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Yinkeng Formation

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(a)  Paryphella transversa  Liao, 1984  from Bed 26 of the lower <span class="search-highlight">Yinkeng</span> Fo...
Published: 01 May 2006
Figure 7. (a) Paryphella transversa Liao, 1984 from Bed 26 of the lower Yinkeng Formation (latest Changhsingian), Meishan section (Quarry A) of Zhejiang, South China, UWA133456, ventral view of an incomplete ventral valve with ears broken. (b) Paryphella nasuta Liao, 1984 from Bed 26
Image
(a–c, i)  Tethyochonetes soochowensis  ( Chao, 1928 ) from Bed 26 of the lo...
Published: 01 May 2006
Figure 5. (a–c, i) Tethyochonetes soochowensis ( Chao, 1928 ) from Bed 26 of the lower Yinkeng Formation (latest Changhsingian) of the Meishan section (Quarry Z), Zhejiang, South China. (a) UWA133439, ventral view of a ventral valve, × 6. (b) UWA133441, ventral view of a ventral internal mould
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Temporal pattern of mono-aromatic  des -A-oleananes (MADAO) and phenol indi...
Published: 30 August 2021
Figure 2. Temporal pattern of mono-aromatic des -A-oleananes (MADAO) and phenol indices across the Changxing and Yinkeng Formations at Meishan, southeastern China. (A) Ratio of MADAO to n -alkanes. (B) Ratio of phenols to n -alka(e)nes. Note the different scale for the upper part of the column
Image
Late Permian–Early Triassic sedimentation rates and (inset) paleogeography ...
Published: 01 November 2010
— Lehrmann et al. (2006) ; Ch—Changhsing(ian), D—Dienerian, Gr—Griesbachian, Sm—Smithian, W—Wuchiapingian, Dg—Dalong Formation, H—Helongshan Formation, Lt—Longtan Formation, Y—Yinkeng Formation.
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(a) The final 3D smooth geologic model from the surface to a depth of 3.0 k...
Published: 24 December 2012
geologic model, from south to north, showing major ore-bearing strata [Triassic Yinkeng formation, the light purple in (c) and Devonian Wutong formation, silver gray in (d)] and the intrusive.
Image
Paryphella orbicularis  Liao, 1980 a   from Bed 27 of the lower <span class="search-highlight">Yinkeng</span> For...
Published: 01 May 2006
Figure 6. Paryphella orbicularis Liao, 1980 a from Bed 27 of the lower Yinkeng Formation (earliest Griesbachian), Meishan section (Quarry D) of Zhejiang, South China. (a–g) UWA133447–453, ventral views of eight incomplete ventral valves: (a, b) showing pyrite grains on the shell; (c
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Figure  2 —Geological map of the northwestern Chaohu and the locations of t...
Published: 01 January 2006
Devonian; C 1 , Lower Carboniferous (Mississippian); C 2 , Upper Carboniferous (Pennsylvanian); P 1 , Lower Permian; P 2 , Middle Permian; P 3 , Upper Permian; T 1 y, Lower Triassic Yinkeng Formation; T 1 h, Lower Triassic Helongshan Formation; T 1 n, Lower Triassic Nanlinghu Formation; T 2 , Middle
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(A) Geological map of Chaohu and the adjacent region in Anhui Province, eas...
Published: 14 May 2019
2 l—Longtan Formation (Guadalupian), P 3 d—Dalong Formation of (Ludlow-Pridoli), T 1 y—Yinkeng Formation (Lower Triassic), T 1 h—Helongshan Formation (Lower Triassic), T 1 b—Biandanshan Formation (Lower Triassic), T 2 y—Yueshan Formation (Middle Triassic), Cz—Cenozoic strata.
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Representative outcrop photos of the Gufeng <span class="search-highlight">Formation</span> in the Pingdingshan s...
Published: 14 May 2019
interbedded with thin sandstone in the lower part of the Longtan Formation. (J) Gray sandstone in the upper part of the Longtan Formation. (K) Gray cherty shale of the Dalong Formation. (L) Gray muddy limestone of the Yinkeng Formation.
Journal Article
Published: 01 May 2006
Geological Magazine (2006) 143 (3): 301–327.
...Figure 7. (a) Paryphella transversa Liao, 1984 from Bed 26 of the lower Yinkeng Formation (latest Changhsingian), Meishan section (Quarry A) of Zhejiang, South China, UWA133456, ventral view of an incomplete ventral valve with ears broken. (b) Paryphella nasuta Liao, 1984 from Bed 26...
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Journal Article
Journal: Geology
Published: 15 July 2021
Geology (2021) 49 (11): 1289–1294.
... defined as the global stratotype section and point (GSSP) for the PTB ( Yin et al., 2001 ) and the base of the Changhsingian Stage ( Fig. 1C ; Jin et al., 2006 ). The marine sequence is ascendingly composed of the Late Permian Lungtan Formation, the Changhsing Formation, and the Early Triassic Yinkeng...
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Journal Article
Journal: Geology
Published: 30 August 2021
Geology (2021) 49 (12): 1489–1494.
...Figure 2. Temporal pattern of mono-aromatic des -A-oleananes (MADAO) and phenol indices across the Changxing and Yinkeng Formations at Meishan, southeastern China. (A) Ratio of MADAO to n -alkanes. (B) Ratio of phenols to n -alka(e)nes. Note the different scale for the upper part of the column...
FIGURES
Journal Article
Journal: Geology
Published: 01 April 2017
Geology (2017) 45 (4): 343–346.
... ; Jin et al., 2006 ). The Late Permian Changhsing Formation in this section is composed of micritic limestone and the overlying Yinkeng Formation consists of parallel-laminated calcareous mudstone with intercalations of thin-bedded limestone ( Fig. 2 ). These rocks were deposited in middle-upper slope...
Journal Article
Journal: Geophysics
Published: 24 December 2012
Geophysics (2013) 78 (1): B25–B35.
... geologic model, from south to north, showing major ore-bearing strata [Triassic Yinkeng formation, the light purple in (c) and Devonian Wutong formation, silver gray in (d)] and the intrusive. ...
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Journal Article
Journal: GSA Bulletin
Published: 01 January 2017
GSA Bulletin (2017) 129 (1-2): 229–243.
... with numerous clay ash layers of the Yinkeng Formation. Integration of lithofacies and paleoecologic features shows that the Permian−Triassic succession represents a deepening-up cycle with depositional settings ranging from upper ramp to lower ramp or offshore shelf ( Chen et al., 2007 , 2015 ; S. Tian et al...
Journal Article
Published: 01 January 2006
Journal of Paleontology (2006) 80 (1): 146–161.
... Devonian; C 1 , Lower Carboniferous (Mississippian); C 2 , Upper Carboniferous (Pennsylvanian); P 1 , Lower Permian; P 2 , Middle Permian; P 3 , Upper Permian; T 1 y, Lower Triassic Yinkeng Formation; T 1 h, Lower Triassic Helongshan Formation; T 1 n, Lower Triassic Nanlinghu Formation; T 2 , Middle...
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Journal Article
Published: 01 March 2021
Journal of Paleontology (2021) 95 (2): 305–319.
..., South China Block) ( Fig. 1 ). Here, a nearly complete sedimentary succession is exposed, ranging from the upper part of the Yinkeng Formation (Early Triassic) to the Dongmaanshan Formation (early Middle Triassic). For the Early Triassic, three formations can be recognized in ascending order...
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Journal Article
Published: 01 September 2007
Journal of Paleontology (2007) 81 (5): 1009–1019.
...) from the Yinkeng Formation, Meishan section, Changxing, Zhejiang, China, and to C. griesbachi of Ling (1988) from the Jinjiling Formation, Jinjiling, Zhen'an, Shanxi, China, in outline, size, hinge, beak, conspicuous and narrow byssal notch, and weak concentric lines. Pseudomonotis aff...
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Journal Article
Journal: GSA Bulletin
Published: 14 May 2019
GSA Bulletin (2020) 132 (1-2): 130–148.
... 2 l—Longtan Formation (Guadalupian), P 3 d—Dalong Formation of (Ludlow-Pridoli), T 1 y—Yinkeng Formation (Lower Triassic), T 1 h—Helongshan Formation (Lower Triassic), T 1 b—Biandanshan Formation (Lower Triassic), T 2 y—Yueshan Formation (Middle Triassic), Cz—Cenozoic strata. ...
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Journal Article
Journal: GSA Bulletin
Published: 19 June 2020
GSA Bulletin (2021) 133 (1-2): 362–378.
... ). These earlier studies of the Chaohu-area Lower Triassic provide the basis for the exceptionally high-resolution geochronological framework used in the present study. The West Pingdingshan section contains the Yinkeng, Helongshan, and basal Nanlinghu Formations, whereas the North Majiashan and South Majiashan...
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