IGGCAS OpenIR  > 矿产资源研究院重点实验室
Petrogenesis of the Ultramafic Zone of the Stillwater Complex in North America: constraints from mineral chemistry and stable isotopes of Li and O
Su, Ben-Xun1,2,3; Bai, Yang1,2,3; Cui, Meng-Meng1,2,3; Wang, Jing1,2,3; Xiao, Yan2,4; Lenaz, Davide5; Sakyi, Patrick Asamoah6; Robinson, Paul T.1
2020-06-23
Source PublicationCONTRIBUTIONS TO MINERALOGY AND PETROLOGY
ISSN0010-7999
Volume175Issue:7Pages:20
AbstractTo investigate the petrogenesis of cyclic units in layered intrusions, we examined chromitite, dunite, poikilitic harzburgite and bronzitite from the Ultramafic Zone of the Stillwater Complex and measured stable isotopes of Li and O in their major minerals. The Li isotopes in olivine range from 4 to 26 parts per thousand in delta Li-7 with uniform Li contents of 1-3 ppm, whereas orthopyroxene and clinopyroxene have Li contents of 0.5-5 ppm and 4-8 ppm, and delta Li-7 ranges of -13 to 7 parts per thousand and -14 to -6 parts per thousand, respectively. The delta O-18 values vary from 4.91 to 5.72 parts per thousand in olivine, from 5.11 to 5.87 parts per thousand in orthopyroxene, and from 4.64 to 5.86 parts per thousand in clinopyroxene. For a given sample, olivine displays more variable and higher delta Li-7 but lower delta O-18 values than orthopyroxene, indicating that olivine experienced more extensive compositional modification after crystallization relative to orthopyroxene. The general Li and O isotopic compositions are interpreted as the result of re-equilibration between interstitial liquids, from which pyroxenes crystallized, and cumulus minerals. The inter-mineral and inter-sample isotopic variations correlate with mineral assemblages, crystal sizes and major and trace element compositions, revealing that the interstitial liquids varied compositionally mainly due to mixing between fractionated magma and newly injected primitive magma. Abrupt mineralogical and geochemical changes from silicate rocks to chromitites imply that hydrous fluids, which collected on chromite surfaces and were later released from chromite seams, played an additional, critical medium of chemical exchange between minerals in the chromitites.
KeywordLi isotopes Oxygen isotopes Chromite Olivine Pyroxene Layered intrusion
DOI10.1007/s00410-020-01707-y
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)
WOS KeywordLAYERED INTRUSIONS ; PERIDOTITE ZONE ; PODIFORM CHROMITITE ; BUSHVELD COMPLEX ; LITHIUM ; MANTLE ; CRYSTALLIZATION ; ORIGIN ; MONTANA ; FRACTIONATION
Language英语
Funding ProjectNational Natural Science Foundation of China[91755205] ; National Natural Science Foundation of China[41772055] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0801]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)
WOS Research AreaGeochemistry & Geophysics ; Mineralogy
WOS SubjectGeochemistry & Geophysics ; Mineralogy
WOS IDWOS:000544890600001
PublisherSPRINGER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/97135
Collection矿产资源研究院重点实验室
岩石圈演化国家重点实验室
Corresponding AuthorSu, Ben-Xun
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
5.Univ Trieste, Dept Math & Geosci, Via Weiss 8, I-34127 Trieste, Italy
6.Univ Ghana, Dept Earth Sci, POB LG 58, Legon, Ghana
First Author AffilicationKey Laboratory of Mineral Resources, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Mineral Resources, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Su, Ben-Xun,Bai, Yang,Cui, Meng-Meng,et al. Petrogenesis of the Ultramafic Zone of the Stillwater Complex in North America: constraints from mineral chemistry and stable isotopes of Li and O[J]. CONTRIBUTIONS TO MINERALOGY AND PETROLOGY,2020,175(7):20.
APA Su, Ben-Xun.,Bai, Yang.,Cui, Meng-Meng.,Wang, Jing.,Xiao, Yan.,...&Robinson, Paul T..(2020).Petrogenesis of the Ultramafic Zone of the Stillwater Complex in North America: constraints from mineral chemistry and stable isotopes of Li and O.CONTRIBUTIONS TO MINERALOGY AND PETROLOGY,175(7),20.
MLA Su, Ben-Xun,et al."Petrogenesis of the Ultramafic Zone of the Stillwater Complex in North America: constraints from mineral chemistry and stable isotopes of Li and O".CONTRIBUTIONS TO MINERALOGY AND PETROLOGY 175.7(2020):20.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Su, Ben-Xun]'s Articles
[Bai, Yang]'s Articles
[Cui, Meng-Meng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Su, Ben-Xun]'s Articles
[Bai, Yang]'s Articles
[Cui, Meng-Meng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Su, Ben-Xun]'s Articles
[Bai, Yang]'s Articles
[Cui, Meng-Meng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit Add to Technorati
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.