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Mahu Lake

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Journal Article
Journal: AAPG Bulletin
Published: 15 September 2019
AAPG Bulletin (2019) 103 (9): 2073–2115.
... of the ancient Mahu lake, where bedded sodium carbonate alternated with fine-grained, organic-rich tuff or tuffaceous hydrocarbon source rocks. Microorganisms bloomed in the alkaline, high-salinity brine, and the organic matter was well preserved, which is similar to those modern alkaline saline lakes in eastern...
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Journal Article
Published: 01 September 2005
Journal of the Geological Society (2005) 162 (5): 745–748.
... . Cantrill , D.J. , 2000 a. A new macroflora from the South Orkney Islands, Antarctica: evidence of an Early to Middle Jurassic age for the Powell Island Conglomerate . Antarctic Science , 12 , 185 – 195 . Cantrill , D.J. , 2000 b. A Cretaceous macroflora from a freshwater lake deposit...
FIGURES
Image
Model of depositional environments in the Fengcheng Formation, <b>Mahu</b> sag, Ju...
Published: 15 September 2019
Figure 22. Model of depositional environments in the Fengcheng Formation, Mahu sag, Junggar Basin. (A) Three-dimensional model of environments when the Fengcheng Formation was deposited. (B) Basin structure and depositional environments in the north-northeast–south-southwest profile
Journal Article
Journal: AAPG Bulletin
Published: 11 November 1997
AAPG Bulletin (1997) 81 (11): 1926–1944.
... fields and two oil-stained cores in the Junggar basin revealed the presence of at least five genetic oil types. The geochemistry of the oils indicates source organic matter deposited in fresh to brackish lake and marine environments, including coaly organic matter sources. The volumetrically most...
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Journal Article
Journal: AAPG Bulletin
Published: 15 February 2021
AAPG Bulletin (2021) 105 (2): 275–307.
...Jianguo Pan; Guodong Wang; Yongqiang Qu; Wen Qi; Lu Yin; Duonian Xu; Tuanyu Teng; Bin Wang; Kaijun Tan; Linjun Huang ABSTRACT Oil and gas accumulations in the sandy conglomerate diagenetic traps that developed in the fan delta of the Triassic Baikouquan Formation of the Mahu sag, Junggar Basin...
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Journal Article
Journal: AAPG Bulletin
Published: 01 September 2014
AAPG Bulletin (2014) 98 (9): 1885–1906.
...Ming Wu; Jian Cao; Xulong Wang; Yong Tang; Bin Wang; Baoli Xiang; Sufang Kang; Wenfang Lan ABSTRACT Triassic mudstones in the Junggar Basin of northwest China, especially those of the Upper Triassic Baijiantan Formation, which formed during a lake-flooding event, are the most important set of cap...
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Journal Article
Journal: GSA Bulletin
Published: 01 December 2020
GSA Bulletin (2020)
..., hypersaline lake (or lakes). The lake deposits are closely associated with coeval volcanic rocks, suggesting that subsurface interaction of these with CO 2 -enriched hydrothermal fluids may have contributed to the excess alkalinity required to precipitate Na-carbonate. Trona (NaHCO 3 · Na 2 CO 3 · 2H 2 O...
Journal Article
Published: 01 June 2018
Russ. Geol. Geophys. (2018) 59 (6): 606–619.
... and sandy shoal), and prodelta. The braided channels form during the low flood period. The conglomerate overbanks form during the flood period and occupy most part of the fan-delta plain. The conglomerate shoals and sandy shoals form by a sheet flow prograding into lakes and occur as a sheet. The braided...
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Journal Article
Journal: Interpretation
Published: 27 March 2020
Interpretation (2020) 8 (2): SF81–SF94.
... surrounded the Bozhong 19-6 structure and provided abundant proximal coarse-grained sediments for a large-scale fan delta system. The paleogeography, slope type, parent rock type, and lake-level changes were the key factors controlling the glutenite reservoirs. The paleogeography reconstructed by prototype...
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Journal Article
Journal: AAPG Bulletin
Published: 01 August 2018
AAPG Bulletin (2018) 102 (8): 1489–1521.
.... The Junggar Basin initially developed from several isolated continental rifts in the early Permian. At the beginning of the middle Permian, the basin developed into a more integrated terrigenous lake basin with the deposition of fine-grained, organic-rich lacustrine sediments; the basin inverted during...
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Journal Article
Journal: PALAIOS
Published: 01 June 2016
PALAIOS (2016) 31 (6): 319–326.
... change compared with that of the lower Bed I and Bed II deposits, when an alkaline/saline lake extended over the site and fresh water was restricted to standing groundwater-fed pools with snail species known today to be intermediate hosts for the trematode genera Schistosoma (schistosomiasis...
FIGURES
Image
Model of shallow saline system. (A) Planar characteristics of the saline la...
Published: 15 September 2019
Figure 23. Model of shallow saline system. (A) Planar characteristics of the saline lake in the Fengcheng Formation of the Mahu sag. To the northeast was a low-angle, shallow depositional system. Slopes developed in the transitional zone between the shallow lake system and perennial subaqueous
Journal Article
Journal: Geology
Published: 22 March 2021
Geology (2021)
... Francis- can Complex, California Coast Ranges, was re- ported to directly relate to Mn-dependent AOM (Hein and Koski, 1987). More recently, high-Mn calcites with 13CVPDB (VPDB relative to Vienna Peedee belemnite) as low as 70 in the Mahu Sag (northwestern Junggar Basin in northwestern China), have been...
Journal Article
Journal: AAPG Bulletin
Published: 01 October 2016
AAPG Bulletin (2016) 100 (10): 1585–1617.
...., 2000b , 2002 ; Cao et al., 2005 ). Drilling has shown that abundant volcanism occurred in the study area during the Permian and Carboniferous and the area underwent substantial subsidence in the late Permian ( Figure 4 ). At a later time, the center of subsidence shifted to the Mahu sag. The Kebai...
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Journal Article
Journal: Interpretation
Published: 06 February 2020
Interpretation (2020) 8 (2): SF21–SF35.
... a progradational deposition pattern. The progradational deposition pattern indicates a minor relative fall of the lake level. The sandstone content layer of PSS4, PSS5, PSS6, and PSS7 decreased rapidly vertically and exhibited a trend of marginward shift from south to north, indicating a retrogradational...
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Journal Article
Journal: AAPG Bulletin
Published: 01 July 2010
AAPG Bulletin (2010) 94 (7): 937–955.
.... During the Triassic to Early Jurassic, a slight extensional basin developed, but the major faults were still reversed ( Hu et al., 2006 ). In the Late Triassic, a uniform basin occurred due to a large-scale transgression of the lake. In coincidence with the basement uplifting during the Indo-China...
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Journal Article
Journal: Interpretation
Published: 23 July 2020
Interpretation (2020) 8 (3): SL159–SL171.
.... Wu F. Wang L. Meng F. , 2016 , Fractural feature about the pore structure and controlling factor in tight glutenite reservoir in Baikouquan Formation of Mahu Depression in Junggar Basin : Well Logging...
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Journal Article
Journal: AAPG Bulletin
Published: 11 December 1999
AAPG Bulletin (1999) 83 (12): 1320–1336.
... records an overall evolution from a shallow evaporative lake to a deep freshwater lacustrine system associated with fluvial systems ( Carroll, 1998 ). He further suggested that the organic-rich laminated sequence of the Lucaogou Formation developed largely as a result of salinity induced stratification...
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Journal Article
Published: 01 November 2006
Geological Magazine (2006) 143 (6): 777–796.
... volcanism of Patagonia and the Antarctic Peninsula took place in response to intracontinental extension driven by arrival of a plume in that area. † Author for correspondence: MAHU@bas.ac.uk 04 01 2006 22 09 2005 © 2006 Cambridge University Press 2006 geochemistry crustal...
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Journal Article
Published: 23 September 2015
Seismological Research Letters (2015) 86 (6): 1622–1635.
... s  5.1 Yanjin earthquake, 2012 M s  5.7 and 5.6 Yiliang earthquakes, and 2014 M s  5.3 and 5.0 Yongshan earthquakes (Fig.  1 ), have often struck this region; and; among them; the 1974 M  7.1 northern Daguan and the 1216 M  7 Mahu earthquakes are the two greatest events recorded in the history...
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