| 陕西马元地区铅锌矿地质特征及找矿方向 |
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| 引用本文： | 侯满堂,王党国,邓胜波,杨宗让,徐涛.陕西马元地区铅锌矿地质特征及找矿方向[J].陕西地质,2006,24(1):45-56. |
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| 作者姓名： | 侯满堂 王党国 邓胜波 杨宗让 徐涛 |
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| 作者单位： | 陕西省地质调查院,西安,710054 |
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| 基金项目： | 中国地质调查局资助项目 |
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| 摘 要： | 陕西马元地区铅锌矿位于扬子地台北缘碑坝隆起东南缘一带。矿化带长大于60 km,宽10~200 m,可分为南、东、北三个铅锌矿化带,已圈出了40多条铅锌矿体。其中南矿化带长大于20 km,宽20~120 m,已圈出了40多条铅锌矿体;东矿化带长大于30 km,宽20~200 m,地表已发现7条铅锌矿体;北矿化带长大于10 km,宽10~100 m。矿体一般长100~2560 m,厚0.80~10.01 m,锌品位1.05%~10.82%,铅品位0.55%~7.54%。主矿体长2560 m,厚1.46~32.53 m,平均厚约7.60 m,最厚28.40 m,锌品位1.45%~11.42%,平均4.47%。矿化带主体由震旦系灯影组白云岩组成,产于灯影组的砾状白云质角砾岩带中。矿化主要受地层和构造的控制。经预测,陕西碑坝—马元、云河—庙坝、阳平关—宽川铺—阜川、司上—镇巴、镇坪及湖北竹溪、神农架、黄陵等地区有较好的找矿前景。
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| 关 键 词： | 铅锌矿 地质特征 控矿条件 找矿标志 找矿方向 陕西马元 |
| 文章编号： | 1001-6996(2006)01-0045-12 |
| 收稿时间： | 2006-05-09 |
| 修稿时间： | 2006年5月9日 |
GEOLOGY OF LEAD-ZINC MINERALIZATION IN MAYUAN AREA OF SHAANXI PROVINCE |
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| HOU Man-tang, WANG Dang-guo, DENG Sheng-bo , YANG Zong-rang.GEOLOGY OF LEAD-ZINC MINERALIZATION IN MAYUAN AREA OF SHAANXI PROVINCE[J].Geology of Shaanxi,2006,24(1):45-56. |
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| Authors: | HOU Man-tang WANG Dang-guo DENG Sheng-bo YANG Zong-rang |
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| Abstract: | In Mayuan area, southeastern margin of the Beiba uplift in the northern Yangtze platform occur lead-zinc mineralized zones, in which the ore zones have a length over 60km and a width ranging between 10 and 200m. The lead-zinc zones in this area are distributed at the south, the east and the north, in which over 40 ore bodies have been delineated. The lead-zinc mineralized zones in the south side have lengths over 20km and width ranging between 20 and 120m. In the east side, mineralized zones are over 30km long and 20 to 200m wide, in which 7 ore bodies have been discovered; In the north side, the length of ore bodies is over 10 km and the width ranging between 10 and 100m. The ore bodies in this area have lengths generally 100-2, 560m, thickness 0.80-10.01m, zinc grade ranging between 1.05% and 10.82%, and lead grade 0.55% and 7.54%. The major ore body has a length 2, 560m, thickness ranging between 1.46m and 32.53m, averaging 7.60m, containing zinc 1.45-11.42%, averaging 4.47%. The lead-zinc mineralization occurs mainly in psephitic dolomitic breccia of the Sinian Dengying Formation, which is controlled by stratigraphy and structures. It is estimated that favorable ore prospecting is the areas of Beiba-Mayuan, Yunhe-Miaoba, Yangpingguan-Kuanshuanpu-Fuchuan, Sishang-Zhenba, Zhenping in Shaanxi province, and Zuxi, shennongjia and Huanling in Hubei province. |
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| Keywords: | lead-zinc mineralization geological features controlling of mineralization prospecting criteria prospecting guide Mayuan in Shaanxi |
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