(Broken Link Removed)
http://geology.com/rocks/sedimentary-rocks.shtml
http://en.wikipedia.org/wiki/Sedimentary_rock
Where do sedimentary rocks originate?
How are they formed?
What are the three categories of sedimentary rocks?
What are the distinguishing characteristics between the three categories of rocks?
3 answers
What are the three categories of sedimentary rocks?
clastic rock formed from fragments broken off from parent rock, by
o weathering in situ or
o erosion by water, ice or wind
followed by transportation of sediments, to the place of deposition;
biogenic activity; or
precipitation from solution.
The sediments are then compacted and converted to rock by the process of lithification
clastic rock formed from fragments broken off from parent rock, by
o weathering in situ or
o erosion by water, ice or wind
followed by transportation of sediments, to the place of deposition;
biogenic activity; or
precipitation from solution.
The sediments are then compacted and converted to rock by the process of lithification
This is from the second link above:
"There are three basic types of sedimentary rocks:
1) clastic sedimentary rocks such as breccia, conglomerate, sandstone and shale, that are formed from mechanical weathering debris;
2) chemical sedimentary rocks such as rock salt and some limestones, that form when dissolved materials precipitate from solution; and,
3) organic sedimentary rocks such as coal and some limestones which form from the accumulation of plant or animal debris."
"There are three basic types of sedimentary rocks:
1) clastic sedimentary rocks such as breccia, conglomerate, sandstone and shale, that are formed from mechanical weathering debris;
2) chemical sedimentary rocks such as rock salt and some limestones, that form when dissolved materials precipitate from solution; and,
3) organic sedimentary rocks such as coal and some limestones which form from the accumulation of plant or animal debris."
2 answers