Results 121 to 130 of about 1,303 (162)
Some of the next articles are maybe not open access.
The Granitoid Series and Mineralization
1981Abstract Granitoids can be classified into either a magnetite-bearing magnetite series or a magnetite-free ilmenite series, a classification also applicable to their effusive equivalents. Magnetite series granitoids are associated with major sulfide mineralization, whereas ilmenite series granitoids are related to cassiterite and ...
openaire +1 more source
Dike transport of granitoid magmas
Geology, 1993Thermal and fluid-dynamical analyses suggest that for viscosities and density contrasts spanning the range considered typical for many calc-alkalic granitoids, dike ascent is a viable mechanism for the transport of large volumes of granitoid melt through the continental crust.
Nick Petford +2 more
openaire +1 more source
Granitoids and magmatic series: the contextualized study of granitoids.
2016The relationship that many granitic rocks show with less differentiated mantle-derived magmas has been underestimated in the last decades and, that has led to the loss of a powerful scientific tool for the investigation of ancient geotectonic settings and, even for the evolution of the mantle-crust system.
openaire +1 more source
Precambrian Research, 1991
Abstract Structural relationships are described along parts of the eastern margin of the 1.76-1.84 Ga old batholith, known as the Transscandinavian Igneous Belt (TIB). They demonstrate that the Svecofennian structures of the country rocks are highly dependent on the shape of the younger granitoids which themselves have margins folded in the same ...
openaire +1 more source
Abstract Structural relationships are described along parts of the eastern margin of the 1.76-1.84 Ga old batholith, known as the Transscandinavian Igneous Belt (TIB). They demonstrate that the Svecofennian structures of the country rocks are highly dependent on the shape of the younger granitoids which themselves have margins folded in the same ...
openaire +1 more source
Granitoids of Sumatra and the Tin Islands
1988The granitoid study by the Geological Research and Development Centre (GRDC) started in 1980. The investigation began in the Lampung area of the southernmost part of Sumatra and gradually moved northward to the Bengkulu, Jambi, and Tapanuli areas. In 1983 the investigation was carried out in collaboration with Dr. E.J. Cobbing and Dr. D.I.J.
null Wikarno +2 more
openaire +1 more source
Petrogenesis of the Tasmanian granitoids
1977This study of Tasman Orogenic Zone granitoid rocks in Tasmania is mainly concerned with the petrogenesis of a suited of garnet and cordierite-bearing, aluminous granites. These granites and the associated hornblende-biotite granodiorites are contact aureole plutons of Devonian age, emplaced in paratectonically deformed Palaeozoic rocks.
openaire +1 more source
The Geological–Structural Types of Granitoids
Canadian Journal of Earth Sciences, 1974The existence of five natural geological structural types of granitoids is argued: (1) early orogenic (early folding or intrageanticlinal); (2) late orogenic, including granitoids of block-mountain areas; (3) tele-early orogenic; (4) tele-late orogenic; and (5) cratogenic.The early orogenic granitoids are formed during an early stage of folding (early
openaire +1 more source
Exoplanets, Granitoids and Evolutionary Potential
2018As we have seen, granite is ubiquitous on terrestrial bodies in the solar system. Its volume relates to two factors: the persistence of volcanism and the presence of water. The more water there is available in the mantle, the greater the occurrence of partial melting; the longer the lower crust remains hot, the more likely it will be that bodies of ...
openaire +1 more source
Geology and petrology of BeypazarıOymaağaç granitoids
2020öz BEYPAZARI-OYMAAĞAÇ GRANİTOYİDLERİNİN JEOLOJİSİ VE PETROLOJİSİ İPEKCİL, Ceren Yüksek Lisans, Jeoloji Mühendisliği Bölümü Tez Yöneticisi: Doç.Dr. A. Taylan Lünel Ocak 2005, 94 sayfa Bu çalışmanın amacı, Beypazarı-Oymaağaç granitoyidlerinin kökenini, kaynak özelliklerini, petrojenezini ve yerleşme mekanizmalarını araştırmaktır.
openaire +1 more source