| 樊松浩,王达,李成元,陈磊,何泽宇,马虎超,侯秀宏.二连盆地川井准噶顺地区镭-铀平衡系数在砂岩型铀矿找矿勘查中的应用[J].矿产勘查,2025,16(6):1369-1383 |
| 二连盆地川井准噶顺地区镭-铀平衡系数在砂岩型铀矿找矿勘查中的应用 |
| The application of radium-uranium equilibrium coefficient in the sandstone—type uranium mineral exploration in the Chuanjing area of Erlian Basin |
| 投稿时间：2024-12-10 |
| DOI：10.20008/j.kckc.202506007 |
| 中文关键词: :二连盆地 砂岩型铀矿 镭-铀平衡系数 碎屑锆石 Th/U |
| 英文关键词: Erlian Basin sandstone-type uranium depos radium-uranium (Ra-U) equilibrium coefficient de.trital zircon Th/U ratio |
| 基金项目:本文受中国地质调查局项目“内蒙古二连盆地川井—达日罕乌拉地区砂岩型铀矿勘查”(DD20211549)与“内蒙古包头市乌拉山中东段金矿重点调查区调查评价”(DD20230384)联合资助。 |
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| 中文摘要: |
| 镭-铀平衡系数(Kp值)是铀矿勘查研究中的一个重要指标，对铀矿勘查的工程布设及成矿规律的总结具有重要的指示意义。通过对区内 Kp值空间分布规律研究，为准噶顺地区下步找矿突破提供有效的数据支撑。本文综合赋矿层的岩石特征、碎屑锆石 LA-ICP-MS U-Pb定年结果、Th/U元素含量比值、水化学特征，对二连盆地准噶顺地区内砂体镭-铀平衡系数在平面空间关系特征及其与岩性关系特征、矿体埋深关系特征进行对比研究，为准噶顺地区下步找矿突破提供有效的数据支撑。结果表明，Kp值指示出区内主要找矿目的层为区内一套北东向展布棕红色泥岩—深灰色泥岩—砂砾石层—浅灰色中粒岩屑砂岩的红色碎屑岩系。Kp值对铀的富集规律可以提供重要的指示，对于找矿突破具有重要的指示意义。 |
| 英文摘要: |
| The radium-uranium balance coefficient (Kp value) is an important indicator in uranium deposit ex.ploration and has significant implications for the deployment of exploration and the summarization of ore-formingmodel. By studying the spatial distribution pattern of Kp values in the area, it can provide effective support for thenext breakthrough in mineral exploration at the Zhungashun region. This paper combines the characteristics of therock, the LA-ICP-MS U-Pb dating ages of detrital zircon, the Th/U elemental content ratio, and the hydrochemicalfeatures. By analyzing the spatial relationships of the radium-uranium balance coefficient, its relationship with li.thology and the depth of ore bodies in the sandstones of the Zhungar region, which providing more data support forthe future breakthrough of mineral exploration in the Zhungar region. As results, the Kp value indicates the main tar.get layer for exploration in study area is a set of NE trending brown mudstone-dark gray mudstone-sand and gravellayer-light gray medium-grained rockof red clastic rock series. The Kp value provides important inndications forthe enrichment of uranium, which is favorable for the breakthrough in mineral exploration. |
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