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| 1 | Emplacement age of the Tahe granite and its constraints on the tectonic nature of the Ergun block in the northern part of the Da Hinggan Range显示文摘Large-scale granitic plutons are exposed in the Ergun block in the northern part of the Da Hinggan Range, but their emplacement age and petrogenesis remain un-known. Of these plutons, the Tahe pluton is composed mainly of porphyritic syenogranite and monzogranite, with minor hornblende alkali feldspar granite and gabbro, which have affinities to post-orogenic granitoids. Laser-ablation Induc-tively Coupled Plasma Mass-spectroscope (LA-ICP-MS) analysis shows that the major rock types of the Tahe pluton formed at 494-480 Ma ago, indicating its emplacement in the Early Paleozoic. It is concluded, therefore, that the colli-sion between the Ergun and the Xing’an blocks ended in Early Paleozoic. Considering the geochronological data of the plutons in the adjacent areas, the Early Paleozoic evolu-tionary history of the Ergun block is similar to the central Mongolia and the Tuvino blocks in Mongolia, and the Ergun block should be a part of the accretionary continental mar-gin in the southern Siberian Craton. | GE Wenchun WU Fuyuan ZHOU Changyong Abdel Rahman A. A. | 2005 | Chinese Science Bulletin2005，50，18： | 111 |
| 2 | Porphyry Cu-Mo deposits in the eastern Xing’an-Mongolian Orogenic Belt: Mineralization ages and their geodynamic implications显示文摘东方 Xing “一 -- 蒙古(Xing-Meng ) Orogenic 带(XMOB ) 是斑岩铜(Cu ) 的重要区域之一在中国的铝(瞬间) 存款。然而,在矿化作用和他们的 geodynamic 意义的准确年龄的研究是很有限的。在这研究,从 Duobaoshan Cu 的 granodioritic 岩石扔, Daheishan 瞬间沉积物被选择做锆石虾 U-Pb 分析以便抑制他们的矿化作用年龄。Geochronological 数据显示矿化作用的二个事件发生在 Duobaoshan Cu 存款。与 Duobaoshan 斑岩 Cu 存款有关的 granodiorite 被形成在与 485 ± 8 妈的锆石 U-Pb 年龄早古生代,而与 Sankuanggou skarn 类型 Cu 存款有关的 granodiorites 是 emplaced 在里面,有锆石 U-Pb 的侏罗记 176 ± 3 和 177 ± 3 妈变老。在吉林省的 Daheishan 区域,与斑岩瞬间存款有关的 granodiorite 斑岩的炮兵阵地年龄在 178 ± 3 妈在 170 ± 3 妈,和 unmineralized monzogranite 被标明日期。因此, Cu 瞬间矿化作用的二个事件分别地在东方 XMOB 被开发,在 -485 妈和 -175 妈。基于地质的历史和 granitoids 的空间时间的分发在东北( NE )中国, Duobaoshan Cu 存款与 Xing 的碰撞有关,这被建议“and Erguna 堵住在早古生代,并且 Sankuanggou Cu 和 Daheishan 瞬间存款在侏罗记期间与Paleo和平的板的 subduction 有关。 | GE WenChun WU FuYuan ZHOU ChangYong ZHANG JiHeng | 2007 | Chinese Science Bulletin2007，52，24： | 108 |
| 3 | Mesozoic Bimodal Volcanic Suite in Zhalantun of the Da Hinggan Range and Its Geological Significance: Zircon U-Pb Age and Hf Isotopic Constraints显示文摘Mesozoic bimodal volcanic rocks of basaltic andesite and rhyolite are widely distributed in the Da Hinggan Range, but their petrogenetic relationships and geodynamic implications are rarely constrained. Detailed studies on doleritic and porphyry dikes in the Zhalantun area indicate that they display features of magma mixing, suggesting their coeval formation. In situ zircon U-Pb dating shows that the porphyry was emplaced in the Early Cretaceous with a 206Pb/238U age of 130±1 Ma. Zircons from the dolerite also yield an Early Cretaceous emplacement age of 124±2 Ma although some inherited zircons have been identified. These age results indicate that the Early Cretaceous was an important period of magmatism in the Da Hinggan Range. Zircons from porphyry are characterized by positive value of εHf(t) as high as 10.3±0.5 with Hf depleted mantle model age of 349–568 Ma, whereas magmatic zircons from the dolerite have εHf(t) value of 11.0±1.4 with Hf depleted mantel model age of 342–657 Ma, consistent with those from the porphyry. Considering other data on the geological evolution of this area, it is concluded that the mafic magma originated from the partial melting of Paleozoic enriched lithospheric mantle, whereas the felsic magma came from recycling of juvenile crust formed during the Paleozoic. Both of the protoliths are closely related to the subduction of the Paleo-Asian Ocean during the Paleozoic, indicating that the Paleozoic is an important period of large-scale crustal growth in the area. | ZHANG Jiheng GE Wenchun WU Fuyuan LIU Xiaoming | 2006 | Acta Geologica Sinica(English Edition)2006，80，1： | 52 |
| 4 | Subduction history of the Paleo-Pacific slab beneath Eurasian continent: Mesozoic-Paleogene magmatic records in Northeast Asia显示文摘This paper presents a review on the rock associations, geochemistry, and spatial distribution of Mesozoic-Paleogene igneous rocks in Northeast Asia. The record of magmatism is used to evaluate the spatial-temporal extent and influence of multiple tectonic regimes during the Mesozoic, as well as the onset and history of Paleo-Pacific slab subduction beneath Eurasian continent. Mesozoic-Paleogene magmatism at the continental margin of Northeast Asia can be subdivided into nine stages that took place in the Early-Middle Triassic, Late Triassic, Early Jurassic, Middle Jurassic, Late Jurassic, early Early Cretaceous, late Early Cretaceous, Late Cretaceous, and Paleogene, respectively. The Triassic magmatism is mainly composed of adakitic rocks,bimodal rocks, alkaline igneous rocks, and A-type granites and rhyolites that formed in syn-collisional to post-collisional extensional settings related to the final closure of the Paleo-Asian Ocean. However, Triassic calc-alkaline igneous rocks in the Erguna-Xing'an massifs were associated with the southward subduction of the Mongol-Okhotsk oceanic slab. A passive continental margin setting existed in Northeast Asia during the Triassic. Early Jurassic calc-alkaline igneous rocks have a geochemical affinity to arc-like magmatism, whereas coeval intracontinental magmatism is composed of bimodal igneous rocks and A-type granites. Spatial variations in the potassium contents of Early Jurassic igneous rocks from the continental margin to intracontinental region, together with the presence of an Early Jurassic accretionary complex, reveal that the onset of the PaleoPacific slab subduction beneath Eurasian continent occurred in the Early Jurassic. Middle Jurassic to early Early Cretaceous magmatism did not take place at the continental margin of Northeast Asia. This observation, combined with the occurrence of low-altitude biological assemblages and the age population of detrital zircons in an Early Cretaceous accretionary complex,indicates that a strike-slip tectonic regime existed between the continental margin and Paleo-Pacific slab during the Middle Jurassic to early Early Cretaceous. The widespread occurrence of late Early Cretaceous calc-alkaline igneous rocks, I-type granites, and adakitic rocks suggests low-angle subduction of the Paleo-Pacific slab beneath Eurasian continent at this time. The eastward narrowing of the distribution of igneous rocks from the Late Cretaceous to Paleogene, and the change from an intracontinental to continental margin setting, suggest the eastward movement of Eurasian continent and rollback of the PaleoPacific slab at this time. | Jie TANG Wenliang XU Feng WANG Wenchun GE | 2018 | Science China Earth Sciences2018，61，5： | 48 |
| 5 | Age assignment and geological significance of the “Budate Group” in the Hailar Basin显示文摘Age and nature of the Budate Group in the Hailar Basin are of great significance in studying the evolution of the Hailar Basin and the Xing'an-Mongolian Orogenic Belt(XMOB).Zircon U-Pb ages of eight volcanic rocks from the Budate Group and two basement granites in the Hailar Basin were reported in this study.The dating results indicated that the formation of these volcanic rocks was consistent with the emplacement of Late Paleozoic basement granite in age(356-290 Ma),i.e.,Early Carboniferous to Early Permian rather than Early Mesozoic.Combined with regional geology,it was concluded that the Budate Group is the component of the basement of the Hailar Basin,and these volcanic rocks were formed at an active continental margin,which is related to the closure of the Hegen Mountains suture zone.The captured Neoproterozoic zircons(814-873 Ma) were probably derived from the Neoproterozoic basement materials in the Ergun Block,implying the close genetic relationships between the Ergun Block(including the Hailar Basin) and the Siberian Block. | MENG Qi'An WAN ChuanBiao ZHU DeFeng ZHANG YanLong GE WenChun WU FuYuan | 2013 | Science China Earth Sciences2013，56，6： | 4 |
| 6 | Generation of Nb-enriched mafic rocks and associated adakitic rocks from the southeastern Central Asian Orogenic Belt:Evidence of crust-mantle interaction显示文摘Melting of subducting oceanic lithosphere and associated melt-mantle interactions in convergent plate margins require specific geodynamic environment that allows the oceanic slab to be abnormally heated.Here we focus on the Early Mesozoic mafic rocks and granite porphyry,which provide insights into slab melting processes associated with final closure of the Paleo-Asian Ocean.The granite porphyry samples are calc-alkaline and distinguished by high Sr contents,strong depletion of heavy rare earth elements,resulting in high(La/Yb);and Sr/Y ratios,and negligible Eu anomalies.Based on their high Na_(2)O and Mg O,low K_(2)O contents,positiveε_(Hf)(t)andε_(Nd)(t)and low(^(87)Sr/^(86)Sr)ivalues,we propose that the granite porphyry was likely derived from partial melting of subducting Paleo-Asian oceanic crust.The Nb-enriched mafic rocks are enriched in Rb,Th,U,Pb and K,and depleted in Nb,Ta,Ba,P and Ti,corroborating a subduction-related origin.Their heterogeneous Sr-Nd-Hf-O isotopic compositions and other geochemical features suggest that they were likely derived from partial melting of peridotitic mantle wedge interacted with oceanic slab-derived adakitic melts.Trace element and isotope modeling results and elevated zirconδ^(18)O values suggest variable subducting sediments input into the mantle wedge,dominated by terrigenous sediments.Synthesizing the widely-developed bimodal rock associations,conjugated dikes,thermal metamorphism,tectonic characteristics,paleomagnetic constraints,and paleogeographical evidence along the Solonke-Changchun suture zone,we identify a slab window triggered by slab break-off,which accounts for slab melting and formation of the Nb-enriched mafic rocks and associated adakitic granite porphyry in southeastern Central Asian Orogenic Belt. | Yan Jing Wenchun Ge M.Santosh Yu Dong Hao Yang Zheng Ji Junhui Bi Hongying Zhou Dehe Xing | 2022 | Geoscience Frontiers2022，13，2： | 2 |
| 7 | Geochemical and Sm-Nd isotopic characteristics of metabasites from central Hainan Island, south China and their tectonic significance显示文摘 | Li Xian-hua Zhou Hanwen Chung Sun-lin Ding Shijiang Liu Ying Lee Chi-Yu Ge Wenchun Zhang Yeming Zhang Renjie | 2002 | Island Arc2002，11，3： | 1 |
| 8 | Geochronology of the Phanerozoic granitoids in northeastern China显示文摘 | WU Fuyuan SUN Deyou GE Wenchun | 2011 | Journal of AsianEarth Sciences2011，41，1： | 1 |
| 9 | Age and origin of middle Neoproterozoic mafic magrnatism in southern Yangtze Block and relevance to the break-up of Rodinia显示文摘 | Zhou Jibin Li Xianhua Ge Wenchun | 2007 | Gondwana Research2007，，12： | 1 |
| 10 | Large-Scale Early Cretaceous Volcanic Events in the Northern Great Xing'an Range, Northeastern China 显示文摘 | Zhang Jiheng Ge Wenchun Wu Fuyuan | 2007 | Lithos2007，102，12： | 1 |
| 11 | Geochrono- logy of the Mesozoic Volcanic Rocks in the Great Xing'an Range,Northeastern China: Implications for Subduetion- induced Delamination 显示文摘 | Zhang Jiheng Gao Shan Ge Wenchun | 2010 | Chemical Geology2010，276，34： | 1 |
| 12 | Geochronology of the Mesozoic volcanic rocks in the Great Xing'an Range, northeastern China: Implications for subduction -induced delamination显示文摘 | Zhang Jiheng Gao Shah Ge Wenchun | 2010 | Chemical Geology2010，276，： | 1 |
| 13 | Geochronology and Geochemistry of Late Devonian I- and A-Type Granites from the Xing’an Block,NE China:Implications for Slab Break-off during Subduction of the Hegenshan-Heihe Ocean显示文摘We present detailed geochronological,geochemical,and zircon Hf isotopic data for Late Paleozoic granitic rocks from Handagai and Zhonghe plutons in the Xing’an Block,NE China,aiming to provide constraints on their origin and tectonic implications.New zircon U-Pb ages indicate they were formed in the Late Devonian(ca.379 Ma) immediately after a striking 50 Ma magmatic lull(ca.430-380 Ma) in the Xing ’ an Block.Petrological and geochemical features suggest that the Handagai monzogranites and Zhonghe alkali-feldspar granites are I- and A-type granites,respectively,although both of them have high-K calc-alkaline features and positive zircon ε_(Hf)(t) values(+3.47 to +10.77).We infer that the Handagai monzogranites were produced by partial melting of juvenile basaltic crustal materials under a pressure of <8-10 kbar,whereas the Zhonghe alkali-feldspar granites were generated by partial melting of juvenile felsic crustal materials at shallower depths(P ≤ 4 kbar).Our results,together with published regional data,indicate their generation involves a subduction-related extensional setting.Slab break-off of the Hegenshan-Heihe oceanic plate may account for the subduction-related extensional setting,as well as the transformation of arc magmatism from the Early-Middle Devonian lull to the Late Devonian-Early Carboniferous flare-up in the Xing’an Block. | Zheng Ji Wenchun Ge Hao Yang Yanlong Zhang Yu Dong Junhui Bi Xiwen Liu | 2022 | Journal of Earth Science2022，33，1： | 1 |
| 14 | Geochro- nology of the Phanerozoic Granitoids in Northeastern China显示文摘 | Wu Fuyuan Sun Deyou Ge Wenchun | 2011 | Journal of Asian Earth Sciences2011，41，： | 1 |
| 15 | Large-scale Early Cretaceous volcanic events in the northern Great Xing'an Range, Northeastern China显示文摘 | Zhang Jiheng Ge Wenchun Wu Fuyuan | 2008 | Lithos2008，102，： | 1 |
| 16 | Geochronology of the Mesozoic volcanic rocks in the Great Xing'an Range,northeastern China:Implications for subduction-induced delamination显示文摘 | Zhang Jiheng Gao Shan Ge Wenchun | 2010 | Chemical Geology2010，，276： | 1 |
| 17 | Highly fractionated I-type granites in NE China (Ⅱ):Isotopic geochemistry and implications for crustal growth in the Phanerozoic显示文摘 | Wu Fuyuan Jahn Bor-ming Simon A Wilde Lo Chinghua Yui Tzen-Fu Lin Qiang Ge Wenchun Sun De-you | 2003 | Lithos2003，67，： | 1 |
| 18 | Age and origin of middle Neoproterozoic mafic magmatism in southern Yangtze Block and relevance to the break-up of Rodinia 显示文摘 | ZHOU JIBIN LI XIANHUA GE WENCHUN | 2007 | Gondwana Research2007，，12： | 1 |
| 19 | Geochronology and Geochemistry of Early Cretaceous Granitic Plutons in the Xing’an Massif, Great Xing’an Range, NE China: Petrogenesis and Tectonic Implications显示文摘In this study, we present zircon U-Pb ages, whole-rock geochemical data and Hf isotopic compositions for the Meiguifeng and Arxan plutons in Xing’an Massif, Great Xing’an Range, which can provide important information in deciphering both Mesozoic magmatism and tectonic evolution of NE China. The zircon U-Pb dating results indicate that alkali feldspar granite from Meiguifeng pluton was emplaced at ~145 to 137 Ma, and granite porphyry of Arxan pluton was formed at ~129 Ma. The Meiguifeng and Arxan plutons have similar geochemical features, which are characterized by high silica, total alkalis, differentiation index, with low P2O5, CaO, MgO, TFe2O3 contents. They belong to high-K calc-alkaline series, and show weakly peraluminous characteristics. The Meiguifeng and Arxan plutons are both enriched in LREEs and LILEs(e.g., Rb, Th, U and K), and depleted in HREEs and HFSEs(e.g., Nb, Ta and Ti). Combined with the petrological and geochemical features, the Meiguifeng and Arxan plutons show highly fractionated I-type granite affinity. Moreover, the Meiguifeng and Arxan plutons may share a common or similar magma source, and they were probably generated by partial melting of Neoproterozoic high-K basaltic crust. Meanwhile, plagioclase, K-feldspar, biotite, apatite, monazite, allanite and Ti-bearing phases fractionated from the magma during formation of Meiguifeng and Arxan plutons. Combined with spatial distribution and temporal evolution, we assume that the generation of Early Cretaceous Meiguifeng and Arxan plutons in Great Xing’an Range was closely related to the break-off of Mudanjiang oceanic plate. Furthermore, the Mudanjiang Ocean was probably a branch of Paleo-Pacific Ocean. | DONG Yu GE Wenchun TIAN Dexin JI Zheng YANG Hao BI Junhui WU Haoran HAO Yujie | 2019 | Acta Geologica Sinica(English Edition)2019，93，5： | 1 |
| 20 | Geo-chronology of the Phanerozoic Granitoids inNortheastern China 显示文摘 | Wu Fuyuan Sun Deyou Ge Wenchun | 2011 | Journal of Asian EarthSciences2011，41，： | 1 |
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