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| 1 | Spinel + quartz-bearing ultrahigh-temperature granulites from Xumayao,Inner Mongolia Suture Zone,North China Craton:Petrology,phase equilibria and counterclockwise p-T path显示文摘在在北方中国 Craton 的内部蒙古缝术地区(IMSZ ) 以内的 Khondalite 带是为 Paleoproterozoic 的一个经典例子超离频温度(UHT ) 变态。这里,我们在 IMSZ 的南部的领域以内在 Xumayao 从一个新地区报导新忍受尖晶石的 metapelitic granulites。Petrological 研究并且尖晶石 + 的热力学的建模忍受石英的集合证明这些岩石以 UHT 条件经历了极端变态。尖晶石组织上发生在二背景:1 ) 高 XZn (Zn/(Mg +FeII + Zn )= 0.0710.232 ) 有在岩石矩阵的 perthitic K 长石,矽线石和石英的尖晶石;并且 2 ) 低 XZn (0.0450.070 ) 尖晶石作为在与石英和矽线石联合的石榴石 porphyroblasts 以内的包括。我们当模特儿的阶段 equilibria 在这些岩石的变形进化期间显示二个主要阶段: 1 )从 975 的在等压附近的冷却????畘慭慹?????????????朠慲畮楬整????????????????慲潴????????煥極楬牢慩?????????????胴?? | Huatian Zhang Jianghai Li Shoujie Liu Wenshan Li M. Santosh Honghao Wang | 2012 | Geoscience Frontiers2012,3,5: | 8 |
| 2 | Genesis of the Bianjiadayuan Pb-Zn polymetallic deposit, Inner Mongolia, China:Constraints from in-situ sulfur isotope and trace element geochemistry of pyrite显示文摘The Southern Great Xing’an Range (SGXR) which forms part of the eastern segment of the Central Asian Orogenic Belt (CAOB) is known as one of the most important Cu-Mo-Pb-Zn-Ag-Au metallogenic belts in China,hosting a number of porphyry Mo (Cu),skarn Fe (Sn),epithermal Au-Ag,and hydrothermal veintype Ag-Pb-Zn ore deposits.Here we investigate the Bianjiadayuan hydrothermal vein-type Ag-Pb-Zn ore deposit in the southern part of the SGXR.Porphyry Sn ±Cu ± Mo mineralization is also developed to the west of the Ag-Pb-Zn veins in the ore field.We identify a five-stage mineralization process based on field and petrologic studies including (i) the early porphyry mineralization stage,(ii) main porphyry mineralization stage,(iii) transition mineralization stage,(iv) vein-type mineralization stage and (v) late mineralization stage.Pyrite is the predominant sulfide mineral in all stages except in the late mineralization stage,and we identify corresponding four types of pyrites: Py1 is medium-grained subhedral to euhedral occurring in the early barren quartz vein;Py2 is medium- to fine-grained euhedral pyrite mainly coexisting with molybdenite,chalcopyrite,minor sphalerite and galena;Py3 is fine-grained,subhedral to irregular pyrite and displays cataclastic textures with micro-fractures;Py4 occurs as euhedral microcrystals and forms irregularly shaped aggregate with sphalerite and galena.LA-ICP-MS trace element analyses of pyrite show that Cu,Pb,Zn,Ag,Sn,Cd and Sb are partitioned into pyrite as structurally bound metals or mineral micro/nano-inclusions,whereas Co,Ni,As and Se enter the lattice via isomorphism in all types of pyrite.The Cu,Zn,Ag,Cd concentrations gradually increase from Py1 to Py4,which we correlate with cooling and mixing of ore-forming fluid with meteoric water.Py2 contains the highest contents of Co,Ni,Se,Te and Bi,suggesting high temperature conditions for the porphyry mineralization stage.Ratios of Co/Ni (0.03-10.79,average 2.13) and sulphur isotope composition of sulfide indicate typical hydrothermal origin for pyrites.The δ^34SCDT values of Py1 (0.42‰-1.61‰,average 1.16‰),Py2 (-1.23‰ to 0.82‰,average 0.35‰),Py3 (-0.36‰ to 2.47‰,average 0.97‰),Py4 (2.51‰-3.72‰,average 3.06‰),and other sulfides are consistent with those of typical porphyry deposit (-5‰ to 5‰),indicating that the Pb-Zn polymetallic mineralization in the Bianjiadayuan deposit is genetically linked to the Yanshanian (JurassiceCretaceous) magmatic-hydrothermal events.Variations of d34S values are ascribed to the changes in physical and chemical conditions during the evolution and migration of the ore-forming fluid.We propose that the high Sn content of pyrite in the Bianjiadayuan hydrothermal vein-type PbeZn polymetallic deposit can be used as a possible pathfinder to prospect for Sn mineralization in the surrounding area or deeper level of the ore field in this region. | Kai-Rui Song Li Tang Shou-Ting Zhang M. Santosh Christopher J. Spencer Yu Zhao Hao-Xing Li Liang Wang An-Li Zhang Yin-Qiang Sun | 2019 | Geoscience Frontiers2019,10,5: | 4 |
| 3 | Effect of Cation Proportion on the Structural and Magnetic Properties of Ni-Zn Ferrites Nano-Size Particles Prepared By Co-Precipitation Technique显示文摘有一般公式 Ni 1−x Zn x Fe 2 有 x = 的 O 4 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6,和 0.7 被湿化学一起沉淀准备方法。结构并且磁性借助于 X 光检查衍射,磁化,和交流危险性大小被学习。X 光检查分析证实了样品的单相的形成。从 XRD 数据获得的格子参数被发现与 Zn 内容 x 增加。阳离子分发被 X 光检查紧张比率计算学习。磁化结果展出在同一直线上的含铁为 x ≤
的磁性的结构0.4,并且哪个的变化为 x>0.4 非在同一直线上。居里温度 T 从交流危险性数据获得的 C 与增加 x 减少。 | Santosh S. Jadhav Sagar E. Shirsath B. G. Toksha S. J. Shukla K. M. Jadhav | 2008 | Chinese Journal of Chemical Physics2008,21,4: | 3 |
| 4 | Morphology,Chemistry and U-Pb Geochronology of Zircon Grains in Quartz Monzodiorite from the Sunzhuang Area,Fanshi County,Shanxi Province显示文摘The morphology, REE geochemistry and U-Pb geochronology of zircons from quartz monzodiorite in the Sunzhuang area, Fanshi County, Shanxi Province are presented in this study. The zircon crystals can be classified into four main types as: AB, L, S and P, and 24 subtypes such as AB4, AB5, L5, and S3. The maximum crystallization temperature of zircon was estimated as 850°C, with the minimum of 550°C. The peak temperatures of the zircon crystallization range from 650°C to 700°C. The abundances of Th and U in the zircon grains show large variation with the Th/U values > 0.4. The Th and U values also show a positive correlation in most zircons. The REE abundance of zircon in the quartz monzodiorite ranges from 280.4 ppm to 2143 ppm with an average of 856.4 ppm. The chondrite normalized zircon REE patterns show two types, one is characterized by HREE enrichment and LREE depletion with positive Ce-anomaly and negative Eu-anomaly whereas the other is HREE enriched and LREE depleted with negative Eu-anomaly but without positive Ce-anomaly, and relatively flat patterns. The LA-ICP-MS U-Pb geochronology on the zircons yields a mean age of 133±0.87 Ma. Our data on zircon morphology, composition and U-Pb geochronology reveal that the parent magma of the quartz monzodiorite which was emplaced during late Yanshanian had a mixed crust-mantle source, with crustal components dominating. The magma is inferred to have been water rich and alkaline with initial high oxygen fugacity. Post-magmatic hydrothermal activity occurred under relatively reducing conditions which was conductive for gold precipitation in the Yixingzhai gold deposit. | SONG Jiye LI Shengrong QIN Mingkuan CAI Yuqi LUO Junyan ZHANG Juquan LI Chenglu SANTOSH M. | 2015 | Acta Geologica Sinica(English Edition)2015,89,4: | 2 |
| 5 | Late Mesozoic magmatism in the East Qinling Orogen, China and its tectonic implications显示文摘The Qinling Orogen in Central China records the history of a complex geological evolution and tectonic transition from compression to extension during the Late Mesozoic,with concomitant voluminous granitoids formation.In this study,we present results from petrological,geochemical,zircon U-Pb-Lu-Hf isotopic studies on the Lengshui felsic dykes from Luanchuan region in the East Qinling Orogen.We also compile published geochronological,geochemical,and Hf isotopic data from Luanchuan region and present zircon Hf isotopic contour maps.The newly obtained age data yield two group of ages at w145 Ma and 140 Ma for two granite porphyries from the Lengshui felsic dykes,with the w145 Ma interpreted as response to the peak of magmatism in the region,and the w140 Ma as the timing of formation of the felsic dykes.The corresponding Hf isotopic data of the granite porphyries display negative εHf(t) values of e16.67 to e4.61,and Hf crustal model ages (TDM^C) of 2255e1490 Ma,indicating magma sourced from the melting of Paleo- to Mesoproterozoic crustal materials.The compiled age data display two major magmatic pulses at 160e130 Ma and 111e108 Ma with magmatic quiescence in between,and the zircon Hf isotopic data display εHf(t) values ranging from e41.9 to 2.1 and TDM^C values of 3387e1033 Ma,suggesting mixed crustal and mantle-derived components in the magma source,and correspond to multiple tectonic events during the Late Mesozoic.The Luanchuan granitoids are identified as I-type granites and most of these are highly fractionated granites,involving magma mixing and mingling and crystal fractionation.The tectonic setting in the region transformed from the Late Jurassic syn-collision setting to Early Cretaceous within-plate setting,with EeW extension in the Early Cretaceous.This extension is correlated with the NeS trending post-collisional extension between the North China Craton and Yangtze Craton as well as the EeW trending back-arc extension triggered by the westward Paleo-Pacific Plate subduction,eventually leading to lithospheric thinning,asthenospheric upwelling,mafic magma underplating,and crustal melting in the East Qinling Orogen. | Fan Yang Fei Xue M. Santosh Gongwen Wang Sung Won Kim Zhiwei Shen Wenjuan Jia Xuhuang Zhang | 2019 | Geoscience Frontiers2019,10,5: | 2 |
| 6 | Metallogeny of the North China Craton: Link with secular changes in the evolving Earth显示文摘 | Mingguo Zhai M. Santosh | 2013 | Gondwana Research2013,,1: | 1 |
| 7 | Evolutionary rates and timescale comparison of Chikungunya viruses inferred from the whole genome/E1 gene with special reference to the 2005–07 outbreak in the Indian subcontinent显示文摘 | Sarah S. Cherian Atul M. Walimbe Santosh M. Jadhav Swati S. Gandhe Supriya L. Hundekar Akhilesh C. Mishra Vidya A. Arankalle | 2008 | Infection Genetics and Evolution2008,,1: | 1 |
| 8 | Bamboo shoot processing: food quality and safety aspect (a review)显示文摘 | Santosh Satya Lalit M. Bal Poonam Singhal S.N. Naik | 2009 | Trends in Food Science & Technology2009,,4: | 1 |
| 9 | The naked planet Earth: Most essential pre-requisite for the origin and evolution of life显示文摘 | S. Maruyama M. Ikoma H. Genda K. Hirose T. Yokoyama M. Santosh | 2012 | Geoscience Frontiers2012,,: | 1 |
| 10 | Remelting of Neoproterozoic relict volcanic arcs in the Middle Jurassic: Implication for the formation of the Dexing porphyry copper deposit, Southeastern China显示文摘 | Xuan Liu Hong-Rui Fan M. Santosh Fang-Fang Hu Kui-Feng Yang Qiu-Li Li Yue-Heng Yang Yongsheng Liu | 2012 | LITHOS2012,,: | 1 |
| 11 | The early Precambrian odyssey of the North China Craton: A synoptic overview显示文摘 | Ming-Guo Zhai M. Santosh | 2011 | Gondwana Research2011,,1: | 1 |
| 12 | Cinnamate 4-Hydroxylase ( C4H ) genes from Leucaena leucocephala : a pulp yielding leguminous tree显示文摘 | Santosh Kumar Sumita Omer Krunal Patel Bashir M. Khan | 2013 | Molecular Biology Reports2013,,2: | 1 |
| 13 | Extreme crustal metamorphism during Columbia supercontinent assembly: Evidence from North China Craton显示文摘 | M. Santosh K. Sajeev J.H. Li | 2006 | Gondwana Research2006,,3: | 1 |
| 14 | Permian bimodal dyke of Tarim Basin, NW China: Geochemical characteristics and tectonic implications显示文摘 | Shu-Feng Yang Zilong Li Hanlin Chen M. Santosh Chuan-Wan Dong Xing Yu | 2006 | Gondwana Research2006,,1: | 1 |
| 15 | Petrogenesis of Late Paleozoic volcanics from the Zhaheba depression, East Junggar: Insights into collisional event in an accretionary orogen of Central Asia显示文摘 | Di Li Deng-fa He M. Santosh Jie-yun Tang | 2014 | LITHOS2014,,: | 1 |
| 16 | Relevance of Helicobacter pylori genotypes in gastric pathology and its association with plasma malondialdehyde and nitric oxide levels显示文摘 | Santosh K. Tiwari G. Manoj Vishwas Sharma G. Sivaram R. Saikant Avinash Bardia Varun K. Sharma Zakia Abid Aleem A. Khan M. Aejaz Habeeb C. M. Habibullah B. Santhosh Kumar Amrita Nandan | 2010 | Inflammopharmacology2010,,2: | 1 |
| 17 | C-C chemokine receptor 2 and C-C chemokine receptor 5 genotypes in patients treated for chronic hepatitis C virus infection显示文摘 | M. Tevfik Dorak Gbolahan O. Folayan Santosh Niwas Dirk J. Leeuwen Leland J. Yee Jianning Tang Dr. Richard A. Kaslow | 2002 | Immunologic Research (-)2002,,1: | 1 |
| 18 | SHRIMP U–Pb ages of K-bentonite beds in the Xiamaling Formation: Implications for revised subdivision of the Meso- to Neoproterozoic history of the North China Craton显示文摘 | Wenbo Su Shihong Zhang Warren D. Huff Huaikun Li Frank R. Ettensohn Xiaoyu Chen Hongmei Yang Yigui Han Biao Song M. Santosh | 2008 | Gondwana Research2008,,3: | 1 |
| 19 | Purification and characterization of azoreductase from alkaliphilic strain Bacillus badius显示文摘 | Santosh A. Misal Devendra P. Lingojwar Ravindra M. Shinde Kachru R. Gawai | 2011 | Process Biochemistry2011,,6: | 1 |
| 20 | Higher topoisomerase 2 alpha gene transcript levels predict better prognosis in GBM patients receiving temozolomide chemotherapy: identification of temozolomide as a TOP2A inhibitor显示文摘 | A. Arivazhagan Durairaj Kumar Vinay Sagar Irene Patric S. Sridevi Balaram Thota Mallavarapu Srividya K. Prasanna K. Thennarasu Neelima Mondal A. Hegde B. Chandramouli V. Santosh M. Rao P. Kondaiah K. Somasundaram | 2012 | Journal of Neuro-Oncology2012,,2: | 1 |