首页|若羌阿亚克稀有金属矿田成矿地质条件及找矿前景分析

若羌阿亚克稀有金属矿田成矿地质条件及找矿前景分析

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新一轮找矿突破战略行动以来,阿尔金地区稀有金属矿取得重大找矿突破,陆续发现评价了阿亚克、瓦石峡南、库木萨依、塔什达坂等4个具有大型远景的稀有金属矿田.阿亚克稀有金属矿田位于阿尔金山中段,大地构造位置属秦祁昆造山系阿尔金古生代造山带阿中地块.地层属塔里木-南疆地层大区阿尔金小区,主要出露地层为古元古界阿尔金岩群及英格里克构造蛇绿混杂岩中部复理石.侵入体为青白口纪、奥陶纪侵入体.发育有466条伟晶岩脉,产于英格里克构造蛇绿混杂岩复理石岩片黑云斜长石英片岩及阿尔金岩群片岩、片麻岩中,稀有金属矿化伟晶岩空间分带特征明显,矿化类型具北铍-中锂-南铍特征.主要控矿断裂为卡尔恰尔-阔什区域性大断裂(阿中断裂).区内圈定稀有金属相关的1∶5万化探综合异常9处,异常与矿点对应好,均为矿致异常.矿田内已发现阿亚克、吐格曼2处中型锂铍稀有金属矿床,阿亚克矿床圈定67条矿体,矿体地表出露规模较小,深部隐伏相连,延伸稳定.吐格曼矿床圈定矿体12条.矿田成矿条件、成矿背景优越,找矿前景较好.
Analysis on Metallogenic Geological Conditions and Prospecting Prospect of Ayak Rare Metal Ore Field in Ruoqiang County,Xinjiang
Since the new round of prospecting breakthrough strategic action,the rare metal ore in Altun region has made a major breakthrough in prospecting,and four rare metal ore fields with large prospects have been discovered and evaluated successively,such as Ayak,Waishixia South,Kumusai and Tashdaban.The Ayak rare metal ore field is located in the middle of Altun Mountain,and its tectonic position belongs to the Altun arc basin of Qinqi-Kun orogenic system.The strata belong to the Altun community in Tarim～Southern Xinjiang,and the main outcrop strata are the Altun Group of Paleoproterozoic and the middle flysch of the Inglik structure ophiolitic melange.The main intrusions are Qingbaikou and Ordovician intrusions.The main exposed vein rocks are pegmatite veins,with 466 pegmatite veins,which are pro-duced in the Anglicke structure ophiolitic melange flysticite schist and alginite group schist and gneiss.The spatial zona-tion characteristics of rare metal mineralized pegmatite are obvious,and the mineralization type shows the characteristics of north beryllium-middle Li-south beryllium.The main ore-controlling and ore-guiding fault is the Karchar-Quash re-gional major fault(A Zhong fault).There are 9 1∶50,000 geochemical anomalies related to rare metals in the area,and the anomalies correspond well with mineral sites,all of which are ore-induced anomalies.Two medium-size rare metal de-posits have been found in the ore field,namely Ayak lithium beryllium deposit and Tugman beryllium lithium deposit.67 ore bodies have been defined in Ayak deposit,and only 8 of them have been drilling and verification.The surface of the ore bodies is small,but deep buried and connected,and the extension is stable.Twelve ore bodies have been delineated in the Tugman deposit.The ore-forming condition and ore-forming background of the ore field are superior,and the pros-pecting prospect is good.

The middle part of AltunAyak rare metal fieldGeological characteristicsProspecting prospect

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新疆维吾尔自治区地质矿产勘查开发局第三地质大队,新疆库尔勒 841000

阿尔金中段 阿亚克稀有金属矿田 地质特征 找矿前景

新疆维吾尔自治区地质勘查基金项目新疆维吾尔自治区地质勘查基金项目新疆维吾尔自治区地质勘查基金项目新疆维吾尔自治区重大科技专项新疆维吾尔自治区地质局地质勘查项目

K19-2-XJ01K21-3-XJ003K22-3-XJ0072023A03002-3XGMB202240

2024

新疆地质
新疆维吾尔自治区地质学会

新疆地质

CSTPCD
影响因子：0.879
ISSN：1000-8845
年,卷(期)：2024.42(2)