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Have you ever been to the beach and nestled your toes in the sand? Over thousands of years that sand might become part of a sedimentary rock!
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www.windows.ucar.edu/tour/link=/earth/geology/sed_intro...
www.windows.ucar.edu/tour/link=/earth/geology/sed_intro.html
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Ripples in beach sand (A) may someday become rock like in the lower picture (B). Click on image for full size (143 Kb); Both images courtesy of Martin Miller, University of Oregon ... Someday, the sand that you see at the beach might become a sedimentary rock!
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www.windows.ucar.edu/tour/link=/earth/geology/sed_intro...
www.windows.ucar.edu/tour/link=/earth/geology/sed_intro.html&edu=elem
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Sedimentary rock, Dinosaur glossary explains basic paleontological terms. ... Most fossils are excavated from sedimentary rock layers. Sedimentary rock is rock that has formed from sediment, like sand, mud, small pieces of rocks. Over long periods of time, these small pieces of debris are compressed (squeezed) as they...
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www.enchantedlearning.com/subjects/dinosaurs/glossary/S...
www.enchantedlearning.com/subjects/dinosaurs/glossary/Sedimentaryrock.shtml
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A photo gallery of sedimentary rocks by Geology.com ... Sedimentary Rock Types Menu ... Breccia is a clastic sedimentary rock that is composed of large (over two millimeter diameter) angular fragments. The spaces between the large fragments can be filled with a matrix of smaller particles or a mineral cement which binds the...
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geology.com/rocks/sedimentary-rocks.shtml
geology.com/rocks/sedimentary-rocks.shtml
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You can see that each type of sedimentary rock has a story behind it. The beauty of sedimentary rocks is that their strata are full of clues to what the past world was like. Those clues might be fossils, marks left by water currents, mudcracks or more subtle features seen under the microscope or in the lab.
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geology.about.com/cs/basics_roxmin/a/aa011804b.htm
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Over a long period of time, the pieces become pressed together and form solid rock called sedimentary rock. Most sedimentary rocks form under water. Most of the earth has been covered by water some time in the past. ... Sediments can harden into sedimentary rock in two ways.
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library.thinkquest.org/J002289/sed.html
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Click here for more on igneous rock composition and texture. ... Clastic: your basic sedimentary rock. Clastic sedimentary rocks are accumulations of clasts: little pieces of broken up rock which have piled up and been "lithified" by compaction and cementation.
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jersey.uoregon.edu/~mstrick/AskGeoMan/geoQuerry13.html
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Geologists believe that sedimentary rock was forming three and a half billion years ago. Sedimentary rock is formed when mineral matter of plants and animals settle out of water and, less commonly, air or ice.
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www.edu.pe.ca/southernkings/sedimentaryec.htm
www.edu.pe.ca/southernkings/sedimentaryec.htm
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