47 relations: Africa, Anorthosite, Biligiriranga Hills, Corundum, Diorite, Enderbite, Facies, Feldspar, Gabbro, Granite, Granoblastic, Granodiorite, Granulite, Green ubatuba, Hypersthene, India, Job Charnock, Kanyakumari, Khondalite, Limestone, Madagascar, Magma, Mangerite, Marble, Metamorphic rock, Microcline, Monzogranite, Monzonite, Nilgiri mountains, Norite, Norway, Olivine, Perthite, Plasticity (physics), Pleochroism, Proterozoic, Protolith, Pyroxene, Quartz, Rogaland, Scapolite, Sedimentary rock, Shevaroy Hills, Sri Lanka, Thomas Henry Holland, Tonalite, Western Ghats.
Africa is the world's second largest and second most-populous continent (behind Asia in both categories).
Anorthosite is a phaneritic, intrusive igneous rock characterized by its composition: mostly plagioclase feldspar (90–100%), with a minimal mafic component (0–10%).
The Biligirirangana Hills, commonly called BR Hills, is a hill range situated in south-eastern Karnataka, at its border with Tamil Nadu (Erode District) in South India.
Corundum is a crystalline form of aluminium oxide typically containing traces of iron, titanium, vanadium and chromium.
Diorite is an intrusive igneous rock composed principally of the silicate minerals plagioclase feldspar (typically andesine), biotite, hornblende, and/or pyroxene.
In geology, enderbite is an igneous rock of the charnockite series, consisting essentially of quartz, antiperthite (or perthite), orthopyroxene (usually hypersthene) and magnetite, and is equivalent to an orthopyroxene bearing tonalite.
In geology, a facies (pronounced variously as, or; plural also 'facies') is a body of rock with specified characteristics, which can be any observable attribute of rocks such as their overall appearance, composition, or condition of formation, and the changes that may occur in those attributes over a geographic area.
Feldspars (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8) are a group of rock-forming tectosilicate minerals that make up about 41% of the Earth's continental crust by weight.
Gabbro refers to a large group of dark, often phaneritic (coarse-grained), mafic intrusive igneous rocks chemically equivalent to basalt, being its coarse-grained analogue.
Granite is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture.
Granoblastic is an adjective describing an anhedral phaneritic equi-granular metamorphic rock texture.
Granodiorite is a phaneritic-textured intrusive igneous rock similar to granite, but containing more plagioclase feldspar than orthoclase feldspar.
Granulites are a class of high-grade metamorphic rocks of the granulite facies that have experienced high-temperature and moderate-pressure metamorphism.
Green ubatuba (Port. verde ubatuba) is the commercial name of a Brazilian charnockite, although it is often sold as a granite.
Hypersthene is a common rock-forming inosilicate mineral belonging to the group of orthorhombic pyroxenes.
India (IAST), also called the Republic of India (IAST), is a country in South Asia.
Job Charnock (–1692/1693) was an employee and administrator of the English East India Company, and traditionally regarded as the founder of the city of Kolkata.
Kanyakumari is a City in Kanyakumari district in the state of Tamil Nadu, India.
Khondalite is a foliated metamorphic rock.
Limestone is a sedimentary rock, composed mainly of skeletal fragments of marine organisms such as coral, forams and molluscs.
Madagascar (Madagasikara), officially the Republic of Madagascar (Repoblikan'i Madagasikara; République de Madagascar), and previously known as the Malagasy Republic, is an island country in the Indian Ocean, off the coast of East Africa.
Magma (from Ancient Greek μάγμα (mágma) meaning "thick unguent") is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth, and is expected to exist on other terrestrial planets and some natural satellites.
Mangerite is a plutonic intrusive igneous rock, that is essentially a hypersthene-bearing monzonite.
Marble is a metamorphic rock composed of recrystallized carbonate minerals, most commonly calcite or dolomite.
Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means "change in form".
Microcline (KAlSi3O8) is an important igneous rock-forming tectosilicate mineral.
Monzogranites are biotite granite rocks that are considered to be the final fractionation product of magma.
Monzonite is an igneous intrusive rock.
The Nilgiri Mountains (Tamil: நீலகிரி;Neelagiri, literally blue hills) form part of the Western Ghats in western Tamil Nadu of Southern India.
Norite is a mafic intrusive igneous rock composed largely of the calcium-rich plagioclase labradorite, orthopyroxene, and olivine.
Norway (Norwegian: (Bokmål) or (Nynorsk); Norga), officially the Kingdom of Norway, is a unitary sovereign state whose territory comprises the western portion of the Scandinavian Peninsula plus the remote island of Jan Mayen and the archipelago of Svalbard.
The mineral olivine is a magnesium iron silicate with the formula (Mg2+, Fe2+)2SiO4.
Perthite is used to describe an intergrowth of two feldspars: a host grain of potassium-rich alkali feldspar (near K-feldspar, KAlSi3O8, in composition) includes exsolved lamellae or irregular intergrowths of sodic alkali feldspar (near albite, NaAlSi3O8, in composition).
In physics and materials science, plasticity describes the deformation of a (solid) material undergoing non-reversible changes of shape in response to applied forces.
Pleochroism (from Greek πλέων, pléōn, "more" and χρῶμα, khrôma, "color") is an optical phenomenon in which a substance has different colors when observed at different angles, especially with polarized light.
The Proterozoic is a geological eon representing the time just before the proliferation of complex life on Earth.
A protolith is the original, unmetamorphosed rock from which a given metamorphic rock is formed (proto-: first; lithos: rock; both Greek).
The pyroxenes (commonly abbreviated to Px) are a group of important rock-forming inosilicate minerals found in many igneous and metamorphic rocks.
Quartz is a mineral composed of silicon and oxygen atoms in a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2.
Rogaland is a county in Western Norway, bordering Hordaland, Telemark, Aust-Agder, and Vest-Agder counties.
The scapolites (Gr. σκάπος, rod, and λίθος, stone) are a group of rock-forming silicate minerals composed of aluminium, calcium, and sodium silicate with chlorine, carbonate and sulfate.
Sedimentary rocks are types of rock that are formed by the deposition and subsequent cementation of that material at the Earth's surface and within bodies of water.
The Servarayan hills, with the anglicised name Shevaroy Hills, are a towering mountain range (1620 m) near the city of Salem, in Tamil Nadu state, southern India.
Sri Lanka (Sinhala: ශ්රී ලංකා; Tamil: இலங்கை Ilaṅkai), officially the Democratic Socialist Republic of Sri Lanka, is an island country in South Asia, located in the Indian Ocean to the southwest of the Bay of Bengal and to the southeast of the Arabian Sea.
Sir Thomas Henry Holland KCSI KCIE FRS FRSE LLD (22 November 1868 – 15 May 1947) was a British geologist who worked in India with the Geological Survey of India, serving as its director from 1903 to 1910.
Tonalite is an igneous, plutonic (intrusive) rock, of felsic composition, with phaneritic texture.
Western Ghats also known as Sahyadri (Benevolent Mountains) is a mountain range that runs parallel to the western coast of the Indian peninsula, located entirely in India.