Results 141 to 150 of about 452 (179)
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Journal of African Earth Sciences, 1996
Abstract Younger granites (post tectonic) are common throughout the Precambrian igneous/metamorphic terrain of Egypt and they played a significant role in the evolution of the Pan-African crust. The Gabal Igla Ahmar pluton comprises two magmatic suites: a calc-alkaline diorite/quartz diorite-granodiorite suite and an aluminous monzogranite-granophyre
Mohamed A. Hassanen +2 more
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Abstract Younger granites (post tectonic) are common throughout the Precambrian igneous/metamorphic terrain of Egypt and they played a significant role in the evolution of the Pan-African crust. The Gabal Igla Ahmar pluton comprises two magmatic suites: a calc-alkaline diorite/quartz diorite-granodiorite suite and an aluminous monzogranite-granophyre
Mohamed A. Hassanen +2 more
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Gondwana Research, 2020
Abstract The mechanism for generation of Silurian-Devonian hornblende-bearing I-type granitoids in the Chinese Altai still remains rather obscure. The possibility that they are derived from the regional anatexis of the Ordovician accretionary wedge, i.e., the Habahe Group, is investigated.
Yanqiong Huang +7 more
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Abstract The mechanism for generation of Silurian-Devonian hornblende-bearing I-type granitoids in the Chinese Altai still remains rather obscure. The possibility that they are derived from the regional anatexis of the Ordovician accretionary wedge, i.e., the Habahe Group, is investigated.
Yanqiong Huang +7 more
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Lithos, 2014
Abstract The Early Paleozoic intracontinental orogenic belt in the South China Block (SCB) is composed of massive granitoids and high-grade metamorphic rocks. Compared to the widespread distributions of early Paleozoic S-type granites in the eastern SCB, coeval I-type granitoids are rare and consequently receive much less attention.
Yili Guan +6 more
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Abstract The Early Paleozoic intracontinental orogenic belt in the South China Block (SCB) is composed of massive granitoids and high-grade metamorphic rocks. Compared to the widespread distributions of early Paleozoic S-type granites in the eastern SCB, coeval I-type granitoids are rare and consequently receive much less attention.
Yili Guan +6 more
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Neues Jahrbuch für Mineralogie. Abhandlungen, 1996
Two genetically different groups of Hercynian granitoids occur in the Slavonian Mountains which are included in the southern Pannonian Basin. I-type granitoids occur in Barrovian-type progressive metamorphic sequences which originated during the Hercynian orogeny from the Late Silurian to Lower Carboniferous magmatic-sedimentary complex.
Pamić, Jakob, Belak, Mirko
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Two genetically different groups of Hercynian granitoids occur in the Slavonian Mountains which are included in the southern Pannonian Basin. I-type granitoids occur in Barrovian-type progressive metamorphic sequences which originated during the Hercynian orogeny from the Late Silurian to Lower Carboniferous magmatic-sedimentary complex.
Pamić, Jakob, Belak, Mirko
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Neues Jahrbuch für Mineralogie - Abhandlungen, 2007
The leucocratic granitoids of NW Iran including S-type, A-type and I-type leucogranites, are located in the SanandajSirjan Metamorphic Belt (SSMB) and Alborz-Azarbaijan Zone (AAZ). I-type leucogranites have been reported from the BukanMahabad, Meshgin-Shahr and Saqqez areas. The Tamuteh leucogranites (SW Saqqez) are located in the SSMB and are composed
Seyed Fakhraddin Athari +2 more
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The leucocratic granitoids of NW Iran including S-type, A-type and I-type leucogranites, are located in the SanandajSirjan Metamorphic Belt (SSMB) and Alborz-Azarbaijan Zone (AAZ). I-type leucogranites have been reported from the BukanMahabad, Meshgin-Shahr and Saqqez areas. The Tamuteh leucogranites (SW Saqqez) are located in the SSMB and are composed
Seyed Fakhraddin Athari +2 more
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International Journal of Earth Sciences, 2007
The Upper Cretaceous Torul pluton, located in the Eastern Pontides, is of sub-alkaline affinity and displays features typical of volcanic arc granitoids. It is a composite pluton consisting of granodiorite, biotite hornblende monzogranite, quartz monzodiorite, quartz monzonite and hornblende biotite monzogranite. The oldest syenogranite (77.9 ± 0.3 Ma)
Abdullah Kaygusuz +3 more
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The Upper Cretaceous Torul pluton, located in the Eastern Pontides, is of sub-alkaline affinity and displays features typical of volcanic arc granitoids. It is a composite pluton consisting of granodiorite, biotite hornblende monzogranite, quartz monzodiorite, quartz monzonite and hornblende biotite monzogranite. The oldest syenogranite (77.9 ± 0.3 Ma)
Abdullah Kaygusuz +3 more
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Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 2004
ABSTRACTThe high-dT/dP-type Hidaka Metamorphic Belt in Hokkaido, northern Japan, represents a tilted crustal section of a magmatic arc of Tertiary age. The highest metamorphic grades reached are granulite facies, and the syn-metamorphic granitic rocks are widely distributed in this metamorphic terrane.
Toshiaki Shimura +4 more
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ABSTRACTThe high-dT/dP-type Hidaka Metamorphic Belt in Hokkaido, northern Japan, represents a tilted crustal section of a magmatic arc of Tertiary age. The highest metamorphic grades reached are granulite facies, and the syn-metamorphic granitic rocks are widely distributed in this metamorphic terrane.
Toshiaki Shimura +4 more
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Neues Jahrbuch für Mineralogie - Abhandlungen, 2008
This study examines the geochemistry of the metaluminous Eocene–Oligocene I-type calc-alkaline Qorveh Granitoid Complex (QGC), western Iran. The complex was emplaced in a Sanandaj-Sirjan Zone (SSZ) convergent setting which resulted from subduction of Neo-Tethyian oceanic crust below Central Iran.
Ashraf Torkian +3 more
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This study examines the geochemistry of the metaluminous Eocene–Oligocene I-type calc-alkaline Qorveh Granitoid Complex (QGC), western Iran. The complex was emplaced in a Sanandaj-Sirjan Zone (SSZ) convergent setting which resulted from subduction of Neo-Tethyian oceanic crust below Central Iran.
Ashraf Torkian +3 more
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Island Arc, 2008
Abstract Triassic granitoids related to Palaeo‐ and Neo‐Tethyan events occur widely in the metamorphic terranes largely affected by the Alpine orogeny. A first recorded unmetamorphosed plutonic body intruded into the Palaeotethyan mélange in western Turkey, called the Karaburun granodiorite, is composed of two small intrusive stocks that were emplaced
SÜMER, ÖKMEN +5 more
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Abstract Triassic granitoids related to Palaeo‐ and Neo‐Tethyan events occur widely in the metamorphic terranes largely affected by the Alpine orogeny. A first recorded unmetamorphosed plutonic body intruded into the Palaeotethyan mélange in western Turkey, called the Karaburun granodiorite, is composed of two small intrusive stocks that were emplaced
SÜMER, ÖKMEN +5 more
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Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen, 2014
The granitoids of Dehnow in NE Iran are part of a calc-alkaline plutonic series (diorite-to- nalite-granodiorite) that intruded the remnants of the Paleo-Tethys oceanic crust during the Triassic. New major and trace element data together with isotopic compositions elucidate their I-type nature and a deep magma origin.
Ramin Samadi +5 more
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The granitoids of Dehnow in NE Iran are part of a calc-alkaline plutonic series (diorite-to- nalite-granodiorite) that intruded the remnants of the Paleo-Tethys oceanic crust during the Triassic. New major and trace element data together with isotopic compositions elucidate their I-type nature and a deep magma origin.
Ramin Samadi +5 more
openaire +1 more source