GEOLOGY

EARTH SCIENCE

MINERALOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Sandstone, Limestone, Shale, and gypsum are examples of
A
metamorphic rocks
B
sedimentary rocks
C
igneous rocks
D
None of the above
Explanation: 

Detailed explanation-1: -Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at the Earth’s surface, followed by cementation. Typical sedimentary rocks are sandstone, limestone, Laterite, shale, Gypsum etc.

Detailed explanation-2: -Common sedimentary rocks include sandstone, limestone, and shale. These rocks often start as sediments carried in rivers and deposited in lakes and oceans. When buried, the sediments lose water and become cemented to form rock.

Detailed explanation-3: -The accumulation of plant matter, such as at the bottom of a swamp, is referred to as organic sedimentation. Thus, there are 4 major types of sedimentary rocks: Clastic Sedimentary Rocks, Chemical Sedimentary Rocks, Biochemical Sedimentary Rocks, and Organic Sedimentary Rocks.

Detailed explanation-4: -Shale is a soft, brittle, fine-grained, and easily eroded sedimentary rock formed from mineral-rich silt, or mud, that was deposited in an aquatic environment, buried by other sediment, and compacted and cemented into hard rock. When exposed at the surface by erosion, shale weathers into thin layers called plates.

Detailed explanation-5: -Gypsum is a soft, light-colored sedimentary rock deposited in ancient seas that covered Ohio during the Silurian Period. It occurs in both mineral form (selenite) and as a rock in bedded layers. Gypsum occurs interbedded with salt (halite, NaCl) and anhydrite (CaSO4).

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