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Precambrian Research
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#1Jun-Sheng Lu (Northwest University (United States))H-Index: 1
#2ZHAIMingguo (CAS: Chinese Academy of Sciences)H-Index: 59
Last. Xiaoping Long (Northwest University (United States))H-Index: 32
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Abstract The Taihua metamorphic complex along the southern margin of the North China Craton (NCC) mainly consists of tonalite–trondhjemite–granodiorite (TTG) gneisses, amphibolites, metapelites, marbles, quartzites, and banded iron formations (BIFs). The region has been subjected to upper amphibolite–granulite facies metamorphism and intense deformation, with NWW–SEE striking gneissosity. Garnet porphyroblasts from metapelites of the Lushan area are chemically zoned. Based on petrological and ge...
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#1H. WaboH-Index: 4
#2M.O. de KockH-Index: 7
Last. G.A. BelyaninH-Index: 5
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Abstract The Rustenburg Layered Suite (RLS) of the Bushveld Complex, the largest ultramafic–mafic-layered intrusion on Earth, is associated with satellite intrusions and marginal sills with which it shares a common parental heritage (i.e. the B1, B2 and B3 parental magmas). The duration of the RLS emplacement is regarded as a focused event of less than 1 million years. Some of the more primitive satellite intrusions and marginal sills have been interpreted to predate the main Bushveld Complex. T...
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#1Jin Liu (SYSU: Sun Yat-sen University)H-Index: 4
#2Jian Zhang (SYSU: Sun Yat-sen University)H-Index: 5
Last. Xiao Wang (SYSU: Sun Yat-sen University)
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Abstract The Jiao–Liao–Ji belt (JLJB) underwent back-arc or intra-continental rifting during the early Palaeoproterozoic but the underlying mechanism remains unclear. To address this issue, this study focuses on the petrogenesis of widespread Palaeoproterozoic granitoids on Liaodong Peninsula, China. Zircon U–Pb dating and geochemical and Hf isotopic data suggest that these granitoids were formed at ca. 2.2 Ga and they can be divided into A-type and adakitic granites. The A-type granites have re...
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#1Yi ZouH-Index: 3
#2ZHAIMingguoH-Index: 59
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Abstract The pelitic granulites along the Paleoproterozoic Jiao-Liao-Ji belt (JLJB) are dominated by cordierite/sillimanite-bearing low- to medium-pressure (LMP) conditions. Recent studies have recognized a few typical high-pressure (HP) pelitic granulites without retrograde cordierite from the Jiaobei terrane, the southern part of the JLJB. The relationship between the dominant LMP and rare HP pelitic granulites is not well constrained, and whether the LMP types are retrograde products of the H...
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#1Brennan O'ConnellH-Index: 3
#1Brennan O'Connell (University of Melbourne)H-Index: 1
Last. Noah J. PlanavskyH-Index: 40
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Abstract The Cryogenian Angepena Formation (ca. 650 Ma) of South Australia records deposition in a peritidal environment equivalent to, and landward of the Balcanoona reef complex, and offers valuable insights into shallow marine chemistry during the nonglacial interlude between two global ice ages. The sedimentary facies comprise an iron-rich marine red bed succession and include red mudcracked dolomitic shales, tepee dolostone, crossbedded intraclastic ooid grainstone, and tepee-related sheet ...
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#1Dongya Zhu (Sinopec)H-Index: 10
#2Quanyou Liu (Sinopec)H-Index: 10
Last. Jingbin Wang (Sinopec)
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Abstract The ancient Ediacaran Dengying Formation consists of microbialites with unusually high porosity that represent a large proportion of the Weiyuan-Anyue gas reservoirs in southwestern China’s Sichuan Basin. However, a clear model for the development and preservation of these microbialite reservoirs has yet not been determined. We used samples from outcrops and borehole cores to characterize these microbialites and propose a model for early development and subsequent reservation of their p...
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Abstract Granitic partial melts are generally thought to significantly weaken the orogenic crust and, ultimately, lead to the collapse of an orogen. Studies from different orogens have shown that the syn-melt deformation behaviour at the orogenic scale is, however, more complex. In addition, once fully crystalline, granitic material strengthens the crust. Linking the evolution from melt-present to melt-absent deformation at the scale of the orogen is a challenging but necessary task if one wishe...
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#1Peng Liou (CAS: Chinese Academy of Sciences)H-Index: 1
Last. ZHAIMingguoH-Index: 59
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Abstract Caozhuang Group (or Caozhuang supracrustal sequence) in Eastern Hebei, North China Craton (NCC) may represent the oldest supracrustal unit of China. Abundant Eoarchean and Paleoarchean detrital zircons (up to 3.88 Ga) in paragneisses of Caozhuang Group provide valuable memories of the earliest crustal evolution of China. There still remains confusion about the deposition time of the Caozhuang group, the origin and the igneous host rocks of their detrital zircons, and the earliest crusta...
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#1Hugo K.H. Olierook (Curtin University)H-Index: 8
#2Milo Barham (Curtin University)H-Index: 6
Last. Anna Vass
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Abstract Correlations across the once-contiguous North Atlantic region remain challenging, particularly for pre-Caledonian packages. Here, we present new zircon U-Pb and Hf isotope data from five metasedimentary samples and three granites from East Greenland to assess the age and provenance of Meso- to Neoproterozoic successions in this area, and to evaluate their correlatives across the North Atlantic region. Detrital zircon U-Pb data yield maximum depositional ages of 936 ± 15 Ma (2σ) that ind...
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#1Jin-Xiong ChengH-Index: 1
#2LIWuxianH-Index: 36
Last. Chong-Jin PangH-Index: 7
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Abstract Neoproterozoic bimodal volcanic rocks are widespread in the South China Block and provide information on crust–mantle interaction, the thermal and chemical status of the deep mantle, and the growth and reworking of continental crust. In this paper, we present sensitive high-resolution ion microprobe (SHRIMP) zircon U–Pb ages and whole-rock geochemistry for the Lushan bimodal volcanic rocks in northern Jiangxi Province, South China Block. Our SHRIMP dating indicates that the Lushan bimod...
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Top fields of study
Geomorphology
Geology
Craton
Geochemistry
Zircon