Results 111 to 120 of about 8,056 (240)

KIBARAN GRANITOID MAGMATISM IN THE REPUBLIC OF BURUNDI: GEOLOGY, COMPOSITIONAL FEATURES, TIME AND GEODYNAMIC CONDITIONS OF OCCURRENCE

Геодинамика и тектонофизика
The paper examines the specific granitoid magmatism of the northern sector of the Kibaran orogenic belt in the general context of geodynamic typification of granitoids.
V. M. Nenakhov, B. Barihuta, V. V. Ilin
doaj   +1 more source

Granitoid intrusion into the VGP News

Eos, Transactions American Geophysical Union, 1990
The VGP News is intended to stimulate fruitful thought in important areas of volcanism, petrology, and geochemistry. To achieve this aim, the February and May editions of VGP News are dedicated to a two‐part debate on the origin of anatectic granitoids.
openaire   +1 more source

Tectonic Settings and Petrogenesis of Pan-African S-Type Granitoids in Anka Schist Belt, NW, Nigeria

, 2020
Research into geotectonic settings of the Anka schist belt was regionally carried out by (Holt, 1982) stating that there is no evidence of significant partial melting or metasomatism. This research uses chemical data of some Pan-African granitoids within
Y. S, Agunleti,, T., Najime.
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Geochemistry of granitoids of the Lalezar area (Kerman, Iran) [PDF]

, 2014
The Lalezar granitoids crop out within the Urumiyeh-Dokhtar Volcanic Belt (U-DVB) which is the largest volcanic belt in Central Iran. These granitoids intrude Eocene volcano-sedimentary rocks and range from gabbrodiorites to granites, with dominance of ...
Silva, A., Niktabar, M., Moradian, A., Ahmadipour, H., Santos, J. F.   +4 more
core  

Tab. 2.4-2. Whole rock and trace element analysis of representative enclave rocks occuring within Muehlig-Hofmannfjella granitoids, Central Dronning Maud Land, East Antarctica

, 2007
Tab. 2.4-2. Whole rock and trace element analysis of representative enclave rocks occuring within Muehlig-Hofmannfjella granitoids, Central Dronning Maud Land, East ...
Prasad, A V Keshava, Rasik Ravindra (6965288), Mervin D'Souza (6965282), Ravindra, Rasik, A V Keshava Prasad (6965285), D'Souza, Mervin   +5 more
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The petrochemical characteristics of Hercynian granitoids in Tianshan and the geodynamic implications

, 2002
Four genetic types of granitoids, i.e. mantle-derived type (M-type), syntexis type (SY-type), trasformation type [T-type, including migmatic(MT), peraluminous (PT) and K-rich (KT) subtypes], and A-type were classified in the Hercynian granitoids in ...
Liu, Y-L, Zhang, Z-J, Chen, H-Y, Chen, Y-J, Bao, J-X   +4 more
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Recycling oceanic crust for continental crustal growth: Sr-Nd-Hf isotope evidence from granitoids in the western Junggar region, NW China

, 2012
The juvenile component of accretionary orogenic belts has been declining since the Archean. As a result, there is often controversy regarding the contribution of oceanic basalts to Phanerozoic crustal growth, as in the case of the Central Asian Orogenic ...
Yi-Gang Xu, Wang, Q., Wyman, Derek, A., Zhao, Zhen-Hua, Tang, Gong-Jian, Wyman, D., Xu, Y., Wang, Qiang, Zheng-Xiang Li, Zhao, Z., Li, Zheng-Xiang, Zhen-Hua Zhao, Derek A. Wyman, Xu, Yi-Gang, Tang, G., Gong-Jian Tang, Qiang Wang   +16 more
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THE AGE OF EARLY COLLISIONAL GRANITOIDS OF WESTERN SANGILEN (SE TUVA): IMPLICATIONS FOR ESTIMATING THE DURATION OF OROGENY AT THE MARGIN OF THE TUVA-MONGOLIAN MASSIF

Геодинамика и тектонофизика
The first U-Pb isotope-geochronological data were obtained on the age of early collisional granitoids of the Matut massif (Western Sangilen, SE Tuva).
D. V. Semenova, V. G. Vladimirov, I. V. Karmysheva, V. A. Yakovlev   +3 more
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STRUCTURAL EVOLUTION OF THE CHEKA PLUTON (SOUTHERN URALS): PETROMAGNETIC STUDIES AND FRACTURE ANALYSIS

Геодинамика и тектонофизика
The Cheka pluton, located in the Magnitogorsk megazone of the Southern Urals and composed of the alkaline granitoids, is meridionally elongated (1–2)×6.5 km. The fracture and anisotropy of magnetic susceptibility analysis was made on the Cheka pluton for
P. A. Shestakov, A. Yu. Kazansky, A. V. Tevelev, N. V. Pravikova, E. V. Koptev, E. A. Volodina, A. A. Borisenko, I. A. Kosheleva   +7 more
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From migmatites to granitoids

Melting processes in the continental crust are responsible for crust formation and recycling, and play an important role in heat transport. A better understanding of these processes can shed light on crustal differentiation and continental growth throughout the Earth’s history. This thesis focuses on three major key aspects of the link between the melt
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