2007-10-18 10:31:10 · 6 answers · asked by jessica s 1 in Science & Mathematics ➔ Earth Sciences & Geology
Do you mean identify what type of sedimentary rock it is? If so there's:
Grain/clast size
Texture: sphericity of the grains and the angularity or roundness of the grains
Sorting-how well sorted the grains are into ones of a similar size
Colour- can show mineralogy and environment in which rock was formed
Composition of the clasts and the cement
Fossil evidence can be used for dating
If you mean identifying whether something is a sedimentary rock then:
they form in layers or beds
they have grains rather than crystals like igneous and metamorphic have
fossils usually only occur in sedimentary rock. Metamorphism usually destroys any fossil evidence and lava destroys the organic material before fossilisation can take place.
2007-10-18 11:47:47 · answer #1 · answered by lotr_uk 1 · 0⤊ 0⤋
Identifying Sedimentary Rocks
2016-11-15 05:12:00 · answer #2 · answered by pazos 4 · 0⤊ 0⤋
Fossils. If you find fossils in a rock, you can be pretty sure it is sedimentary. The processes used to form igneous and metamorphic will destroy most or all fossils.
Laying is a good indicator of sedimentary rocks, but both igneous and metamorphic rocks can display "false" bedding. Metamorphics can have cleavage or foliation which looks a lot like bedding. Igneous rocks can have cracks known as exfoliation joints which look a lot like bedding.
Click the links below to see example pics of "false bedding".
2007-10-18 11:24:48 · answer #3 · answered by TheBodyElectric 3 · 0⤊ 0⤋
Rock and sediment layered in horizonal strata.
2007-10-22 05:25:00 · answer #4 · answered by Jim 1 · 0⤊ 0⤋
SEDIMENTARY ROCKS ARE NORMALLY FOUND IN LAYERS WITH SLATE, SHALE, AND COAL BEING GOOD EXAMPLES.
2007-10-18 10:35:38 · answer #5 · answered by Loren S 7 · 0⤊ 0⤋
Hope this helps!
2015-05-02 01:19:57 · answer #6 · answered by Glynn 1 · 0⤊ 0⤋