长江克拉通早期新新生代造山运动金矿床的起源:华南黄陵地区板厂河金矿床、红五村金矿床和孙家河金矿床的实例

IF 3.2 2区 地球科学 Q2 GEOSCIENCES, MULTIDISCIPLINARY
Jinyu Li , Shao-Yong Jiang , Feng Yuan , Zhou Zhou , Yin Gong , Peng Yang , Huashan Sun , Meng Xiang , Zeyu E , Mingzheng Shen , Fanyue Song , Hangde Wu
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引用次数: 0

摘要

湖北省西北部的黄陵地区位于华南地块长江克拉通的北部,拥有 76 个金矿床,310 多条金石英脉。尽管对该地区的金矿床进行了多项地质和地质年代研究,但金成矿的时间和起源仍存在争议。本研究利用板厂河金矿床、洪武村金矿床和孙家河金矿床代表性矿石中磷灰石和独居石的原位铀-铅年代测定法来确定金矿化的时间。结果表明,金矿化发生在大约 830-800 Ma,这与该地区的构造转变时期一致。本研究认为,黄陵地区的金矿床是典型的造山运动金矿床。这些研究结果表明,新近新生代早期造山型金系统保存完好,是一个罕见的实例,表明在罗迪尼亚超大陆的成长过程中存在造山型金矿床。这项研究强调了在黄陵地区深部进一步勘探以发现更多金矿脉的巨大潜力。这些发现还表明,长江克拉通的新新生代造山带可能是未来金矿床勘探的重要目标。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Origin of early Neoproterozoic orogenic gold deposits in the Yangtze Craton: Examples from the Banchanghe, Hongwucun, and Sunjiahe gold deposits in the Huangling region, South China

Origin of early Neoproterozoic orogenic gold deposits in the Yangtze Craton: Examples from the Banchanghe, Hongwucun, and Sunjiahe gold deposits in the Huangling region, South China

The Huangling region of northwestern Hubei Province, which contains 76 gold deposits with more than 310 gold-quartz veins, is located in the northern part of the Yangtze Craton, South China Block. Despite several geological and geochronological studies conducted on gold deposits in this region, the timing and origin of gold mineralization remain controversial. This study utilizes in situ U–Pb dating of apatite and monazite from representative ores from the Banchanghe, Hongwucun, and Sunjiahe gold deposits to determine the timing of gold mineralization. The results indicate that gold mineralization occurred ca. 830–800 Ma, which is consistent with the period of tectonic transformation in the region. This study proposes that the gold deposits in the Huangling region represent typical orogenic gold deposits. These findings indicate a rare example of a well-preserved early Neoproterozoic orogenic gold system, suggesting the existence of orogenic gold deposits during the growth of the Rodinia supercontinent. This study highlights the significant potential for further exploration in the deep of the Huangling region to uncover additional gold veins. These findings also suggest that the Neoproterozoic orogenic belts of the Yangtze Craton may serve as important targets for gold deposit exploration in the future.

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来源期刊
Precambrian Research
Precambrian Research 地学-地球科学综合
CiteScore
7.20
自引率
28.90%
发文量
325
审稿时长
12 months
期刊介绍: Precambrian Research publishes studies on all aspects of the early stages of the composition, structure and evolution of the Earth and its planetary neighbours. With a focus on process-oriented and comparative studies, it covers, but is not restricted to, subjects such as: (1) Chemical, biological, biochemical and cosmochemical evolution; the origin of life; the evolution of the oceans and atmosphere; the early fossil record; palaeobiology; (2) Geochronology and isotope and elemental geochemistry; (3) Precambrian mineral deposits; (4) Geophysical aspects of the early Earth and Precambrian terrains; (5) Nature, formation and evolution of the Precambrian lithosphere and mantle including magmatic, depositional, metamorphic and tectonic processes. In addition, the editors particularly welcome integrated process-oriented studies that involve a combination of the above fields and comparative studies that demonstrate the effect of Precambrian evolution on Phanerozoic earth system processes. Regional and localised studies of Precambrian phenomena are considered appropriate only when the detail and quality allow illustration of a wider process, or when significant gaps in basic knowledge of a particular area can be filled.
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