GET https://www.preprod-yousg3q-etbsswybjvlic.fr-3.platformsh.site/en/media/136-fossilization

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App\Entity\MediaTranslation
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App\Entity\MediaTranslation {#1405
  -id: 338
  -title: "Fossilization"
  -description: """
    <p>This animation shows the fossilization by permineralization of a living organism (the example used is a trilobite). The time scale is consistent with the dimensions of the principle stages in the transformation of a fossil to rock.</p>\r\n
    \r\n
    <ul>\r\n
    \t<li>Decomposition of organic (soft) parts</li>\r\n
    \t<li>Burial of the carapace (exoskeleton) by sediments</li>\r\n
    \t<li>Permineralization of the exoskeleton</li>\r\n
    \t<li>Geological processes</li>\r\n
    \t<li>Erosion bringing the buried fossil to the surface</li>\r\n
    </ul>
    """
  -legends: """
    Trilobite fossil\r\n
    Life and death of a trilobite\r\n
    Millions of years\r\n
    Now\r\n
    Decomposition of organic matter\r\n
    Sedimentation\r\n
    Permineralization\r\n
    Geological processes\r\n
    Weathering and erosion\r\n
    Discovery of fossil
    """
  -goals: """
    <ul>\r\n
    \t<li>To illustrate the basic processes involved in the fossilization process.</li>\r\n
    \t<li>To become aware of the vastness of the Geological Time Scale.</li>\r\n
    </ul>
    """
  -more: """
    <p>The first <strong>fossils </strong>were discovered in China 2000 years ago. Depending on the nature of the organisms in question,&nbsp; there are several processes of fossilization that allow, or do not allow,&nbsp; the conservation of the original composition of the living organism, thus providing testimony of a past, lost form of life.<br />\r\n
    <br />\r\n
    Organisms possessing a mineral skeleton fossilize after decomposition of their soft parts and burial under sediments. Two processes are possible:</p>\r\n
    \r\n
    <ol>\r\n
    \t<li>The skeleton conserves its original composition and is transformed into rock via the same process of sedimentation as the rock in which it finds itself buried.</li>\r\n
    \t<li>Chemical reactions dissolve the skeleton and the cavity thus created becomes filled with fine sediment. One obtains a <strong>cast </strong>of the original organism.</li>\r\n
    </ol>\r\n
    \r\n
    <p>Organisms composed exclusively of <strong>organic material</strong> (plants, bacteria, animals without skeletons (like worms)) have a very low probability of being fossilized. There are, however, three ways in which this could occur:</p>\r\n
    \r\n
    <ol>\r\n
    \t<li>The transformation takes place after burial under successive layers of sediment, sheltered from oxidation. The soft parts are flattened out, and anaerobic microbes transform the oxygen and nitrogen containing compounds of the fossilizing organism in such a way as to yield pure carbon. The details of the organism are thus preserved in a film of carbon &ndash; a process known as <strong>carbonization</strong>.</li>\r\n
    \t<li>Just after the death of the animal, a process of <strong>permineralization </strong>of soft parts could occur, resulting in the replacement of organic matter in the organism with mineral matter via the action of water rich in mineral salts. The fragile parts thus become more resistant. This type of fossil is a mineral replica of the same dimensions as the original organism.</li>\r\n
    \t<li>Soft parts can also be preserved by incrustation if the living organism finds itself trapped in a medium that protects it from oxidation, such as ice (mammoth fossils) or amber (insect fossils).</li>\r\n
    </ol>
    """
  -scenario: null
  -features: null
  -publishedAt: DateTimeImmutable @1431302400 {#1402
    date: 2015-05-11 00:00:00.0 UTC (+00:00)
  }
  -preventIndexForSearch: false
  #locale: "en"
  #translatable: App\Entity\Media {#1308 …}
  #status: "published"
  #createdAt: DateTime @1208988000 {#1403
    date: 2008-04-23 22:00:00.0 UTC (+00:00)
  }
  #updatedAt: DateTime @1703983439 {#1404
    date: 2023-12-31 00:43:59.0 UTC (+00:00)
  }
}
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[
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  "internal_api_media_options" => [
    "withBaseNodeName" => true
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MediaTranslationNormalizer (681.72 ms) 681.81 ms

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