2016
DOI: 10.1111/iar.12146
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Petrogenesis and geodynamic significance of the Ganhe Formation lavas, eastern Great Xing'an Range, China: Evidence from geochemistry and geochronology

Abstract: Mesozoic volcanic rocks are widespread throughout the Great Xing'an Range of northeastern China. However, there has been limited investigation into the age and petrogenesis of the Mesozoic volcanics in the eastern Great Xing'an Range. According to our research, the volcanic rocks of the Dayangshu Basin, eastern Great Xing'an Range are composed mainly of trachybasalt, basaltic andesite, and basaltic trachyandesite, with minor intermediate-basic pyroclastic rocks. In this study, the geochemistry and geochronolog… Show more

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Cited by 9 publications
(5 citation statements)
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“…The mechanism that caused such a widespread extensional environment during the Early Cretaceous remains controversial. Two main models have been proposed: (a) post‐orogenic lithospheric extension related to the closure of the Mongol–Okhotsk Ocean (Fan et al, ; Gou et al, ; Gou, Sun, Ren, et al, ; Sun, Ren, et al, ; Wang et al, ; Ying et al, ) and (b) subduction of the Palaeo‐Pacific Plate and subsequent lithospheric delamination (Dong et al, ; Gu et al, ; Wu et al, ; Zhang, Zhou, et al, , Zhang et al, ). The Great Xing'an Range has been previously considered to be controlled only by the rollback of the Palaeo‐Pacific Plate, whereas some researchers suggest it was constrained by both of the Mongol–Okhotsk and Pacific regimes in recent years (Tang et al, ; Wang et al, ; Xu et al, ).…”
Section: Discussionmentioning
confidence: 99%
“…The mechanism that caused such a widespread extensional environment during the Early Cretaceous remains controversial. Two main models have been proposed: (a) post‐orogenic lithospheric extension related to the closure of the Mongol–Okhotsk Ocean (Fan et al, ; Gou et al, ; Gou, Sun, Ren, et al, ; Sun, Ren, et al, ; Wang et al, ; Ying et al, ) and (b) subduction of the Palaeo‐Pacific Plate and subsequent lithospheric delamination (Dong et al, ; Gu et al, ; Wu et al, ; Zhang, Zhou, et al, , Zhang et al, ). The Great Xing'an Range has been previously considered to be controlled only by the rollback of the Palaeo‐Pacific Plate, whereas some researchers suggest it was constrained by both of the Mongol–Okhotsk and Pacific regimes in recent years (Tang et al, ; Wang et al, ; Xu et al, ).…”
Section: Discussionmentioning
confidence: 99%
“…The Jiufenghua Formation rocks are mainly composed of sandstone, pebbly sandstone, tuff sandstone, and mudstone intercalated with volcanic breccia and basalt. The Ganhe Formation rocks consist of basalt, basaltic andesite, and trachyandesite and likely formed during 123 to 82 Ma (Gu et al, ; Y. F. Li et al, ). The Fuminghe Formation rocks contain dacite, rhyolite, and rhyolitic tuff, and these rocks have been dated to form during 108 to 98 Ma (Y. F. Li et al, ; Z. C. Zhang, Mao, et al, ).…”
Section: Discussionmentioning
confidence: 99%
“…are mainly composed of sandstone, pebbly sandstone, tuff sandstone, and mudstone intercalated with volcanic breccia and basalt. The Ganhe Formation rocks consist of basalt, basaltic andesite, and trachyandesite and likely formed during 123 to 82 Ma (Gu et al, 2016;Y. F. Li et al, 2013).…”
Section: Major and Trace Element Geochemistrymentioning
confidence: 99%
“…The extensional environment in the Early Cretaceous period is currently being debated, and the main points of views are as follows: (1) it was related to the post-closure extensional environment of the Paleo-Asian Ocean; (2) it was linked to the extensional environment of the Paleo-Pacific Ocean [13,50]; and (3) it was associated with the post-closure extensional environment of the Mongol-Okhotsk Ocean [14,37,38]. Northeast China was mainly under the dual influence of the Paleo-Asian Ocean and the Mongol-Okhotsk Ocean during the Late Permian-Early Triassic period [15,34], while the Paleo-Asian Ocean closed along the Solonker-Xar Moron River-Changchun-Yanji suture zone in the Late Permian-Early Triassic period, forming a large-scale magmatic belt trending nearly east-west on the Songnen Massif [18].…”
Section: Tectonic Backgroundmentioning
confidence: 99%