How long has sedimentary rock been around?

Answer

The age of sedimentary rock can vary quite a bit since it is still being formed. Sedimentary rock is formed by layers of sediment being pressurized and forming rock. This process has been occurring since the formation of the Earth, so some sedimentary rock is very old, and some of it will be very new, relatively speaking.
Q&A Related to "How long has sedimentary rock been around?"
Although it is not known for sure, it is estimated that the earth has been around for over 4.6 billion years. The estimation comes from the age of the rocks.
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As long as dirt! ok enough humor Right around 1948, or so the mixing of Americans of different ethnic backgrounds and from different parts of the country during the second world war
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Forensic pathology started in the 1600s although it was referred to as legal medicine or medical jurisprudence at the time. Physicians and surgeons became part of the judicial process
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Doors opened on December 8, 2005. Here's my blog post from 5 years back: http://yahooza.blogspot.c. om/2005.
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1 Additional Answer
Sedimentary rock is formed then minerals, and organic matter settles at the bottom of a body of water. Here it is slowly turned into rock by the crushed into rock. The oldest sedimentary rock is about 3.9 billion years old. You can find more information here: www.lpi.usra.edu
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Sedimentary rock is formed by mineral and other materials sitting in water for an extremely long time. While the minerals and other materials are in the water, ...
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