New observations on Devonian in the Baoshan Block of western Yunnan, China

2021 ◽  
Author(s):  
Li Qiao ◽  
Wen‐Kun Qie ◽  
Ying‐Yan Mao ◽  
Jun‐Jun Song ◽  
Jian‐Feng Lu ◽  
...  
Keyword(s):  
Western Yunnan

Author response for "The genesis of Eocene granite‐related Lailishan tin deposit in western Yunnan, China: Constraints from geochronology, geochemistry, and S – Pb – H – O isotopes"

2020 ◽  
Author(s):  
Weiqing Wang ◽  
Guochen Dong ◽  
Zhuanrong Sun ◽  
Pengsheng Dong ◽  
Yanning Pan ◽  
...  
Keyword(s):  
Author Response ◽  
Western Yunnan ◽  
Tin Deposit

Prince Henri d'Orleans (1867–1901): geographical and botanical exploration between inner Asia and southwest China

1978 ◽  
Vol 8 (4) ◽  
pp. 399-399
Author(s):  
WILLIAM GARDENER
Keyword(s):  
Southwest China ◽  
Western China ◽  
Left Bank ◽  
Inner Asia ◽  
Botanical Exploration ◽  
Western Yunnan ◽  
Westerly Direction ◽  
Chinese Province ◽  
The Right ◽  
North Western

Prince Henri d'Orleans, precluded by French law from serving his country in the profession of arms, had his attention turned early towards exploration. In 1889, accompanied by the experienced traveller Gabriel Bonvalet, he set out from Paris to reach Indo-China overland by way of Central Asia, Tibet and western and south western China. The journey made contributions in the problems of the whereabouts of Lap Nor and the configuration of the then unexplored northern plateau of Tibet; and in botany it produced some species new to science. The party reached Indo-China in 1890. In 1895, having organised an expedition better equipped for topographical survey and for investigations in the fields of natural history and ethnography, Prince Henri set out from Hanoi with the intention of exploring the Mekong through the Chinese province of Yunnan. After proceeding up the left bank of the Salween for a brief part of its course and then alternating between the right and left banks of the Mekong as far up as Tzeku, the party found it advisable to enter Tibet in a north westerly direction through the province of Chamdo and instead crossed the south eastern extremity of the country, the Zayul, by a difficult track which led them to the country of the Hkamti Shans in present day Upper Burma, and thence to India completing a journey of 2000 miles, "1500 of which had been previously untrodden" (Prince Henri). West of the Mekong, the journey established that the Salween, which some geographers had claimed took its rise in or near north western Yunnan, in fact rose well north in Tibet, and that, contrary to previous opinions, the principal headwater of the Irrawaddy rose no further north than latitude 28°30'. Botanical collections were confined to Yunnan, where the tracks permitted mule transport, and they produced a number of species new to science and extended the range of distribution of species already known.

Geochemical characteristics of marine siliceous rocks in the western Yunnan Paleo-Tethys orogenic belt and their palaeoenvironmental implications

2020 ◽  
Vol 54 (1) ◽  
pp. 29-41
Author(s):  
Jingyu Liu ◽  
Nianqiao Fang ◽  
Zhiyin Tang ◽  
Junzhu Wang
Keyword(s):  
Orogenic Belt ◽  
Geochemical Characteristics ◽  
Siliceous Rocks ◽  
Western Yunnan

scholarly journals Prevalence of molecular markers associated with drug resistance of Plasmodium vivax isolates in Western Yunnan Province, China

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Xiaoxiao Wang ◽  
Wei Ruan ◽  
Shuisen Zhou ◽  
Xinyu Feng ◽  
He Yan ◽  
...  
Keyword(s):  
Drug Resistance ◽  
Molecular Markers ◽  
Plasmodium Vivax ◽  
Yunnan Province ◽  
Western Yunnan

Origin of the Eocene porphyries and mafic microgranular enclaves from the Beiya porphyry Au polymetallic deposit, western Yunnan, China: Implications for magma mixing/mingling and mineralization

2016 ◽  
Vol 40 ◽  
pp. 230-248 ◽  
Author(s):  
Wen-yan He ◽  
Xuan-xue Mo ◽  
Li-qiang Yang ◽  
Yan-lu Xing ◽  
Guo-chen Dong ◽  
...  
Keyword(s):  
Magma Mixing ◽  
Polymetallic Deposit ◽  
Western Yunnan ◽  
Microgranular Enclaves ◽  
Mafic Microgranular Enclaves

Age and Origin of Paleogene Granitoids from Western Yunnan Province, China: Geochemistry, SHRIMP Zircon Ages, and Hf-in-Zircon Isotopic Compositions

2015 ◽  
Vol 89 (5) ◽  
pp. 1601-1615 ◽  
Author(s):  
SHI Yuruo ◽  
WU Zhonghai ◽  
Alfred KRÖNER ◽  
FAN Taoyuan ◽  
YANG Zhenyu
Keyword(s):  
Yunnan Province ◽  
Isotopic Compositions ◽  
Western Yunnan ◽  
Shrimp Zircon

Structure and spatial-temporal relationship of potassic magmatism linked to a continental-scale strike-slip shear zone and post-collisional Cenozoic extension

2021 ◽  
Author(s):  
junyu Li ◽  
shunyun Cao ◽  
Xuemei Cheng ◽  
Haobo Wang ◽  
Wenxuan Li
Keyword(s):  
Partial Melting ◽  
Shear Zone ◽  
Continental Crust ◽  
Red River ◽  
Compositional Variation ◽  
Continental Scale ◽  
Magmatic Rocks ◽  
Western Yunnan ◽  
Potassic Rocks ◽  
Potassic Magmatism

<p>Adakite‐like potassic rocks are widespread in post-collisional settings and provide potential insights into deep crustal or crust-mantle interaction processes including asthenosphere upwelling, partial melting, lower crustal flow, thickening and collapse of the overthickened orogen. However, petrogenesis and compositional variation of these adakite‐like potassic rocks and their implications are still controversial. Potassic magmatic rocks are abundant developed in the Jinshajiang–Ailaoshan tectono-magmatic belt that stretches from eastern Tibet over western Yunnan to Vietnam. Integrated studies of structure, geochronology, mineral compositions and geochemistry indicate adakite-like potassic rocks with different deformation are exposed along the Ailaoshan-Red River shear zone. The potassic felsic rocks formed by mixing and partial melting between enriched mantle-derived ultrapotassic and thickened ancient crust-derived magmas. The mixing of the mafic and felsic melts and their extended fractional crystallization of plagioclase, K-feldspar, hornblende and biotite gave rise to the potassic magmatic rocks. Zircon geochronology provide chronological markers for emplacement at 35–37 Ma of these adakite-like potassic rocks along the shear zone. Temperature and pressure calculated by amphibole-plagioclase thermobarometry range from 3.5 to 5.9 kbar and 650 to 750 ℃, respectively, and average emplacement depths of ca. 18 km for granodiorite within this suite. In combination with the results of the Cenozoic potassic magmatism in the Jinshajiang–Ailaoshan tectono-magmatic belt, we suggest that in addition to partial melting of the thickened ancient continental crust, magma underplating and subsequent crust-mantle mixing beneath the ancient continental crust have also played an important role in crustal reworking and strongly affected the rheological properties and density of rocks. The exhumation underlines the role of lateral motion of the Ailaoshan-Red River shear zone initiation by potassic magma-assisted rheological weakening and exhumation at high ambient temperatures within the shear zone.</p>

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