IF 1.8 3区地球科学

岩石学报 Pub Date : 2023-01-01 DOI: 10.18654/1000-0569/2023.07.01

Jiankang Li, Peng-Chuan Li, Zhenyu Chen

引用次数: 0

Output and impact of geochemical articles authored by Chinese researchers from 2000 to 2021: Statistical analysis based on SCI database 2000 - 2021年中国科研人员地球化学论文产出及影响——基于SCI数据库的统计分析

IF 1.8 3区地球科学

岩石学报 Pub Date : 2023-01-01 DOI: 10.18654/1000-0569/2023.01.17

Ren Shengli, H. Sufang, Liu Yahui, Zhou Xinhua

引用次数: 0

Petrogenesis and tectonic significance of basalts from the Mid-Atlantic Ridge 26°S: Evidence from Hf isotopes 大西洋中脊26°S玄武岩成因及其构造意义:来自Hf同位素的证据

IF 1.8 3区地球科学

岩石学报 Pub Date : 2023-01-01 DOI: 10.18654/1000-0569/2023.08.08

Meng Fanxue, Zhao Mengyun, Meng Yuanku

引用次数: 1

Enrichment characteristics and its geological significance of dispersed elements within sulfide minerals from the Ⅵ ore belt in the Maoping Pb-Zn deposit, Yunnan Province, China 云南茂坪铅锌矿Ⅵ矿带硫化物矿物中分散元素富集特征及其地质意义

3区地球科学

岩石学报 Pub Date : 2023-01-01 DOI: 10.18654/1000-0569/2023.10.08

HE Ye, ZHOU GaoMing, ZHONG Hua, CHENG Yong, YUE ZhengPeng, LIU HeSong, ZHOU JiaXi

{"title":"Enrichment characteristics and its geological significance of dispersed elements within sulfide minerals from the Ⅵ ore belt in the Maoping Pb-Zn deposit, Yunnan Province, China","authors":"HE Ye, ZHOU GaoMing, ZHONG Hua, CHENG Yong, YUE ZhengPeng, LIU HeSong, ZHOU JiaXi","doi":"10.18654/1000-0569/2023.10.08","DOIUrl":"https://doi.org/10.18654/1000-0569/2023.10.08","url":null,"abstract":"作为华南大面积低温成矿域的重要组成部分,川滇黔铅锌矿集区是我国重要的铅锌银等资源基地之一,同时该矿集区也是Ge、Cd、Ga和In等稀散元素的超常富集区域。毛坪矿床是该矿集区内第二大铅锌矿床,累计探明铅锌金属储量超过3Mt (Pb+Zn平均品位≥18%),锗(Ge)保有储量182t。本文以新发现的Ⅵ矿带(铅锌金属已探明储量≥60万t,Pb+Zn平均品位≥20%)为研究对象,利用LA-ICPMS对主要矿石矿物闪锌矿和黄铁矿进行了微区原位微量元素组成和Mapping分析。研究结果显示Ⅵ矿带闪锌矿普遍富集Ge(最高580×10-6,均值81.1×10-6)、Cd(最高3486×10-6,均值1613×10-6)和Ga(最高190×10-6,均值44.4×10-6);黄铁矿普遍富集Mn、As、Pb、Cu、Ag和Sb。与Ⅰ和Ⅱ号矿带闪锌矿相比,Ⅵ号矿带闪锌矿更富集Ge和Ga。闪锌矿中Fe和Pb以类质同象为主,偶见黄铁矿和方铅矿显微包体;Cu、Ge、Ag和As赋存形式主要为类质同象,替代方式为Ge4++2(Cu+, Ag+, As+)↔3Zn2+;Cd以类质同象方式赋存为主,替代机制为Cd2+↔Zn2+;Ga和In可能主要以类质同象方式存在。黄铁矿中Pb和Mn主要以方铅矿和碳酸盐矿物显微包体为主;Cu、As和Sb以类质同象形式存在于黄铁矿中;Ag和Zn可能以独立矿物形式赋存;Co和Ni以类质同象方式替代Fe进入黄铁矿晶格中,替代方式为Ni2++Co2+↔2Fe2+。毛坪矿床新发现Ⅵ矿带硫化物相比典型MVT矿床硫化物具有不同的In和Ge含量以及Cd/Fe比值,结合矿床地质特征和其他证据,表明毛坪矿床成因类型特殊,有别于经典MVT铅锌矿床,属于川滇黔型铅锌矿床。","PeriodicalId":7075,"journal":{"name":"岩石学报","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135798370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Establishment of research methodology and workflow for the occurrence state of the critical metal cobalt in ore: A case study of the Longqiao cobalt-rich skarn iron deposit in the Luzhong Basin 矿石中关键金属钴赋存状态研究方法与工作流程的建立——以鲁中盆地龙桥富钴矽卡岩铁矿为例

3区地球科学

岩石学报 Pub Date : 2023-01-01 DOI: 10.18654/1000-0569/2023.10.18

ZHANG YiFan, FAN Yu

{"title":"Establishment of research methodology and workflow for the occurrence state of the critical metal cobalt in ore: A case study of the Longqiao cobalt-rich skarn iron deposit in the Luzhong Basin","authors":"ZHANG YiFan, FAN Yu","doi":"10.18654/1000-0569/2023.10.18","DOIUrl":"https://doi.org/10.18654/1000-0569/2023.10.18","url":null,"abstract":"关键金属钴的赋存状态是研究关键金属成矿作用的核心问题之一。由于含钴矿物粒度较小,难以在矿床尺度查明关键金属矿物的种类、含量、粒度、分布特征以及与其他矿石矿物和脉石矿物的共生关系,因此亟需建立一套成本低且效率高的钴赋存状态研究流程。本次工作以龙桥铁矿床为例,建立了新的采样与制样流程,提高了样品的代表性,并大幅缩短了样品前处理与制样的时间。通过综合矿物分析技术(TIMA)分析,查明了不同钴含量的三类矿石样品中矿物的含量,在6个实验矿石样品中寻找到了辉砷钴矿、铁硫砷钴矿和硫铜钴矿三种钴矿物共753颗,并使用扫描电镜和能谱分析(SEM-EDS)对钴矿物进行了核验与半定量分析。最后,在同一个树脂靶上利用激光剥蚀-等离子体质谱仪(LA-ICP-MS)对磁铁矿和黄铁矿进行了原位点分析,进一步查明了样品中钴的赋存状态。本次研究建立了关键金属钴在矿石中赋存状态的研究方法和技术流程,具有制样简单便捷、分析时间短、分析费用低和分析精度高等诸多优点,为矿床尺度上关键金属空间分布规律和赋存状态研究提供了可靠的技术支撑。","PeriodicalId":7075,"journal":{"name":"岩石学报","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135799161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

U-Pb dating and trace element of titanite and garnet as indicators of the age and ore-forming condition of skarn W deposit: A case study of the Xiaoyao W polymetallic deposit in southern Anhui, China 钛矿和石榴石U-Pb定年及微量元素对夕卡岩型钨矿床年龄和成矿条件的指示——以皖南逍遥钨多金属矿床为例

3区地球科学

岩石学报 Pub Date : 2023-01-01 DOI: 10.18654/1000-0569/2023.10.13

SHI Ke, XIAO Xin, YANG XiaoYong, ZHANG DaYu, CAI Yang, WENG WangFei, WANG JinQuan

{"title":"U-Pb dating and trace element of titanite and garnet as indicators of the age and ore-forming condition of skarn W deposit: A case study of the Xiaoyao W polymetallic deposit in southern Anhui, China","authors":"SHI Ke, XIAO Xin, YANG XiaoYong, ZHANG DaYu, CAI Yang, WENG WangFei, WANG JinQuan","doi":"10.18654/1000-0569/2023.10.13","DOIUrl":"https://doi.org/10.18654/1000-0569/2023.10.13","url":null,"abstract":"逍遥矿床是安徽南部新发现的大型钨多金属矿床,其精细的岩浆-热液时限及成矿作用仍不明确。本文对其开展了石榴子石和榍石的U-Pb年代学和微量元素分析,发现逍遥矿床发育多阶段榍石(岩浆榍石和热液榍石),岩浆榍石与石英、磁铁矿、长石共生,而热液榍石与石英、方解石、辉钼矿、黄铜矿关系密切。逍遥矿床中石榴子石和榍石中均具有一定的U含量,其中石榴子石中U含量较低(平均为15.9×10-6),岩浆榍石和热液榍石的U含量较高(平均值大于100×10-6)。石榴子石和榍石U-Pb同位素定年结果显示成岩和W多金属矿化均形成于150Ma左右,指示W多金属矿化与花岗闪长岩密切相关。岩浆榍石、钾长石、石英、磁铁矿矿物组合指示逍遥成矿岩浆具有氧化性强和富水的特征。逍遥钨矿中的石榴子石以钙铁榴石为主且富集W、Sn特征,指示早期流体为氧化性流体。此外,热液榍石中HFSE元素的高度富集表明其成矿流体为富碱、富F的热液系统,为钨、铅、锌、铜、银、钼多金属的富集提供了有利热液条件。综上所述,石榴子石和榍石能够有效指示矽卡岩W矿的成矿时代和成岩成矿条件。","PeriodicalId":7075,"journal":{"name":"岩石学报","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135800099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Petrogenesis of the quartz diorite porphyry in the Zaozigou, West Qinling and its geological implications 西秦岭枣子沟石英闪长斑岩成因及其地质意义

IF 1.8 3区地球科学

岩石学报 Pub Date : 2023-01-01 DOI: 10.18654/1000-0569/2023.02.11

Xue XianFa, Qiu KunFeng, HE DengYang, Huang Yaqi, Zhu Rui, Yu Haocheng, J. Guipeng

引用次数: 0

Cobalt sources and enrichment processes of the Paleoproterozoic sedimentary rock-hosted Cu-Co deposits in the Zhongtiao Mountains 中条山古元古代沉积岩型铜钴矿床钴源及富集过程

IF 1.8 3区地球科学

岩石学报 Pub Date : 2023-01-01 DOI: 10.18654/1000-0569/2023.04.05

Qiu Zhengjie, Fan Hongrui, Yang Kuifeng, Liang Linhan

引用次数: 0

Trace elements in pyrite from orogenic gold deposits: Implications for metallogenic mechanism 造山带金矿黄铁矿中的微量元素及其成矿机制