Results 31 to 40 of about 5,793 (215)

Electron backscatter analyses of omphacite to constrain eclogite exhumation in the Blue Ridge of western North Carolina [PDF]

, 2006
The Lick Ridge eclogite is mapped as large bodies surrounded by accretionary wedge sediments in the Eastern Blue Ridge. The exhumation process of the Lick Ridge eclogite cannot be determined by analogy to other eclogite localities.
Syvertsen, Kara Anne
core   +1 more source

Evidence for a dominantly reducing Archaean ambient mantle from two redox proxies, and low oxygen fugacity of deeply subducted oceanic crust

Scientific Reports, 2019
Oxygen fugacity (ƒO2) is an intensive variable implicated in a range of processes that have shaped the Earth system, but there is controversy on the timing and rate of oxidation of the uppermost convecting mantle to its present ƒO2 around the fayalite ...
Sonja Aulbach, Alan B. Woodland, Richard A. Stern, Prokopiy Vasilyev, Larry M. Heaman, K. S. Viljoen   +5 more
doaj   +1 more source

Eclogite Induced Lithospheric Drips: Implications for the Removal of the Lithosphere at Magmatic Arcs and Orogens [PDF]

Dripping of lower crustal eclogites has been proposed to explain various geological, geophysical, and petrological observations. While eclogite dripping can trigger mantle lithosphere removal, the factors controlling its style and magnitude remain ...
Ballı, A., Göğüş, O. H., Uluocak, E. Şengül, van Hunen, J., Hunen, J., Şengül Uluocak, Ebru, Balli, A., Uluocak, E. Senguel, Göğüş, Oğuz Hakan   +8 more
core   +1 more source

Detrimental effects of slimes on the flotation of rutile from eclogite ore

Results in Physics, 2018
The detrimental effects of slimes on the flotation of rutile from eclogite ore have been studied in this work in order to improve the separation efficiency of the flotation.
Qian Chen, Bo Xu, Yangge Zhu, Hongqiang Li, Peng Chen, Yunliang Zhao, Hongchao Li, Shaoxian Song   +7 more
doaj   +1 more source

REPLY TO COMMENTS FROM S.G. SKUBLOV, A.V. BEREZIN, AND L.I. SALIMGARAEVA ON THE ARTICLE AUTHORED BY M.V. MINTS AND K.A. DOKUKINA – THE BELOMORIAN ECLOGITE PROVINCE (EASTERN FENNOSCANDIAN SHIELD, RUSSIA): MESO-NEOARCHEAN OR LATE PALEOPROTEROZOIC?

Геодинамика и тектонофизика, 2021
In their research, the authors of the comments have focused on the Late Paleoproterozoic rims of zircons, but ignored many important details of their own data. Their comments are based on a misconception that eclogite zircons have unique geochemical (REE,
M. V. Mints, K. A. Dokukina
doaj   +1 more source

Apatite in Carbonatite Preserving Primary Magmatic, Post‐Magmatic Overgrowth, and Post India‐Asia Collision‐Related Hydrothermal Alteration: Evidenced From U–Pb Isotope and Trace Element Geochemistry

Geological Journal, EarlyView.
U–Pb isotope and trace element geochemistry of apatite from carbonatites of Peshawar Plain Alkaline Igneous Province, western Himalaya shows Permo‐Carboniferous magmatism, an additional magmatic pulse during Cretaceous, and post‐magmatic hydrothermal/metasomatism during Oligocene. ABSTRACT U–Pb isotope and trace element geochemistry of apatite combined
Mehboob ur Rashid, Hafiz U. Rehman, Hao‐Yang Lee, Sun‐Lin Chung, Kaushik Das, Kazumasa Aoki, Muhammad Jawad Zeb, Nasir Ahmad, Muhammad Hussain, Hiroshi Yamamoto   +9 more
wiley   +1 more source

MANTLE TERRANES OF THE SIBERIAN CRATON: THEIR INTERACTION WITH PLUME MELTS BASED ON THERMOBAROMETRY AND GEOCHEMISTRY OF MANTLE XENOCRYSTS

Геодинамика и тектонофизика, 2019
We have studied variations in the structure and composition of minerals from the pipes of the Yakutian kimberlite province (YKP) in different mantle terranes of the Siberian craton.
I. V. Ashchepkov, A. S. Ivanov, S. I. Kostrovitsky, M. A. Vavilov, S. A. Babushkina, N. V. Vladykin, N. S. Tychkov, N. S. Medvedev   +7 more
doaj   +1 more source

Microplate Tectonics Through Earth History and Across Solid Multispheres

Geological Society of China Bulletin, EarlyView.
The evolution of tectonic microplates throughout Earth´s history as well as the transitions between microplates across different solid spheres offers a novel approach to expanding the traditional plate tectonics theory. ABSTRACT The evolution of tectonic microplates throughout Earth's history as well as the transitions between microplates across ...
Sanzhong Li, Yanhui Suo, Jie Zhou, Guozheng Sun, Jianping Zhou, Xianzhi Cao, Bo Liu, Lingli Guo, Zhaoxia Jiang, Qianqian Li, Shujuan Zhao, Long Chen, Xi Wang, Jun Hu, Xiaohui Li, Xiyao Li, Wenyong Duan, Lin Liu, Jie Liu, Guangzeng Wang, Pengcheng Wang, Qingbin Guan, Dingshan Deng, Xu Han, Liangliang Wang, Zihao Hu, Qiuling Liu, Heda Wang, Zihan Tian, Hans‐Peter Schertl   +29 more
wiley   +1 more source

Newly discovered Late Triassic Baqing eclogite in central Tibet indicates an anticlockwise West–East Qiangtang collision

, 2018
The Triassic eclogite-bearing central Qiangtang metamorphic belt (CQMB) in the northern Tibetan Plateau has been debated whether it is a metamorphic core complex underthrust from the Jinsha Paleo-Tethys or an in-situ Shuanghu suture.
Xiao-Yao Zhou, Xin Jin, Kai-Jun Zhang, Yu-Xiu Zhang, Wei-Dong Sun, Li-Long Yan, Jian-Ming Liu   +6 more
core   +1 more source

Metamorphic or Igneous Zircon? Classification Through Rare Earth Elements, Machine Learning and Logistic Regression

Journal of Metamorphic Geology, EarlyView.
ABSTRACT Zircon is a common, highly refractory accessory mineral found in sedimentary, igneous and metamorphic rocks that forms through various processes (e.g., magmatic, hydrothermal, metamorphic growth and recrystallization). Trace element compositions of detrital zircon have been widely applied to understanding tectonic processes and continental ...
Jarrod M. Burges, Chris Yakymchuk, Michael P. DiMaio, Timothy C. C. Lui, Anirudh Prabhu, Shaunna M. Morrison   +5 more
wiley   +1 more source