| 鲁西铜石金矿田构造-岩浆-成矿格架：来自综合地球物理探测的认识 |
| 投稿时间：2024-01-29 修订日期：2024-04-23 点此下载全文 |
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| 中文摘要:铜石金矿田为山东省鲁西地区典型金矿产区，区内已发现了归来庄、卓家庄等十余个金矿床（点），金矿化类型多样，受构造、岩浆活动作用影响明显。了解区域构造格架、岩浆演化过程等对在区内开展找矿预测意义重大。通过在铜石金矿田区域内开展深反射二维地震、重力及大地电磁测深的综合地球物理探测，识别了莫霍面、滑脱构造带、岩浆房及岩浆通道等地质体特征，大致查明中生代成矿系统深部结构和成矿构造背景，突破了区内归来庄金矿体受单一构造控制的认识，建立了构造-岩浆-成矿格架，完善了铜石金矿田“一体多型”成矿模式，为新一轮深部金矿找矿预测及开展相关研究工作提供了依据。 |
| 中文关键词:深反射地震 地球物理探测 构造-岩浆-成矿格架 铜石金矿田 |
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| Structural-Magmatic-Metallogenic Framework of Tongshi Gold Ore Field, Western Shandong Province: Insights from Integrated Geophysical Exploration |
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| Abstract:Tongshi gold field is a representative gold-producing area in western Shandong Province. Over ten gold deposits have been discovered in the area, including Guilaizhuang and Zuojiazhuang deposit. The types of gold mineralization are diverse and are obviously affected by tectonic and magmatic activities. Understanding the regional tectonic framework and magmatic evolution process holds great significance for prospecting and prediction in this region. Through the comprehensive geophysical exploration of deep reflection 2D seismic, gravity and magnetotelluric sounding in the area of Tongshi gold field, the characteristics of geological bodies such as Moho plane, detachment structure zone, magma chamber and magma channel were identified, and the deep structure and metallogenic tectonic background of Mesozoic metallogenic system were roughly identified, which broke through the understanding that Guilaizhuang gold ore body in the region was controlled by a single structure. The tectonic magmatic metallogenic framework was established while perfecting the “one body with multiple types” metallogenic modle. These findings provide a foundation for a new phase of deep gold prospecting prediction as well as related research endeavors. |
| keywords:deep reflection 2D seismic Comprehensive geophysical exploration means Tectonic magmatic metallogenic framework Tongshi Gold Field |
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