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Yanji Group

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Journal Article
Journal: Interpretation
Published: 01 March 2019
Interpretation (2019) 7 (2): T331-T345.
... is discontinuous ( Wang et al., 2014 ). The protolith of Middle-Upper Ordovician (also known as the Huangcaopo group) are intermediate-acid volcanic rock, the distribution of metamorphism of Middle-Upper Ordovician in different position is different from each other. The iron ore deposits, related to the basic...
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Journal Article
Journal: Interpretation
Published: 22 April 2015
Interpretation (2015) 3 (2): SL39-SL61.
... Group metamorphic basement ( Wang, W. B. et al., 1996 ) and Paleozoic-Mesozoic uniform cover. During Sinian-Silurian times, the ore district experienced sedimentation in a stable epicontinental environment that resulted in limestone and argillaceous limestone intercalated with sandstone and mudstone...
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Journal Article
Journal: Geophysics
Published: 24 December 2012
Geophysics (2013) 78 (1): B25-B35.
... with the geologists’ expertise and intuition for the site. Local geologists can always help to precisely infer the dips and extent of geologic units, and also help to add or delete bodies when the model was geologically unreasonable. The final initial model was simplified and grouped into 33 geologic units. Density...
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Journal Article
Journal: Economic Geology
Published: 01 August 2019
Economic Geology (2019) 114 (5): 897-915.
... for precious metal mineral exploration in the eastern part of the Solonker-Xar Moron-Changchun-Yanji suture zone between the Central Asian orogenic belt and the North China craton. This study also indicates that accurate and reproducible molybdenite Re-Os ages representing the true timing of ore deposition...
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Journal Article
Journal: Geology
Published: 01 June 2008
Geology (2008) 36 (6): 499-502.
...Leonid V. Danyushevsky; Trevor J. Falloon; Anthony J. Crawford; Sofia A. Tetroeva; Roman L. Leslie; Alicia Verbeeten Abstract We report here the compositions of primitive high-Mg adakite lavas from the Kadavu Island Group, Fiji. Two distinctive high-Mg adakite compositions are present on Kadavu...
FIGURES
Journal Article
Published: 21 March 2018
Canadian Journal of Earth Sciences (2018) 55 (5): 490-504.
...Zuo-Zhen Han; Hui Liu; Zhi-Gang Song; Wen-Jian Zhong; Chao Han; Mei Han; Qing-Xiang Du; Li-Hua Gao; Jing-Jing Li; Jun-Lei Yan In this study, we present detrital zircon U–Pb ages and Hf isotopic data and whole-rock geochemical data from meta-sedimentary rocks of the Jiangyu Group in eastern Jilin...
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Journal Article
Published: 05 June 2017
Geological Magazine (2018) 155 (7): 1542-1565.
... are dated at 167 Ma, and can be divided into two groups. The Group 1 dykes have variable Sr–Nd isotopic compositions and mid-ocean-ridge basalt (MORB-) like Th/U, Ba/Th and Ce/Pb ratios, whereas the Group 2 dykes have enriched Sr–Nd isotopic compositions and notable high Co, Cr, MgO and low Al 2 O 3...
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Journal Article
Published: 10 February 2010
Geological Magazine (2010) 147 (5): 737-749.
...; Borukayev, 1991 ; Natal'in, 1991 , 1993 ; Cao et al . 1992 ; Şengör, Natal'in & Burtman, 1993 ; Şengör & Natal'in, 1996 ). The Yanji-Heilongjiang Fault (F2 and F3, Fig. 1 a) was regarded as the suture zone developed between the Khanka-Jiamusi and Songliao massifs ( Fig. 1 a). However, Shao...
Journal Article
Journal: Lithosphere
Published: 04 November 2019
Lithosphere (2019) 11 (6): 804-820.
...-element analyses. The Jiamusi block is separated from the Songnen block to the west by the Mudanjiang-Yilan suture and from the Nadanhada terrane to the east by the Yuejinshan fault ( Fig. 1B ). The Jiamusi block is predominantly composed of the Mashan Group and two episodes of Paleozoic granitoids...
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Journal Article
Journal: PALAIOS
Published: 01 October 2012
PALAIOS (2012) 27 (10): 707-711.
... into the evolution of various important biological groups, such as angiosperms, insects, dinosaurs, pterosaurs, birds, and mammals ( Chang et al., 2003 ). Recently, significant progress has been made in the biostratigraphy, geochronology, and paleoenvironment of the entombing strata ( Fürsich et al., 2007 ; Chang...
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Journal Article
Journal: Lithosphere
Published: 18 April 2019
Lithosphere (2019) 11 (4): 488-506.
... al., 2011 ). The Yanbian region is located in the southeastern part of NE China ( Fig. 1B ). Tectonically, this region is transected by the Solonker–Xra Moron–Changchun–Yanji fault, which is regarded as the suture zone formed following the closure of the Paleo-Asian Ocean ( Xiao et al., 2003...
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Journal Article
Journal: GSA Bulletin
Published: 01 September 2014
GSA Bulletin (2014) 126 (9-10): 1275-1300.
..., dacite ( Figs. 3E–3F ; Fig. DR1D [see footnote 1 ]), and andesitic tuff, named the Baoerhantu Group, which are unconformably overlain by the Late Silurian–earliest Devonian Xibiehe Formation. Ophiolitic mélanges exist near Wude and Harihade-Chegendalai in the southern margin of the arc belt ( Fig. 2...
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Journal Article
Published: 05 April 2017
Geological Magazine (2017) 154 (5): 1171-1186.
.... 2015 ) (Ondor Sum–Yanji in some references). Sutures, which record the closure of the Palaeo-Asian Ocean (Han et al. 2012 ), are vital to the study of evolution of Palaeo-Asian Ocean. In recent years, some works have proved the location and extension of some sutures. Firstly, Xinlin–Xiguitu...
Journal Article
Published: 20 November 2018
Canadian Journal of Earth Sciences (2019) 56 (4): 380-398.
... of 87 Sr/ 86 Sr = 0.71025 and the Shin Etsu JNdi-1 standard value of 143 Nd/ 144 Nd = 0.512115, respectively. A total of 16 zircon grains were separated from hornblende pyroxenite sample WX-1 ( Table 2 ). They were divided into the following groups based on their ages ( Fig. 4...
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Journal Article
Published: 27 July 2017
Geological Magazine (2018) 155 (8): 1684-1704.
... consists mainly of medium- to high-grade metamorphic rocks, ophiolite, granite and minor clastic sediments. The HP/UHP metamorphic rocks, including eclogite, HP granulite and garnet peridotite, occur as lenses in the Altun Group metamorphic unit. The zircon U–Pb geochronology from eclogites and HP...
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Journal Article
Published: 15 March 2018
Journal of the Geological Society (2018) 175 (4): 679-693.
... that are invaded by multistage magmatism. As shown in Figure 2a , the exposed oldest sedimentary rocks in the XEG region belong to the Lengjiaxi Group and are mainly composed of grey silty slate, sericite slate and tuff–sandstone ( BGMRHN 1988 ). Detrital zircon U–Pb geochronological studies conducted by J.Q...
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Journal Article
Journal: Geosphere
Published: 11 September 2017
Geosphere (2017) 13 (5): 1664-1712.
...-Muztagh, Bi—Bitlis, BN—Bangong-Nujiang, DO—Denisov-Oktyabrsk, DS—Dabie Shan, J—Jinsha, M—Magnitogorsk, MO—Mongol-Okhotsk, PT—Paleo-Tethys, S—Sakmara, SJY—Solonker-Jilin-Yanji, TSYS—Tian Shan–Ying Shan, T—Turketsan, Td—Timanide, U—Ural, QS-Q—Qilian Shan–Qinling, ZNT—Zagros–Neo-Tethys. Figure after Yin...
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Journal Article
Journal: Geophysics
Published: 04 August 2016
Geophysics (2016) 81 (5): M71-M82.
...Yanjun Hao; Dinghui Yang; Yanjie Zhou ABSTRACT CO 2 capture and sequestration is a promising approach to reduce carbon emission and mitigate the greenhouse effect. We have developed a methodology combining reservoir simulation, rock-physics theory, and seismic modeling to simulate the CO 2...
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Journal Article
Journal: GSA Bulletin
Published: 01 November 2019
GSA Bulletin (2019)
Journal Article
Published: 16 October 2019
Journal of the Geological Society (2019) jgs2019-051.
... Paleozoic Sujiahe and Shangcheng groups and the Devonian Nanwan Formation and is characterized by volcaniclastic rocks with intercalations of quartzite and marble, which have undergone greenschist-facies metamorphism. They are overlain by a thick Carboniferous molasse succession and upper Triassic...
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