1 10 1 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/ccf4a152eba569461bf6ef055f4b1967.jpg 09fce135a7daa260d1040c49fa782944 https://wserv3.esc.cam.ac.uk/p1acollections/files/original/f138a19e1e584077538e0a5fb26e22db.jpg 01aab9478722295690d2c9ca02f53a9b https://wserv3.esc.cam.ac.uk/p1acollections/files/original/8bb0c75035b89eb9fa8462899036cdf4.jpg 4ac94845dc4d2450665869ea8855f2ea 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>L201<br /></strong></h2> <h2>Tuff</h2> Description An account of the resource <div class="element"> <h3>Hand Specimen</h3> <div class="element-text"> <p>Fine-grained, blue-green, sedimentary texture.<span> </span><br />Slaty<span> </span><a href="/p1acollections/items/show/180">cleavage</a>.<span> </span><br />Some patches of lighter and finer-grained material.</p> </div> </div> <div class="element"> <h3>Thin-section</h3> <div class="element-text"> <p>Slaty cleavage due to the alignment of chlorite and muscovite.<span> </span><br />Cross-cut by the blobs of the fine-grained material. These are orange-brown in thin-section. Could be water-lain ash, ripped-up to form clasts.<span> </span><br />Very fine-grained, brown matrix, probably<span> </span><a href="/p1acollections/items/show/266">volcanic</a><span> </span>ash.<span> </span><br />Carbonate, quartz and opaque clasts slightly larger than the matrix.</p> </div> </div> <div class="element"> <h3>Rock History</h3> <div class="element-text">Fine-grained volcanic ash deposited by an explosive volcanic eruption has undergone low grade metamorphism to produce a slaty cleavage.</div> </div> <div class="element"></div> <div class="element"></div> <div class="element"> <h3>Rock Name</h3> <div class="element-text">tuff</div> </div> cleavage metamorphism slaty