Article(id=1307086088883958360, tenantId=1146029695717560320, journalId=1306274195778404443, issueId=1307086088166732376, articleNumber=null, orderNo=null, doi=10.12401/j.nwg.2025183, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1768492800000, receivedDateStr=2026-01-16, revisedDate=1773590400000, revisedDateStr=2026-03-16, acceptedDate=1774800000000, acceptedDateStr=2026-03-30, onlineDate=1789563208074, onlineDateStr=2026-09-16, pubDate=1787155200000, pubDateStr=2026-08-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1789563208074, onlineIssueDateStr=2026-09-16, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1789563208074, creator=13701087609, updateTime=1789563208074, updator=13701087609, issue=Issue{id=1307086088166732376, tenantId=1146029695717560320, journalId=1306274195778404443, year='2026', volume='59', issue='4', pageStart='1', pageEnd='386', issueExtLink='null', onlineDate='null', pubDate='1787155200000', pubDateStr='2026-08-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1789563207904, creator='13701087609', updateTime=1789616196824, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1307308339885531645, tenantId=1146029695717560320, journalId=1306274195778404443, issueId=1307086088166732376, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1307308339885531646, tenantId=1146029695717560320, journalId=1306274195778404443, issueId=1307086088166732376, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=201, endPage=213, ext={EN=ArticleExt(id=1307086089144005209, articleId=1307086088883958360, tenantId=1146029695717560320, journalId=1306274195778404443, language=EN, title=Brief Description of Geological-Tectonic Evolution and Metallogenesis at Kerkebet and Adjacent Areas in Eritrea, columnId=null, journalTitle=Northwestern Geology, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Located in the Augaro-Adobha metallogenic belt in the Nubian terrane, the Kerkebet exploration area shows superior metallogenic conditions in Eritrea. Recent years, major breakthroughs have been made in this exploration area, and the Mier medium-sized gold deposit has been found and evaluated. It is also found by field investigation that many target areas (e.g., Shukula, Locotat, Yasiney, Koken et al.) in this area show great gold polymetallic prospecting potential, and the mineralization is obviously controlled by geological-tectonic evolution. However, due to the limitation of previous basic geological survey and comprehensive researches, this region has not yet carried out systematic studies on geological-tectonic evolution, which seriously restricts the prospecting exploration and theoretical guidance. Based on this, after systematically sorting out the existing data of this region, this paper adopts the "multi-island-arc-basin system" tectonic theory to re-divide the previous Nakfa terrane into three new tectonic units (Barka magmatic arc, Kerkebet subduction accretionary complex, and Nakfa magmatic arc), among which the Kerkebet subduction accretionary complex was further divided into three second tectonic units, and reveals the relationship between tectonic evolution stages and different gold deposit types of the Kerkebet subduction accretion complex belt, combined with field investigations and researches. We also construct the tectonic-stratigraphic framework of this region, based on the fact that different tectonic units correspond to similar or different rock groups/segments. According to the fact that specific deposits have the characteristics of reflecting the temporal-spatial specificity of the tectonic environment, we also constructed the tectonic-mineralization model based on regional deposit types and distribution. These researches will not only provide the basis for deepening the theory of regional tectonics-metallogenesis, but also point out the directions for the next prospecting and exploration practice at Kerkebet.
, authors=Shanggui LIU
1, Xiangfei ZHANG
2, 3, 4, 5, *, Zhengbin GOU
2, Xuanyu CHEN
1, Lili JIANG
2, Li CHEN
2, Chenyang LIU
1, Fuhua YANG
2, 5, Xiaoli WANG
2, 5, authorsList=Shanggui LIU, Xiangfei ZHANG, Zhengbin GOU, Xuanyu CHEN, Lili JIANG, Li CHEN, Chenyang LIU, Fuhua YANG, Xiaoli WANG, authorCompany=null, correspAuthors=Xiangfei ZHANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright © 2026 Northwestern Geology. All rights reserved., 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=1307086092470088297, articleId=1307086088883958360, tenantId=1146029695717560320, journalId=1306274195778404443, language=CN, title=厄立特里亚Kerkebet及邻区地质构造演化及成矿作用简述, columnId=1307086089244668506, journalTitle=西北地质, columnName=境外地质矿产调查研究, runingTitle=null, highlight=null, articleAbstract=
厄立特里亚Kerkebet勘查区位于努比亚地体内Augaro-Adobha成矿带,成矿条件优越。近年来在该区的找矿勘查取得重大突破,发现评价了Mier中型金矿床。调查显示勘查区内多个目标区(Shukula、Locotat、Yasiney、Koken等)均显示较大的金多金属矿找矿潜力,成矿作用明显受地质构造演化控制。然而,受基础地质调查和综合研究程度限制,该区域尚未开展系统的地质构造演化调查和研究工作,严重制约了区域及Kerkebet勘查区的找矿勘查和理论指导。基于此,笔者通过系统梳理区域及Kerkebet勘查区已有资料,结合野外地质调查研究,采用“多岛弧盆系”构造理论对以往的Nakfa地体重新划分了区域构造单元,划分出①Barka岩浆弧、②Kerkebet俯冲增生杂岩带、③Nakfa岩浆弧等3个一级构造单元;对金多金属矿体主要赋存的Kerkebet俯冲增生杂岩带进一步划分出3个二级构造单元;揭示Kerkebet俯冲增生杂岩带构造演化阶段与不同矿化类型金矿床形成的耦合关系;基于不同的构造单元对应相似的或不同的岩组/段,构建了Kerkebet增生杂岩带构造−地层格架。该区特定矿床具有反映大地构造环境时空专属性的特点,结合区域矿床类型组合及分布情况,构建了该区构造演化−成矿作用模式。研究为深化区域构造−成矿作用理论提供基础依据,为Kerkebet勘查区下一步找矿勘查实践指明方向。
, authors=刘尚贵
1, 张向飞
2, 3, 4, 5, *, 苟正彬
2, 陈宣谕
1, 姜丽莉
2, 陈莉
2, 刘晨阳
1, 杨福华
2, 5, 王小丽
2, 5, authorsList=刘尚贵, 张向飞, 苟正彬, 陈宣谕, 姜丽莉, 陈莉, 刘晨阳, 杨福华, 王小丽, authorCompany=null, correspAuthors=张向飞, authorNote=
, correspAuthorsNote=
, copyrightStatement=版权所有©《西北地质》编辑部 2026, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=JXOQzOOAKVAQmNWmRP43ww==, magXml=CYjB7QWDx3SA/LdYlo9/Cw==, pdfUrl=null, pdf=DJ6Tfl/MDlgl1WLb33UIQw==, pdfFileSize=5815835, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=TDxzqlN0FeZp2hnqjvDypw==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=hl9zc1s6984/hrMSAk0RBw==, mapNumber=null, fund=null)}, authors=[Author(id=1307086093229257338, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=573665231@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1307086093329920636, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, authorId=1307086093229257338, language=EN, stringName=Shanggui LIU, firstName=Shanggui, middleName=null, lastName=LIU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1Shudao Investment Group Limited Liability Company, Chengdu 610094, Sichuan, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1307086093409612413, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, authorId=1307086093229257338, language=CN, stringName=刘尚贵, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1蜀道矿业集团有限责任公司,四川 成都 610094, bio={"content":"
刘尚贵(1988−),男,高级工程师,主要从事地质矿产勘查和研究。E−mail:573665231@qq.com
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刘尚贵(1988−),男,高级工程师,主要从事地质矿产勘查和研究。E−mail:573665231@qq.com
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1蜀道矿业集团有限责任公司,四川 成都 610094)])]), Author(id=1307086093480915583, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=zhangfei1895@163.com, emailSecond=null, emailThird=null, correspondingAuthor=1, authorType=1, ext={EN=AuthorExt(id=1307086093573190276, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, authorId=1307086093480915583, language=EN, stringName=Xiangfei ZHANG, firstName=Xiangfei, middleName=null, lastName=ZHANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, 3, 4, 5, *, address=
2Chengdu Center of China Geological Survey / Geosciences Innovation Center of Southwest China, Chengdu 610218, Sichuan, China
3Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
4Xi’an Center of China Geological Survey / Geosciences Innovation Center of Northwest China, Xi’an 710119, Shaanxi, China
5School of Earth and Planetary Science, Chengdu University of Technology, Chengdu 610059, Sichuan, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1307086093648687749, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, authorId=1307086093480915583, language=CN, stringName=张向飞, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, 3, 4, 5, *, address=
2中国地质调查局成都地质调查中心/西南地质科技创新中心,四川 成都 610218
3中国科学院地质与地球物理研究所,北京 100029
4中国地质调查局西安地质调查中心/西北地质科技创新中心,陕西 西安 710119
5成都理工大学地球与行星科学学院,四川 成都 610059, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1307086092843381357, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, xref=2, ext=[AuthorCompanyExt(id=1307086092847575662, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, companyId=1307086092843381357, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2Chengdu Center of China Geological Survey / Geosciences Innovation Center of Southwest China, Chengdu 610218, Sichuan, China), AuthorCompanyExt(id=1307086092855964271, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, companyId=1307086092843381357, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2中国地质调查局成都地质调查中心/西南地质科技创新中心,四川 成都 610218)]), AuthorCompany(id=1307086092931461744, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, xref=3, ext=[AuthorCompanyExt(id=1307086092939850353, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, companyId=1307086092931461744, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China), AuthorCompanyExt(id=1307086092948238962, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, companyId=1307086092931461744, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3中国科学院地质与地球物理研究所,北京 100029)]), AuthorCompany(id=1307086093040513651, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, xref=4, ext=[AuthorCompanyExt(id=1307086093048902260, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, companyId=1307086093040513651, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
4Xi’an Center of China Geological Survey / Geosciences Innovation Center of Northwest China, Xi’an 710119, Shaanxi, China), AuthorCompanyExt(id=1307086093057290869, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, companyId=1307086093040513651, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
4中国地质调查局西安地质调查中心/西北地质科技创新中心,陕西 西安 710119)]), AuthorCompany(id=1307086093132788342, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, xref=5, ext=[AuthorCompanyExt(id=1307086093141176951, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, companyId=1307086093132788342, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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5成都理工大学地球与行星科学学院,四川 成都 610059)])]), Author(id=1307086093732573831, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1307086093808071305, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, authorId=1307086093732573831, language=EN, stringName=Zhengbin GOU, firstName=Zhengbin, middleName=null, lastName=GOU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
2Chengdu Center of China Geological Survey / Geosciences Innovation Center of Southwest China, Chengdu 610218, Sichuan, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1307086093942289034, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, authorId=1307086093732573831, language=CN, stringName=苟正彬, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
2中国地质调查局成都地质调查中心/西南地质科技创新中心,四川 成都 610218, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1307086092843381357, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, xref=2, ext=[AuthorCompanyExt(id=1307086092847575662, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, companyId=1307086092843381357, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2中国地质调查局成都地质调查中心/西南地质科技创新中心,四川 成都 610218)])]), Author(id=1307086094021980812, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1307086094105866894, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, authorId=1307086094021980812, language=EN, stringName=Xuanyu CHEN, firstName=Xuanyu, middleName=null, lastName=CHEN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1Shudao Investment Group Limited Liability Company, Chengdu 610094, Sichuan, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1307086094202335887, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, authorId=1307086094021980812, language=CN, stringName=陈宣谕, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1蜀道矿业集团有限责任公司,四川 成都 610094, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1307086092725940842, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, xref=1, ext=[AuthorCompanyExt(id=1307086092730135147, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, companyId=1307086092725940842, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1蜀道矿业集团有限责任公司,四川 成都 610094)])]), Author(id=1307086094282027665, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, orderNo=4, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1307086094424634003, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, authorId=1307086094282027665, language=EN, stringName=Lili JIANG, firstName=Lili, middleName=null, lastName=JIANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
2Chengdu Center of China Geological Survey / Geosciences Innovation Center of Southwest China, Chengdu 610218, Sichuan, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1307086094508520084, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, authorId=1307086094282027665, language=CN, stringName=姜丽莉, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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Gold deposits distribution in Nubia Terrane and Eritrea, figureFileSmall=JkRS7NyIbeHSmNSD1eiBeQ==, figureFileBig=TDxzqlN0FeZp2hnqjvDypw==, tableContent=null), ArticleFig(id=1307086098665075384, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, language=CN, label=图1, caption=
努比亚地体及厄立特里亚金矿产分布图(据Johnson et al., 2011;2017修改)a. 阿拉伯–努比亚地体金矿点分布图;b. 厄立特里亚成矿区带及金矿分布图
, figureFileSmall=JkRS7NyIbeHSmNSD1eiBeQ==, figureFileBig=TDxzqlN0FeZp2hnqjvDypw==, tableContent=null), ArticleFig(id=1307086098870596281, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, language=EN, label=Fig.2, caption=
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厄立特里亚西北部构造简图, figureFileSmall=URpf6YC4Ih1CN+eb1oMI0Q==, figureFileBig=2mkPTPqRNTHjPgqyWlRxkw==, tableContent=null), ArticleFig(id=1307086099076117179, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, language=EN, label=Fig.3, caption=
Typical field photographs and photomicrographs at Kerkebet exploration area, figureFileSmall=SbJcp0pxeMOoivVKiyYUBw==, figureFileBig=9VxdUKxv0qIvkmzhBoCjrA==, tableContent=null), ArticleFig(id=1307086099164197564, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, language=CN, label=图3, caption=
Kerkebet勘查区典型岩石手标本及镜下照片a~c. 绿泥石片岩手标本及镜下单偏光和正交光下照片;d~f. 大理岩手标本及镜下单偏光和正交光下照片;g~i. 白云母石英片岩手标本及镜下单偏光和正交光下照片; j~l. 含蓝晶石片岩手标本及镜下单偏光和正交光下照片;Q. 石英;Chl. 绿泥石;Ms. 白云母;Dol. 白云石;Ser. 绢云母;Ky. 蓝晶石
, figureFileSmall=SbJcp0pxeMOoivVKiyYUBw==, figureFileBig=9VxdUKxv0qIvkmzhBoCjrA==, tableContent=null), ArticleFig(id=1307086099235500733, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, language=EN, label=Fig.4, caption=
Typical deformation structure at Kerkebet area, figureFileSmall=mU2e2tD55BrfpYqU2+ZA8Q==, figureFileBig=NfWnstl7iQr8HKF4+PkYwQ==, tableContent=null), ArticleFig(id=1307086099302609598, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, language=CN, label=图4, caption=
克尔克贝特勘查区变形构造a. Shukula露头韧性剪切变形;b. Yasiney探槽中褐铁矿体褶皱变形; c. Yasinay钻孔岩心中细粒硫化物纹层与变基性火山岩同步褶曲变形
, figureFileSmall=mU2e2tD55BrfpYqU2+ZA8Q==, figureFileBig=NfWnstl7iQr8HKF4+PkYwQ==, tableContent=null), ArticleFig(id=1307086099390689983, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, language=EN, label=Fig.5, caption=
The sketch of KZK17601 at 162.5 meter deep and exploration profile at Koken target area, figureFileSmall=5/1UnTca+H+TUXlngX1H2w==, figureFileBig=H6hbnnd5DdsD/L+k+k5wIw==, tableContent=null), ArticleFig(id=1307086099491353280, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, language=CN, label=图5, caption=
Koken目标区KZK17601钻孔162.5m处岩心素描与勘查剖面图Ser-Sch. 绿泥绢云母化片岩
, figureFileSmall=5/1UnTca+H+TUXlngX1H2w==, figureFileBig=H6hbnnd5DdsD/L+k+k5wIw==, tableContent=null), ArticleFig(id=1307086099592016577, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, language=EN, label=Fig.6, caption=
The geological lithology map of Kerkebet exploration area, figureFileSmall=EdjcAv12HdVQ5+l/ZXCh4w==, figureFileBig=LYbtFvPsveNG0p8UKg9yGw==, tableContent=null), ArticleFig(id=1307086099675902658, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, language=CN, label=图6, caption=
Kerkebet勘查区地质岩性图, figureFileSmall=EdjcAv12HdVQ5+l/ZXCh4w==, figureFileBig=LYbtFvPsveNG0p8UKg9yGw==, tableContent=null), ArticleFig(id=1307086101341041347, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, language=EN, label=Fig.7, caption=
The metallogenic modal of Kerkebet exploration area, figureFileSmall=Nw3LRO5X/DGon38mksglOA==, figureFileBig=x7FvfMtU84gGij+m1ae07A==, tableContent=null), ArticleFig(id=1307086101412344517, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, language=CN, label=图7, caption=
Kerkebet成矿模式图(据Li et al., 2021修改)a.莫桑比克洋盆扩张–初始矿源层(岩);b.莫桑比克洋盆俯冲阶段洋内弧VMS矿床形成;c.弧−陆碰撞阶段成矿作用;d.碰撞−推覆−剪切构造成矿作用;①.VMS型矿床;②. 斑岩–矽卡岩型矿床;③. 构造蚀变岩型矿床
, figureFileSmall=Nw3LRO5X/DGon38mksglOA==, figureFileBig=x7FvfMtU84gGij+m1ae07A==, tableContent=null), ArticleFig(id=1307086101487841990, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, language=EN, label=Tab.1, caption=
Division framework of tectonic units of NW Eritrea
, figureFileSmall=null, figureFileBig=null, tableContent=
| 一级构造单元 | 二级构造单元 |
| Barka岩浆弧 | |
| Kerkebet俯冲增生杂岩带 | Pushidong蛇绿混杂岩带 Shukula洋内弧增生杂岩带 Locotat洋岛–海山增生杂岩带 |
| Nakfa岩浆弧 | |
), ArticleFig(id=1307086101584310983, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, language=CN, label=表1, caption=
厄立特里亚西北部构造单元划分表
, figureFileSmall=null, figureFileBig=null, tableContent=
| 一级构造单元 | 二级构造单元 |
| Barka岩浆弧 | |
| Kerkebet俯冲增生杂岩带 | Pushidong蛇绿混杂岩带 Shukula洋内弧增生杂岩带 Locotat洋岛–海山增生杂岩带 |
| Nakfa岩浆弧 | |
), ArticleFig(id=1307086101659808456, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, language=EN, label=Tab.2, caption=
The tectonic-stratum tempo-spatial framework at Kerkebet exploration area
, figureFileSmall=null, figureFileBig=null, tableContent=
| 时代 | 年龄 (Ma) | Barka缝合带 | Kerkebetr增生杂岩带 | Baden剪切带 |
| | Koken | Yasinay | Locotat | Mier | Camp | Aradaib |
| Q | 河流冲积平原 | | 河流、冲积平原 | 河流 | 河流 | 河流 | 河流、冲积平原 | 河流、冲积平原 | 河流、冲积平原 |
| 埃迪卡拉纪 | 550 | |
| 640 |
| 成冰纪 | 680 |
| 720 | Barka 蛇绿混杂岩群(Barka Group) | 变凝灰岩岩组 | Hagar 增生杂岩群(Hagar Group) | 白云母片岩岩组 | | | | | | 砂板岩组 | Baden 构造混杂岩群(Baden Group) |
| 拉伸纪 | 760 | 变长英质岩组 | 变长英质岩组 | 变长英质岩组 | 变长英质岩组 | 变长英质岩组 | 变长英质岩组 | 变长英质岩组 | 变凝灰质岩组 |
| 800 | 变玄武岩岩组 | ? | ? | 仅钻孔见大理岩 | 大理岩组 | ? | ? | 大理岩组 |
| 变镁铁质岩组(Ⅱ) | 变镁铁质岩组(Ⅱ) | 变镁铁质岩组(Ⅱ) | 蓝晶石绢云石英片岩岩组 | 变镁铁质岩组(Ⅱ) | 变镁铁质岩组(Ⅱ) | 变镁铁质岩组(Ⅱ) |
| 850 | 块状硫化物层(含喷气岩) | 块状硫化物层(含喷气岩) | 地表为硅化蚀变带 | 块状硫化物层(含喷气岩) | 块状硫化物层(含喷气岩) | 地表为杂色蚀变带 |
| 双峰式火山岩段 | 双峰式火山岩段 | 双峰式火山岩段 | 双峰式火山岩段 | 双峰式火山岩段 | 双峰式火山岩段 | 双峰式火山岩段 |
| 磁铁玄武岩层 | 变镁铁质岩组(Ⅰ) | 变镁铁质岩组(Ⅰ) | 变镁铁质岩组(Ⅰ) | ? | 变镁铁质岩组(Ⅰ) | 变镁铁质岩组(Ⅰ) | 变镁铁质岩组(Ⅰ) |
| 900 | 变基性–超基性 岩组 |
| 1000 | |
), ArticleFig(id=1307086101743694537, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, language=CN, label=表2, caption=
Kerkebet勘查区构造–地层时空格架
, figureFileSmall=null, figureFileBig=null, tableContent=
| 时代 | 年龄 (Ma) | Barka缝合带 | Kerkebetr增生杂岩带 | Baden剪切带 |
| | Koken | Yasinay | Locotat | Mier | Camp | Aradaib |
| Q | 河流冲积平原 | | 河流、冲积平原 | 河流 | 河流 | 河流 | 河流、冲积平原 | 河流、冲积平原 | 河流、冲积平原 |
| 埃迪卡拉纪 | 550 | |
| 640 |
| 成冰纪 | 680 |
| 720 | Barka 蛇绿混杂岩群(Barka Group) | 变凝灰岩岩组 | Hagar 增生杂岩群(Hagar Group) | 白云母片岩岩组 | | | | | | 砂板岩组 | Baden 构造混杂岩群(Baden Group) |
| 拉伸纪 | 760 | 变长英质岩组 | 变长英质岩组 | 变长英质岩组 | 变长英质岩组 | 变长英质岩组 | 变长英质岩组 | 变长英质岩组 | 变凝灰质岩组 |
| 800 | 变玄武岩岩组 | ? | ? | 仅钻孔见大理岩 | 大理岩组 | ? | ? | 大理岩组 |
| 变镁铁质岩组(Ⅱ) | 变镁铁质岩组(Ⅱ) | 变镁铁质岩组(Ⅱ) | 蓝晶石绢云石英片岩岩组 | 变镁铁质岩组(Ⅱ) | 变镁铁质岩组(Ⅱ) | 变镁铁质岩组(Ⅱ) |
| 850 | 块状硫化物层(含喷气岩) | 块状硫化物层(含喷气岩) | 地表为硅化蚀变带 | 块状硫化物层(含喷气岩) | 块状硫化物层(含喷气岩) | 地表为杂色蚀变带 |
| 双峰式火山岩段 | 双峰式火山岩段 | 双峰式火山岩段 | 双峰式火山岩段 | 双峰式火山岩段 | 双峰式火山岩段 | 双峰式火山岩段 |
| 磁铁玄武岩层 | 变镁铁质岩组(Ⅰ) | 变镁铁质岩组(Ⅰ) | 变镁铁质岩组(Ⅰ) | ? | 变镁铁质岩组(Ⅰ) | 变镁铁质岩组(Ⅰ) | 变镁铁质岩组(Ⅰ) |
| 900 | 变基性–超基性 岩组 |
| 1000 | |
), ArticleFig(id=1307086101831774922, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, language=EN, label=Tab.3, caption=
Stage division of accretionary complex tectonic evolution at Kerkebet exploration area
, figureFileSmall=null, figureFileBig=null, tableContent=
| 阶段序号 | 地质 时代 | 构造演化阶段 | 地质年龄(Ma) | 主要地质特征 | 主要成矿作用及期次 | 备注 |
| Ⅴ | 埃迪卡拉纪 (震旦纪) | 造陆运动、风化剥蚀 | 550~500 | | | 是否发育后碰撞伸展? |
| Ⅳ | 泛非造山运动 形成冈瓦纳超大陆 韧性剪切、岩浆岩侵位 | 600~550 | 韧性剪切、构造抬升 岩浆侵位、构造热液 活动 (辉长岩、花岗岩)岩浆热液活动 | 造山型金矿(Ⅱ期成矿) 热液蚀变型铜~金矿 (Ⅲ)石英脉型金矿(与韧性剪切切割片理面或近轴向相关) | 标志性事件: 埃迪卡拉生物群(无) |
| Ⅲ | 成冰纪 (南华纪) | Nubian努比亚造山运动 形成非洲大陆 | 680~640 | 区域变质、构造抬升、造山增生杂岩 增生稧的形成 岩浆侵位初步形成冈瓦纳大陆(花岗岩) | (Ⅱ)区域变质石英脉沿片理面发育并形成褶皱 (Ⅰ)区域变质热液活动与成矿 构造热液活动与成矿 岩浆热液活动与成矿(改造富集 成矿) | 标志性事件: 雪球事件(勘查区未见) |
| Ⅱ | 拉伸纪 | 冈瓦纳超大陆形成 | 750~720 (成熟洋) | 洋岛火山岩、洋内弧、蛇绿岩 | VMS块状硫化物矿形成 Cu、Au、Zn矿(Ⅰ期成矿) | |
| 莫桑比克洋盆 | 800~750 (大洋) | 洋岛–海山、深水沉积 |
| Ⅰ | 罗迪尼亚超大陆的裂解 | 850~800 | 双峰式火山岩、喷气岩、凝灰岩 大规模裂谷、枕状 玄武岩 | 成矿物质预富集 | |
| | 大陆裂解、接受海水沉积作用 | | 勘查区未见 |
| | 中元古代 | 罗迪尼亚超大陆的形成 | | 勘查区未见 |
| 古元古代 | 哥伦比亚超级大陆的形成 | | 勘查区未见 |
), ArticleFig(id=1307086101907272396, tenantId=1146029695717560320, journalId=1306274195778404443, articleId=1307086088883958360, language=CN, label=表3, caption=
Kerkebet增生杂岩带构造演化阶段阶段划分表
, figureFileSmall=null, figureFileBig=null, tableContent=
| 阶段序号 | 地质 时代 | 构造演化阶段 | 地质年龄(Ma) | 主要地质特征 | 主要成矿作用及期次 | 备注 |
| Ⅴ | 埃迪卡拉纪 (震旦纪) | 造陆运动、风化剥蚀 | 550~500 | | | 是否发育后碰撞伸展? |
| Ⅳ | 泛非造山运动 形成冈瓦纳超大陆 韧性剪切、岩浆岩侵位 | 600~550 | 韧性剪切、构造抬升 岩浆侵位、构造热液 活动 (辉长岩、花岗岩)岩浆热液活动 | 造山型金矿(Ⅱ期成矿) 热液蚀变型铜~金矿 (Ⅲ)石英脉型金矿(与韧性剪切切割片理面或近轴向相关) | 标志性事件: 埃迪卡拉生物群(无) |
| Ⅲ | 成冰纪 (南华纪) | Nubian努比亚造山运动 形成非洲大陆 | 680~640 | 区域变质、构造抬升、造山增生杂岩 增生稧的形成 岩浆侵位初步形成冈瓦纳大陆(花岗岩) | (Ⅱ)区域变质石英脉沿片理面发育并形成褶皱 (Ⅰ)区域变质热液活动与成矿 构造热液活动与成矿 岩浆热液活动与成矿(改造富集 成矿) | 标志性事件: 雪球事件(勘查区未见) |
| Ⅱ | 拉伸纪 | 冈瓦纳超大陆形成 | 750~720 (成熟洋) | 洋岛火山岩、洋内弧、蛇绿岩 | VMS块状硫化物矿形成 Cu、Au、Zn矿(Ⅰ期成矿) | |
| 莫桑比克洋盆 | 800~750 (大洋) | 洋岛–海山、深水沉积 |
| Ⅰ | 罗迪尼亚超大陆的裂解 | 850~800 | 双峰式火山岩、喷气岩、凝灰岩 大规模裂谷、枕状 玄武岩 | 成矿物质预富集 | |
| | 大陆裂解、接受海水沉积作用 | | 勘查区未见 |
| | 中元古代 | 罗迪尼亚超大陆的形成 | | 勘查区未见 |
| 古元古代 | 哥伦比亚超级大陆的形成 | | 勘查区未见 |
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