| 薛宝林.激电异常在柬埔寨煤矿勘查中的指示意义[J].矿产勘查,2018,9(10):2027-2030 |
| 激电异常在柬埔寨煤矿勘查中的指示意义 |
| Indicating Significance of IP anomalies in Exploration of Coal Deposit in Cambodia |
| 投稿时间：2018-04-22 |
| DOI： |
| 中文关键词: 激发极化法 激电异常 物性特征 资源量 |
| 英文关键词: IP method, IP anormalies, physical characteristics, resources |
| 基金项目: |
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| 摘要点击次数: 1598 |
| 全文下载次数: 904 |
| 中文摘要: |
| 矿区煤层为走向近东西急倾斜的单斜产出,埋藏深度5 m左右,埋藏浅。经物性测定煤层整体表现为高阻、中高极化"两高"的地球物理特征。区内地势平缓,侏罗系受后期岩浆热液侵入和构造断裂变质作用不明显。地面干扰因素极为有限,为找寻隐伏煤层提供了地球物理前提。时间域激发极化法,通过激电中梯测量圈定激电异常,划定煤层范围和位置,通过激电测深,可定性、定量计算出隐伏矿床的产状、埋深、规模及空间展布特征等参数。后经钻探验证与推测煤层位置及深度基本吻合。按不同的工程网度求取资源量,实现了较好的经济效益和社会效益。 |
| 英文摘要: |
| The coal seams in the mining area are monoclinic with a near EW steep inclination and a shallow burial depth of about 5 meters. The general physical properties of the coal seam in the region are"two high" (high resistance and high polarization). The terrain in the area is gentle, and the Jurassic strata are not affected by the late magmatic hydrothermal intrusion and tectonic fracture and metamorphism. Ground disturbance factors are extremely limited. These features provided geophysical premises for finding the hidden coal seams. Time domain induced polarization method (TDIP) can delineate the IP anomalies by an intermediate ladder measurement, can define the scope and location of the coal seam and calculate the relevant parameters, such as occurrence, depth, scale and space of the deposit by qualitative and quantitative methods. The calculated location and the depth of the deposit have been verified by later drilling. Therefore, on the different network of IP anomalies to find out resources has achieved better economic and social benefits. |
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