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Category Archives: Physical geography
Lithosphere, LAB and Other Spheres of Earth
The lithosphere is the solid, outer part of the Earth. The lithosphere includes the brittle upper portion of the mantle and the crust, the outermost layers of Earth’s structure. below. The lithosphere is the most rigid of Earth’s layers. Although the rocks of the lithosphere are still considered elastic, they are not viscous. … Continue reading
Posted in Class Notes, earth, Physical geography
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Migmatite : A Mixed Rock
Migmatite is a rock that is a mixture of metamorphic rock and igneous rock. It is created when a metamorphic rock such as gneiss partially melts, and then that melt recrystallizes into an igneous rock, creating a mixture of the unmelted metamorphic part with the recrystallized igneous … Continue reading
Posted in Class Notes, earth, Physical geography, rocks
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Parasitic Fold
Parasitic fold is a little fold sitting on a major fold. Image Link
Posted in Class Notes, earth, Physical geography, topography
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Asthenosphere
Asthenosphere is zone of Earth’s mantle (upper part of the mantle)lying beneath the lithosphere and believed to be much hotter and more fluid than the lithosphere. The asthenosphere extends from about 100 km to about 700 km below Earth’s surface. It was first named … Continue reading
Posted in Class Notes, earth, Physical geography
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