Results 1 to 10 of about 3,761 (187)

Leucogranite Records Multiple Collisional Orogenies

Geophysical Research Letters, 2022
The geological evolution of orogens is the sum of events related to both their cycle of generation as well as features inherited from their basement units.
Li Liu, Di‐Cheng Zhu, Qing Wang, Peter A. Cawood, Daniel F. Stockli, Lisa D. Stockli, Chao Lin, Jin‐Jiang Zhang, Liang‐Liang Zhang, Zhi‐Dan Zhao   +9 more
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Iron isotopic fractionation by magmatic-hydrothermal fluid-melt interaction in the Himalayan leucogranites [PDF]

Fundamental Research
Iron (Fe) isotopes have been used to trace magmatic evolution (e.g., mineral fractional crystallization, partial melting degree, and fluid exsolution), but the behavior of Fe isotopes in magmatic-hydrothermal processes remains poorly constrained. Here we
Yikang Quan, Xia Hu, Dingsheng Jiang, Zhaoqi Ren, Jiaru Sheng, Xiangyu Yan, Yan Jing, Zhikai Xu, Fang Huang   +8 more
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Controls on δ26Mg variability in three Central European headwater catchments characterized by contrasting bedrock chemistry and contrasting inputs of atmospheric pollutants. [PDF]

PLoS ONE, 2020
Magnesium isotope ratios (26Mg/24Mg) can provide insights into the origin of Mg pools and fluxes in catchments where Mg sources have distinct isotope compositions, and the direction and magnitude of Mg isotope fractionations are known.
Martin Novak, Juraj Farkas, Pavel Kram, Jakub Hruska, Marketa Stepanova, Frantisek Veselovsky, Jan Curik, Alexandre V Andronikov, Ondrej Sebek, Martin Simecek, Daniela Fottova, Leona Bohdalkova, Eva Prechova, Magdalena Koubova, Hyacinta Vitkova   +14 more
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Integrated optical and radar remote sensing for litho-structural mapping of the Kerdous and Ait Abdellah inliers, western Anti-Atlas, Morocco [PDF]

Scientific Reports
Although field investigations constitute the cornerstone of geological studies, yet its application is often constrained by limited accessibility, time consumption, and high costs particularly in complex or remote terrains.
Jaouad Aadaj, Abdelhalim Tabit, Ahmed Algouti, Ali Aydda, Said Moujane, Saloua Agli, Abdelouahed Farah, Maryam Errami, Ali Shebl   +8 more
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Bacterial community of cushion plant Thylacospermum ceaspitosum on elevational gradient in the Himalayan cold desert. [PDF]

Frontiers in Microbiology, 2015
Although bacterial assemblages are important components of soils in arid ecosystems, the knowledge about composition, life-strategies and environmental drivers is still fragmentary, especially in remote high-elevation mountains.
Klára eŘeháková, Klára eŘeháková, Alica eChronakova, Alica eChronakova, Vaclav eKristufek, Barbora eKuchtova, Katerina eCapkova, Katerina eCapkova, Josef eScharfen, Josef eScharfen, Petr eCapek, JIRI eDOLEZAL, JIRI eDOLEZAL   +12 more
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Infrared spectra study of the Moslavačka Gora (Croatia) tourmalines O-H stretching region: Inference of fluid involvement in the Late Cretaceous igneous evolution of a complex Adria-Europe convergence zone [PDF]

Geološki Anali Balkanskoga Poluostrva, 2023
Infrared spectra (IR) in the O-H stretching region were recorded for natural tourmalines from the magmatic and magmatic-hydrothermal systems of Moslavačka Gora (Croatia).
Balen Dražen, Petrinec Zorica
doaj   +1 more source

In-situ boron isotope and chemical composition of tourmaline in the Gyirong pegmatite, southern Tibet: Implications for petrogenesis and magma source

Frontiers in Earth Science, 2023
Leucogranitic rocks, mainly including leucogranite-pegmatite systems, have been found to be widely distributed in the South Tibetan Himalaya, and they have received considerable interest because of their significance in crustal evolution and associated ...
Qiuming Pei, Shaobing Ma, Chenghong Li, Fei Liu, Yunhui Zhang, Yong Xiao, Shiming Wang, Jianfei Wu, Huawen Cao   +8 more
doaj   +1 more source

The 1.79 Ga Särkilahti leucogranite – a horizontal magma layer below granulite-grade migmatites in SE Finland [PDF]

Bulletin of the Geological Society of Finland, 2019
The heterogeneous, peraluminous Särkilahti garnet-cordierite leucogranite occupies ~ 75 km2 area in Svecofennian granulite-grade terrain of SE Finland. Country rocks are metasedimentary garnet-cordierite-biotite migmatites with some orthopyroxenegarnet ...
Hannu Mäkitie, Hugh O´Brien, Olavi Selonen, Matti Kurhila   +3 more
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Relationships between sanukitoids and crust-derived melts and their implications for the diversity of Neoarchaean granitoids: A case study from Surmansuo and nearby areas, Eastern Finland [PDF]

Bulletin of the Geological Society of Finland, 2014
We present new isotopic data (U-Pb and Sm-Nd) from the Neoarchean granitoids of the Lentua complex, which is a part of the Western Karelia subprovince of the Fennoscandian Shield.
P. Mikkola, E. Heilimo, H. Huhma
doaj   +1 more source

Sr-Nd-Hf Isotopic Disequilibrium During the Partial Melting of Metasediments: Insight From Himalayan Leucosome

Frontiers in Earth Science, 2022
Radiogenic isotopes of granitoids are widely applied to fingerprint the source of granitoids and study the magma mingling and assimilation processes, aiming to decipher the planetary differentiation.
Lei Yang, Lei Yang, Lei Yang, Jia-Min Wang, Xiao-Chi Liu, Gautam P. Khanal, Gautam P. Khanal, Fu-Yuan Wu, Fu-Yuan Wu   +8 more
doaj   +1 more source