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Sedimentary rock is formed by the settling down of bits of sediment material on the surface of the Earth and within bodies of water. The deeper down the layers of sediment are, the older the layer is. If a layer of sedimentary rock is nearer to the surface, then that layer was formed much more recently.
The different layers can show different sorts of records. For example, a fossil found in a deeper layer of sediment is very probably a predecessor of a later fossil found closer to the surface of the Earth. With the help of such dating methods as the layer in which the fossil was found and radiocarbon dating, the numerous finds that have been discovered have revealed a reliable timeline of events related to life on Earth such as evolution, periods of great dyings-out, and periods of new life forms emerging i.e. the Cambrian Explosion.
Sedimentary rocks also reveal a record of geologic activities like great floods and ancient rivers - like the powerful waters that carved out the Grand Canyon.
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What two things do sedimentary rocks record?
Sedimentary rocks record; 1. Time (Age) of formation. 2. Environment of formation.
What do sedimentary rocks preserve?
Sedimentary rocks preserve a record of the environments that existed when they formed.
Rocks formed from weathered debris from preexisisting rocks are called?
They are called clastic sedimentary rocks.
Sedimentary rocks record past geological events and what else?
They also record the history of life and climate.
Which is not the process in the formation of sedimentary rocks?
how does the fossil record provide evidence for evolution?!
Are sedimentary rocks classified tofoliated sedimentary rocks?
Metamorphic rocks are classified by foliation or lack there of, not sedimentary rocks. They are classified into Clastic Sedimentary, and Chemical Sedimentary.
What occurs when sedimentary rocks are deposited on top of uplifted and eroded metamorphic or igneous rocks?
An uncomformity will occur in the rock record.
Are sedimentary rocks formed from fragments of other rocks chemical sedimentary rocks?
No. The rocks you describe are clastic or detrital sedimentary rocks.
What has the author Sam Boggs written?
Sam Boggs has written: 'Petrology of sedimentary rocks' -- subject(s): Sedimentary Rocks 'Petrology of sedimentary rocks' -- subject(s): Rocks, Sedimentary, Sedimentary Rocks
Are there any fossils in sedimentary rocks?
Yes all fossils occur in sedimentary rocks or rocks that began as sedimentary rocks.
What are the markings on sedimentary rocks that record the wave motion of wind or water called?
Ripple marks
What are the markings on sedimentary rocks that record the wave motion of the wind or water called?
Ripple marks
