GEOLOGY

EARTH SCIENCE

SEDIMENTS

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Which process could lead most directly to the formation of a nonclastic sedimentary rock like halite (rock salt)?

A	metamorphism of unmelted material
B	slow solidification of molten material
C	sudden upwelling of lava at a mid-ocean ridge
D	precipitation of minerals from evaporating water

Explanation:

Detailed explanation-1: -Erosion and weathering include the effects of wind and rain, which slowly break down large rocks into smaller ones. Erosion and weathering transform boulders and even mountains into sediments, such as sand or mud.

Detailed explanation-2: -Nonclastic sedimentary rocks form from chemical reactions, chiefly in the ocean. Nonclastic and clastic sedimentary rocks are the only members of the rock family that contain fossils as well as indicators of the climate that was present when the rock was formed.

Detailed explanation-3: -Limestone is the most abundant of the non-clastic sedimentary rocks. Limestone is produced from the mineral calcite (calcium carbonate) and sediment. The main source of limestone is the limy ooze formed in the ocean.

Detailed explanation-4: -Evaporites are minerals that precipitated from evaporating saltwater. Common evaporite minerals are gypsum and halite. 2. Marine evaporites are the chemical sediments and sedimentary rocks formed by the evaporation of seawater in restricted, semi-enclosed inlets or basins.

There is 1 question to complete.