Results 21 to 30 of about 18,330 (214)
Geochronology of the Phanerozoic granitoids in northeastern China
, 2011 Northeast (NE) China is characterized by immense volumes of granitic rocks, exposed over an area of ∼200,000 km 2 . Although the precise geochronological framework was not clear, it was considered that most of them were emplaced during the Paleozoic ...
Fu-Yuan Wu +6 more
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Archean granitoids of India: windows into early Earth tectonics – an introduction
Special Publications, 2020 Granitoids form the dominant component of Archean cratons. They are generated by partial melting of diverse crustal and mantle sources and subsequent differentiation of the primary magmas, and are formed through a variety of geodynamic processes ...
S. Dey, J. Moyen
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, 2006 This paper summarizes the new results on the petrogenesis of Mesozoic granitoids and volcanic rocks in South China. The authors propose that these rocks were formed in time and space as a response to regional tectonic regime change from the continent ...
Xinmin Zhou +4 more
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Earth and Space Science, 2023 Although advanced spaceborne thermal emission and reflection radiometer multispectral analysis for lithological mapping has been widely applied, traditional methods such as band ratios (BR) and principal component analysis (PCA) are still hampered by ...
Yarong Zhou +3 more
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Frontiers in Earth Science, 2023 The stability of tunnel site depends upon the deformation behaviors of the surrounding rocks, including joint density, mineral composition, micro cracks, and grain boundaries.
Musa Khan +6 more
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Petrography, geochemistry and tectonic setting of Hanar granitoids (south of Birjand): a signature for magmatism identification of east of Lut block [PDF]
پترولوژی, 2018 The Hanar granitoids, geographically located 155 km south of Birjand in the east of Iran. Geologically, It belongs to the Lut block volcanic–plutonic belt and occurs near to the Lut block-Sistan suture zone border. The granitoid rocks consist of tonalite,
Siavash Omidianfar +2 more
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An oceanic subduction origin for Archaean granitoids revealed by silicon isotopes
Nature Geoscience, 2019 Modern oceanic crust is constantly produced at oceanic ridges and recycled back into the mantle at subduction zones via plate tectonics. An outstanding question in geology is whether the Earth started in a non-plate tectonic regime, and if it did, when ...
Z. Deng +5 more
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, 2020 Continental collision zones have been proposed as primary sites of net continental crustal growth. Therefore, studies on syn-collisional granitoids with mafic magmatic enclaves (MMEs) are essential for testing this hypothesis.
Yuanyuan Xiao +13 more
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, 2007 This geochemical compilation includes analyses of both granitoid and sedimentary rocks that were compiled from the thesis of Johns (2002) plus a published paper of Thériault et al. (2001) and archived unpublished GSC digital files of R.J. Thériault. Details of geochemical methods for those samples are contained in the data sources.
J B Whalen, N Wodicka
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Геодинамика и тектонофизика, 2021 The article presents new data on ages (U-Pb zircon dating, SIMS SHRIMP-II) and chemical compositions of rocks from gabbro-granitic and granite-leucogranitic magmatic associations.
L. G. Kuznetsova +3 more
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