Results 21 to 30 of about 2,212 (216)

Middle Triassic diorites from the Loei Fold Belt, NE Thailand: Petrogenesis and tectonic implications in the context of Paleotethyan subduction

, 2021
Two Early-Middle Triassic magmatic arc belts occur in the Indochina Block within Thailand, namely the Lampang Volcanic Belt and the Loei-Phetchabun Volcanic Belt, which are about 150 km apart and run parallel to each other.
Zhao, Kui-Dong, Jiang, Shao-Yong, Jiang, Hai, Li, Wen-Qian, Zhang, Di, Hai Jiang, Wen-Qian Li, Shao-Yong Jiang, Kui-Dong Zhao, Di Zhang   +9 more
core   +1 more source

First report of geo- and thermochronological results from the Cordillera Central, Luzon, Philippines

Earth, Planets and Space, 2023
Geo- and thermochronological methods were applied to diorites from the Cordillera Central, Luzon, Philippines to understand their emplacement and exhumation history in the island arc mountains. Five zircon U–Pb ages range from 32.54 ± 0.70 to 6.11 ± 0.15
Toru Nakajima, Shigeru Sueoka, Mitsuhiro Nagata, Barry P. Kohn, Noelynna T. Ramos, Hiroyuki Tsutsumi, Takahiro Tagami   +6 more
doaj   +1 more source

Oxygen Isotope Ratios of Submarine Diorites and their Constituent Minerals

, 1971
The δ18O values of submarine diorites recovered from the Mid-Atlantic Ridge near 45° N range from 5.2 to 6.9 ‰. Coexisting minerals are not in isotopic equilibrium.
K. Muehlenbachs, R. N. Clayton
core   +1 more source

Amphibole and whole-rock geochemistry of early Late Jurassic diorites, Central Tibet: Implications for petrogenesis and geodynamic processes

, 2020
Arc magmas are generated by complex geological processes in subduction settings. Due to the complexity of source materials and geological processes, the genesis of arc magmatic rocks can be difficult to disentangle.
Yang, Zong-Yong, Tang, Gong-Jian, Ma, Lin, Hu, Wan-Long, Wang, Qiang, Sun, Peng, Qi, Yue, Yang, Jin-Hui   +7 more
core   +1 more source

Geochronological, Geochemical and Sr-Nd-Pb-Hf Isotopic Constraints on the Petrogenesis of Pyroxene Diorites in the Sanchahe Iron-Gold Deposit, Western Shandong

, 2022
The Sanchahe iron-gold deposit in western Shandong province is located in the southeast of the North China Craton. The skarn type of iron-gold deposit (without copper) is located in the contact belt between pyroxene diorites and Ordovician limestone ...
Yankui Liu, Yadong Li, Jian Li, Jilei Gao, Siyuan Li, Chao Zhang, Ming Ma, Mingbo Gao, Qiwei Feng, Cui Tao   +9 more
core   +1 more source

Triassic High-Mg Diorites and Granitoids in the NE Pamir Reveal Tectonic Evolution of the Paleo-Tethys Ocean [PDF]

Lithosphere
The Western Kunlun-Pamir Orogen (WKPO) in the northwestern Tibetan Plateau holds crucial information on the Tethyan evolution. Until now, the subduction polarity and the assemblage processes of the Northern, Central, and Southern Pamir during the Paleo ...
Xiao-Qiang Liu, Chuan-Lin Zhang, Masumeh Sargazi, Hua-Dong Ma, Aerken Xiaili, Xu-Kun Qian, Zhi-Hao Song   +6 more
doaj   +1 more source

Anatexis of junvenile mafic to intermadiate crust - constraints from major and trace element and SR, ND, PB isotopes of diorites to granites (Damara Orogen, Namibia)

, 2014
The Tsomtsaub pluton (central Damara orogen, Namibia) consists of quartz diorites, granodiorites and granites. Intrusion ages of the undeformed and unmetamorphosed quartz diorites and granites are constrained by LA-ICP-MS U-Pb zircon analyses, which ...
Hauff, Folkmar, Stracke, A., Jung, S., Berndt, J., Kastek, N.   +4 more
core   +1 more source

Groundwater in the Perthus Tunnel: feedback after excavation

Acque Sotterranee, 2021
This work presents the experiences gained during the construction of the Perthus high-speed railway tunnel (8.4 km long), as regards water inflow management, analysis of the impact on surface-waters and groundwater, monitoring of piezometers and water ...
Antonio Dematteis, Riccardo Torri, Bertrand Chereau, Michel Ducrot   +3 more
doaj   +1 more source

Composition of hornblendites, diorites, and TTGs in Eastern Hebei provence

, 2019
Table S1-S5 list SIMS zircon U-Pb and in-situ Hf isotopic, whole-rock major and trace element and mineral major and trace element data for the hornblendites, diorites and TTGs around Xuanmenzi-Gualanyu area, Eastern Hebei province, North China ...
Liou, P (via Mendeley Data), Liou, Peng
core   +1 more source

Petrochemistry of late Aphebian (~ 1.8 Ga) calc-alkaline diorites from the East Arm of Great Slave Lake, N.W.T., Canada

, 1981
The East Arm of Great Slave Lake is a 2.5–1.7 Ga graben connected to the contemporaneous Wopmay Orogen on the margins of the Archean (2.5 Ga) Slave craton. It contains three major groups of sedimentary and volcanic rocks. The two earlier ones are cut by
J. P. N. Badham
core   +1 more source