GEOLOGY

EARTH SCIENCE

SEDIMENTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Particles of sediment collected from a lake bottom averaged 1.2 cm in diameter. If left on the lake bottom to become buried by more sediment and compressed into rock, these particles would form
A
sandstone
B
conglomerate
C
quartzite
D
granite
Explanation: 

Detailed explanation-1: -D) siltstone 1. Which sedimentary rock would be formed by the compaction and cementation of particles 1.5 centimeters in diameter?

Detailed explanation-2: -Clastic rocks are composed of fragments, or clasts, of pre-existing minerals and rock. A clast is a fragment of geological detritus, chunks, and smaller grains of rock broken off other rocks by physical weathering.

Detailed explanation-3: -A sedimentary rock is a layered rock that is formed from the compaction, cementation, and the recrystallization of sediments. Compaction is the squeezing together of layers of sediment due to the great weight of overlying layers of rock.

Detailed explanation-4: -Conglomerate = clastic; composed of silicate; formed by compaction and cementation of LARGE land derived sediments.

There is 1 question to complete.