| 冀北地区岩石极化率特征及其找矿意义 |
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| 引用本文： | 董杰,郭友钊,石妹华,宫进忠.冀北地区岩石极化率特征及其找矿意义[J].物探与化探,2001,25(5):383-387. |
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| 作者姓名： | 董杰 郭友钊 石妹华 宫进忠 |
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| 作者单位： | 1. 河北省地球物理勘查院
2. 中国地质科学院地球物理地球化学勘查研究所 |
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| 基金项目： | 中国地质科学院地质大调查项目(DK9902057) |
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| 摘 要： | 介绍在东经114°～120°和北纬39°00′～42°30′的范围内岩石极化率研究的成果。数值统计结果显示,798件沉积岩的平均极化率为2.40%,1149件火成岩的极化率为2.99%,436件变质岩的极化率为3.59%,因此,变质岩是本区较好的金属矿矿源。空间分布上,与沉积作用密切相关的煤矿主要分布在沉积岩高极化率地区,变质铁矿主要分布在变质岩高极化率地区,内生金矿则主要分布在火成岩高极化率地区。因此认为,主要矿产地的分布与极化率高值区的分布在空间上大体一致,岩石极化率反映了矿源物质的总体背景。
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| 关 键 词： | 冀北 岩石 极化率 矿源 矿床远景区 |
| 文章编号： | 1000-8918(2001)05-0383-05 |
| 收稿时间： | 2001-04-22 |
CHARACTERISTICS OF REGIONAL ROCK CHARGEABILITY IN NORTHERN HEBEI PROVINCE AND THEIR ORE-PROSPECTING IMPLICATION |
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| DONG Jie ,GUO You zhao , SHI Mei hua , GONG Jing zhong.CHARACTERISTICS OF REGIONAL ROCK CHARGEABILITY IN NORTHERN HEBEI PROVINCE AND THEIR ORE-PROSPECTING IMPLICATION[J].Geophysical and Geochemical Exploration,2001,25(5):383-387. |
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| Authors: | DONG Jie GUO You zhao SHI Mei hua GONG Jing zhong |
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| Institution: | DONG Jie 1,GUO You zhao 2 , SHI Mei hua 1 , GONG Jing zhong 1 |
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| Abstract: | This paper describes regional rock chargeability data from the area at 114°～120° east longitude and 39°00′～42°30′ northern latitude. The average chargeability value of 798 sedimentary rock specimens is 2.4%, that of 1 149 igneous rock specimens is 2.99%, and that of 436 metamorphic rock specimens is 3.59%, which implies that the metamorphic rock might be the source of metallic ore deposits. In spatial distribution, coal fields are developed in the anomalies of high chargeability sedimentary areas; metamorphic iron deposits occur in the anomalies of high chargeability metamorphic areas; endogenic gold deposits are found in the anomalies of high chargeability igneous areas. On the whole, the main ore fields are consistent with areas of high chargeability anomalies. |
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| Keywords: | Northern Hebei Province rock chargeability source of ore prospect area |
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