GEOLOGY

EARTH SCIENCE

SEDIMENTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following are necessary for sedimentary rocks to form?
A
extreme heat and organic matter
B
extreme pressure and lots of time
C
pressure only
D
time only
Explanation: 

Detailed explanation-1: -Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors. Conditions like these are found deep within the Earth or where tectonic plates meet.

Detailed explanation-2: -The most important geological processes that lead to the creation of sedimentary rocks are erosion, weathering, dissolution, precipitation, and lithification. Erosion and weathering include the effects of wind and rain, which slowly break down large rocks into smaller ones.

Detailed explanation-3: -Sedimentary rocks are one of three main types of rocks, along with igneous and metamorphic. They are formed on or near the Earth’s surface from the compression of ocean sediments or other processes.

Detailed explanation-4: -Sedimentary rocks can be subjected to heat and/or pressure causing them to change form and become metamorphic rocks, or causing them to melt and eventually erupt as igneous rocks.

There is 1 question to complete.