An Echo-Free Structure Is Described As

question 16

Multiple Choice

An echo-free structure is described as:

• A) echogenic.
• B) sonolucent.
• C) heterogeneous.
• D) homogeneous.

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Definitions:

Salt Dome

A type of geological structure formed when a thick bed of evaporite minerals (mainly salt) found at depth intrudes vertically into surrounding rock layers.

Volcanic Conduit

A pipe-like structure through which magma moves from a magma chamber to the Earth's surface.

Diamond Pipe

A steep, cylindrical- to funnel-shaped volcanic conduit that contains diamonds dispersed in an igneous rock; synonym kimberlite pipe.

Copper Veins

Concentrated occurrences of copper minerals found within rock formations, often extracted through mining.