| 青海省都兰县各玛龙银多金属矿床地球化学特征及深部找矿指示意义 |
| |
| 关键词:Gemalong primary halo element combination characteristics axial zonation sequence prediction for mineral exploration in depth |
| 基金项目:本文由青海省地质勘查基金项目“青海省柴周缘主要矿集区矿产资源深部勘查方法技术示范研究”(编号: 2021074008ky008)、“青海省重要矿集区深部找矿突破示范”(编号: 2023085029ky004)和青海省“昆仑英才”行动计划(青海省战略性矿产绿色高效勘查技术科技创新团队)联合资助。 |
|
| 摘要点击次数: 392 |
| 全文下载次数: 44 |
| 摘要: |
| Geochemical Characteristics and Implications for Deep Prospecting in the Gemalong Silver Deposit in Dulan County, Qinghai Province |
| The Gemalong silver deposit is situated in the eastern segment of the East Kunlun orogenic belt and is a recently discovered medium-sized deposit. To further expand the scale of the deposit and explore the deep prospecting space, this study conducted geochemical analyses on the Ⅲ ore belt along the 16th exploration line, analyzing 15 elements including Au, Ag, Cu, Pb, Zn, As, Sb, Hg, F, Mn, W, Sn, Mo, Bi, and Co. Using correlation, factor, cluster analyses, the study identified elemental associations indicative of multi-stage hydrothermal superimposed mineralization. The Grigoryan method was applied to determine the primary halo zoning index. Results show that the near-ore halo elements are Ag, Au, Cu, Pb, and Zn, front halo elements are Hg, As, and Sb(F), and tail halo elements are W, Mo, Bi, Sn(Mn)(Co). The axial zoning sequence from top to bottom is F→Hg→W→Co→Cu→Pb→Au→Bi→Ag→As→Mn→Sb→Zn→Sn→Mo. Anomalies of the main ore-forming elements Ag, Au, Pb, and Zn are generally consistent with the ore body. The coexistence and overlapping of front halo, near-ore halo, and tail-halo elements continuous mineralization extending into deeper zones without abrupt termination. geochemical parameters variation curves of the primary halo exhibit a “rise–fall–rise” pattern, with all parameters increasing between the 3 800 m and 3 700 m level, indicating significant extension potential below the 3 700 m level. It is inferred that the ore body may extend downward into deeper zones, suggesting considerable potential for resource expansion at depth. |
| YU Xiaoliang,WANG Chengyong,MA Cai,LI Jie,TONG Haikui,JIN Hao,WANG Tao,PEI Yousheng.2026.Geochemical Characteristics and Implications for Deep Prospecting in the Gemalong Silver Deposit in Dulan County, Qinghai Province[J].Acta Geoscientica Sinica,47(3):527-540. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
|
|