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Liujiagou Formation

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Journal Article
Published: 01 March 2018
Russ. Geol. Geophys. (2018) 59 (3): 299–312.
... ( Chen et al., 2009 ). Fig. 2. Structural section of A–A′ in the study area (see Fig. 1 for the section location). Q, Quaternary; T1h, Lower Triassic Heshanggou Formation; T 1 l, Lower Triassic Liujiagou Formation; P 3 sh, Upper Permain Shiqianfeng Formation; P 2 s Middle Permain Upper Shihezi...
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Journal Article
Journal: AAPG Bulletin
Published: 01 March 2013
AAPG Bulletin (2013) 97 (3): 363–377.
... and porosity. These fractured sandstones are located on a structurally modified buried hill underlying Paleogene mudstones, and are truncated along an angular unconformity. The fractured sandstone oils of the Triassic Liujiagou, Heshanggou, and Ermaying Formations are derived from the Paleogene Shahejie...
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Journal Article
Journal: Interpretation
Published: 02 March 2020
Interpretation (2020) 8 (2): T259–T274.
..., Carboniferous, Ordovician, and Cambrian. The Triassic strata are the main oil-bearing formations in the basin and are composed of three groups: Upper, Middle, and Lower Triassic. Specifically, the Lower Triassic includes the Liujiagou Formation and the Heshanggou Formation from bottom to top, the Middle...
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Journal Article
Published: 01 September 2020
Journal of Paleontology (2020) 94 (5): 887–905.
...Masateru Shibata; David J. Varricchio Abstract A locality in the Upper Cretaceous Two Medicine Formation of Montana preserves abundant and variable horseshoe crab tracks and trails of the ichnotaxon Kouphichnium isp. These specimens span six morphologies differing in track form and trail...
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Image
Field and fossil photos. (A) Lithological boundary between Sunjiagou and Li...
Published: 16 October 2019
Figure 2. Field and fossil photos. (A) Lithological boundary between Sunjiagou and Liujiagou Formations at Dayulin. (B) Lithological boundary between Sunjiagou and Liujiagou Formations at Shichuanhe. (C) Sunjiagou Formation at Zishiya. (D−E) Paleosol carbonates in middle Sunjiagou Formation
Image
Structural section of A–A′ in the study area (see  Fig. 1  for the section ...
Published: 01 March 2018
Fig. 2. Structural section of A–A′ in the study area (see Fig. 1 for the section location). Q, Quaternary; T1h, Lower Triassic Heshanggou Formation; T 1 l, Lower Triassic Liujiagou Formation; P 3 sh, Upper Permain Shiqianfeng Formation; P 2 s Middle Permain Upper Shihezi Formation; P 2 x
Journal Article
Journal: PALAIOS
Published: 17 March 2020
PALAIOS (2020) 35 (3): 122–134.
...XIAOBO LI; WANXUAN ZHONG; YINI WANG; ROBERT R. REISZ ABSTRACT During the late Permian, an alluvial environment prevailed along the northern margin of the North China Plate in the Xingcheng area, Liaoning Province, China. In this region, the middle–late Permian Shihhotse Formation and the late...
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Journal Article
Journal: Interpretation
Published: 08 February 2017
Interpretation (2017) 5 (2): SF81–SF98.
... is near the Gaotouyao region in Inner Mongolia (Figures  1 and 5a ). The Gaotouyao outcrop includes the lower Triassic Liujiagou and Heshanggou Formations, middle Triassic Zhifang Formation, and upper Triassic Yanchang Formation. The lower to middle Triassic Gaotouyao lithologies are basically similar...
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Journal Article
Published: 23 December 2019
Journal of Environmental and Engineering Geophysics (2019) 24 (4): 621–628.
... in the survey area are Quaternary (Q), Ermaying formation (T 2 er), Heshanggou formation (T 2 h) and Liujiagou formation (T 2 l) of Triassic, Shiqianfeng formation (P 2 sh), Upper Shihezi formation (P 2 s), Lower Shihezi formation (P 1 x) and Shanxi formation (P 1 s) of Permian, Taiyuan formation (C 3 t...
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Journal Article
Journal: Interpretation
Published: 26 October 2020
Interpretation (2020) 8 (4): T981–T990.
... thrusted zone, and Jinxi flexure zone ( Li et al., 2017 ; Figure  1 ). During the Triassic period, the basin mainly develops four formations, from the bottom to the top: the Liujiagou, Heshanggou, Zhifang, and Yanchang Formations ( Cao et al., 2016 ). The Yanchang Formation deposits 10 oil layers, sets...
Journal Article
Journal: GSA Bulletin
Published: 16 October 2019
GSA Bulletin (2020) 132 (5-6): 1106–1118.
...Figure 2. Field and fossil photos. (A) Lithological boundary between Sunjiagou and Liujiagou Formations at Dayulin. (B) Lithological boundary between Sunjiagou and Liujiagou Formations at Shichuanhe. (C) Sunjiagou Formation at Zishiya. (D−E) Paleosol carbonates in middle Sunjiagou Formation...
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Image
Location and stratigraphic architecture of the Ordos Basin. (A) Location ma...
Published: 15 January 2021
= Middle Jurassic Yanan Formation; P 1 t = lower Permian Taiyuan Formation; P 2 h = middle Permian Shihezi Formation; P 3 q = upper Permian Shiqianfeng Formation; T 1 l–T 2 z = Lower Triassic Liujiagou to Middle Triassic Zhifang Formation.
Image
Lithostratigraphy, δ 13 C org  profile, fossil distribution, and paleosol c...
Published: 16 October 2019
.—Formation; LJG—Liujiagou; TOC—total organic carbon. C . —Clarkina ; H . —Hindeodus ; I . —Isarcicella .
Image
Horseshoe crab trace fossil occurrences.              Age  Ichnotaxa  Forma...
Published: 01 September 2020
Rioja, Argentina Playa lake Aceñolaza and Buatois ( 1993 ) Zhang et al. ( 1998 ) Upper Permian Kouphichnium lithographicum K. didactylum Kouphichnium cf. K. gracilis Sunjiagou and Liujiagou formations North China Fluvial or lakeshore Shu et al. ( 2018 ) Mesozoic Lower Triassic
Journal Article
Journal: Geology
Published: 30 March 2020
Geology (2020) 48 (6): 609–613.
... include, from bottom to top, the Liujiagou Formation, Heshanggou Formation, Ermaying Formation, Tongchuan Formation, and Yanchang Formation ( Deng et al., 2018 ; Zheng et al., 2018 ). Figure 1. Geographic map of study area. (A) Location of Ordos Basin in northwestern China (modified from Sun...
FIGURES
Journal Article
Journal: Interpretation
Published: 23 July 2020
Interpretation (2020) 8 (4): SP71–SP80.
... (Figure  2 ). The Triassic is 800–950 m in thickness (2625–3117 ft), and it is dominated by red mudstones, sandstones, partial conglomerates, and calcareous sandstones. The Triassic can be vertically divided into the Liujiagou Formation, Heshanggou Formation, and Ermaying Formation from bottom to top...
Journal Article
Journal: AAPG Bulletin
Published: 15 January 2021
AAPG Bulletin (2021) 105 (1): 1–28.
... = Middle Jurassic Yanan Formation; P 1 t = lower Permian Taiyuan Formation; P 2 h = middle Permian Shihezi Formation; P 3 q = upper Permian Shiqianfeng Formation; T 1 l–T 2 z = Lower Triassic Liujiagou to Middle Triassic Zhifang Formation. ...
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Journal Article
Journal: Geophysics
Published: 23 October 2019
Geophysics (2019) 84 (6): R947–R961.
... physics to describe all of the observed events. Because the receiver well in VSP geometry is close to the reservoir and the log data can provide detailed information about the geologic formations, it is an adequate approach to measure the difference between the observed and calculated VSP data...
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Journal Article
Published: 30 July 2008
Geological Magazine (2008) 145 (6): 868–885.
.... The Lower Jurassic Ahe (Shalitashi) and Yangxia (Kangsu) formations consist mainly of grey sandstones and dark grey mudstones intercalated with black carbonaceous mudstones and coals containing plants, miospores, megaspores and acritarchs ( Liu, 2003 ); the thickness varies from 523 to 1160 m. The Middle...
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