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Shexing Formation

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Photomicrograph of carbonates and sandstones from the <span class="search-highlight">Shexing</span> <span class="search-highlight">Formation</span>. (A...
Published: 08 April 2020
Figure 8. Photomicrograph of carbonates and sandstones from the Shexing Formation. (A) ostracod-bearing micritic grainstone from the middle member; (B) weakly recrystallized bioclastic grainstone from the upper member; (C–F) Sandstones from the lower, middle, upper, and uppermost members
Image
Detrital composition of sandstones from the <span class="search-highlight">Shexing</span> <span class="search-highlight">Formation</span> (classificati...
Published: 08 April 2020
Figure 10. Detrital composition of sandstones from the Shexing Formation (classification and compositional fields are after Garzanti, 2019 ). Arrows in the Lm–Lv–Ls diagram outline the compositional trend up section. Q—quartz; F—feldspar; L—lithic fragments; Lm—metamorphic; Lv—volcanic; Ls
Journal Article
Journal: GSA Bulletin
Published: 08 April 2020
GSA Bulletin (2020) 132 (11-12): 2432–2454.
...Figure 8. Photomicrograph of carbonates and sandstones from the Shexing Formation. (A) ostracod-bearing micritic grainstone from the middle member; (B) weakly recrystallized bioclastic grainstone from the upper member; (C–F) Sandstones from the lower, middle, upper, and uppermost members...
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Stratigraphic logs of the uppermost Chumulong, Takena, and <span class="search-highlight">Shexing</span> Formatio...
Published: 08 April 2020
Figure 4. Stratigraphic logs of the uppermost Chumulong, Takena, and Shexing Formations. Sedimentary structures, fossils, sample locations, paleocurrent directions, and positions of the field photo are shown.
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Stratigraphic logs of the uppermost Chumulong, Takena, and <span class="search-highlight">Shexing</span> Formatio...
Published: 08 April 2020
Figure 4. Stratigraphic logs of the uppermost Chumulong, Takena, and Shexing Formations. Sedimentary structures, fossils, sample locations, paleocurrent directions, and positions of the field photo are shown.
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(A) Panorama of section P2. Strata of the Takena <span class="search-highlight">Formation</span> are in conformab...
Published: 08 April 2020
Figure 6. (A) Panorama of section P2. Strata of the Takena Formation are in conformable contact with both underlying Chumulong and overlying Shexing Formations. Microphotographs from B to I illustrate facies changes from base to top of the Takena Formation; (B) calcareous sandstone; (C) sandy
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U–Pb age spectra and age versus ε Hf (t) plot of detrital zircons in sandst...
Published: 08 April 2020
Figure 11. U–Pb age spectra and age versus ε Hf (t) plot of detrital zircons in sandstones of the Shexing Formation. Fields for igneous rocks in the Gangdese arc and north Lhasa are shown for comparison (data summarized by Hou et al., 2015 ). Note that the scale on the X axis is different
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Cretaceous paleogeographic evolution and topographic growth of the Lhasa bl...
Published: 08 April 2020
the Duoni Formation, the Damxung Conglomerate, and the lower–middle members of the Shexing Formation. Turbidites derived from the Lhasa block reached the Xigaze Forearc Basin from ca. 113–110 Ma ( Wang et al., 2017a ). (B) Late Albian–Early Cenomanian (ca. 108–96 Ma): thermal subsidence of north Lhasa
Journal Article
Journal: GSA Bulletin
Published: 11 April 2022
GSA Bulletin (2022)
... is related to the northward subduction of Neo-Tethys oceanic lithosphere beneath Eurasia (Fig. 1A; Mo et al., 2007; Zhu et al., 2018). In the Maxiang area, in the central Lhasa terrane, the Shexing volcano-sedimentary sequence conformably overlies the Takena Formation, and it is unconformably overlain...
Journal Article
Journal: GSA Bulletin
Published: 30 October 2020
GSA Bulletin (2021) 133 (5-6): 1283–1300.
... and upper clastic member of the Takena Formation is divided into the Takena and the Shexing Formations by Wang et al. (2020) , respectively. Back stripping analysis based on stratigraphic data indicates accelerating tectonic subsidence during deposition of the Takena Formation and the lower–middle members...
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Journal Article
Journal: Economic Geology
Published: 23 November 2020
Economic Geology (2021) 116 (1): 29–46.
...) Wu, S., et al. (2014 , 2016 ) Chongjiang 89.97 29.62 45 Mt @ 0.4% Cu, 0.02% Mo Late Cretaceous Shexing Formation volcanic-sedimentary rocks Eocene granitoids batholith (~50 Ma) Monzogranite pluton (14.8 ± 0.2 Ma) Intermineralization porphyry (15.6 ± 0.5–14.0 ± 0.2 Ma) Porphyry Cu-Mo...
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Series: Geological Society, London, Special Publications
Published: 08 October 2019
DOI: 10.1144/SP483.14
EISBN: 9781786204523
... data of detrital zircons from the uppermost Shexing Formation sandstones in Maxiang are available at https://doi.org/10.6084/m9.figshare.c.4267850 Convergence between the Indian and Asian continents is one of the major tectonic events that has shaped the Earth since the Cretaceous. It involved...
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Journal Article
Published: 01 April 2017
Journal of Foraminiferal Research (2017) 47 (2): 188–207.
... fluvial Shexing Formation (Leier et al., 2007). Orbitolinid-bearing limestone beds occur in the middle of the Takena Formation. Samples from two sections (the Jiarong and Laxue sections) were studied. In the central Lhasa subterrane, Carboniferous metasedimentary deposits, Permian limestones, Jurassic...
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Journal Article
Journal: GSA Bulletin
Published: 14 September 2017
GSA Bulletin (2018) 130 (1-2): 307–330.
..., in the Oiyug Basin into temporal and regional context. The ∼240-m-thick Paleocene–Eocene Nianbo Formation ( Fig. 2 ) unconformably overlies the lower Upper Cretaceous Shexing Formation in this section. Nearby, the Nianbo Formation conformably to disconformably overlies the Paleocene Dianzhong Formation...
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