Abundant microspherules from the Upper Ordovician of northern Tarim Basin, Northwest China: Origin and palaeoenvironmental implications

2018 ◽  
Vol 53 (6) ◽  
pp. 2896-2907 ◽  
Author(s):  
Xiao-Lin Chang ◽  
Ming-Cai Hou ◽  
Xin-Chun Liu ◽  
Elizabeth Orr ◽  
Min Deng ◽  
...  
Keyword(s):  
Tarim Basin ◽  
Northwest China ◽  
Upper Ordovician ◽  
Northern Tarim Basin

scholarly journals Positive carbon isotope excursions: global correlation and genesis in the Middle–Upper Ordovician in the northern Tarim Basin, Northwest China

2016 ◽  
Vol 13 (2) ◽  
pp. 192-203 ◽  
Author(s):  
Cun-Ge Liu ◽  
Li-Xin Qi ◽  
Yong-Li Liu ◽  
Ming-Xia Luo ◽  
Xiao-Ming Shao ◽  
...  
Keyword(s):  
Carbon Isotope ◽  
Tarim Basin ◽  
Northwest China ◽  
Upper Ordovician ◽  
Global Correlation ◽  
Northern Tarim Basin

Emplacement of intrusions of the Tarim Flood Basalt Province and their impacts on oil and gas reservoirs: A 3D seismic reflection study in Yingmaili fields, Tarim Basin, northwest China

2017 ◽  
Vol 5 (3) ◽  
pp. SK51-SK63 ◽  
Author(s):  
Zhongbo Gao ◽  
Wei Tian ◽  
Lei Wang ◽  
Yongmin Shi ◽  
Mao Pan
Keyword(s):  
Tarim Basin ◽  
Seismic Reflection ◽  
Oil And Gas ◽  
Northwest China ◽  
Lower Permian ◽  
Magmatic Activity ◽  
3D Seismic ◽  
Gas Reservoirs ◽  
Oil And Gas Reservoirs ◽  
Northern Tarim Basin

A basaltic dike-sill network is emplaced into the shallow subsurface of the Yingmai-2 dome, northern Tarim Basin, northwest China. The 3D seismic reflection imaging suggests that these dikes and sills are fed from an intrusion at the focal area of the dome. This basaltic intrusion has a width of approximately 3000 m and thickness of approximately 1000 m, and it is connected with a much larger Early Permian igneous body in the northern Tarim Basin. An unconformity between the Permian basalt lava flows and the base Triassic conglomerates truncates the dome, meaning that the dome must have developed prior to the Triassic. The basaltic intrusion that emplaced beneath the dome likely pushed the surrounding middle Cambrian salts away and instigated uplift of the overlying upper Cambrian to the lower Permian strata. In most cases, igneous activity plays a negative role on formation of oil and gas reservoirs. However, in the Yingmai-2 case, intrusive magmatic activity has caused “forced folding” of the overburdened strata and controlled the formation of a large commercial oil trap. We suggest that the magmatic activity thus also acts as a positive role on the local formation of a producing petroleum system.

scholarly journals The Formal Kharoṣṭhī script from the Northern Tarim Basin in Northwest China may write an Iranian language

2020 ◽  
Vol 73 (3) ◽  
pp. 335-373
Author(s):  
Federico Dragoni ◽  
Niels Schoubben ◽  
Michaël Peyrot
Keyword(s):  
Tarim Basin ◽  
Collaborative Work ◽  
Northwest China ◽  
Northern Tarim Basin

ABSTRACTBuilding on collaborative work with Stefan Baums, Ching Chao-jung, Hannes Fellner and Georges-Jean Pinault during a workshop at Leiden University in September 2019, tentative readings are presented from a manuscript folio (T II T 48) from the Northern Tarim Basin in Northwest China written in the thus far undeciphered Formal Kharoṣṭhī script. Unlike earlier scholarly proposals, the language of this folio cannot be Tocharian, nor can it be Sanskrit or Middle Indic (Gāndhārī). Instead, it is proposed that the folio is written in an Iranian language of the Khotanese-Tumšuqese type. Several readings are proposed, but a full transcription, let alone a full translation, is not possible at this point, and the results must consequently remain provisional.

scholarly journals Groundwater recharge in the oasis-desert areas of northern Tarim Basin, Northwest China

2020 ◽  
Vol 51 (6) ◽  
pp. 1506-1520
Author(s):  
Weihua Wang ◽  
Yaning Chen ◽  
Wanrui Wang
Keyword(s):  
Stable Isotopes ◽  
Surface Water ◽  
Groundwater Recharge ◽  
Tarim Basin ◽  
Shallow Groundwater ◽  
Northwest China ◽  
Water Infiltration ◽  
Ecological Processes ◽  
Surface Water And Groundwater ◽  
Northern Tarim Basin

Abstract Groundwater is an important source for maintaining desert ecological processes in arid areas. With the increasing intensity of climate change and human activities, the rivers in Tarim Basin are severely dried-up. Aiming at the dried-up river, vegetation degradation and oasis maintenance in the middle and lower reaches of dried-up river basin, groundwater recharge and groundwater-surface water interaction have become hotspots, but are not well known. We examined spatial distributions and controlling factors of groundwater stable isotopes and recharge at oasis scale using data from 247 samples surveyed in the four headwaters in the northern Tarim Basin. Stable isotopes of surface water and groundwater were different from each other, and varied among sampling sites. Surface water and groundwater isotopes generally became enriched towards the east throughout the study area, while surface water isotopes showed enrichment towards the upstream direction within each catchment, mainly due to cultivated area expansion. Surface water mainly originated from precipitation, groundwater, and meltwater, while shallow groundwater derived from lateral groundwater flow, river and irrigated water infiltration, and little precipitation. The mainstream water was directly recharged by the headwaters. The results could provide a new insight into groundwater cycling in oases of dried-up river basins, which is helpful for regional groundwater management.

Transfer Structures in the Northern Tarim Basin, Northwest China

1996 ◽  
Vol 38 (3) ◽  
pp. 284-291
Author(s):  
Guang-Ya Zhang ◽  
Shi-Xia Gao
Keyword(s):  
Tarim Basin ◽  
Northwest China ◽  
Northern Tarim Basin

Paleogeographic and paleoecological significance of Schachriomonia (Brachiopoda) from the Upper Ordovician of the Tarim Basin, Northwest China

2019 ◽  
Vol 93 (06) ◽  
pp. 1075-1087 ◽  
Author(s):  
Colin D. Sproat ◽  
Renbin Zhan
Keyword(s):  
Tarim Basin ◽  
Northwest China ◽  
Mantle Cavity ◽  
Shell Shape ◽  
Upper Ordovician ◽  
Tooth Socket ◽  
Ontogenic Development ◽  
Socket Connection ◽  
First Time ◽  
North And South

AbstractThe atrypide brachiopod Schachriomonia is documented here for the first time from the upper Katian Hadabulaktag Formation on the northeastern edge of Tarim Basin in Northwest China. These shells are conspecific with the earlier reported Rhynchotrema pentagonia Fang in Liu and Fang, 1990 from the same region. This species is most similar to Schachriomonia parva Popov et al., 1999 described from the Upper Ordovician of the Chu-Ili and Chingiz terranes and less closely resembles species from North and South China, indicating a close paleogeographic connection between these plates and terranes and Tarim during the Late Ordovician. Its dominance at three horizons in the study area may indicate that this species was an opportunistic colonizer of the seafloor following ecological disruption, or alternatively that the larvae were substrate-selective. Variation in shell shape from a nearly circular shell outline with a dorsal sulcus and ventral fold in the smallest shells to a wider outline with a more reversed dorsal fold and ventral sulcus in the largest is an example of ontogenic development. This may have been an adaptation to accommodate the growing lophophore or development of gonads in the mantle cavity over the life of the brachiopod. A stronger tooth-socket connection in larger shells strengthened the hinge area to better withstand the stresses caused by the mass of a larger shell.

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