Sedimentary rocks are types of rock that are formed by the deposition and
subsequent cementation of that material at the Earth's surface and within bodies
Breccia is a clastic sedimentary rock that is composed of large (over two-
millimeter diameter) angular fragments. The spaces between the large fragments
Sedimentary rock definition at Dictionary.com, a free online dictionary with
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Sedimentary rock, rock formed at or near the Earth's surface by the accumulation
and lithification of sediment (detrital rock) or by the precipitation from solution at ...
Jan 20, 2015 ... A simple explanation of how sedimentary rocks are formed.
Dec 15, 2014 ... Sedimentary rocks are formed from pre-existing rocks or pieces of once-living
organisms. They form from deposits that accumulate on the ...
Introducing sedimentary rocks, second of the three great rock classes (along with
igneous and metamorphic rocks).
Jan 20, 2013 ... A brief introduction to sedimentary rocks. You can download a copy of the
flowchart at http://goo.gl/3PRQb.
Apr 14, 2012 ... Visit http://www.makemegenius.com ,watch all Science & other educational
videos for kids for free. When mountains are old, lots of rock gets ...
Sedimentary rocks are made when sand, mud and pebbles get laid down in
layers. Over time, these layers are squashed under more and more layers.