| 苏北大陆科学钻探靶区岩石物理性质 |
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| 引用本文： | 余钦范,郭友钊,孟小红,姚长利.苏北大陆科学钻探靶区岩石物理性质[J].地球物理学报,2002,45(1):93-100. |
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| 作者姓名： | 余钦范 郭友钊 孟小红 姚长利 |
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| 作者单位： | 中国地质大学,北京,100083 |
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| 基金项目： | 国土资源部重点基础研究项目 ( 95 0 1 2 0 6 ) |
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| 摘 要： | 对苏北地区主要岩石物性的调查结果发现,科学钻探的目标体榴辉岩有很大的密度,与其他围岩的密度差达0.9×103?kg/m3,具有重力勘探的物性基础;除角闪石化榴辉岩的弹性波速与围岩相近外,榴辉岩的弹性波速高于其他围岩,地震勘探在该区应是一种有效的勘探方法;就磁性而言,榴辉岩的磁性介于围岩磁性之间,与围岩磁性没有明显区别,但金红石矿化榴辉岩的磁性有明显差别,因此磁法勘探在该区受到岩石组成复杂性的限制.
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| 关 键 词： | 毛北地区 岩石物性 榴辉岩 围岩 大陆科学钻探 |
| 文章编号： | 0001-5733(2002)01-0093-08 |
| 收稿时间： | 2001-03-15 |
PETROPHYSICAL PARAMETERS AT CONTINENTAL SCIENTIFIC DRILLING SITE IN SUBEI, CHINA |
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| YU QIN-FAN,GUO YOU-ZHAO,MENG XIAO-HONG,YAO CHANG-LI.PETROPHYSICAL PARAMETERS AT CONTINENTAL SCIENTIFIC DRILLING SITE IN SUBEI, CHINA[J].Chinese Journal of Geophysics,2002,45(1):93-100. |
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| Authors: | YU QIN-FAN GUO YOU-ZHAO MENG XIAO-HONG YAO CHANG-LI |
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| Institution: | University of geosciences of China, Beijing 100083, China |
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| Abstract: | A petrophysic investigation is carried out in Maobei area, where Chinese scientific drill is located. In general, there is a prominent petrophysical difference between eclogite and its surrounding rock. Density of eclogite is higher 0.9(×10 3kg/m 3) than that of other rock, implying that gravitational exploration is most effective method used to find eclogite body as science drill target. P-wave velocity of eclogite is higher also, suggesting that seismic exploration is effective. Magnetic properties of eclogite are not largely different from wall rock, and effectiveness of magnetic exploration for locating eclogite body is limited by complex assemblage of eclogite and its surrounding rock. |
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| Keywords: | Maobei area Petrophysical parameters Eclogite Wall rock Scientific drilling |
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