Depth-dependent Variations in Elemental and Mineral Distribution in the Deep Oceanic Floor Sediments (WP21GPC04) near the Mariana Trench in the Western Pacific Ocean

IF 0.4 Q4 GEOLOGY Economic and Environmental Geology Pub Date : 2023-10-30 DOI:10.9719/eeg.2023.56.5.581
Junte Heo, Seohee Yun, Jonguk Kim, Young Tak Ko, Yongjae Lee
{"title":"Depth-dependent Variations in Elemental and Mineral Distribution in the Deep Oceanic Floor Sediments (WP21GPC04) near the Mariana Trench in the Western Pacific Ocean","authors":"Junte Heo, Seohee Yun, Jonguk Kim, Young Tak Ko, Yongjae Lee","doi":"10.9719/eeg.2023.56.5.581","DOIUrl":null,"url":null,"abstract":"This study reports depth-dependent elemental distribution and mineral abundance of the oceanic sediment sample (WP21GPC04) near the Mariana Trench collected during the WP21 expedition in 2021. The elemental distribution determined by μ-XRF shows no significant differences with varying depth, with an average SiO 2 53.91 wt%, FeO 4.48 wt%, Al 2 O 3 16.56 wt%, MgO 2.56 wt%, CaO 4.79 wt%, Na 2 O 3.52 wt%, K 2 O 5.48 wt%, similar to the average chemical composition of global subducting sediments (GLOSS). The mineral abundances analyzed using synchrotron XRD, however, vary with depth. While quartz, mica, and plagioclase were identified at all depths, chlorite was found at shallow depths, and zeolite group minerals, phillipsite and heulandite, showed a gradual change in phase fraction with depth. This suggests a change in sedimentation and alteration environments in the region, or the potential for coexistence emerges due to similar sediment stability. Overall, this study will provide a basis for the future investigations on the evolution of sedimentary environment near the Mariana Trench in the western Pacific Ocean and the phase distribution and the behavior of subducting oceanic sediments, which will affect the lithological and geochemical characteristics of the Mariana susduction system.","PeriodicalId":44811,"journal":{"name":"Economic and Environmental Geology","volume":null,"pages":null},"PeriodicalIF":0.4000,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Economic and Environmental Geology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.9719/eeg.2023.56.5.581","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GEOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

This study reports depth-dependent elemental distribution and mineral abundance of the oceanic sediment sample (WP21GPC04) near the Mariana Trench collected during the WP21 expedition in 2021. The elemental distribution determined by μ-XRF shows no significant differences with varying depth, with an average SiO 2 53.91 wt%, FeO 4.48 wt%, Al 2 O 3 16.56 wt%, MgO 2.56 wt%, CaO 4.79 wt%, Na 2 O 3.52 wt%, K 2 O 5.48 wt%, similar to the average chemical composition of global subducting sediments (GLOSS). The mineral abundances analyzed using synchrotron XRD, however, vary with depth. While quartz, mica, and plagioclase were identified at all depths, chlorite was found at shallow depths, and zeolite group minerals, phillipsite and heulandite, showed a gradual change in phase fraction with depth. This suggests a change in sedimentation and alteration environments in the region, or the potential for coexistence emerges due to similar sediment stability. Overall, this study will provide a basis for the future investigations on the evolution of sedimentary environment near the Mariana Trench in the western Pacific Ocean and the phase distribution and the behavior of subducting oceanic sediments, which will affect the lithological and geochemical characteristics of the Mariana susduction system.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
西太平洋马里亚纳海沟附近深海海底沉积物中元素和矿物分布的深度变化(WP21GPC04
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
CiteScore
0.70
自引率
33.30%
发文量
33
期刊介绍: The Economic and Environmental Geology (Econ. Environ. Geol.) is the official journal of the Korean Society of Economic and Environmental Geology. The prime focus of the journal will remain on high-impact original research and reviews in the fields of ore deposits, economic and environmental geology of the solid Earth at all scales. To better represent the changes we face today, Econ. Environ. Geol. particularly encourages submission of papers based on the integration of a multitude of geophysical, geological, geochemical, hydrogeological, mineralogical, and applied geological approaches. Within this space, we are particularly keen to advance roles of Econ. Environ. Geol. in delivering scientific solutions to the pressing issues of our time, namely in reducing our vulnerability to the ''solid-earth'' natural hazards and in resource development applications. With growing demand for access to Earth''s resources and urgent needs to seek new solutions for dealing with harmful waste, we have enormous benefits to be gained from better a understanding of the physics of this extraordinary dynamic planet.
期刊最新文献
Teleseismic Travel Time Tomography for the Mantle Velocity Structure Beneath the Melanesian Region Petrographic Study of Mn-bearing Gondite (Birimian) of Téra Area in the Leo-Man Shield (West African Craton) in Niger. Characteristics of Ground-Penetrating Radar (GPR) Radargrams with Variable Antenna Orientation Structural Geometry of a Regional-scale Overturned Fold in the Daecheong Island, Central-western Korean Peninsula Analysis of the Effects of Recycling and Reuse of Used Electric Vehicle Batteries in Korea
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1