Physical Geology
16th Edition
ISBN: 9781259916823
Author: Plummer, Charles C., CARLSON, Diane H., Hammersley, Lisa
Publisher: Mcgraw-hill Education,
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Chapter 3, Problem 1TYK
Summary Introduction
The rock that possesses large crystals of plagioclase feldspar of fine-grained groundmass of medium grey in color. The name of the texture and process of formation of this rock.
Introduction:
Igneous rocks are very important types of rocks that are formed from the solidification and cooling of lava. These igneous rocks can be categorized into intrusive and extrusive rocks on the basis of solidification place.
Expert Solution & Answer
Explanation of Solution
An igneous rock that contains large crystals of plagioclase feldspar held within a very fine-grained groundmass of medium grey color is basalt. Basalt can be defined as the extrusive type of igneous rocks which contain magnesium and iron and also contain a high amount of silica.
The texture of basalt rock is fine-grained which ranges from glassy, porphyritic, and massive type of textures. Basalt is a type of igneous rock which forms as a result of solidification or cooling of magma or lava. Magma is a molten rock which contains silica and various dissolved gases.
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