Qiong-Yan Yang

China University of Geosciences (Beijing)

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M. Santosh

University of Adelaide

Toshiaki Tsunogae

University of Johannesburg

E. Shaji

University of Kerala

Xueming Teng

China Geological Survey

Sohini Ganguly

Goa University

Chuansong He

China Earthquake Administration

M. Ram Mohan

National Geophysical Research Institute

M. Satyanarayanan

National Geophysical Research Institute

S.G. Dhanil Dev

University of Kerala

Li Tang

Chongqing Medical University

Cooperative Institutions

China University of Geosciences (Beijing)

University of Adelaide

University of Kerala

University of Calcutta

National Geophysical Research Institute

Council of Scientific and Industrial Research

China University of Geosciences

University of Tsukuba

Yonsei University

State Key Laboratory of Geological Processes and Mineral Resources

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Paleoproterozoic arc magmatism in the North China Craton: No Siderian global plate tectonic shutdown

Gondwana Research (2014)

Qiong-Yan Yang M. Santosh

Continental arc

Back-arc basin

Geochronology

Charnockite

10.1016/j.gr.2014.08.005

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Citations (159)

Ultrahigh-temperature metagabbros from Wynad: Implications for Paleoproterozoic hot orogen in the Moyar Suture Zone, southern India

Journal of Asian Earth Sciences (2016)

Minami Yano Toshiaki Tsunogae M. Santosh Qiong-Yan Yang E. Shaji

Hornblende

Protolith

Ilmenite

10.1016/j.jseaes.2016.04.024

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Citations (11)

Late Palaeoproterozoic post-collisional magmatism in the North China Craton: geochemistry, zircon U–Pb geochronology, and Hf isotope of the pyroxenite–gabbro–diorite suite from Xinghe, Inner Mongolia

International Geology Review (2014)

Qiong-Yan Yang M. Santosh Guochen Dong

The North China Craton (NCC) witnessed a prolonged subduction–accretion history from the early to late Palaeoproterozoic, culminating with final collision at ca. 1.85 Ga and assembling the continental blocks into the cratonic framework. Subsequently, widespread post-collisional magmatism occurred, particularly along the Trans-North China Orogen (TNCO) that sutures the Eastern and Western blocks of the NCC. Here we present petrological, geochemical, and zircon U–Pb geochronological and Lu–Hf data from a pyroxenite (websterite)–gabbro–diorite suite at Xinghe in Inner Mongolia along the northern segment of the TNCO. The internal structures and high Th/U values of the zircons from the gabbro–diorite suite suggest magmatic crystallization. LA-ICP-MS U–Pb age data on three gabbros and one diorite from the suite yield emplacement ages of 1786.1 ± 4.8, 1783 ± 15 ,1754 ± 16 and 1767 ± 13 Ma, respectively. The εHf(t) shows mostly positive values (up to 5.8), with the lowest value at –4.2, suggesting that the magma was derived from dominantly juvenile sources. The generally low SiO2 and high MgO values, and other trace element features of the Xinghe suite are consistent with fractionation from a mantle-derived magma with a broadly E-MORB affinity, with no significant crustal contamination. Recent studies clearly establish that the major magmatic pulse associated with rifting of the NCC within the Columbia supercontinent occurred in the late Mesoproterozoic at ca. 1.3–1.2 Ga associated with mantle plume activity. This, together with the lack of robust geochemical imprints of rift-related magmatism in the Xinghe suite, prompts us to suggest a tectonic model that envisages magma genesis associated with post-collisional extension during slab break-off, following the westward subduction of the Eastern Block and its collision with the Western Block. The resulting asthenospheric upwelling and heat input might have triggered the magma generation from a heterogeneous, subduction-modified sub-lithospheric mantle source for the Xinghe rocks, as well as for similar late Palaeoproterozoic suites in the TNCO.

Diorite

Geochronology

Supercontinent

10.1080/00206814.2014.908421

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Citations (14)

Discovery of Neoarchean suprasubduction zone ophiolite suite from Yishui Complex in the North China Craton

Gondwana Research (2015)

M. Santosh Xueming Teng Xiao‐Fang He Li Tang Qiong-Yan Yang

Hornblende

Amphibole

10.1016/j.gr.2015.10.017

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Citations (145)

Greenstone belts and their mineral endowment: Preface

Geoscience Frontiers (2017)

Sohini Ganguly Qiong-Yan Yang

Endowment

Greenstone belt

10.1016/j.gsf.2017.11.001

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Citations (5)

High-grade metamorphism during Archean–Paleoproterozoic transition associated with microblock amalgamation in the North China Craton: Mineral phase equilibria and zircon geochronology

Lithos (2015)

Qiong-Yan Yang M. Santosh Toshiaki Tsunogae

Geochronology

10.1016/j.lithos.2015.11.018

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Citations (31)

Extensional collapse of the Gondwana orogen: Evidence from Cambrian mafic magmatism in the Trivandrum Block, southern India

Geoscience Frontiers (2017)

Qiong-Yan Yang Sohini Ganguly E. Shaji Yunpeng Dong V. Nandakumar

The assembly of Late Neoproterozoic–Cambrian supercontinent Gondwana involved prolonged subduction and accretion generating arc magmatic and accretionary complexes, culminating in collision and formation of high grade metamorphic orogens. Here we report evidence for mafic magmatism associated with post-collisional extension from a suite of gabbroic rocks in the Trivandrum Block of southern Indian Gondwana fragment. Our petrological and geochemical data on these gabbroic suite show that they are analogous to high Fe tholeiitic basalts with evolution of the parental melts dominantly controlled by fractional crystallization. They display enrichment of LILE and LREE and depletion of HFSE with negative anomalies at Zr–Hf and Ti corresponding to subduction zone magmatic regime. The tectonic affinity of the gabbros coupled with their geochemical features endorse a heterogeneous mantle source with collective melt contributions from sub-slab asthenospheric mantle upwelling through slab break-off and arc-related metasomatized mantle wedge, with magma emplacement in subduction to post-collisional intraplate settings. The high Nb contents and positive Nb–Ta anomalies of the rocks are attributed to inflow of asthenospheric melts containing ancient recycled subducted slab components and/or fusion of subducted slab materials owing to upwelling of hot asthenosphere. Zircon grains from the gabbros show magmatic crystallization texture with low U and Pb content. The LA-ICPMS analyses show 206Pb/238U mean ages in the range of 507–494 Ma suggesting Cambrian mafic magmatism. The post-collisional mafic magmatism identified in our study provides new insights into mantle dynamics during the waning stage of the birth of a supercontinent.

Supercontinent

Asthenosphere

Lile

10.1016/j.gsf.2017.12.002

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Citations (16)

Erratum for “Corrigendum to “Gold metallogeny associated with craton destruction: A geophysical perspective from the North China Craton” published in Ore Geology Reviews, 2016, Vol. 75, pp. 29–41”

Ore Geology Reviews (2017)

Chuansong He M. Santosh Qiong-Yan Yang

Metallogeny

10.1016/j.oregeorev.2017.02.010

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