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《GEOCHIMICA》 1996-01
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CHEMICAL BEHAVIOUR OF SOLID PHASE DURING PARTIAL MELTING AND FACIES TRANSITION (SPINEL PLAGIOCLASE) OF MANTLE PERIDOTITE ──Ⅰ. EXPERIMENTAL STUDY

Li Jianping; Jacques Kornprobst; Daniel Vielzeuf (Guangzhou institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640)(Departement de Geologie et Mineralogie, Universite Blaise Pascal, 63038 Clermont-Ferrand, France)  
Over temperature range 1130─1450℃ ,and pressure range 0.4─2.0GPa, the chemical behaviour of soild phases of mantle peridotite during partial melting and spinel-to plagioclase-facies transition was experimentally studied. During partial melting, with increasing in degree of melting, Mg / (Mg+Fe) of olivine, Mg / (Mg+Fe) and Cr/(Cr+Al) of spinel and orthopyroxene increase gradually, but CaO content in olivine increases at first until vanishing of clinopyroxene and then decreases gradually; Ti content which is very low (TiO20.15%) in spinel remains unchanged or decreases a little; Ti content in orthopyroxene, and Na and Ti contents in clinopyroxehe decrease gradually until they are very low. During transition from spinel-lherzolite to plagioclase-lherzolite facies, spinel is very rich in Ti and its Cr / (Cr+Al) increases, Ti content and Cr / (Cr+Al) of orthopyroxene increase simultaneously; Na content in clinopyroxene decreases as Ti content increases or remains unchanged. As plagioclase-peridotite underwent partial melting (even very weak),the characteristics of chemical compositions of minerals, which resulted from partial melting,could be observed, instead of that resulted from facies transition. This may be used as an indicator to distinguish if peridotite underwent partial melting with plagioclase facies or not.
【CateGory Index】: P591
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【References】
Chinese Journal Full-text Database 2 Hits
1 HU SenLin;LUO Dan;CHEN LiHui;Geological Survey of Jiangsu Province;State Key Laboratory for Mineral Deposits Research,School of Earth Sciences and Engineering,Nanjing University;;Genesis of sieve-textured rim of spinel in mantle xenoliths[J];岩石学报;2017-01
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【Co-references】
Chinese Journal Full-text Database 10 Hits
1 ZHOU Yuan-ting,ZHENG Jian-ping,YU Chun-mei,CHEN Xi and ZHANG Ming-min(State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Wuhan 430074,China);Peridotite xenoliths in Jining Cenozoic basalts:mineral-chemistry and significance for lithospheric mantle evolution beneath the North China Craton[J];岩石矿物学杂志;2010-03
2 ZHANG WenHui HAN BaoFu Key Laboratory of Orogenic Belts and Crustal Evolution,Ministry of Education,School of Earth and Space Sciences,Peking University,Beijing 100871,China;K-Ar Chronology and Geochemistry of Jining Cenozoic basalts,Inner Mongolia,and geodynamic Implications.[J];岩石学报;2006-06
3 ZHENG Jian-ping, LU Feng-xiang, YU Chun-mei, YUAN Xiao-ping, ZHANG Rui-sheng State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences , Wuhan 430074, China;Peridotitic Petrochemistry of the Eastern North China: Significance for Lithospheric Mantle Evolution[J];地球科学;2006-01
4 YU Chun-mei, ZHENG Jian-ping, W. L. Griffin Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China GEMOC, Department of Earth and Planetary Sciences, Macquarie University, Sydney, NSW 2109, Australia;LAM-ICPMS Analysis on Clinopyroxenes of Peridotite Xenoliths from Hannuoba and Its Significance on Lithospheric Mantle Evolution[J];地球科学;2006-01
5 FAN Qicheng1, SUI Jianli2, XU Ping2, LI Ni1, SUN Qian1 & WANG Tuanhua1 1. Institute of Geology, China Seismological Bureau, Beijing 100029, China; 2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;Si- and alkali-rich melt inclusions in minerals of mantle peridotites from eastern China: Implication for lithospheric evolution[J];Science in China(Series D:Earth Sciences);2006-01
6 DU Wei, HAN Bao-fu, ZHANG Wen-hui and LIU Zhi-qiang(Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing 100871, China);The discovery of peridotite xenoliths and megacrysts in Jining, Inner Mongolia[J];岩石矿物学杂志;2006-01
7 ZHANG WenHui HAN BaoFu DU Wei LIU ZhiQiang The Key Laboratory of Orogenic Belts and Crustal Evolution,MOE,School of Earth and Space Sciences,Peking University,Beijing 100871,China;Characteristics of mantle source for Jining Cenozoic basalts from southern Inner Mongolia:evidence from element and Sr-Nd-Pb isotopic geochemistry.Acta Petrologica[J];岩石学报;2005-06
8 CHEN Yan, WU Tai-ran, XU Xuan, ZHANG Shuang-tao (Key Laboratory of Orogenic Belts and Crustal Evolution, Ministry of Education, Peking University, Beijing 100871, China);Discovery of Mantle Xenoliths Bearing Miocene Potassium-Rich Olivine Basalt and Its Significance in Siziwangqi Area, Inner Mongolia[J];高校地质学报;2004-04
9 ZHANG Hongfu, YING Jifeng, Xu Ping & MA Yuguang Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029,China;Mantle olivine xenocrysts entrained in Mesozoic basalts from the North China craton: Implication for replacement process of lithospheric mantle[J];Chinese Science Bulletin;2004-09
10 XU YiGang, HUANG XiaoLong, M F THIRLWALL and CHEN XiaoMing 1. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China 2. Department of Geology, Royal Holloway University of London , Egham Surrey , TW20 OEX, UK 3. Department of Earth Sciences , Nanjing University , Nanjing 210093, China;“Reactive” harzburgite xenoliths from Huinan, Jilin province and their implications for deep dynamic processes.[J];岩石学报;2003-01
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