Glacial Polished Igneous Rock Is Especially Common In at Frieda Davis blog

Glacial Polished Igneous Rock Is Especially Common In. Elongated grooves are created by fragments of rock embedded in the ice at the base of a glacier scraping along the bedrock surface called glacial striations. In addition, rock flour as fine grit in the ice can polish a hard granite or quartzite bedrock to a smooth surface called glacial polish. Igneous rocks are divided into two groups, intrusive or extrusive, depending upon where the molten rock solidifies. As has already been described, igneous rocks are classified into four categories, based on either their chemistry or their mineral. Igneous rocks make up most of the rocks on earth. Others, such as pumice, contain holes where gas bubbles were trapped when the material was still hot and molten. Granite is the most common intrusive igneous rock (see figure 2 for an example). The holes make pumice so light that it actually floats in water.

Igneous rocks
from www.sandatlas.org

As has already been described, igneous rocks are classified into four categories, based on either their chemistry or their mineral. Others, such as pumice, contain holes where gas bubbles were trapped when the material was still hot and molten. Igneous rocks make up most of the rocks on earth. Elongated grooves are created by fragments of rock embedded in the ice at the base of a glacier scraping along the bedrock surface called glacial striations. In addition, rock flour as fine grit in the ice can polish a hard granite or quartzite bedrock to a smooth surface called glacial polish. The holes make pumice so light that it actually floats in water. Granite is the most common intrusive igneous rock (see figure 2 for an example). Igneous rocks are divided into two groups, intrusive or extrusive, depending upon where the molten rock solidifies.

Igneous rocks

Glacial Polished Igneous Rock Is Especially Common In Igneous rocks make up most of the rocks on earth. Igneous rocks make up most of the rocks on earth. Elongated grooves are created by fragments of rock embedded in the ice at the base of a glacier scraping along the bedrock surface called glacial striations. In addition, rock flour as fine grit in the ice can polish a hard granite or quartzite bedrock to a smooth surface called glacial polish. Igneous rocks are divided into two groups, intrusive or extrusive, depending upon where the molten rock solidifies. The holes make pumice so light that it actually floats in water. Granite is the most common intrusive igneous rock (see figure 2 for an example). As has already been described, igneous rocks are classified into four categories, based on either their chemistry or their mineral. Others, such as pumice, contain holes where gas bubbles were trapped when the material was still hot and molten.

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