma direcção aproximada de NE &amp;ndash; SO, é possível considerar que terá resultado da orogenia alpina. Com uma rejeição média que varia entre os 100 e os 200 m ela é claramente visível em Idanha-a-Nova e apresenta-se enquadrada por duas cristas quartzíticas, a de Perdigão e a de Penha Garcia&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;margin: 0cm 0cm 10pt; text-indent: 35.4pt; text-align: justify&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;Os quartzitos, que formam cristas com dois a três quilómetros de largura e com um diferencial de 100 a 400 m, em relação à plataforma de xistos, prolongam-se, por vezes, durante dezenas de quilómetros. A sua formação decorreu desde acerca de 600-650 Milhões de anos.&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;</description>
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  <guid isPermaLink='true'>http://ichnofossils.blogs.sapo.pt/3577.html</guid>
  <pubDate>Thu, 19 Mar 2009 21:19:45 GMT</pubDate>
  <title>IV Congresso de Jovens GeoCientistas </title>
  <author>Inês e Joana</author>
  <link>http://ichnofossils.blogs.sapo.pt/3577.html</link>
  <description>&lt;p style=&quot;text-align: justify&quot;&gt;       &lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;No passado dia 12 tivemos o prazer de participar no IV Congresso de Jovens GeoCientistas na Universidade de Coimbra, organizado pelo &amp;quot;Departamento de Ciências da Terra&amp;quot; desta mesma Universidade.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;        Ao longo de todo o dia, vários grupos do 2º , 3º ciclo e Secundário, apresentaram os seus projectos que haviam sido desenvolvidos ao logo dos últimos meses. Para além das apresentações tivemos oportunidade de apreciar os vários Posters que cada grupo fez alusivo aos respectivos trabalhos.&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;        Foi uma experiência bastante enriquecedora não só pelas diversas apresentações dos mais variados temas, mas também pela experiência e oportunidade de estarmos perante uma plateia imensa. &lt;/span&gt;&lt;/span&gt;&lt;/p&gt;</description>
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  <guid isPermaLink='true'>http://ichnofossils.blogs.sapo.pt/3235.html</guid>
  <pubDate>Thu, 19 Mar 2009 21:08:03 GMT</pubDate>
  <title>Rusophycus</title>
  <author>Inês e Joana</author>
  <link>http://ichnofossils.blogs.sapo.pt/3235.html</link>
  <description>&lt;p&gt; &lt;/p&gt;
&lt;div style=&quot;text-align: justify&quot;&gt;               &lt;span style=&quot;font-size: medium&quot;&gt; &lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;Quando descemos do castelo de Penha Garcia pelo trilho que nos leva até ao leito do rio Ponsul, podemos observar de perto o grande número de icnofósseis presentes no parque Icnológico.&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;text-align: justify&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;                Nas cristas quartzíticas de Penha Garcia, para além das Cruziana, marcas que registam a alimentação das trilobites, podem também ser avistados indícios do repouso destes seres: &lt;b&gt;&lt;i&gt;Rusophycus.&lt;/i&gt;&lt;/b&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;text-align: justify&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;b&gt;&lt;i&gt;                &lt;/i&gt;&lt;/b&gt;Rusophycus tem a forma de um grão de café e com lobos geralmente cobertos de estrias, provocados pelos cerca de treze pares de patas.&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div&gt;&lt;span style=&quot;font-size: medium&quot;&gt; &lt;/span&gt;&lt;/div&gt;
&lt;p&gt; &lt;/p&gt;
&lt;p style=&quot;text-align: center&quot;&gt;&lt;img style=&quot;border-left-color: black; border-bottom-color: black; border-top-color: black; border-right-color: black&quot; height=&quot;206&quot; alt=&quot;&quot; width=&quot;300&quot; align=&quot;bottom&quot; border=&quot;2&quot; src=&quot;http://museum.gov.ns.ca/mnh/nature/tracefossils/images/tracemakers/rusophycus-4.gif&quot; /&gt;&lt;/p&gt;</description>
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  <guid isPermaLink='true'>http://ichnofossils.blogs.sapo.pt/3020.html</guid>
  <pubDate>Wed, 04 Feb 2009 11:10:14 GMT</pubDate>
  <title>Algumas Fotografias...</title>
  <author>Inês e Joana</author>
  <link>http://ichnofossils.blogs.sapo.pt/3020.html</link>
  <description>&lt;p&gt;&lt;img style=&quot;border-left-color: black; border-bottom-color: black; border-top-color: black; border-right-color: black&quot; height=&quot;395&quot; width=&quot;527&quot; border=&quot;0&quot; alt=&quot;&quot; src=&quot;http://almofadinhas.com.sapo.pt/fotos.jpg&quot; /&gt;&lt;/p&gt;</description>
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  <guid isPermaLink='true'>http://ichnofossils.blogs.sapo.pt/2578.html</guid>
  <pubDate>Thu, 29 Jan 2009 21:34:46 GMT</pubDate>
  <title>Ida a Coimbra </title>
  <author>Inês e Joana</author>
  <link>http://ichnofossils.blogs.sapo.pt/2578.html</link>
  <description>&lt;p style=&quot;text-align: justify&quot;&gt;     &lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt; No passado dia 21 de Janeiro, tivemos o privilégio de ir a universidade de Coimbra, mais propriamente ao Departamento de Ciências de Terra.&lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;img style=&quot;border-left-color: black; border-bottom-color: black; border-top-color: black; border-right-color: black&quot; height=&quot;132&quot; alt=&quot;&quot; width=&quot;200&quot; align=&quot;right&quot; border=&quot;1&quot; src=&quot;http://fotos.sapo.pt/topazio1950/pic/000cgpk5&quot; /&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;      O objectivo desta visita, foi compreendermos melhor a geografia da região de Penha Garcia, principalmente o que se referia à formação do sinclinal existente na zona. Tivemos então o prazer de falar com a Prof. Doutora Celeste Gomes e com o Prof. Doutor António Sequeira que nos ajudaram muito e foram muito prestáveis em terem nos ajudado e rebebido com imensa simpatia, desde já o nosso agradecimento. &lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;      Sendo assim, esta viagem mostrou-se bastante produtiva e proveitosa para o desenvolvimento do nosso trabalho. &lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;      Esperemos que corra tudo pelo melhor... Brevemente serão colocados novos post&apos;s sempre sombre a mesma temática que tem vindo a preencher os nossos dias !   &lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt; &lt;/span&gt;&lt;/span&gt;&lt;/p&gt;</description>
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  <guid isPermaLink='true'>http://ichnofossils.blogs.sapo.pt/2380.html</guid>
  <pubDate>Wed, 28 Jan 2009 11:09:33 GMT</pubDate>
  <title>Processo de Fossilização</title>
  <author>Inês e Joana</author>
  <link>http://ichnofossils.blogs.sapo.pt/2380.html</link>
  <description>&lt;p&gt; &lt;/p&gt;

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&lt;p&gt; &lt;/p&gt;</description>
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  <guid isPermaLink='true'>http://ichnofossils.blogs.sapo.pt/2025.html</guid>
  <pubDate>Thu, 15 Jan 2009 21:22:55 GMT</pubDate>
  <title>GEOPARK - O que é?</title>
  <author>Inês e Joana</author>
  <link>http://ichnofossils.blogs.sapo.pt/2025.html</link>
  <description>&lt;p&gt;&lt;img style=&quot;border-left-color: black; border-bottom-color: black; width: 172px; border-top-color: black; height: 110px; border-right-color: black&quot; height=&quot;90&quot; alt=&quot;&quot; width=&quot;150&quot; align=&quot;left&quot; src=&quot;http://www.casasantacatarina.com/gfx/links/naturtejo.png&quot; /&gt;&lt;/p&gt;
&lt;div style=&quot;text-justify: inter-ideograph; text-indent: 35.45pt; line-height: 150%&quot;&gt; &lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; text-indent: 35.45pt; line-height: 150%&quot;&gt; &lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; text-indent: 35.45pt; line-height: 150%&quot;&gt; &lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; text-indent: 35.45pt; line-height: 150%&quot;&gt; &lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; text-indent: 35.45pt; line-height: 150%; text-align: justify&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;font-size: 10pt; line-height: 150%&quot;&gt;Um Geopark é uma área de limites bem definidos e contém um número significativo de locais de interesse geológico. Nestas terras estão inscritas memórias da história da Terra.&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; text-indent: 35.45pt; line-height: 150%; text-align: justify&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;font-size: 10pt; line-height: 150%&quot;&gt;É em Penha Garcia, graças à presença de marcas fósseis e estruturas geológicas distintas, que e&lt;/span&gt;&lt;span style=&quot;font-size: 10pt; line-height: 150%&quot;&gt;ncontramos o único exemplo português destas áreas protegidas: Geopark NaturTejo.&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; text-indent: 35.45pt; line-height: 150%; text-align: justify&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;font-size: 10pt; line-height: 150%&quot;&gt;São três os principais objectivos destes parques: a &lt;b&gt;conservação&lt;/b&gt; dos locais em questão, organização de actividades &lt;b&gt;educativas&lt;/b&gt; e o incentivo ao &lt;b&gt;turismo&lt;/b&gt; na região.&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; text-indent: 35.45pt; line-height: 150%; text-align: justify&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;font-size: 10pt; line-height: 150%&quot;&gt;Um Geopark procura a preservação dos geossítios de particular importância, explorando e desenvolvendo a sua conservação, colaborando com as universidades, serviços geológicos e outras instituições.&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; text-indent: 35.45pt; line-height: 150%; text-align: justify&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;font-size: 10pt; line-height: 150%&quot;&gt;É também esta entidade que organiza actividades de divulgação de conhecimentos geocientíficos e ambientais para o público. Um Geopark apoia a investigação científica e promove o diálogo entre as Ciências da Terra e as populações.&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; text-indent: 35.45pt; line-height: 150%; text-align: justify&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;font-size: 10pt; line-height: 150%&quot;&gt;Estes parques estimulam a actividade económica e o desenvolvimento sustentável através do Turismo de Natureza. A imagem deste local é promovida graças a um reconhecimento do património natural de interesse internacional, e por isso o número de turistas vindo de todo o mundo é cada vez maior.&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; text-indent: 35.45pt; line-height: 150%; text-align: justify&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;font-size: 10pt; line-height: 150%&quot;&gt;Só é possível levar a cabo estes objectivos identificando os geossítios e desenvolvendo museus, visitas guiadas, visitas de estudo, materiais de divulgação, seminários, centros de informação, etc.  &lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; margin: 0cm 0cm 10pt; text-indent: 35.45pt; text-align: justify&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt; &lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; margin: 0cm 0cm 10pt; text-indent: 35.45pt&quot;&gt; &lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; margin: 0cm 0cm 10pt; text-indent: 35.45pt&quot;&gt;&lt;span style=&quot;font-size: larger&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;Distribuição dos Geoparks Europeus:&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; margin: 0cm 0cm 10pt; text-indent: 35.45pt&quot;&gt; &lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; margin: 0cm 0cm 10pt; text-indent: 35.45pt&quot;&gt;&lt;img style=&quot;border-left-color: black; border-bottom-color: black; border-top-color: black; border-right-color: black&quot; height=&quot;306&quot; alt=&quot;&quot; width=&quot;376&quot; align=&quot;bottom&quot; border=&quot;1&quot; src=&quot;http://www.geoparknaturtejo.com/gfx/mapa_introducao.jpg&quot; /&gt;&lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; margin: 0cm 0cm 10pt; text-indent: 35.45pt&quot;&gt; &lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; margin: 0cm 0cm 10pt; text-indent: 35.45pt&quot;&gt; &lt;/div&gt;
&lt;div style=&quot;margin: auto 0cm; line-height: 150%&quot; align=&quot;center&quot;&gt; &lt;/div&gt;
&lt;div style=&quot;text-justify: inter-ideograph; margin: 0cm 0cm 10pt; text-indent: 35.45pt&quot;&gt; &lt;/div&gt;
&lt;div style=&quot;margin: 0cm 0cm 10pt&quot; align=&quot;center&quot;&gt; &lt;/div&gt;</description>
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  <pubDate>Wed, 17 Dec 2008 14:47:51 GMT</pubDate>
  <title>Apresentação do Tema </title>
  <author>Inês e Joana</author>
  <link>http://ichnofossils.blogs.sapo.pt/1734.html</link>
  <description>&lt;p style=&quot;margin-left: 40px; text-align: justify&quot;&gt; &lt;/p&gt;
&lt;p style=&quot;margin-left: 40px; text-align: justify&quot;&gt;&lt;a href=&quot;http://almofadinhas.com.sapo.pt/folheto.jpg&quot;&gt;&lt;img style=&quot;border-left-color: black; border-bottom-color: black; border-top-color: black; border-right-color: black&quot; height=&quot;320&quot; alt=&quot;&quot; width=&quot;427&quot; align=&quot;bottom&quot; border=&quot;1&quot; src=&quot;http://almofadinhas.com.sapo.pt/folheto.jpg&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: left&quot;&gt;               (carregar na imagem para ver em tamanho maior)              &lt;/p&gt;
&lt;p style=&quot;text-align: justify&quot;&gt;            &lt;/p&gt;
&lt;p style=&quot;text-align: justify&quot;&gt; &lt;/p&gt;
&lt;p style=&quot;text-align: justify&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;       Hoje foi a ultima apresentação que fizemos antes das férias de Natal. O objectivo era dar a conhecer melhor o tema que vamos explorar, para isso realizamos este folheto que foi entregue aos nossos colegas, onde também fazemos referência a este Blog. &lt;/span&gt;&lt;/span&gt;&lt;/p&gt;</description>
  <comments>http://ichnofossils.blogs.sapo.pt/1734.html</comments>
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  <guid isPermaLink='true'>http://ichnofossils.blogs.sapo.pt/1323.html</guid>
  <pubDate>Sun, 14 Dec 2008 18:23:11 GMT</pubDate>
  <title>O que são Icnofósseis? </title>
  <author>Inês e Joana</author>
  <link>http://ichnofossils.blogs.sapo.pt/1323.html</link>
  <description>&lt;p&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;font-size: 12pt; mso-fareast-font-family: SimSun; mso-ansi-language: PT; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA&quot;&gt;                                        &lt;wbr /&gt;          &lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;font-size: small&quot;&gt;&lt;img style=&quot;border-left-color: black; border-bottom-color: black; width: 252px; border-top-color: black; height: 206px; border-right-color: black&quot; height=&quot;188&quot; alt=&quot;&quot; width=&quot;250&quot; align=&quot;left&quot; border=&quot;1&quot; src=&quot;http://www.celtiberia.net/imagftp/im754229141-Crucianas.jpg&quot; /&gt;&lt;/span&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;span&gt;No post anterior referimo-nos a icnofósseis, vamos agora tentar-vos explicar o que são icnofósseis.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;mso-fareast-font-family: SimSun; mso-ansi-language: PT; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA&quot;&gt;         Habitualmente quando falamos de fósseis referimo-nos às partes dos organismos que ficam preservados nas rochas, normalmente as partes duras tais como as conchas, ossos e escamas. No entanto existem outros tipos de fósseis, por exemplo, há fósseis em que todo o organismo (parte duras e moles) fica preservado, a este tipo chama-se mumificação e um bom exemplo deste tipo de fossilização são os mamutes preservados nos poços de alcatrão e mosquitos em âmbar. Existem também fósseis que não passam de registos da actividade dos seres vivos no passado, a estes dá-se o nome da icnofósseis. Entre os icnofósseis mais comuns estão as pegadas e pistas de animais. Elas formam-se quando um animal anda sobre um solo que não esteja totalmente consolidado, como, por exemplo, uma areia húmida ou lamacenta. A pressão decorrente do peso do animal faz com o substrato ceda e deixe a impressão de&lt;img style=&quot;border-left-color: black; border-bottom-color: black; width: 145px; border-top-color: black; height: 119px; border-right-color: black&quot; height=&quot;83&quot; alt=&quot;&quot; width=&quot;110&quot; align=&quot;right&quot; border=&quot;1&quot; src=&quot;http://farm1.static.flickr.com/208/503382117_88f33a536c_t.jpg&quot; /&gt; parte ou da totalidade do seu corpo. &lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt; &lt;/span&gt;                  &lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;Os fósseis existentes em Penha Garcia, que vão ser alvo do nosso estudo, são icnofósseis, mais precisamente cruzianas. As cruzianas são rastos nas rochas deixados pelas trilobites aquando da sua deslocação e alimentação. &lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p class=&quot;MsoNormal&quot; style=&quot;text-justify: inter-ideograph; margin: 0cm 0cm 0pt; line-height: 150%; text-align: justify&quot;&gt;&lt;span style=&quot;font-size: medium&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS&quot;&gt;&lt;span style=&quot;mso-tab-count: 1&quot;&gt;            &lt;/span&gt;Futuramente serão publicados novos post&amp;rsquo;s sobre trilobites e cruzianas. &lt;/span&gt;&lt;/span&gt;&lt;/p&gt;</description>
  <comments>http://ichnofossils.blogs.sapo.pt/1323.html</comments>
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  <guid isPermaLink='true'>http://ichnofossils.blogs.sapo.pt/1089.html</guid>
  <pubDate>Sat, 13 Dec 2008 20:36:04 GMT</pubDate>
  <title>Breve Apresentação</title>
  <author>Inês e Joana</author>
  <link>http://ichnofossils.blogs.sapo.pt/1089.html</link>
  <description>&lt;p&gt;&lt;span style=&quot;font-family: Arial;&quot;&gt; &lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;              &lt;br /&gt;
     &lt;img width=&quot;250&quot; height=&quot;187&quot; border=&quot;1&quot; align=&quot;left&quot; src=&quot;http://esal.webhs.pt/images/zoom/LMPNHI/viewsize/DSC04002.JPG&quot; style=&quot;border-color: black;&quot; alt=&quot;&quot; /&gt;                                        &lt;wbr /&gt;      &lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt; &lt;span style=&quot;font-family: Comic Sans MS;&quot;&gt;       &lt;span style=&quot;font-size: medium;&quot;&gt;Somos duas alunas do 12º ano da &lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Comic Sans MS;&quot;&gt;&lt;a href=&quot;http://www.esal.edu.pt/&quot;&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;Escola Secundária de Amato Lusitano&lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Comic Sans MS;&quot;&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;, &lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Comic Sans MS;&quot;&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;de Castelo Branco. No âmbito da disciplina de Área de Projecto estamos a desenvolver um trabalho de investigação sobre os Icnofósseis existentes em Penha Garcia, concelho de Idanha-a-Nova, Distrito de Castelo Branco.  &lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-family: Comic Sans MS;&quot;&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;     Durante este ano lectivo tencionamos colocar neste blog vários &amp;quot;posts&amp;quot; de acordo com o desenvolvimento do nosso trabalho. Embora o nosso tema principal sejam os icnofósseis, focaremos também o nosso estudo na constituição rochosa de Penha Garcia bem como nas transformações do seu relevo, para que assim seja possível a compreensão da existência de registos fósseis aquáticos neste local.&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;</description>
  <comments>http://ichnofossils.blogs.sapo.pt/1089.html</comments>
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