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Geology Portals Geophysics Geochronology Petrology Volcanology Mineral Gallery barite Read more > Aluminium Read more > Malachite Read more > Opal Read more > Featured article Diorite is a grey to dark grey intermediate intrusive igneous rock composed principally of plagioclase feldspar (typically andesine), biotite, hornblende, and/or pyroxene. It may contain small amounts of quartz, microcline and olivine. Zircon, apatite, sphene, magnetite, ilmenite and sulfides occur as accessory minerals... READ MORE... News New geological map redefines understanding of Greenland's subterranean rocks - Space Daily - - 2024/04/19 10:34 New geological map redefines understanding of Greenland's subterranean rocks  Space Daily... You can explore this ‘weird and scenic’ planet. And you don’t have to leave Idaho | Opinion - Idaho Statesman - - 2024/04/19 10:00 You can explore this ‘weird and scenic’ planet. And you don’t have to leave Idaho | Opinion  Idaho Statesman... NJ earthquake shook local geologists into action, sending them to precarious places - Daily Record - - 2024/04/19 08:34 NJ earthquake shook local geologists into action, sending them to precarious places  Daily Record...

Blog Granpa • 15 May 2019 0 Internal structure of Earth Franciscan (Pressure) Barrovian (Heat&Pressure) Buchan (Heat) Metasomatism Density Mass Volume Radius Depth Width Gravity (1)Zeolite (2)PP (3)Blueschist (4)Eclogite (1)Zeolite (2)Greenschist (3)Amphibolite (4)Granulite (1)Zeolite (2)Albite-epidote-Ho… Read Full Post Organisations Organisations dedicated to various fields of Geology International Union of Geological Sciences International Commission on Stratigraphy Smithsonian Institute

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