Results 11 to 20 of about 2,637,113 (187)

Developing New Amphibole Thermobarometers to Constrain High P‐T Hydration Processes of Basic‐Ultrabasic Rocks

Geochemistry, Geophysics, Geosystems
Amphibole compositions record high‐pressure‐temperature (P‐T) hydration processes during magmatism and metamorphism in the deep Earth. However, amphibole thermobarometers calibrated for basic–ultrabasic systems are scarce.
Wenbo Xu, Weilin Chen, Shubham Choudhary, Shijie Li, Jintao Zhu, Xiaogang Ma, Jiamin Wang, Shujuan Jiao, Guibin Zhang, Lifei Zhang, Renbiao Tao   +10 more
doaj   +2 more sources

Petrology of UHP eclogite-facies felsic schist in the Western Tianshan subduction zone, China

Frontiers in Earth Science, 2023
Although quartzo-feldspathic metasedimentary rocks are widespread in high pressure-ultrahigh pressure (HP-UHP) metamorphic belts worldwide, their petrogenesis and metamorphic evolution is poorly understood.
Lijuan Zhang, Lifei Zhang, Ning Qi, Thomas Bader   +3 more
doaj   +1 more source

Some thoughts about eclogites and related rocks [PDF]

European Journal of Mineralogy, 2023
The past 40 years have been a golden age for eclogite studies, supported by an ever wider range of instrumentation and enhanced computational capabilities, linked with ongoing developments in thermobarometry and geochronology.
M. Brown
doaj   +1 more source

Rapid heating (<2 Ma) to ultrahigh-temperature metamorphism via asthenospheric upwelling. [PDF]

Sci Adv
Ultrahigh-temperature (UHT) metamorphism is the most thermally extreme form of regional crustal metamorphism, with temperatures exceeding 900°C. The duration and heat source of UHT metamorphism are critical constraints on the tectonic evolution of ...
Zhang G, Wu C, Wang Y, Zhang L, Webb AAG.   +4 more
europepmc   +2 more sources

Petrology and metamorphism of glaucophane eclogites in Changning-Menglian suture zone, Bangbing area, southeast Tibetan Plateau: An evidence for Paleo-Tethyan subduction

China Geology, 2021
: High/ultrahigh-pressure (HP/UHP) metamorphic complexes, such as eclogite and blueschist, are generally regarded as significant signature of paleo-subduction zones and paleo-suture zones.
Yu-zhen Fu, Zhi-ming Peng, Bao-di Wang, Guo-zhi Wang, Jing-feng Hu, Jun-lei Guan, Ji Zhang, Zhang Zhang, Yun-he Liu, Zou Hao   +9 more
doaj   +1 more source

Corundum-bearing and spinel-bearing symplectites in ultrahigh-pressure eclogites record high-temperature overprint and partial melting during slab exhumation [PDF]

European Journal of Mineralogy, 2023
Corundum- and spinel-bearing symplectites after muscovite were found in ultrahigh-pressure (UHP) eclogites from the Dabie terrane, China. Three types of symplectites were recognized based on their mineral assemblages: (1) symplectitic intergrowths of ...
P. Tang, S. Guo, S. Guo
doaj   +1 more source

P–T CONDITIONS, U/Pb AND 40Ar/39Ar ISOTOPIC AGES OF UHT GRANULITES FROM CAPE KALTYGEI, WESTERN BAIKAL REGION

Геодинамика и тектонофизика, 2021
The study is focused on metapelitic granulites of Cape Kaltygei (Western Baikal region) that contain a diagnostic mineral assemblage of ultrahigh temperature (UHT) metamorphic rocks (orthopyroxene+sillimanite+quartz).
N. I. Volkova, E. I. Mikheev, A. V. Travin, A. G. Vladimirov, A. S. Mekhonoshin, V. V. Khlestov   +5 more
doaj   +1 more source

Ultrahigh-Sensitivity Piezoresistive Pressure Sensors for Detection of Tiny Pressure

, 2018
High-sensitivity pressure sensors are crucial for the ultrasensitive touch technology and E-skin, especially at the tiny-pressure range below 100 Pa.
Zeyang Xu (2830457), Kunjie Wu (2830454), Yancheng Meng (2830451), Liqiang Li (1548493), Hongwei Li (17402), Zhongwu Wang (1320759)   +5 more
core   +7 more sources

Retrogression of ultrahigh-pressure eclogite, Western Gneiss Region, Norway [PDF]

European Journal of Mineralogy, 2023
The Western Gneiss Region (WGR) in western Norway exposes ultrahigh-pressure (UHP) eclogites that occur repeatedly, within an area of high-pressure (HP) eclogites, without evidence of being separated by tectonic shear or ductile flow structures.
D. Spengler, A. Włodek, X. Zhong, A. Loges, S. J. Cuthbert   +4 more
doaj   +1 more source

Editorial: Seeing convergent margin processes through metamorphism [PDF]

, 2022
Plate convergence can induce large-scale metamorphism and magmatism, reshape large parts of continental margins, and subsequently change regional climate and biodiversity.
Yi Chen, Qiuli Li, Tatsuki Tsujimori, Guibin Zhang, Richard M. Palin   +4 more
core   +1 more source