The basaltic rock that forms volcanic mountains where mantle plumes reach Earth’s surface is usually
composed of
(1) fine-grained, dark-colored felsic minerals (3) coarse-grained, light-colored felsic minerals
(2) fine-grained, dark-colored mafic minerals (4) coarse-grained, light-colored mafic minerals

Question

03-01-2016
Geography

contestada

The basaltic rock that forms volcanic mountains where mantle plumes reach Earth’s surface is usually
composed of
(1) fine-grained, dark-colored felsic minerals (3) coarse-grained, light-colored felsic minerals
(2) fine-grained, dark-colored mafic minerals (4) coarse-grained, light-colored mafic minerals

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taskmasters taskmasters · Answer 1 · 2016-01-11T05:56:45+01:00

The basaltic rock that forms volcanic mountains where the mantle plumes reach the Earth's surface is usually composed of fine-grained, dark-colored felsic materials. Basalt is a hard, black rock which is formed when magma or lava from volcanic eruptions cools down and hardens. It consists of fine mineral grains. It can also consist of holes that were filled by volcanic gases. Basalt is black because the minerals that it is made up of contains iron. Iron gives basalt its black colour.

gahagang gahagang · Answer 2 · 2020-12-18T16:53:50+01:00

gahagang gahagang

18-12-2020

Answer:

2) Fine-grained, dark-colored felsic materials.

Explanation:

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