俯冲带固相进变质过程及榴辉岩矿物对的Fe同位素分馏研究
发布时间:2022-07-20 20:07
本论文以Fe同位素为手段,研究大别造山带进变质作用过程中形成的不同变质相岩石及榴辉岩中单斜辉石-石榴子石之间的Fe同位素分馏。为了改进Fe同位素分析,在利用标样-样品间插法(SSB)校正MC-ICPMS质量歧视的基础上建立了双稀释剂法+SSB法和Ni外标法+SSB法。根据长期监测的标样数据,当每个样品溶液在仪器上测试四次或九次后,δ56Fe长期外部精度分别<0.05‰和0.03‰。此外,本文报道了纯Fe溶液标样NIST SRM3126a大批量(N=51)、高精度的Fe同位素测试结果,并提出了新的推荐值:δ56Fe =0.363 ± 0.006,2se,95%c.i.;δ57Fe = 0.534 ± 0.009,2se,95%c.i.。大别造山带绿片岩,角闪岩,榴辉岩三种不同变质相变质岩的含水量随变质程度上升而逐渐减少,且原岩类似,均为元古代(750-800Ma)扬子北缘的基性火山岩。三种岩石的Fe同位素组成基本一致,随变质程度加深,平均值(δ56Fe)分别为 0.081 ± 0.075(2SD,n = 13),0.091 ± 0.037(2SD,n = 19),0.071 ± 0...
【文章页数】:102 页
【学位级别】:硕士
【文章目录】:
摘要
Abstract
第一章 前言
1.1 研究现状和存在问题
1.2 研究内容
1.3 本论文取得的主要认识
1.4 研究方法及工作量
第二章 Fe同位素分析方法
2.1 引言
2.2 实验
2.2.1 化学纯化
2.2.2 质谱仪测试
2.2.3 仪器质量歧视校正
2.2.3.1 双稀释剂方法
2.2.3.2 Ni外标法
2.2.4 内精度
2.3 结果与讨论
2.3.1 质量歧视短期波动的校正
2.3.2 精度和准确度
2.3.3 NIST SRM3126a新推荐值
2.4 小结
第三章 大别造山带区域地质概况
第四章 俯冲带固相进变质过程Fe同位素分馏研究
4.1 样品
4.2 Fe同位素数据结果
4.2.1 绿片岩Fe同位素组成
4.2.2 角闪岩Fe同位素组成
4.2.3 榴辉岩Fe同位素组成
4.3 讨论
4.3.1 固相进变质过程中Fe同位素分馏
4.3.2 变质岩Fe同位素变化的成因
4.3.3 固相进变质过程中的氧化还原反应及对岛弧玄武岩高氧逸度的指示
4.4 小结
第五章 大别造山带榴辉矿物对的Fe同位素分馏研究
5.1 引言
5.2 样品
5.2.1 毛屋
5.2.2 双河
5.2.3 碧溪岭
5.2.4 红安
5.3 Fe同位素数据结果
5.4 讨论
5.4.1 矿物间是否达到Fe同位素平衡
5.4.2 影响Fe同位素分馏大小的因素
5.5 小结
第六章 结论
致谢
参考文献
附录
【参考文献】:
期刊论文
[1]地球科学中铁同位素研究进展[J]. 何永胜,胡东平,朱传卫. 地学前缘. 2015(05)
[2]Mid—Late Neoproterozoic rift-related volcanic rocks in China:Geological records of rifting and break-up of Rodinia[J]. Linqi Xia~*,Zuchun Xia,Xueyi Xu,Xiangmin Li,Zhongping Ma Xi’an Institute of Geology and Mineral Resources,China Geological Survey,Xi’an,Shaanxi 710054,China. Geoscience Frontiers. 2012(04)
[3]双稀释剂法在非传统稳定同位素测定中的应用——以钼同位素为例[J]. 李津,朱祥坤,唐索寒. 岩矿测试. 2011(02)
[4]U-Pb dating of detrital zircons from the Wudangshan Group in the South Qinling and its geological significance[J]. LING WenLi1,2, DUAN RuiChun1,3, LIU XiaoMing1,4, CHENG JianPing1, MAO XinWu5, PENG LianHong5, LIU ZaoXue5, YANG HongMei1,3 & REN BangFang1,6 1 Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China; 2 State Key Laboratory of Geological Process and Mineral Resources, China University of Geosciences, Wuhan 430074, China; 3 Yichang Institute of Geology and Mineral Resources, Yichang 443003, China; 4 State Key Laboratory of Continental Geodynamics, Northwest University, Xi’an 710069, China; 5 Geological Survey of Hubei Province, Wuhan 430022, China; 6 Tianjin Institute of Geology and Mineral Resources, Tianjin 300170, China. Chinese Science Bulletin. 2010(22)
[5]Detachment within subducted continental crust and multi-slice successive exhumation of ultrahigh-pressure metamorphic rocks: Evidence from the Dabie-Sulu orogenic belt[J]. LIU YiCan& LI ShuGuang CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China. Chinese Science Bulletin. 2008(20)
[6]Timing of the Wudangshan, Yaolinghe volcanic sequences and mafic sills in South Qinling: U-Pb zircon geochronology and tectonic implication[J]. LING WenLi1,2, REN BangFang1,2, DUAN RuiChun1,2, LIU XiaoMing1,3, MAO XinWu4, PENG LianHong4, LIU ZaoXue4, CHENG JianPing1 & YANG HongMei1,2 1 Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China; 2 State Key Laboratory of Geological Process and Mineral Resources, China University of Geosciences, Wuhan 430074, China; 3 State Key Laboratory of Continental Geodynamics, Northwest University, Xi’an 710069, China; 4 Geological Survey of Hubei Province, Wuhan 430022, China. Chinese Science Bulletin. 2008(14)
本文编号:3664678
【文章页数】:102 页
【学位级别】:硕士
【文章目录】:
摘要
Abstract
第一章 前言
1.1 研究现状和存在问题
1.2 研究内容
1.3 本论文取得的主要认识
1.4 研究方法及工作量
第二章 Fe同位素分析方法
2.1 引言
2.2 实验
2.2.1 化学纯化
2.2.2 质谱仪测试
2.2.3 仪器质量歧视校正
2.2.3.1 双稀释剂方法
2.2.3.2 Ni外标法
2.2.4 内精度
2.3 结果与讨论
2.3.1 质量歧视短期波动的校正
2.3.2 精度和准确度
2.3.3 NIST SRM3126a新推荐值
2.4 小结
第三章 大别造山带区域地质概况
第四章 俯冲带固相进变质过程Fe同位素分馏研究
4.1 样品
4.2 Fe同位素数据结果
4.2.1 绿片岩Fe同位素组成
4.2.2 角闪岩Fe同位素组成
4.2.3 榴辉岩Fe同位素组成
4.3 讨论
4.3.1 固相进变质过程中Fe同位素分馏
4.3.2 变质岩Fe同位素变化的成因
4.3.3 固相进变质过程中的氧化还原反应及对岛弧玄武岩高氧逸度的指示
4.4 小结
第五章 大别造山带榴辉矿物对的Fe同位素分馏研究
5.1 引言
5.2 样品
5.2.1 毛屋
5.2.2 双河
5.2.3 碧溪岭
5.2.4 红安
5.3 Fe同位素数据结果
5.4 讨论
5.4.1 矿物间是否达到Fe同位素平衡
5.4.2 影响Fe同位素分馏大小的因素
5.5 小结
第六章 结论
致谢
参考文献
附录
【参考文献】:
期刊论文
[1]地球科学中铁同位素研究进展[J]. 何永胜,胡东平,朱传卫. 地学前缘. 2015(05)
[2]Mid—Late Neoproterozoic rift-related volcanic rocks in China:Geological records of rifting and break-up of Rodinia[J]. Linqi Xia~*,Zuchun Xia,Xueyi Xu,Xiangmin Li,Zhongping Ma Xi’an Institute of Geology and Mineral Resources,China Geological Survey,Xi’an,Shaanxi 710054,China. Geoscience Frontiers. 2012(04)
[3]双稀释剂法在非传统稳定同位素测定中的应用——以钼同位素为例[J]. 李津,朱祥坤,唐索寒. 岩矿测试. 2011(02)
[4]U-Pb dating of detrital zircons from the Wudangshan Group in the South Qinling and its geological significance[J]. LING WenLi1,2, DUAN RuiChun1,3, LIU XiaoMing1,4, CHENG JianPing1, MAO XinWu5, PENG LianHong5, LIU ZaoXue5, YANG HongMei1,3 & REN BangFang1,6 1 Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China; 2 State Key Laboratory of Geological Process and Mineral Resources, China University of Geosciences, Wuhan 430074, China; 3 Yichang Institute of Geology and Mineral Resources, Yichang 443003, China; 4 State Key Laboratory of Continental Geodynamics, Northwest University, Xi’an 710069, China; 5 Geological Survey of Hubei Province, Wuhan 430022, China; 6 Tianjin Institute of Geology and Mineral Resources, Tianjin 300170, China. Chinese Science Bulletin. 2010(22)
[5]Detachment within subducted continental crust and multi-slice successive exhumation of ultrahigh-pressure metamorphic rocks: Evidence from the Dabie-Sulu orogenic belt[J]. LIU YiCan& LI ShuGuang CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China. Chinese Science Bulletin. 2008(20)
[6]Timing of the Wudangshan, Yaolinghe volcanic sequences and mafic sills in South Qinling: U-Pb zircon geochronology and tectonic implication[J]. LING WenLi1,2, REN BangFang1,2, DUAN RuiChun1,2, LIU XiaoMing1,3, MAO XinWu4, PENG LianHong4, LIU ZaoXue4, CHENG JianPing1 & YANG HongMei1,2 1 Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China; 2 State Key Laboratory of Geological Process and Mineral Resources, China University of Geosciences, Wuhan 430074, China; 3 State Key Laboratory of Continental Geodynamics, Northwest University, Xi’an 710069, China; 4 Geological Survey of Hubei Province, Wuhan 430022, China. Chinese Science Bulletin. 2008(14)
本文编号:3664678
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