IGGCAS OpenIR  > 岩石圈演化国家重点实验室
Unravelling the complexity of magma plumbing at Mount St. Helens: a new trace element partitioning scheme for amphibole
Humphreys, Madeleine C. S.1; Cooper, George F.1; Zhang, Jing1,2; Loewen, Matthew3,4; Kent, Adam J. R.3; Macpherson, Colin G.1; Davidson, Jon P.1
2019
发表期刊CONTRIBUTIONS TO MINERALOGY AND PETROLOGY
ISSN0010-7999
卷号174期号:1页码:15
摘要Volcanoes at subduction zones reside above complex magma plumbing systems, where individual magmatic components may originate and interact at a range of pressures. Because whole-rock compositions of subduction zone magmas are the integrated result of processes operating throughout the entire plumbing system, processes such as mixing, homogenisation and magma assembly during shallow storage can overprint the chemical signatures of deeper crustal processes. Whereas melt inclusions provide an effective way to study the uppermost 10-15km of the plumbing system, challenges remain in understanding magma intrusion, fractionation and hybridisation processes in the middle to lower crust (15-30km depth), which commonly involves amphibole crystallisation. Here, we present new insights into the mid-crustal plumbing system at Mount St. Helens, USA, using multiple regression methods to calculate trace element partition coefficients for amphibole phenocrysts, and thus infer the trace element compositions of their equilibrium melts. The results indicate vertically distributed crystal fractionation, dominated by amphibole at higher pressures and in intermediate melts, and by plagioclase at lower pressures. Variations in Nb, Zr and REE concentrations at intermediate SiO2 contents suggest repeated scavenging of partially remelted intrusive material in the mid-crust, and mixing with material from geochemically diverse sources. Amphibole is an effective probe for deep crustal magmatism worldwide, and this approach offers a new tool to explore the structure and chemistry of arc magmas, including those forming plutonic or cumulate materials that offer no other constraints on melt composition.
关键词Trace elements Partitioning Amphibole Subduction zones Mount St Helens Magma plumbing
DOI10.1007/s00410-018-1543-5
资助者Durham Doctoral Studentship (Durham University) ; Durham Doctoral Studentship (Durham University) ; China Scholarship Council ; China Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Royal Society University Research Fellowship ; Royal Society University Research Fellowship ; National Science Foundation ; National Science Foundation ; NERC Grant ; NERC Grant ; Durham Doctoral Studentship (Durham University) ; Durham Doctoral Studentship (Durham University) ; China Scholarship Council ; China Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Royal Society University Research Fellowship ; Royal Society University Research Fellowship ; National Science Foundation ; National Science Foundation ; NERC Grant ; NERC Grant ; Durham Doctoral Studentship (Durham University) ; Durham Doctoral Studentship (Durham University) ; China Scholarship Council ; China Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Royal Society University Research Fellowship ; Royal Society University Research Fellowship ; National Science Foundation ; National Science Foundation ; NERC Grant ; NERC Grant ; Durham Doctoral Studentship (Durham University) ; Durham Doctoral Studentship (Durham University) ; China Scholarship Council ; China Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Royal Society University Research Fellowship ; Royal Society University Research Fellowship ; National Science Foundation ; National Science Foundation ; NERC Grant ; NERC Grant
关键词[WOS]HIGH-FIELD-STRENGTH ; RARE-EARTH ; EXPERIMENTAL CONSTRAINTS ; PLAGIOCLASE PHENOCRYSTS ; DRIVEN CRYSTALLIZATION ; WASHINGTON CASCADES ; TITANIAN PARGASITE ; MELT ; ARC ; FRACTIONATION
语种英语
资助项目Durham Doctoral Studentship (Durham University) ; China Scholarship Council[201206170178] ; National Natural Science Foundation of China[41702362] ; Royal Society University Research Fellowship[UF140711] ; National Science Foundation[1425491] ; National Science Foundation[1028707] ; NERC Grant[NE/K010824/1]
资助者Durham Doctoral Studentship (Durham University) ; Durham Doctoral Studentship (Durham University) ; China Scholarship Council ; China Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Royal Society University Research Fellowship ; Royal Society University Research Fellowship ; National Science Foundation ; National Science Foundation ; NERC Grant ; NERC Grant ; Durham Doctoral Studentship (Durham University) ; Durham Doctoral Studentship (Durham University) ; China Scholarship Council ; China Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Royal Society University Research Fellowship ; Royal Society University Research Fellowship ; National Science Foundation ; National Science Foundation ; NERC Grant ; NERC Grant ; Durham Doctoral Studentship (Durham University) ; Durham Doctoral Studentship (Durham University) ; China Scholarship Council ; China Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Royal Society University Research Fellowship ; Royal Society University Research Fellowship ; National Science Foundation ; National Science Foundation ; NERC Grant ; NERC Grant ; Durham Doctoral Studentship (Durham University) ; Durham Doctoral Studentship (Durham University) ; China Scholarship Council ; China Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Royal Society University Research Fellowship ; Royal Society University Research Fellowship ; National Science Foundation ; National Science Foundation ; NERC Grant ; NERC Grant
WOS研究方向Geochemistry & Geophysics ; Mineralogy
WOS类目Geochemistry & Geophysics ; Mineralogy
WOS记录号WOS:000454787300003
出版者SPRINGER
引用统计
文献类型期刊论文
条目标识符http://ir.iggcas.ac.cn/handle/132A11/90258
专题岩石圈演化国家重点实验室
通讯作者Humphreys, Madeleine C. S.
作者单位1.Univ Durham, Dept Earth Sci, Durham DH1 3LE, England
2.Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing 100029, Peoples R China
3.Oregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97330 USA
4.US Geol Survey, Alaska Volcano Observ, Anchorage, AK 99508 USA
推荐引用方式
GB/T 7714
Humphreys, Madeleine C. S.,Cooper, George F.,Zhang, Jing,et al. Unravelling the complexity of magma plumbing at Mount St. Helens: a new trace element partitioning scheme for amphibole[J]. CONTRIBUTIONS TO MINERALOGY AND PETROLOGY,2019,174(1):15.
APA Humphreys, Madeleine C. S..,Cooper, George F..,Zhang, Jing.,Loewen, Matthew.,Kent, Adam J. R..,...&Davidson, Jon P..(2019).Unravelling the complexity of magma plumbing at Mount St. Helens: a new trace element partitioning scheme for amphibole.CONTRIBUTIONS TO MINERALOGY AND PETROLOGY,174(1),15.
MLA Humphreys, Madeleine C. S.,et al."Unravelling the complexity of magma plumbing at Mount St. Helens: a new trace element partitioning scheme for amphibole".CONTRIBUTIONS TO MINERALOGY AND PETROLOGY 174.1(2019):15.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Humphreys, Madeleine C. S.]的文章
[Cooper, George F.]的文章
[Zhang, Jing]的文章
百度学术
百度学术中相似的文章
[Humphreys, Madeleine C. S.]的文章
[Cooper, George F.]的文章
[Zhang, Jing]的文章
必应学术
必应学术中相似的文章
[Humphreys, Madeleine C. S.]的文章
[Cooper, George F.]的文章
[Zhang, Jing]的文章
相关权益政策
暂无数据
收藏/分享
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit Add to Technorati
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。