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prospecting of the Zhule mineralization spot in Xizang: Evidence from short-wave infrared alteration
mineral mapping, columnId=1256260907185857297, journalTitle=Geology and Exploration, columnName=遥感地质专栏, runingTitle=null, highlight=null, articleAbstract=The Zhule area in Xizang is a newly discovered mineralization spot in the continental volcanic rock area in the southwest section of theBangongco-Nujiang belt. There are lithocap and mineralization clues on the surface, which reveals a great potential for prospecting. This articleconducted a detailed anatomical study on the lithocap in the Zhule area based on short-wave infrared technology. On the basis of identifying the types ofalteration in the region, the alteration mineral assemblages were determined, the spectral characteristics of typical alteration minerals were analyzed, andminerals spectral indicators were established to speculate the location of hydrothermal center. The research indicates that the lithocap is characterizedby strong silicification and sericitization, and the altered mineral assemblages mainly include six categories: sericite ± illite ± montmorillonite, sericite ±montmorillonite ± jarosite, sericite ± illite ± carbonate, sericite ± chlorite, alunite, pyrophyllite ± kaolinite ± dickite ± diaspore. Based on the analysis ofthe altered minerals and spectral characteristics theory of typical minerals, the identification of altered minerals that sericite with high SWIR-IC (>2.4),alunite with high Pos1480 (>1483 nm), and high Pos1430 (>1433 nm) can serve as spectral indicators for inferring hydrothermal center and narrowingthe exploration target area. Based on the short-wave infrared study of surface altered minerals in the Zhule area, one potential areas for hydrothermalcenter have been delineated, which can provide theoretical basis for subsequent deep mineral exploration., authors=null, authorsList=null, authorCompany=null, correspAuthors=null, authorNote=20250201.pdf, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1256260908389643067, articleId=1256260906443485997, tenantId=1146029695717560320, journalId=1256213323050663944, language=CN, title=西藏珠勒矿化点的发现与勘查——来自短波红外蚀变矿物填图的证据, columnId=1256260905998869249, journalTitle=地质与勘探, columnName=遥感地质专栏, runingTitle=null, highlight=null, articleAbstract=西藏珠勒地区是班公湖-怒江成矿带西南段陆相火山岩地区新发现的矿化点，地表发育蚀变岩帽与找矿线索，存在较大的找矿潜力。本文基于短波红外技术对珠勒地区蚀变岩帽开展精细解剖研究，在查明区域围岩蚀变类型的基础上厘定蚀变矿物组合，分析典型蚀变矿物波谱特征，建立指针矿物光谱勘查标识并预测热液中心位置。研究发现：珠勒地区地表以强烈的硅化、绢云母化为主，蚀变矿物组合主要表现为绢云母±伊利石±蒙脱石、绢云母±蒙脱石±黄钾铁矾、绢云母±伊利石±碳酸盐、绢云母±绿泥石、明矾石、叶蜡石±高岭石±地开石±水铝石等6个类别。结合蚀变矿物组合及标型矿物短波红外光谱特征机理性认识，揭示了绢云母高SWIR-IC（>2.4）、明矾石高Pos1480（>1483 nm） 及高Pos1430（>1433 nm） 能够作为推测热液中心的光谱依据缩小找矿靶区。本次基于珠勒地区地表蚀变矿物短波红外研究圈定出1处热源寻找潜力区，可为后续深部找矿勘查工作提供理论依据。, authors=白龙洋1,2 , 代晶晶1,2 , 刘治博2 , 宋 扬1,2 , 王 楠2 , 陈 伟1,2 , authorsList=白龙洋, 代晶晶, 刘治博, 宋 扬, 王楠, 陈伟, authorCompany=1 中国地质科学院矿
产资源研究所，自然资源部成矿作用与资源评价重点实验室，北京 100037;
地质与勘探
|遥感地质专栏
2025
, 61
(2) :
221
-229
西藏珠勒矿化点的发现与勘查——来自短波红外蚀变矿物填图的证据
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白龙洋1,2 , 代晶晶1,2 , 刘治博2 , 宋 扬1,2 , 王 楠2 , 陈 伟1,2
作者信息
1 中国地质科学院矿
产资源研究所，自然资源部成矿作用与资源评价重点实验室，北京 100037;
作者简介:
白龙洋（2000年-），女，在读硕士研究生，地球探测与信息技术专业。E-mail：bailongyang111@163.com。
代晶晶（1982年-），女，研究员，2013年毕业于中国地质大学（北京），地图制图学与地理信息系统工程专业，博士生导师，主要从事遥感地质方面研究工作。E-mail：daijingjing863@sina.com。
Discovery and
prospecting of the Zhule mineralization spot in Xizang: Evidence from short-wave infrared alteration
mineral mapping
Affiliations
doi: 10.12134/j.dzykt.2025.02.001
文章导航
西藏珠勒地区是班公湖-怒江成矿带西南段陆相火山岩地区新发现的矿化点，地表发育蚀变岩帽与找矿线索，存在较大的找矿潜力。本文基于短波红外技术对珠勒地区蚀变岩帽开展精细解剖研究，在查明区域围岩蚀变类型的基础上厘定蚀变矿物组合，分析典型蚀变矿物波谱特征，建立指针矿物光谱勘查标识并预测热液中心位置。研究发现：珠勒地区地表以强烈的硅化、绢云母化为主，蚀变矿物组合主要表现为绢云母±伊利石±蒙脱石、绢云母±蒙脱石±黄钾铁矾、绢云母±伊利石±碳酸盐、绢云母±绿泥石、明矾石、叶蜡石±高岭石±地开石±水铝石等6个类别。结合蚀变矿物组合及标型矿物短波红外光谱特征机理性认识，揭示了绢云母高SWIR-IC（>2.4）、明矾石高Pos1480（>1483 nm） 及高Pos1430（>1433 nm） 能够作为推测热液中心的光谱依据缩小找矿靶区。本次基于珠勒地区地表蚀变矿物短波红外研究圈定出1处热源寻找潜力区，可为后续深部找矿勘查工作提供理论依据。
短波红外光谱
/
蚀变矿物
/
找矿勘查
/
珠勒
/
西藏
The Zhule area in Xizang is a newly discovered mineralization spot in the continental volcanic rock area in the southwest section of theBangongco-Nujiang belt. There are lithocap and mineralization clues on the surface, which reveals a great potential for prospecting. This articleconducted a detailed anatomical study on the lithocap in the Zhule area based on short-wave infrared technology. On the basis of identifying the types ofalteration in the region, the alteration mineral assemblages were determined, the spectral characteristics of typical alteration minerals were analyzed, andminerals spectral indicators were established to speculate the location of hydrothermal center. The research indicates that the lithocap is characterizedby strong silicification and sericitization, and the altered mineral assemblages mainly include six categories: sericite ± illite ± montmorillonite, sericite ±montmorillonite ± jarosite, sericite ± illite ± carbonate, sericite ± chlorite, alunite, pyrophyllite ± kaolinite ± dickite ± diaspore. Based on the analysis ofthe altered minerals and spectral characteristics theory of typical minerals, the identification of altered minerals that sericite with high SWIR-IC (>2.4),alunite with high Pos1480 (>1483 nm), and high Pos1430 (>1433 nm) can serve as spectral indicators for inferring hydrothermal center and narrowingthe exploration target area. Based on the short-wave infrared study of surface altered minerals in the Zhule area, one potential areas for hydrothermalcenter have been delineated, which can provide theoretical basis for subsequent deep mineral exploration.
short-wave infrared spectrum
/
altered minerals
/
prospecting exploration
/
Zhule
/
Xizang
白龙洋, 代晶晶, 刘治博, 宋 扬, 王楠, 陈伟.
西藏珠勒矿化点的发现与勘查——来自短波红外蚀变矿物填图的证据.
地质与勘探,
2025
, 61
(2)
: 221
-229
.
DOI: 10.12134/j.dzykt.2025.02.001
.
Discovery and
prospecting of the Zhule mineralization spot in Xizang: Evidence from short-wave infrared alteration
mineral mapping[J].
Geology and Exploration ,
2025
, 61
(2)
: 221
-229
.
DOI: 10.12134/j.dzykt.2025.02.001
参考文献
引证文献
白龙洋, 代晶晶, 王楠, 李宝龙, 刘治博, 李志军, 陈伟. 2024. 基于GF-5卫星的西藏珠勒-芒拉地区矿物蚀变信息提取及找矿前景分析[J]. 中国地质, 51(3): 995-1007.
2025年第61卷第2期
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2种不同金属材料的力学参数
科 属数 种数 占总种数比例 属 种数 占总种数比例 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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