东非裂谷Oldoinyo Lengai火山碳酸岩浆作用过程中的镁同位素分馏
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- 论文作者：李王晔 ; 滕方振
- 年：2015
- 作者机构：中国科学院壳幔物质与环境重点实验室中国科学技术大学地球和空间科学学院;Isotope Laboratory, Department of Earth & Space Sciences, University of Washington;
- 会议召开时间：2015-10-18
- 会议录名称：中国地质学会同位素地质专业委员会成立三十周年暨同位素地质应用成果学术讨论会论文摘要集
- 语种：中文
- 分类号：P597;P588.245
- 学会代码：DXHD
- 会议名称：中国地质学会同位素地质专业委员会成立三十周年暨同位素地质应用成果学术讨论会
- 会议地点：中国浙江宁波
- 主办单位：中国地质学会同位素地质专业委员会
- 学会名称：中国地质学会地质学报编辑部
- 页数：2
- 文件大小：748k
- 原文格式：D
- 会议级别：全国
摘要
<正>碳酸盐熔体具有极低的粘度和独特的元素配分型式,是引起地幔交代作用和化学组成不均一性的重要介质之一(Yaxley et al.,1991;Rudnick et al.,1993;Coltorti et al.,1999)。火成碳酸岩是碳酸盐熔体结晶的产物,其镁(Mg)同位素组成可以为碳酸岩浆作用过程中镁同位素的分馏行为和地幔的镁同位素组成特征提供重要制约。为此,我们系统研究了东非裂谷Oldoinyo Lengai火山共生的火成碳
引文
Coltorti M,Bonadiman C,Hinton R W,Siena F,Upton B G J.1999.Carbonatite matasomatism of the oceanic upper mantle:Evidence from clinopyroxenes and glasses in ultramafic xenoliths of Grande Comore,Indian Ocean.Journal of Petrology,40(1):133~165.
Dawson J B.1998.Peralkaline nephelinite-natrocarbonatite relationships at Oldoinyo Lengai,Tanzania.Journal of Petrology,39(11-12):2077~2094.
Gittins J,Jago B C.1998.Differentiation of natrocarbonatite magma at Oldoinyo Lengai volcano,Tanzania.Mineralogical Magazine,62(6):759~768.
Keller J,Zaitsev A N,Wiedenmann D.2006.Primary magmas at Oldoinyo Lengai:The role of olivine melilitites.Lithos,91(1-4):150~172.
Kjarsgaard B A,Hamilton D L,Peterson T D.1995.Peralkaline nephelinite/carbonatite liquid immiscibility:Comparison of phase compositions in experiments and natural lavas from Oldoinyo Lengai.In:Bell K,Keller J.Eds.Carbonatite Volcanism:Oldoinyo Lengai and the Petrogenesis of Natrocarbonatite.Berlin:Springer-Verlag,163~190.
Klaudius J,Keller J.2006.Peralkaline silicate lavas at Oldoinyo Lengai,Tanzania.Lithos,91(1-4):173~190.
Peterson T D,Kjarsgaard B A.1995.What are the parental magmas at Oldoinyo Lengai?In:Bell K,Keller J.Eds.Carbonatite Volcanism:Oldoinyo Lengai and the Petrogenesis of Natrocarbonatite.Berlin:Springer-Verlag,148~162.
Rudnick R L,Mc Donough W F,Chappell B W.1993.Carbonatite metasomatism in the northern Tanzanian mantle:Petrographic and geochemical characteristics.Earth and Planetary science Letters,114(4):463~475.
Teng Fangzhen,Li Wangye,Ke Shan,Marty B,Dauphas N,Huang Shichun,Wu Fuyuan,Pourmand A.2010.Magnesium isotopic composition of the Earth and chondrites.Geochimica et Cosmochimica Acta,74(14):4150~4166.
Xiao Yan,Teng Fangzhen,Zhang Hongfu,Yang Wei.2013.Large magnesium isotope fractionation in peridotite xenoliths from eastern North China craton:Product of melt-rock interaction.Geochimica et Cosmochimica Acta,115:241~261.
Yang Wei,Teng Fangzhen,Zhang Hongfu.2009.Chondritic magnesium isotopic composition of the terrestrial mantle:A case study of peridotite xenoliths from the North China craton.Earth and Planetary science Letters,288(3-4):475~482.
Yaxley G M,Crawford A J,Green D H.1991.Evidence for carbonatite metasomatism in spinel peridotite xenoliths from western Victoria,Australia.Earth and Planetary science Letters,107(2):305~317.
Dawson J B.1998.Peralkaline nephelinite-natrocarbonatite relationships at Oldoinyo Lengai,Tanzania.Journal of Petrology,39(11-12):2077~2094.
Gittins J,Jago B C.1998.Differentiation of natrocarbonatite magma at Oldoinyo Lengai volcano,Tanzania.Mineralogical Magazine,62(6):759~768.
Keller J,Zaitsev A N,Wiedenmann D.2006.Primary magmas at Oldoinyo Lengai:The role of olivine melilitites.Lithos,91(1-4):150~172.
Kjarsgaard B A,Hamilton D L,Peterson T D.1995.Peralkaline nephelinite/carbonatite liquid immiscibility:Comparison of phase compositions in experiments and natural lavas from Oldoinyo Lengai.In:Bell K,Keller J.Eds.Carbonatite Volcanism:Oldoinyo Lengai and the Petrogenesis of Natrocarbonatite.Berlin:Springer-Verlag,163~190.
Klaudius J,Keller J.2006.Peralkaline silicate lavas at Oldoinyo Lengai,Tanzania.Lithos,91(1-4):173~190.
Peterson T D,Kjarsgaard B A.1995.What are the parental magmas at Oldoinyo Lengai?In:Bell K,Keller J.Eds.Carbonatite Volcanism:Oldoinyo Lengai and the Petrogenesis of Natrocarbonatite.Berlin:Springer-Verlag,148~162.
Rudnick R L,Mc Donough W F,Chappell B W.1993.Carbonatite metasomatism in the northern Tanzanian mantle:Petrographic and geochemical characteristics.Earth and Planetary science Letters,114(4):463~475.
Teng Fangzhen,Li Wangye,Ke Shan,Marty B,Dauphas N,Huang Shichun,Wu Fuyuan,Pourmand A.2010.Magnesium isotopic composition of the Earth and chondrites.Geochimica et Cosmochimica Acta,74(14):4150~4166.
Xiao Yan,Teng Fangzhen,Zhang Hongfu,Yang Wei.2013.Large magnesium isotope fractionation in peridotite xenoliths from eastern North China craton:Product of melt-rock interaction.Geochimica et Cosmochimica Acta,115:241~261.
Yang Wei,Teng Fangzhen,Zhang Hongfu.2009.Chondritic magnesium isotopic composition of the terrestrial mantle:A case study of peridotite xenoliths from the North China craton.Earth and Planetary science Letters,288(3-4):475~482.
Yaxley G M,Crawford A J,Green D H.1991.Evidence for carbonatite metasomatism in spinel peridotite xenoliths from western Victoria,Australia.Earth and Planetary science Letters,107(2):305~317.