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, 2019 Daerah penelitian berada di Desa Hahangan dan sekitarnya, Kecamatan Aralle, Kabupaten Mamasa, Provinsi Sulawesi Barat. Secara regional daerah tersebut tersusun oleh Batuan Terobosan Neogen (Granitoid Mamasa) yang pembentukannya berkaitan erat dengan ...
Idrus, Arifudin +4 more
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The geology and geochemistry of granitoid at Kg. Ulu Geh, Kuala Krai, Kelantan
, 2018 Geological research including lithology, geological structure, stratigraphy, geomorphology and petrology in Kg. Ulu Geh, Kuala Krai, Kelantan. The study area has longitude of 102° 13" 35°’ to 102° l6“20” and the latitude of 05° 38" 45” to 05° 41" 30 ...
Sahliziyan Ramli,
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Water-in-zircon: a discriminant between S- and I-type granitoid
Contributions to Mineralogy and Petrology, 2023 Granitic rocks are crucial in revealing continental crust formation and evolution. The classic S- and I-type granitoid classification (based upon metasedimentary vs.
Jing Mo +9 more
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Contrasting deformation of S- and I-type granitoids in the Lachlan Fold Belt, eastern Australia
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1988Abstract Several examples of contrasting deformation under greenschist facies conditions of closely associated, Silurian-Devonian S-type (peraluminous) and I-type (mainly metaluminous) granitoid plutons of very similar age occur in the Lachlan Fold Belt of eastern New South Wales, Australia.
R.H. Vernon, R.H. Flood
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Origin of high-potassium, talc-alkaline, I-type granitoids
Geology, 1993Many I-type granitoid magmas are generated through partial melting of older metaigneous rocks, and the compositions of such melts are broadly calc-alkaline and metaluminous. These melts are granitic to tonalitic, and result from thermal extremes in their lower crustal source regions.
Malcolm P. Roberts, John D. Clemens
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Swedish granitoids of S- and I-type and their lithophile element distribution
Geologiska Föreningen i Stockholm Förhandlingar, 1987Abstract Three groups of Swedish granitoids, early, late and postorogenic, have been studied with respect to how S- or I-type granite models might be useful in the classification of these rocks. An attempt has also been made to determine which relationships, reflected in the distribution of lithophile ore elements, best characterize S- and I-types. The
Gösta Armands, Athanassios Xefteris
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Petrogenesis of I-type granitoids from the Melrose Stock, east-central Nevada
International Geology Review, 2010The Melrose Stock in the Dolly Varden Mountains of east-central Nevada is one of the many Mesozoic intrusion s in the Basin and Range Province. It consists of monzonites, quartz monzonites, granodiorites, and granites sharply intruding Mississippian to Triassic units.
A.K. El-Shazly +2 more
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Lithos, 2013
Abstract SIMS zircon U–Pb dating of I-type granitoids from four Variscan crystalline basement outcrops in the Western Carpathians (Tribec, Nizke Tatry, Cierna Hora and Slovenske Rudohorie Mts.) implies that they originated between 367 and 353 Ma. Therefore, they belong to the earliest Variscan I-type granitoids. The oldest Devonian age at ca. 367–364
Igor Broska +4 more
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Abstract SIMS zircon U–Pb dating of I-type granitoids from four Variscan crystalline basement outcrops in the Western Carpathians (Tribec, Nizke Tatry, Cierna Hora and Slovenske Rudohorie Mts.) implies that they originated between 367 and 353 Ma. Therefore, they belong to the earliest Variscan I-type granitoids. The oldest Devonian age at ca. 367–364
Igor Broska +4 more
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S- and I-type granitoids of North Victoria Land, Antarctica, and their inferred geotectonic setting
Geologische Rundschau, 1987In the context of Gondwana North Victoria Land forms the Antarctic conjugate terrain to the East Australian Lachlan Fold Belt, where the distinction between S- and I-type granitoids was first worked out (Chappell &White 1974). Thus the area was considered a good testing ground for the hypothesis when the German Antarctic North Victoria Land Expedition (
Ulrich Vetter, Franz Tessensohn
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