Arid
DOI10.1007/s12517-014-1563-z
Controls on quartzite bearing base-metal sulfide and invisible gold mineralization at Gabal Abu Houdied area, South Eastern Desert, Egypt
Ibrahim, W. S.1,2; Watanabe, K.1; Ibrahim, M. E.2; Yonezu, K.1
通讯作者Ibrahim, W. S.
来源期刊ARABIAN JOURNAL OF GEOSCIENCES
ISSN1866-7511
EISSN1866-7538
出版年2015
卷号8期号:7页码:4983-4997
英文摘要

The Neoproterozoic basement rocks cropping out in the Gabal Abu Houdied (GAH) area comprises mainly three lithotectonic assemblages; mafic-ultramafic ophiolitic rocks, island arc-related metasediment-metavolcanic rocks and syn-and post-tectonic intrusions. The base-metal sulfide and invisible gold mineralization are restricted to quartzites, which are considered as member of island arc-related metasediment rocks. The mineralized quartzite rocks are cropped out at three localities, at Wadi El Haussioum where cover a small area (0.25 km(2)), at Bir Abu Houdeid, cover small area (0.5 km(2)), and at Bir Shani (3.5 km long with different width ranging from 4 to 75 m). Based on textural characteristics and chemical features, documented by electron probe microanalysis (EPMA) and inductively coupled plasma mass spectrometry analyses (ICP-MS), two phases of sulfide minerals assemblages in the investigated quartzites of GAH area. An early mineralization phase includes pyrite, pyrrhotite, argentite (acanthite) and invisible gold, and the late phase, dominated by pyrite, galena, sphalerite, chalcopyrite, covelite, and +/- invisible gold. Analyses of the structural data collected from the quartzite rocks and surroundings indicated that the base-metal sulfide and associated gold mineralization in the GAH area are mostly controlled by D3 transperssional deformation event. This event is main Hamisana shear zone (HSZ) deformation event and characterized by transperssional stress regime, with sigma 1 trending E-W and sigma 3 trending N-S governed conjugate NNW sinistral and NNE-SSW dextral strike slip faulting.


英文关键词Gabal Abu Houdied Hamisana Pyrite Invisible gold
类型Article
语种英语
国家Japan ; Egypt
收录类别SCI-E
WOS记录号WOS:000357101200053
WOS关键词ARABIAN-NUBIAN SHIELD ; RED-SEA HILLS ; AFRICAN OROGEN ; STRUCTURAL CONTROLS ; SHEAR ZONE ; EVOLUTION ; SUDAN ; MINE ; CLASSIFICATION ; TECTONICS
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/185906
作者单位1.Kyushu Univ, Dept Earth Resources Engn, Fac Engn, Fukuoka 8190395, Japan;
2.Nucl Mat Author, Cairo, Egypt
推荐引用方式
GB/T 7714
Ibrahim, W. S.,Watanabe, K.,Ibrahim, M. E.,et al. Controls on quartzite bearing base-metal sulfide and invisible gold mineralization at Gabal Abu Houdied area, South Eastern Desert, Egypt[J],2015,8(7):4983-4997.
APA Ibrahim, W. S.,Watanabe, K.,Ibrahim, M. E.,&Yonezu, K..(2015).Controls on quartzite bearing base-metal sulfide and invisible gold mineralization at Gabal Abu Houdied area, South Eastern Desert, Egypt.ARABIAN JOURNAL OF GEOSCIENCES,8(7),4983-4997.
MLA Ibrahim, W. S.,et al."Controls on quartzite bearing base-metal sulfide and invisible gold mineralization at Gabal Abu Houdied area, South Eastern Desert, Egypt".ARABIAN JOURNAL OF GEOSCIENCES 8.7(2015):4983-4997.
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