苏鲁超高压榴辉岩中钾长石的超高压相

被引:6
作者
曾令森
陈晶
陈振宇
陈方远
高利娥
机构
[1] 中国地质科学院地质研究所
[2] 北京大学物理学院
[3] 中国地质科学院矿床与资源研究所
关键词
超高压变质作用; 榴辉岩; 钾长石; 钾质钡铭沸石; 多晶包裹体;
D O I
暂无
中图分类号
P588.348 [];
学科分类号
摘要
在苏鲁超高压榴辉岩中,石榴石和绿辉石包含多种含钾长石的显微多晶包裹体。确定其中的钾长石是否经历过超高压变质不仅有助于限定这些长英质包裹体的成因机制,而且有助于深化理解在超高压变质过程中陆壳岩石的物理和化学行为。榴辉岩B174样品采自于中国大陆科学钻探主孔岩心。该样品的石榴石含多种单相和多相多晶包裹体,其中包括钾长石和方解石单相包裹体、钾长石+石英和钾长石+方解石多晶包裹体。激光拉曼光谱分析揭示了部分钾长石残留有超高压钾长石相——钾质钡铝沸石,表明(1)钾长石至少经历了从钾质钡铝沸石向钾长石的退变质相变;和(2)榴辉岩中含钾长石多晶包裹体形成于超高压变质条件下。
引用
收藏
页码:2141 / 2148
页数:8
相关论文
共 40 条
  • [21] Fluid activity during exhumation of deep-subducted continental plate[J]. ZHENG Yongfei School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China.Chinese Science Bulletin. 2004(10)
  • [22] Fluid inclusions hidden in coesite-bearing zircons in ultrahigh-pressure metamorphic rocks from southwestern Sulu terrane in eastern China[J]. LIU Fulai & XU Zhiqin Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China.Chinese Science Bulletin. 2004(04)
  • [23] New finding of microdiamonds in eclogites from Dabie-Sulu region in central-eastern China[J]. XU Shutong1, LIU Yican1, CHEN Guanbao1, Roberto Compagnoni2, Franco Rolfo2, HE Mouchun3 & LIU Huifang3 1. Anhui Institute of Geology, Hefei 230001, China;2. Department of Mineralogy and Petrology, University of Torino, Torino 10125, Italy;3. Central Laboratory of Analyses, China University of Geoscience, Wuhan 430074, China.Chinese Science Bulletin. 2003(10)
  • [24] Kokchetavite: a new potassium-feldspar polymorph from the Kokchetav ultrahigh-pressure terrane[J] . Shyh-Lung Hwang,Pouyan Shen,Hao-Tsu Chu,Tzen-Fu Yui,Juhn G. Liou,Nikolay V. Sobolev,Ru-Yuan Zhang,Vladislav S. Shatsky,Anton A. Zayachkovsky.Contributions to Mineralogy and Petrology . 2004 (3)
  • [25] Status report on stability of K-rich phases at mantle conditions[J] . George E. Harlow,Rondi Davies.LITHOS . 2004 (1)
  • [26] Zircon U-Pb and oxygen isotope evidence for a large-scale 18O depletion event in igneous rocks during the neoproterozoic
    Zheng, YF
    Wu, YB
    Chen, FK
    Gong, B
    Li, L
    Zhao, ZF
    [J]. GEOCHIMICA ET COSMOCHIMICA ACTA, 2004, 68 (20) : 4145 - 4165
  • [27] Melting and dissolution of subducting crust at high pressures: the key role of white mica[J] . Max W. Schmidt,Daniel Vielzeuf,Estelle Auzanneau.Earth and Planetary Science Letters . 2004 (1)
  • [28] Genesis of microdiamonds from melt and associated multiphase inclusions in garnet of ultrahigh-pressure gneiss from Erzgebirge, Germany[J] . Shyh-Lung Hwang,Pouyan Shen,Hao-Tsu Chu,Tzen-Fu Yui,Chung-Cherng Lin.Earth and Planetary Science Letters . 2001 (1)
  • [29] Sm–Nd and Rb–Sr isotopic chronology and cooling history of ultrahigh pressure metamorphic rocks and their country rocks at Shuanghe in the Dabie Mountains, Central China[J] . Shuguang Li,Emil Jagoutz,Yizhi Chen,Qiuli Li.Geochimica et Cosmochimica Acta . 2000 (6)
  • [30] Carbon concentrations and isotopic ratios of eclogites from the Dabie and Sulu terranes in China[J] . Yong-Fei Zheng,Bing Gong,Yiliang Li,Zhengrong Wang,Bin Fu.Chemical Geology . 2000 (3)