COMPREHENSIVE GEOLOGICAL-GEOPHYSICAL INTERPRETATION OF ONE TYPICAL SECTION
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摘要: 对C盆地某测线进行地质、地球物理综合解释, 确定了第三系、白垩系、侏罗系以及目的层上三叠统的分布, 并识别出多处火成岩体及局部构造, 指出该剖面以一逆断层分成南北两段, 南北存在着巨大的差异; 北部上三叠统厚度较薄、埋藏较浅、变形较弱; 而南部上三叠统厚度较厚、埋藏较深、变形较强.总之, 通过地质、地球物理综合解释获得了较全面的认识, 取得了明显的地质效果Abstract: The comprehensive geological and geophysical interpretation of one measuring line in Basin C is applied to the determination of the distribution pattern of the Tertiary, the Cretaceous, the Jurassic and the Upper Triassic, a target stratum, and to the identification of several masses of igneous rocks, and several local structures. This section is classified as southern and northern parts along a reverse fault. A great difference arises between the southern and the northern parts of the section. The Upper Triassic in the northern part is thinner in thickness, shallower in burial depth, and weaker in deformation than that in the southern part. In conclusion, the deeper understanding of the comprehensive geological and geophysical interpretation may help us to obtain a better geological result.
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Key words:
- geology /
- geophysics /
- comprehensive interpretation
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图 2 综合地质地球物理解释剖面
石英闪长岩; 2.花岗岩; 3.正长斑岩; 4.火成岩
Fig. 2. Comprehensive geological and geophysical interpretation section1.
图 3 航磁ΔT化极异常视深度滤波断面(等值线单位为10-5?m·s-2)
Fig. 3. Apparent depth filtering section of aeromagnetic anomaly
表 1 岩浆岩密度统计
Table 1. Statistics for density of magma rocks
表 2 岩浆岩磁化率统计
Table 2. Statistics for specific magnetization of magma rocks
表 3 地层电阻率统计
Table 3. Statistics for electrical resistivity of strata
表 4 异常体性质分析
Table 4. Character analyses of the anomaly body
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[1] 王一新, 王家林, 万明浩, 等. 石油综合地球物理方法与应用[M]. 北京: 石油工业出版社, 1995. [2] 杨辉, 李明, 王宜昌, 等. 复杂地形条件下高精度重力勘探的地质效果[J]. 石油地球物理勘探, 1999, (2): 197-203. https://www.cnki.com.cn/Article/CJFDTOTAL-SYDQ199902008.htm [3] 杨辉, 王家林, 王小牧, 等. 重力异常视深度滤波及应用[J]. 地球物理学报, 1999, (3): 416-421. doi: 10.3321/j.issn:0001-5733.1999.03.015 -
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