1 10 8 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/499e2e5276cee11d12893ab9efeaf656.png d53e3882940ee6aba64a80a1d0112b1b https://wserv3.esc.cam.ac.uk/p1acollections/files/original/586fa0701c07788f911492dfd2e1836f.png eedc99ff178d8000832afce1cb240ab9 Physical Object An inanimate, three-dimensional object or substance. Note that digital representations of, or surrogates for, these objects should use Moving Image, Still Image, Text or one of the other types. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource <h2><strong>TF0311<br /></strong></h2> <h2>Ceratite</h2> Description An account of the resource <div class="element"> <h3>Species</h3> <div class="element-text">Ceratites</div> </div> <div class="element"> <h3>Stratigraphic Range</h3> <div class="element-text">Triassic</div> </div> <div class="element"> <h3>Taxonomy</h3> <div class="element-text">Phylum: Mollusca<br />Class: Cephalopoda<br />Subclass: Ammonoidea<br />Order: Ceratitida<br /><br /><br /></div> </div> <div class="element"> <h3>Distinctive Features</h3> <div class="element-text">Planispiral<br />Aperture<br />Body chamber<br />Ceratitic suture lines<br />Evolute</div> </div> <div class="element"> <h3>Preservation</h3> <div class="element-text">Internal mould</div> </div> <div class="element"> <h3>Advanced notes</h3> <div class="element-text">Set 1 specimen is a plaster cast</div> </div> suture Triassic https://wserv3.esc.cam.ac.uk/p1acollections/files/original/40cb75eae11af32a0de3c8903284bb97.png 397453cebe3f0e1234d09f7db5a316ba https://wserv3.esc.cam.ac.uk/p1acollections/files/original/882f798c3216556110c2b7d7a757cb60.png 2aa1714c226dd063819489d852cd8be9 Physical Object An inanimate, three-dimensional object or substance. Note that digital representations of, or surrogates for, these objects should use Moving Image, Still Image, Text or one of the other types. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource <h2><strong>TF0323<br /></strong></h2> <h2>Ammonite</h2> Description An account of the resource <div class="element"> <h3>Species</h3> <div class="element-text">Parkinsonia parkinsonia</div> </div> <div class="element"> <h3>Stratigraphic Range</h3> <div class="element-text">Jurassic</div> </div> <div class="element"> <h3>Taxonomy</h3> <div class="element-text">Phylum: Mollusca<br />Class: Cephalopoda<br />Subclass: Ammonoidea<br />Order: Ammonitida<br /><br /><br /></div> </div> <div class="element"> <h3>Distinctive Features</h3> <div class="element-text">Planispiral<br />Evolute<br />Ribs<br />Ammonitic suture lines</div> </div> <div class="element"> <h3>Preservation</h3> <div class="element-text">Calcite has replaced aragonite in the skeleton</div> </div> <div class="element"> <h3>Advanced notes</h3> <div class="element-text">Beware! The specimen in set 2 has a dark circular hole, which you may be tempted to identify as a siphuncle. However remember that in ammonoids the siphuncle runs around the outer edge of the chambers, so this hole is in the wrong place. It is probably there due to eccentricities of the mineralisation process.<br /><br />Why is it a dark colour when the rest of the shell is white? Generations of Earth Scientists have made the same mistake, their pencil marks fooling others into making the same error.</div> </div> Jurassic suture https://wserv3.esc.cam.ac.uk/p1acollections/files/original/927f8fe99cb56579e9f3314a48c3ba97.png f120287b0ec1334cb33c4b2d98654802 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/1dc09457e504e34107e00bfe23fc5a88.png bd0252a16a388518c1c8ba18a3518358 Physical Object An inanimate, three-dimensional object or substance. Note that digital representations of, or surrogates for, these objects should use Moving Image, Still Image, Text or one of the other types. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource <h2><strong>TF0324<br /></strong></h2> <h2>Ammonite</h2> Description An account of the resource <div class="element"> <h3>Species</h3> <div class="element-text">Amoeboceras alternans</div> </div> <div class="element"> <h3>Stratigraphic Range</h3> <div class="element-text">Jurassic</div> </div> <div class="element"> <h3>Taxonomy</h3> <div class="element-text">Phylum: Mollusca<br />Class: Cephalopoda<br />Subclass: Ammonoidea<br />Order: Ammonitida<br /><br /><br /></div> </div> <div class="element"> <h3>Distinctive Features</h3> <div class="element-text">Planispiral<br />Ammonitic suture lines visible on some moulds<br />Ribs</div> </div> <div class="element"> <h3>Preservation</h3> <div class="element-text">Most external moulds, few examples of internal moulds, pyritised</div> </div> Jurassic suture https://wserv3.esc.cam.ac.uk/p1acollections/files/original/1dd5d1b6aafd5e06176f0ceef151d20c.png 6f588e608ac7e1d45bb11da8ab8cb8b8 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/885d5d5aa870bbe635af21aba143e1ee.png d32c2f8ebcd02135a0dec0d8fcb4dd3d Physical Object An inanimate, three-dimensional object or substance. Note that digital representations of, or surrogates for, these objects should use Moving Image, Still Image, Text or one of the other types. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource <h2><strong>TF0325<br /></strong></h2> <h2>Ammonite</h2> Description An account of the resource <h3>Species</h3> <div class="element-set"> <div class="element"> <div class="element-text">Deshayesites</div> </div> <div class="element"> <h3>Stratigraphic Range</h3> <div class="element-text">Cretaceous</div> </div> <div class="element"> <h3>Taxonomy</h3> <div class="element-text">Phylum: Mollusca<br />Class: Cephalopoda<br />Subclass: Ammonoidea<br />Order: Ammonitida<br /><br /><br /></div> </div> <div class="element"> <h3>Distinctive Features</h3> <div class="element-text">Planispiral<br />Ammonitic suture pattern<br />Evolute<br />Ribs<br />Aperture</div> </div> <div class="element"> <h3>Preservation</h3> <div class="element-text">Internal mould, with aperture partially crushed</div> </div> </div> Cretaceous Jurassic suture https://wserv3.esc.cam.ac.uk/p1acollections/files/original/b003b76d4dfb95997069968d69a4cc20.png 01968adc5de6bf9128d57aa05631ae15 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/a13515476842a5be081676dfcd2b8b68.png 15ce829d715bc9420c8a9d9cff82263b Physical Object An inanimate, three-dimensional object or substance. Note that digital representations of, or surrogates for, these objects should use Moving Image, Still Image, Text or one of the other types. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource <h2><strong>TF0326<br /></strong></h2> <h2>Ammonite</h2> Description An account of the resource <div class="element"></div> <div class="element"> <div class="element"> <h3>Species</h3> <div class="element-text">Anahoplites splendens</div> </div> <div class="element"> <h3>Stratigraphic Range</h3> <div class="element-text">Cretaceous</div> </div> <div class="element"> <h3>Taxonomy</h3> <div class="element-text">Phylum: Mollusca<br />Class: Cephalopoda<br />Subclass: Ammonoidea<br />Order: Ammonitida<br /><br /><br /></div> </div> <div class="element"> <h3>Distinctive Features</h3> <div class="element-text">Planispiral<br />Involute<br />Ammonitic suture pattern<br />Ribs</div> </div> <div class="element"> <h3>Preservation</h3> <div class="element-text">Internal mould, pyritised</div> </div> <div class="element"> <h3>Advanced notes</h3> <div class="element-text">For the specimen in set 1 only part of the whole shell is present. The rest has either broken off or not been preserved at all.</div> </div> <div class="element-text"></div> </div> ammonite Cretaceous Jurassic suture https://wserv3.esc.cam.ac.uk/p1acollections/files/original/544be5dfa4507d24e71d16f1869a917f.png 256b4151e204917f9e3cdf24077e0902 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/5c2a07c0b21f88a97bec78216944a106.png 178f17ee9d5f859c42ec294d2b5851ff Physical Object An inanimate, three-dimensional object or substance. Note that digital representations of, or surrogates for, these objects should use Moving Image, Still Image, Text or one of the other types. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource <h2><strong>TF0327<br /></strong></h2> <h2>Heteromorphic ammonite</h2> Description An account of the resource <div class="element"> <h3>Species</h3> <div class="element-text">Scaphites</div> </div> <div class="element"> <h3>Stratigraphic Range</h3> <div class="element-text">Cretaceous</div> </div> <div class="element"> <h3>Taxonomy</h3> <div class="element-text">Phylum: Mollusca<br />Class: Cephalopoda<br />Subclass: Ammonoidea<br />Order: Ammonitida<br /><br /></div> </div> <div class="element"> <h3>Distinctive Features</h3> <div class="element-text">'g' shaped coiled shell<br />Ribs<br />Involute<br />Ammonitic suture lines</div> </div> <div class="element"> <h3>Preservation</h3> <div class="element-text">Internal mould</div> </div> <div class="element"> <h3>Advanced notes</h3> <div class="element-text">Heteromorphic ammonites (such as Scaphites) diversified during the late Cretaceous. They may have lived as planktonic or benthic organisms depending on where the centre of gravity lies in the shell, which is much dependent on the soft parts. Sadly these soft parts rarely preserve.</div> </div> Cretaceous suture https://wserv3.esc.cam.ac.uk/p1acollections/files/original/a7df9ee4ba246ad0597901f02ce9248e.jpg c00e1ed63dab525439bafbcd93e404ad https://wserv3.esc.cam.ac.uk/p1acollections/files/original/a96297a90c4701546417a62762349b0c.jpg 10d02e1fb68349bfd8e84366835b2ca5 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/5ef179694fabe2f138284ddd124cda39.jpg 712079ecee63ba6327aad3a1eddff03e Physical Object An inanimate, three-dimensional object or substance. Note that digital representations of, or surrogates for, these objects should use Moving Image, Still Image, Text or one of the other types. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource <h2><strong>L521<br /></strong></h2> <h2>Quartzite</h2> Subject The topic of the resource <h3>Age</h3> <div class="element-text"> <p>Precambrian</p> <h3>Location</h3> <div class="element-text"> <p>Braemar, Aberdeenshire</p> </div> </div> Description An account of the resource <div class="element"> <div class="element"> <h3>Hand Specimen</h3> <div class="element-text"> <p>Buff coloured rock.<br />Almost pure quartz, which has been very well recrystallised.<br />Faint banding could be original bedding.</p> </div> </div> <div class="element"> <h3>Thin-section</h3> <div class="element-text"> <p>Fine to medium grained recrystallised quartz with<span> </span><a href="/p1acollections/items/show/257">sutured contacts</a>.</p> </div> </div> <div class="element"> <h3>Rock History</h3> <div class="element-text"> <p>The sutured (ragged) grain boundaries and<span> </span><a href="/p1acollections/items/show/263">undulose extinction</a><span> </span>of the quartz grains indicate that this rock formed under relatively low temperature metamorphism. Had the rock been raised to higher temperatures perfect 120° grain boundaries would have formed, and the quartz would not be strained.</p> <p class="NoSpacing">Inserting the sensitive tint plate results in the vast majority of grains changing colour in the same way – most of the grains simultaneously display higher interference colours in one orientation, and lower interference colours in the other orientation. This strong<span> </span><a href="/p1acollections/items/show/192">fabric</a><span> </span>was produced by recrystallisation under directed stress, which caused all the grains to elongate in one direction. </p> </div> </div> <div class="element"></div> <div class="element"> <h3>Rock Name</h3> <div class="element-text">quartzite</div> </div> </div> banding foliation suture https://wserv3.esc.cam.ac.uk/p1acollections/files/original/d3eb994c3d6575e87d3c2adcbe5e5671.jpg 2a16c884a7af786c6616089ae2bc1421 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/acdbe621cb181f8585188f05bae056ad.jpg d92f142e31dd65ca4db820ec44f62f08 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/d1c6257526bc338ea4213e11d7061ba8.jpg 9b3c3e978edb4fab3ca1d81922539629 Physical Object An inanimate, three-dimensional object or substance. Note that digital representations of, or surrogates for, these objects should use Moving Image, Still Image, Text or one of the other types. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource <h2><strong>L520<br /></strong></h2> <h2>Quartzite</h2> Subject The topic of the resource <h3>Specimen Age</h3> <div class="element-text"> <p>Carboniferous</p> <h3>Location</h3> <div class="element-text"> <p>Coal measures<br />Corrie, Arran</p> </div> </div> Description An account of the resource <div class="element"> <h3>Hand Specimen</h3> <div class="element-text"> <p>Almost entirely made up of fine sand sized quartz grains. Does not fizz with acid, so no carbonate present. Clean white rock, apart from pink-brown weathering. Dark carbonaceous marks are plant roots.</p> </div> </div> <div class="element"> <h3>Thin-section</h3> <div class="element-text"> <p>Subangular quartz grains, typically 0.25 mm across with<span> </span><a href="/p1acollections/items/show/257">sutured contacts</a>.</p> </div> </div> <div class="element"> <h3>Rock History</h3> <div class="element-text">The sutured contacts between the quartz grains indicate that this rock has been metamorphosed to a quartzite. This is a very well recrystallised rock. The protolith was a fine-grained quartz arenite (&lt;15% matrix), but we cannot tell how angular or spherical the original grains were as they have been partially dissolved by pressure solution to form sutured contacts.</div> </div> <div class="element"></div> <div class="element"></div> <div class="element"> <h3>Rock Name</h3> <div class="element-text">quartzite</div> </div> suture