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Shawan Sag

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Journal Article
Journal: AAPG Bulletin
Published: 15 September 2019
AAPG Bulletin (2019) 103 (9): 2247–2284.
.... In detail, the Shawan and Mahu sags expelled the early-stage hydrocarbons during the Late Triassic and Late Jurassic, respectively, because of their variable subsidence. These hydrocarbons charged the entire area based on the evidence from bitumen and oil inclusions. During the Early Cretaceous, both sags...
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The reconstructed burial and thermal history for (A) Mahu <b>sag</b> (well X72 in ...
Published: 01 August 2018
Figure 16. The reconstructed burial and thermal history for (A) Mahu sag (well X72 in west slope), (B) Pen1 Xi sag, (C) Shawan sag, and (D) Fukang sag. E = Paleogene; J = Jurassic; J 1 b = Lower Jurassic Badaowan Formation; J 1 S = Lower Jurassic Sangonghe Formation; J 3 q = Upper Jurassic Qigu
Image
Recent petroleum ( a )  generation intensity and ( b )  expulsion intensity...
Published: 08 April 2014
Fig. 13. Recent petroleum ( a ) generation intensity and ( b ) expulsion intensity of J 1 b shales on the southern margin of Junggar Basin (contour values in × 10 4 t/km 2 ). Thermally mature source rocks occur mainly in the structural sags, including the Fukang Sag, Shawan Sag, Huo-Ma-Tu
Image
TOC distribution of J 1  b  shales on the southern margin of Junggar Basin ...
Published: 08 April 2014
Fig. 5. TOC distribution of J 1 b shales on the southern margin of Junggar Basin (contour values in wt.%). The average original TOC in the Badaowan Formation is between 1.0% and 2.6%. Higher TOC values tend to occur within the Fukang Sag, Shawan Sag, and Qigu Fault-fold Belt. TOC values
Journal Article
Journal: AAPG Bulletin
Published: 15 July 2019
AAPG Bulletin (2019) 103 (7): 1625–1652.
... and trace elements. Liu et al. (2011) suggested that the light oil in the Neogene Shawan Formation (N 1 s) in the western Chepaizi uplift had been charged since the Neogene, derived from Jurassic source intervals in the Sikeshu sag, as evidenced by the integration of oil geochemistry with fluid inclusion...
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Image
Cross section shows oilfields and petroleum-system elements through the Hon...
Published: 01 August 2018
Figure 18. Cross section shows oilfields and petroleum-system elements through the Hongche Fault Belt and Shawan sag (for location, see Figure 15 ). C = Carboniferous; E = Paleogene; J 1 = Lower Jurassic; K = Cretaceous; N = Neogene; P 1 = lower Permian; P 2 = middle Permian; T 1 = Lower
Image
The thickness distribution of J 1  b  source rocks on the southern margin o...
Published: 08 April 2014
Fig. 4. The thickness distribution of J 1 b source rocks on the southern margin of Junggar Basin (contour values in metres): ( a ) shale; ( b ) coal bed. These rocks are well developed in the study area. The Badaowan Formation dark shale is mainly distributed in the Fukang Sag, Shawan Sag
Journal Article
Journal: AAPG Bulletin
Published: 01 August 2018
AAPG Bulletin (2018) 102 (8): 1489–1521.
...Figure 16. The reconstructed burial and thermal history for (A) Mahu sag (well X72 in west slope), (B) Pen1 Xi sag, (C) Shawan sag, and (D) Fukang sag. E = Paleogene; J = Jurassic; J 1 b = Lower Jurassic Badaowan Formation; J 1 S = Lower Jurassic Sangonghe Formation; J 3 q = Upper Jurassic Qigu...
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Journal Article
Published: 08 April 2014
Canadian Journal of Earth Sciences (2014) 51 (6): 537–557.
...Fig. 13. Recent petroleum ( a ) generation intensity and ( b ) expulsion intensity of J 1 b shales on the southern margin of Junggar Basin (contour values in × 10 4 t/km 2 ). Thermally mature source rocks occur mainly in the structural sags, including the Fukang Sag, Shawan Sag, Huo-Ma-Tu...
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Journal Article
Journal: AAPG Bulletin
Published: 01 December 2017
AAPG Bulletin (2017) 101 (12): 1995–2019.
... in the west, and Kelameili Mountains in the east ( Chen et al., 2014 ) ( Figure 1B ). The Zhongguai area is located at the northwestern margin of the Junggar Basin ( Figure 1B ), with Hongche fault to the west, Hong3 well fault to the north, Penyijingxi sag to the east, and Shawan sag to the south ( Figure 1C...
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Series: Geological Society, London, Special Publications, Geological Society, London, Special Publications
Published: 01 January 2016
DOI: 10.1144/SP429.1
EISBN: 9781862399617
... Nielsen et al. 1999 ; Pubellier & Chan 2006 ; Sun et al. 2008 ). Locations mentioned in the text are: (1) the Song Hong–Yinggehai Basin, (2) the Qiongdongnan Basin, (3) the Main Baiyun Sag, (4) Pearl River Mouth Basin and (5) the Yangtze Mouth Basin; and (S) the Song Hong River deltaic basin, (P...
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Journal Article
Journal: Interpretation
Published: 06 February 2020
Interpretation (2020) 8 (2): SF21–SF35.
... geomorphology and depositional system of delta and terminal fan: A case study of the Neogene Shawan Formation in the Chepaizi Uplift, Junggar Basin, China : Marine and Petroleum Geology , 83 , 362 – 381 , doi: http://dx.doi.org/10.1016/j.marpetgeo.2016.10.006 . MPEGD8 0264-8172...
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Journal Article
Journal: Interpretation
Published: 23 July 2020
Interpretation (2020) 8 (3): SL137–SL150.
... Fault-belt, Mahu Depression, Dabasong Uplift, Western Well Pen 1 Depression, and Shawan Depression. Structurally, the Zhongguai Uplift was converted from the Kebai and Hongche Fault-belts due to compression deformation by plate collision in the Hercynian orogeny (Figure  1c ) ( Liu, 2017 ; Wu et al...
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Journal Article
Journal: AAPG Bulletin
Published: 15 September 2019
AAPG Bulletin (2019) 103 (9): 2073–2115.
... Fengcheng Formation in the Mahu sag in China as an example for discussion of the following: (1) the characteristics and formation of representative lithofacies in an alkaline saline lake; (2) basin structures of the arid, closed basin; and (3) depositional environmental divisions, identifying...
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Journal Article
Journal: GSA Bulletin
Published: 01 December 2020
GSA Bulletin (2020)
... would make the Fengcheng Formation roughly coinci- dent with the peak of Late Paleozoic glaciation. This study is based on well logs and drill core from the northwestern edge of the Mahu sag, a petroliferous sub-basin of the Junggar Basin (Cao et al., 2005). It integrates new stratigraphic...
Journal Article
Journal: Interpretation
Published: 15 June 2020
Interpretation (2020) 8 (3): SM115–SM127.
... . Yang K. Dong C. Q. Xu G. S. , 2012 , Analysis of provenance and sedimentary facies of Neogene Shawan formation in Chepaizi area : Journal of China University of Petroleum , 36 , 7 – 19 , doi: http...
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Published: 06 October 2006
DOI: 10.1130/2006.fld008(04)
EISBN: 9780813756080
..., the southernmost ridge of the Ridge and Valley Province. Viewed from a distance, these gaps or low sags interrupt the fairly flat ridge top that was termed the “Schooley peneplain” by Davis (1889) and popularized by Johnson (1931) . Ideas on the origin of these gaps are critical factors in the discussions about...
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Series: GSA Field Guide
Published: 01 January 2010
DOI: 10.1130/2010.0016(06)
EISBN: 9780813756165
..., these gaps or low sags interrupt the fairly flat ridge top that was termed the “Schooley peneplain” by Davis (1889) and popularized by Johnson (1931) . Ideas on the origin of these gaps are critical factors in the discussions about the geomorphic development of the Appalachians. Those hypotheses...
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