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Fengcheng Formation

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Journal Article
Journal: GSA Bulletin
Published: 01 December 2020
GSA Bulletin (2020)
... occurrence was recently reported from the Fengcheng Formation in the northwestern Junggar Basin, NW China. However, its mineralogy, age, and geologic setting have been sparsely documented. To help establish a broader understanding of the formation of these important deposits, this paper presents...
Journal Article
Journal: AAPG Bulletin
Published: 15 September 2019
AAPG Bulletin (2019) 103 (9): 2073–2115.
...Kuanhong Yu; Yingchang Cao; Longwei Qiu; Peipei Sun ABSTRACT The Fengcheng Formation is a nonmarine, carbonate-dominated succession that formed under arid climatic conditions in a hydrologically closed basin. Two transects and two seismic profiles were examined, the characteristics...
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Northwest-southeast transection of the <b>Fengcheng</b> <b>Formation</b> (Fm.), which cro...
Published: 15 September 2019
Figure 4. Northwest-southeast transection of the Fengcheng Formation (Fm.), which crosses representative wells FN-7 and AK-1. The sedimentary thickness of bedded sodium carbonate successions increases to southeast, which can be easily identified from the true formation resistivity (RT
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Atlas of microbial mats preserved in the <b>Fengcheng</b> <b>Formation</b> (well FN-1, 44...
Published: 15 September 2019
Figure 21. Atlas of microbial mats preserved in the Fengcheng Formation (well FN-1, 4444.41 m [14,581.40 ft]). (A) Photomicrograph of microbial mats. Wavy laminated, continuous laminae alternating with discontinuous laminae, plane-polarized light. (B) Discontinuous laminae in dolomitic tuff
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Model of depositional environments in the <b>Fengcheng</b> <b>Formation</b>, Mahu 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
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Views of dolomitic intraclasts and mud intraclasts in the <b>Fengcheng</b> Formati...
Published: 15 September 2019
Figure 20. Views of dolomitic intraclasts and mud intraclasts in the Fengcheng Formation. (A) Resedimentation of a dolomitic intraclast (photomicrograph of thin section with plane-polarized light, well FN-3, 3869.81 m [12,696.23 ft]). (B) Detailed characteristics of dolomitic intraclasts
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Views of the core and thin sections of pyroclastic rocks in the <b>Fengcheng</b> F...
Published: 15 September 2019
Figure 7. Views of the core and thin sections of pyroclastic rocks in the Fengcheng Formation. (A) Lithophysa-rich welded breccia tuffs (well X-72, 4808.44–4808.85 m [15,775.72–15,777.07 ft]). (B) Volcanic breccia. These breccias are angular and red in color. Tuff fill in among these breccias
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Views of tuff and tuffaceous rocks under the microscope in the <b>Fengcheng</b> Fo...
Published: 15 September 2019
Figure 8. Views of tuff and tuffaceous rocks under the microscope in the Fengcheng Formation. (A) Dolomitic tuff. Stylolites and low clay content occurred in this rock (well W-35, 3421.79 m [11,226.35 ft], plane-polarized light). (B) Features of view (A): the rock composition is dominated
Journal Article
Journal: AAPG Bulletin
Published: 01 October 2016
AAPG Bulletin (2016) 100 (10): 1585–1617.
... , 2013 ; Hou et al., 2009 ; He et al., 2010 ; Lv et al., 2013 ; Wang et al., 2013 ). In the Kebai fault zone the Permian System, including the Permian Jiamuhe Formation (P 1 j ), Fengcheng Formation (P 1 f ), Xiazijie Formation (P 2 x ), Lower Wuerhe Formation (P 2 w ), and Upper Wuerhe...
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Journal Article
Journal: AAPG Bulletin
Published: 15 June 2020
AAPG Bulletin (2020) 104 (6): 1199–1229.
... Triassic Yanchang Formation in the Ordos Basin, the Fuyu Formation in the Songliao Basin, the Paleogene Shahejie Formation in the Jiyang depression in the Bohai Bay Basin, the Permian Fengcheng Formation in the Mahu depression, and the middle Permian Lucaogou Formation (P 2 l) in the Jimusaer depression...
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Journal Article
Journal: Interpretation
Published: 30 May 2017
Interpretation (2017) 5 (3): T373–T386.
... has led to increased exploration efforts in China for unconventional sources of oil, such as shale oil. Potential profitable sources of shale oil have been discovered in the Fengcheng, Lucaogou, and Pidiquan Formations in the Junggar Basin of western China, and a Tertiary lacustrine shale has been...
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Journal Article
Published: 01 September 2019
Journal of Paleontology (2019) 93 (5): 876–898.
...) brachiopods have been reported so far. In this paper, a new diverse brachiopod fauna consisting of 17 species of 17 genera and an unidentifiable Orthotetoidea is described from the uppermost part of the Xiala Formation at the Aduogabu section in the central part of the Lhasa Block. The age of this fauna can...
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Northwest-southeast seismic profile that crossed wells FN-7 and AK-1. Evapo...
Published: 15 September 2019
., 2017 ). Fm. = Formation; P 1 f 1 = lower Fengcheng Formation; P 1 f 2 = middle Fengcheng Formation; P 1 f 3 = upper Fengcheng Formation; P 2 x = Xiazijie Formation.
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Northeast-southwest seismic profile that crosses wells BQ-1, FN-7, FN-1, FN...
Published: 15 September 2019
, and a sodium carbonate–bearing succession. Two other important wells (FN-5 and X-201) were projected to the seismic profile and geological sketch map. The bedded sodium carbonate showed weak reflections in the seismic profile and mainly occurred in the middle Fengcheng Formation (Fm.) (the seismic profile
Journal Article
Journal: AAPG Bulletin
Published: 01 September 2008
AAPG Bulletin (2008) 92 (9): 1225–1243.
... the Lower Permian Jiamuhe Formation (P 1 j), Lower Permian Fengcheng Formation (P 1 f), and middle Permian lower Wuerhe Formation (P 2 w) ( Figures 2 , 3 ) ( Cao et al., 2005b ). According to experimental and numerical simulation studies on hydrocarbon generation ( Zhang and Wang, 2000 ; Cao et al., 2005b...
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Journal Article
Published: 01 July 2001
Journal of Paleontology (2001) 75 (4): 758–782.
...XIANG-DONG WANG; TETSUO SUGIYAMA Abstract The Middle Permian Chihsia and Maokou formations in Laibin, central Guangxi, South China contain 19 rugose coral species; of these taxa, Lophocarinophyllum sandoi, Asserculinia solida, and Innixiphyllum wuae are new. Innixiphyllum represents a new genus...
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The hydrocarbon generation history of source intervals in the lower Permian...
Published: 15 July 2019
Figure 14. The hydrocarbon generation history of source intervals in the lower Permian Fengcheng Formation (P 1 f) and middle Permian Wuerhe Formation (P 2 w). E = Paleogene; J 1 b = Lower Jurassic Badaowan Formation; J 1 s = Lower Jurassic Sangonghe Formation; J 2 t = Middle Jurassic Toutunhe
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View of cores and photographs under a microscope for well BQ-1 in the Fengc...
Published: 15 September 2019
Figure 10. View of cores and photographs under a microscope for well BQ-1 in the Fengcheng Formation. (A) Grain-supported and poorly sorted conglomerates (well BQ-1, 4101.01–4101.17 m [13,454.76–13,455.28 ft], core scanning photo). (B) Oil-bearing conglomerates (well BQ-1, 4101.89–4102.09 m
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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: AAPG Bulletin
Published: 15 February 2021
AAPG Bulletin (2021) 105 (2): 275–307.
... Triassic layers are unconformable ( Figure 2 ). The primary source rocks of the Mahu sag are the Permian Jiamuhe and Fengcheng Formations ( Clayton et al., 1997 ; Wang and Kang, 2001 ). Controlled by basin evolution, the generating center of the Jiamuhe Formation is mainly in the west Mahu area...
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