Integration of remote sensing and geochemical analysis of chromite bodies in the Logar Ophiolitic Complex, Southeast Afghanistan

IF 1.2 4区综合性期刊 Q3 MULTIDISCIPLINARY SCIENCES

Kuwait Journal of Science Pub Date : 2025-05-09 DOI:10.1016/j.kjs.2025.100427

Bilal Jan Haji Muhammad , Noor Rahman Rahmani , Muhammad Jalal Mohabbat , Ihtisham Islam , Imtiaz Ahmad , Wang Ping

{"title":"Integration of remote sensing and geochemical analysis of chromite bodies in the Logar Ophiolitic Complex, Southeast Afghanistan","authors":"Bilal Jan Haji Muhammad , Noor Rahman Rahmani , Muhammad Jalal Mohabbat , Ihtisham Islam , Imtiaz Ahmad , Wang Ping","doi":"10.1016/j.kjs.2025.100427","DOIUrl":null,"url":null,"abstract":"<div><div>Chromite, a significant mineral for chromium, is extensively dispersed toward the southeast and east regions of Afghanistan, particularly in Logar Province. Hosted in the lowest ultramafic rocks of the Logar Ophiolite Complex (LOC), the podiform-type chromite mineralization showcases varying textures from massive chromite pods to disseminated chromite crystals. The ultramafic rocks, predominantly dunite and harzburgite, are serpentinized, with chromite found microscopically exhibiting a granular texture. This study focuses on geochemical analysis to discern the petrology and mineralogy of chromite in the LOC, utilizing Landsat 8 Operational Land Imager (OLI). Through the False Color Composite (FCC) technique and Landsat 8 data, approximately 40 % of the Mohammad Agha district in Logar Province is identified as containing chromite bodies. The fieldwork validated Landsat 8 results, confirming the efficacy of the applied techniques. X-ray fluorescence (XRF) data further reveal that the mean percentage of chromite oxide within the studied samples ranges from 35 to 40 %. This integrated approach, combining Remote sensing (RS) and geochemical analysis, not only characterizes chromite occurrences but also contributes to improving lithological mapping, offering valuable insights for geological research and resource exploration.</div></div>","PeriodicalId":17848,"journal":{"name":"Kuwait Journal of Science","volume":"52 3","pages":"Article 100427"},"PeriodicalIF":1.2000,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Kuwait Journal of Science","FirstCategoryId":"103","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2307410825000719","RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}

引用次数: 0

Abstract

Chromite, a significant mineral for chromium, is extensively dispersed toward the southeast and east regions of Afghanistan, particularly in Logar Province. Hosted in the lowest ultramafic rocks of the Logar Ophiolite Complex (LOC), the podiform-type chromite mineralization showcases varying textures from massive chromite pods to disseminated chromite crystals. The ultramafic rocks, predominantly dunite and harzburgite, are serpentinized, with chromite found microscopically exhibiting a granular texture. This study focuses on geochemical analysis to discern the petrology and mineralogy of chromite in the LOC, utilizing Landsat 8 Operational Land Imager (OLI). Through the False Color Composite (FCC) technique and Landsat 8 data, approximately 40 % of the Mohammad Agha district in Logar Province is identified as containing chromite bodies. The fieldwork validated Landsat 8 results, confirming the efficacy of the applied techniques. X-ray fluorescence (XRF) data further reveal that the mean percentage of chromite oxide within the studied samples ranges from 35 to 40 %. This integrated approach, combining Remote sensing (RS) and geochemical analysis, not only characterizes chromite occurrences but also contributes to improving lithological mapping, offering valuable insights for geological research and resource exploration.

查看原文本刊更多论文

阿富汗东南部Logar蛇绿杂岩中铬铁矿体遥感与地球化学综合分析

铬铁矿是一种重要的铬矿物，广泛分布在阿富汗东南部和东部地区，特别是在洛加尔省。在Logar蛇绿岩杂岩（LOC）的最低超基性岩石中，脚状铬铁矿矿化表现出从块状铬铁矿豆荚到浸染状铬铁矿晶体的不同结构。超镁铁质岩石，主要是黑锰矿和暗锰矿，呈蛇纹石化，铬铁矿在显微镜下呈粒状结构。利用Landsat 8操作陆地成像仪（OLI）进行地球化学分析，识别LOC中铬铁矿的岩石学和矿物学特征。通过假色合成（FCC）技术和Landsat 8数据，洛加尔省Mohammad Agha地区约40%的地区被确定含有铬铁矿。实地工作验证了Landsat 8的结果，证实了所应用技术的有效性。x射线荧光（XRF）数据进一步显示，在所研究的样品中氧化铬铁矿的平均百分比在35%至40%之间。这种结合遥感和地球化学分析的综合方法不仅可以表征铬铁矿的产状，而且有助于改进岩性制图，为地质研究和资源勘探提供有价值的见解。

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分钟内获得全文求助全文

来源期刊

Kuwait Journal of Science MULTIDISCIPLINARY SCIENCES-

CiteScore

1.60

自引率

28.60%

发文量

132

期刊介绍： Kuwait Journal of Science (KJS) is indexed and abstracted by major publishing houses such as Chemical Abstract, Science Citation Index, Current contents, Mathematics Abstract, Micribiological Abstracts etc. KJS publishes peer-review articles in various fields of Science including Mathematics, Computer Science, Physics, Statistics, Biology, Chemistry and Earth & Environmental Sciences. In addition, it also aims to bring the results of scientific research carried out under a variety of intellectual traditions and organizations to the attention of specialized scholarly readership. As such, the publisher expects the submission of original manuscripts which contain analysis and solutions about important theoretical, empirical and normative issues.