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  2. Khondalite - Wikipedia

    en.wikipedia.org/wiki/Khondalite

    Khondalite at Rushikonda, Visakhapatnam, India Khondalite is a foliated metamorphic rock.In India, it is also called Bezwada Gneiss and Kailasa Gneiss. [1] It was named after the Khond tribe [2] [1] of Odisha and Andhra Pradesh because well-formed examples of the rock were found in the inhabited hills of these regions of eastern India.

  3. List of rock formations - Wikipedia

    en.wikipedia.org/wiki/List_of_rock_formations

    Rocks formations and the Dedo de Deus (God's Finger) peak in the background, Serra dos Órgãos National Park, Rio de Janeiro state, Brazil Raouché or Pigeons' Rock in Beirut, Lebanon Druid Arch, Canyonlands National Park, Utah, US View of Meteora, Greece Rock formations in Ongamira Valley, Sierras de Córdoba, Argentina Belogradchik Rocks, Balkan Mountains, Bulgaria "Jaws", an erosional fin ...

  4. Joint (geology) - Wikipedia

    en.wikipedia.org/wiki/Joint_(geology)

    Horizontal joints in the sedimentary rocks of the foreground and a more varied set of joints in the granitic rocks in the background. Image from the Kazakh Uplands in Balkhash District, Kazakhstan. Orthogonal joint sets on a bedding plane in flagstones, Caithness, Scotland Joints in the Almo Pluton, City of Rocks National Reserve, Idaho.

  5. List of rock types - Wikipedia

    en.wikipedia.org/wiki/List_of_rock_types

    The following is a list of rock types recognized by geologists.There is no agreed number of specific types of rock. Any unique combination of chemical composition, mineralogy, grain size, texture, or other distinguishing characteristics can describe a rock type.

  6. Geology of Ethiopia - Wikipedia

    en.wikipedia.org/wiki/Geology_of_Ethiopia

    The geology of Ethiopia includes rocks of the Neoproterozoic East African Orogeny, Jurassic marine sediments and Quaternary rift-related volcanism. Events that greatly shaped Ethiopian geology is the assembly and break-up of Gondwana and the present-day rifting of Africa.

  7. Rock mechanics - Wikipedia

    en.wikipedia.org/wiki/Rock_mechanics

    Rock mechanics is a theoretical and applied science of the mechanical behavior of rocks and rock masses. [1] Compared to geology, it is the branch of mechanics concerned with the response of rock and rock masses to the force fields of their physical environment. [1] Grus sand, and the granitoid from which it is derived.

  8. Lamproite - Wikipedia

    en.wikipedia.org/wiki/Lamproite

    Research at Argyle diamond have shown that most stones are of E-type; they originate from eclogite source rocks and were formed under high temperature ~1,400 °C (2,600 °F). The Argyle diamond mine is the main source of rare pink diamonds. Olivine lamproite pyroclastic rocks and dikes are sometimes hosts for diamonds.

  9. QAPF diagram - Wikipedia

    en.wikipedia.org/wiki/QAPF_diagram

    QAPF diagram for classification of plutonic rocks. A QAPF diagram is a doubled-triangle plot diagram used to classify intrusive igneous rocks based on their mineralogy.The acronym QAPF stands for "Quartz, Alkali feldspar, Plagioclase, Feldspathoid (Foid)", which are the four mineral groups used for classification in a QAPF diagram.

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