Campus Feature Amphibolite with Granite Inclusions Part of the EASP Geology Walk Information Still Needed Department of Earth, Atmospheric, and Planetary Sciences
Campus Feature Amphibolite with Granitic Inclusions Part of the EASP Geology Walk Information Still Needed Department of Earth, Atmospheric, and Planetary Sciences
Campus Feature Chert Breccia Breccia is a detrital sedimentary rock composed of gravel-sized fragments. Breccia is very similar to conglomerate; however, the pieces that make up breccia are sharp and angular whereas conglomerates have rounded particles. Breccia’s sharp particles indicate that the rock has not traveled very far from its origin so the angles of the particles have not been worn down. This particular specimen is made from the sedimentary rock chert, and is therefore called chert breccia. Department…
Campus Feature Fountain-High Grade Gneiss Amigmalite Part of the EASP Geology Walk Information needed Department of Earth, Atmospheric, and Planetary Sciences
Campus Feature Gneiss Part of the EASP Geology Walk Gneiss is a metamorphic rock formed by changing schist, granite, or volcanic rocks through intense heat and pressure. Gneiss is foliated, which means that it has layers of lighter and darker minerals. These layers are of different densities and come about as a result of the intense pressure used to form gneiss. Gneiss is made up of coarse-grained minerals such as quartz and feldspar. Department of Earth, Atmospheric, and…
Campus Feature Granite Part of the EASP Geology Walk Granite is an intrusive igneous rock formed deep in the earth. When magma cools, minerals within it form crystalline grains. On the earth’s surface lava cools quickly to form small crystalline grains (and therefore rocks such as rhyolite), but beneath the surface of the earth, magma takes a much longer time to cool. This allows the minerals to develop into much larger grains. Rocks with these larger grains are…
Campus Feature Granite Gneiss Part of the EASP Geology Walk Granite is an intrusive igneous rock formed deep in the earth. When magma cools, minerals within it form crystalline grains. On the earth’s surface lava cools quickly to form small crystalline grains (and therefore rocks such as rhyolite), but beneath the surface of the earth, magma takes a much longer time to cool. This allows the minerals to develop into much larger grains. Rocks with these larger grains are…
Campus Feature Granite Gneiss Part of the EASP Geology Walk Gneiss is a metamorphic rock formed by changing schist, granite, or volcanic rocks through intense heat and pressure. Gneiss is foliated, which means that it has layers of lighter and darker minerals. These layers are of different densities and come about as a result of the intense pressure used to form gneiss. Gneiss is made up of coarse-grained minerals such as quartz and feldspar. Granitic gneiss has a mineral…
Campus Feature Granite Gneiss/Schist Part of the EASP Geology Walk Gneiss is a metamorphic rock formed by changing schist, granite, or volcanic rocks through intense heat and pressure. Gneiss is foliated, which means that it has layers of lighter and darker minerals. These layers are of different densities and come about as a result of the intense pressure used to form gneiss. Gneiss is made up of coarse-grained minerals such as quartz and feldspar. Granitic gneiss has a mineral…
Campus Feature Granitic Foliated Gneiss Part of the EASP Geology Walk Gneiss is a metamorphic rock formed by changing schist, granite, or volcanic rocks through intense heat and pressure. Gneiss is foliated, which means that it has layers of lighter and darker minerals. These layers are of different densities and come about as a result of the intense pressure used to form gneiss. Gneiss is made up of coarse-grained minerals such as quartz and feldspar. Granitic gneiss has a mineral…
