Chemical weathering in the Three Rivers region of Eastern Tibet

2009 ◽  
Vol 73 (7) ◽  
pp. 1857-1877 ◽  
Author(s):  
Hyonjeong Noh ◽  
Youngsook Huh ◽  
Jianhua Qin ◽  
Andre Ellis
Keyword(s):  
Chemical Weathering ◽  
Three Rivers Region ◽  
Eastern Tibet ◽  
Three Rivers

scholarly journals Contrasting exhumation histories and relief development within the Three Rivers Region (Southeast Tibet)

2020 ◽  
Author(s):  
Xiong Ou ◽  
Anne Replumaz ◽  
Peter van der Beek
Keyword(s):  
Mekong River ◽  
Development History ◽  
The Core ◽  
River Incision ◽  
Three Rivers Region ◽  
Eastern Tibet ◽  
Southeast Tibet ◽  
Three Rivers ◽  
Eastern Himalayan Syntaxis ◽  
Southeast Tibetan Plateau

Abstract. The Three Rivers Region in Southeast Tibet represents a transition between the strongly deformed zone around Eastern Himalayan Syntaxis and the less deformed southeast Tibetan plateau margin in Yunnan and Sichuan. In this study, we compile and model published thermochronologic ages for two massifs facing each other across the Mekong River in the core of the Three Rivers Region, by using the thermo-kinematic code Pecube to constrain their exhumation and relief development history. Modelling results for the low-relief, mean-elevation BaimaXueshan massif, east of the Mekong River, suggest regional rock uplift at a rate of 0.25 km/Myr since ~ 10 Ma, following slow exhumation at a rate of 0.01 km/Myr since at least 22 Ma. River incision accounts for only 15 % of the total exhumation in the BaimaXueshan. Exhumation since ~ 10 Ma is significantly higher (2.5 km) than that estimated (~ 0.23 km) for the most emblematic low-relief or relict surfaces of Eastern Tibet, which are characterized by apatite (U-Th)/He ages older than the collision age (> 50 Ma). We conclude that the BaimaXueshan massif, which shows younger ages (

scholarly journals Contrasting exhumation histories and relief development within the Three Rivers Region (south-east Tibet)

Solid Earth ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 563-580
Author(s):  
Xiong Ou ◽  
Anne Replumaz ◽  
Peter van der Beek
Keyword(s):  
High Elevation ◽  
Mekong River ◽  
The West ◽  
Surface Modelling ◽  
The Core ◽  
River Incision ◽  
Three Rivers Region ◽  
Eastern Tibet ◽  
Three Rivers ◽  
Moderate Elevation

Abstract. The Three Rivers Region in south-east Tibet represents a transition between the strongly deformed zone around the Eastern Himalayan Syntaxis (EHS) and the less deformed south-east Tibetan Plateau margin in Yunnan and Sichuan. In this study, we compile and model published thermochronometric ages for two massifs facing each other across the Mekong River in the core of the Three Rivers Region (TRR), using the thermo-kinematic code Pecube to constrain their exhumation and relief history. Modelling results for the low-relief (< 600 m), moderate-elevation (∼ 4500 m) Baima Xueshan massif, east of the Mekong River, suggest regional rock uplift at a rate of 0.25 km/Myr since ∼ 10 Ma, following slow exhumation at a rate of 0.01 km/Myr since at least 22 Ma. Estimated Mekong River incision accounts for 30 % of the total exhumation since 10 Ma. We interpret exhumation of the massif as a response to regional uplift around the EHS and conclude that the low relief of the massif was acquired at high elevation (> 4500 m), probably in part due to glacial “buzzsaw-like” processes active at such high elevation and particularly efficient during Quaternary glaciations. Exhumation of the Baima Xueshan is significantly higher (2.5 km since ∼ 10 Ma) than that estimated for the most emblematic low-relief “relict” surfaces of eastern Tibet, where apatite (U–Th) / He (AHe) ages > 50 Ma imply only a few hundreds of metres of exhumation since the onset of the India–Asia collision. The low-relief Baima Xueshan massif, with its younger AHe ages (< 50 Ma) that record significant rock uplift and exhumation, thus cannot be classified as a relict surface. Modelling results for the high-relief, high-elevation Kawagebo massif, to the west of the Mekong, imply a similar contribution of Mekong River incision (25 %) to exhumation but much stronger local rock uplift at a rate of 0.45 km/Myr since at least 10 Ma, accelerating to 1.86 km/Myr since 1.6 Ma. We show that the thermochronometric ages are best reproduced by a model of rock uplift on a kinked westward-dipping thrust striking roughly parallel to the Mekong River, with a steep shallow segment flattening out at depth. Thus, the strong differences in elevation and relief of two massifs are linked to variable exhumation histories due to strongly differing tectonic imprint.

scholarly journals Palaeomagnetic study of eastern Tibet-deformation of the Three Rivers region

1990 ◽  
Vol 103 (1) ◽  
pp. 85-94 ◽  
Author(s):  
Y. Otofuji ◽  
Y. Inoue ◽  
S. Funahara ◽  
F. Murata ◽  
X. Zheng
Keyword(s):  
Three Rivers Region ◽  
Eastern Tibet ◽  
Three Rivers

scholarly journals The Birth and Death of the Russian House in the Priargun’ie Three Rivers Region, People’s Republic of China (1)

Folklorica ◽  
2015 ◽  
Vol 18 ◽  
Author(s):  
Vladimir Klyaus
Keyword(s):  
20Th Century ◽  
19Th Century ◽  
Early 20Th Century ◽  
Traditional Practices ◽  
Soviet Rule ◽  
Late 19Th Century ◽  
Republic Of China ◽  
Three Rivers Region ◽  
Three Rivers ◽  
Over Time

This article considers the remnants of Russian ritual practices surrounding houses in the Priangun’ie region of China. This region was populated by Russians from the late 19th century on. A large group of immigrants (Russian, Tungus and Buriat) immigrated there from the Transbaikal region of Russia after the establishment of Soviet rule in the early 20th century. The paper examines what remains of Russian traditional practices, how they have been blended with native Chinese traditions, and adapted over time to reflect intermarriage between people of Chinese or Tungus and Russian descent.

PARTING (WITH) THE DEAD: BODY PARTIBILITY AS EVIDENCE OF COMMONER ANCESTOR VENERATION

2012 ◽  
Vol 23 (1) ◽  
pp. 115-130 ◽  
Author(s):  
Pamela L. Geller
Keyword(s):  
Social Class ◽  
Life Histories ◽  
Postmortem Changes ◽  
Body Parts ◽  
Ancestor Veneration ◽  
Social Settings ◽  
Three Rivers Region ◽  
The Reformation ◽  
History Of ◽  
Three Rivers

AbstractAs a complement to life histories authored by many researchers of Maya bones, this study narrates death histories. The latter entails detection of perimortem and postmortem changes to decedents' bodies, followed by translation of these changes' encoded meanings. Biographical analysis of body parts and the buildings in which they are situated facilitates such an endeavor. Past investigations of partibility have focused on protracted processing of noble and royal bodies as a means to reconstitute decedents' identities. Commoners' burials, however, have received far less attention. Consequently, it is difficult to determine if partible practices differ according to or transcend social class. To address this lacuna, a multiscalar frame is applied to a burial sample comprised of decedents from varied social settings in the Three Rivers region, northwestern Belize. Identification of widely shared practices related to the becoming and venerating of ancestors offers a springboard for examining particulars within patterns. Scaling down, commoner burials unearthed at the minor center RB-11 are summarized and special attention is paid to the death history of Individual 71. This decedent's intentionally fragmented body reflects general thinking about ancestors as partible and dividual persons. Yet, certain attributes of Individual 71's burial are unique to the sample as a whole, which demonstrates how social class, circumstance, and individual life history are also instrumental in the reformation of ancestorhood.

AN EARLY ROYAL MAYA TOMB FROM CHAN CHICH, BELIZE

2010 ◽  
Vol 21 (2) ◽  
pp. 229-248 ◽  
Author(s):  
Brett A. Houk ◽  
Hubert R. Robichaux ◽  
Fred Valdez
Keyword(s):  
Yucatan Peninsula ◽  
Classic Period ◽  
Cultural Changes ◽  
East Central ◽  
Yucatán Peninsula ◽  
Three Rivers Region ◽  
Archaeological Project ◽  
Early Classic Period ◽  
Three Rivers

AbstractIn 1997, the Chan Chich Archaeological Project excavated a Terminal Preclassic/Early Classic period Maya tomb at Chan Chich, Belize. Tomb 2 represents the earliest royal tomb in the Three Rivers Region of the east-central Yucatan Peninsula and has striking similarities to Burial 85 at Tikal, the tomb of the dynastic founder Yax Ehb' Xook. This paper describes Tomb 2 and its contents and considers its significance within the context of the significant political and cultural changes that marked the transition from the Late Preclassic to the Early Classic period. We argue that the tomb is an early example of a regional expression of elite competition for status and power in the Central Lowlands that included the use of a subcomplex of ceramics and exotic artifacts to express prestige. Tomb 2 is also an example of an early royal burial pattern that may be more widespread than believed but has been overlooked due to excavation bias.

scholarly journals “Returning Home as an Enemy”. The Languages for Description and Self-Description of Inner Asia Repatriates

2020 ◽  
pp. 665-675
Author(s):  
Ivan O. Peshkov
Keyword(s):  
Social Practice ◽  
Soviet Society ◽  
Historical Knowledge ◽  
Target Groups ◽  
Inner Asia ◽  
The Past ◽  
Three Rivers Region ◽  
Political Solidarity ◽  
Three Rivers

The article explores the doubts and anxieties associated with the return of two communities of Russian long-term residents of Inner Asia – the Cossack repatriates of the Three Rivers Region and the local Mongolian Russians – to the Soviet citizenship. The theoretical basis of the article is the statement about the epistemological character of the presence of the past, which determines a crucial influence of the current terms on any historical knowledge. In this perspective, the memory of the past can be considered not only as its subjective reflection, but also as a social practice that identifies the community’s status. The purpose of this article is to show how the Soviet people used speech practices in relation to the temporary and spatial discrepancy of repatriates. The main characters of this article will be the ways of creating an image of the enemy linguistically and mastering it by target groups in everyday life. In this perspective, the decision to repatriate, which causes distrust and alarm, is a convenient marker for the inclusion of local political folklore in the conflict between ethnic and political solidarity in Soviet society

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