GENERAL GEOLOGY

GEOLOGY

PHYSICAL GEOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
This feature is formed when calcium carbonate is deposited on the ceiling of a cave.
A
stalagmite
B
sink hole
C
stalactite
D
pillar
Explanation: 

Detailed explanation-1: -Stalagmite formation occurs only under certain pH conditions within the cavern. They form through deposition of calcium carbonate and other minerals, which is precipitated from mineralized water solutions.

Detailed explanation-2: -Stalagmites and stalactites are some of the best known cave formations. They are icicle-shaped deposits that form when water dissolves overlying limestone then re-deposits calcium carbonate along the ceilings or floors of underlying caves. Stalactites form along ceilings and hang downward.

Detailed explanation-3: -Most stalactites and stalagmites are composed of calcite, a few of aragonite, the rhombohedral and orthorhombic phases of calcium carbonate (CaCO3), respectively.

Detailed explanation-4: -A stalactite is an icicle-shaped formation that hangs from the ceiling of a cave and is produced by precipitation of minerals from water dripping through the cave ceiling. Most stalactites have pointed tips.

Detailed explanation-5: -As the carbon dioxide is released, calcite is precipitated (redeposited) on cave walls, ceilings and floors. As the redeposited minerals build up after countless water drops, a stalactite is formed.

There is 1 question to complete.