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您的检索式：关键字=Potential source analysis
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| 1 | Contributors and potential of hydrocarbon generation of source rocks by solid-state ^(13)C NMR spectroscopy显示文摘SOLID-STATE 13C nuclear magnetic resonance (NMR) technique is an effective method to study the texture of material. Under the condition of high magnetic field (400 MHz) and by the application of cross polarization, magic angle spinning (CP/MAS), total sideband suppression (TOSS), etc., the content of different textural carbons in kerogen has been quantitatively analyzed by the solid-state 13C NMR spectroscopy of a series of kerogen of thermal simulation samples with Ro value ranging from 0.64% to 1.76%. The results show that | WANGZhaoyun, ZHAO Changyi, CHENG Keming and LU Qinghua1. Research Institute of Petroleum Exploration and Development, China National Petroleum Corporation, Beijing 100083, China:2. University of Petroleum, Beijing, 100083 China | 1997 | Chinese Science Bulletin1997，42，6： | 0 |
| 2 | Study of the Non-Uniform Distribution of Earthquake Risk Within Potential Sources显示文摘Potential sources are aggregates of probable future epicenters.In this area,for source models currently,in common use for seismic risk analysis in China,the mean area of each potential source is about 3000-4000 km2.It is assumed that seismic risk has a uniform distribution within the range of each potential source,but studies have shown that the uniform distribution model to a large extent may give an underestimation of the seismic risk.In this paper,the relative distribution of historical epicenters in space within potential sources is discussed,a method is proposed to quantitatively describe the non-uniform distribution of strong earthquakes within potential sources,and some preliminary results are given.By using the results of this paper,seismic risk analysis and seismic zonation can be made more scientific and more reasonable. | Xu Guangyin and Gao MengtanInstitute of Geophysics,SSB,Beijing 100081,China | 1997 | Earthquake Research in China1997，11，1： | 0 |
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