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  1. No Access

    Article

    Apparent resistivity of azimuthal anisotropy layered media

    The electric field, equations of boundary conditions and calculation formula of apparent resistivity are derived for azimuthal anisotropy layered media with DC method based on anisotropic Ohm’s law. Taking Sch...

    Ai-guo Ruan, Tong-en Mao, Qing-he Li, Shuang-cheng Ge in Acta Seismologica Sinica (2002)

  2. No Access

    Article

    Dynamic evolution patterns of the degree of ground resistivity anisotropy and the seismogenic process

    Following a new train of thinking, this paper has explored first the potential information in the ground resistivity data observed by the existing geoelectric observation system, investigated and proposed a ne...

    Tong-En Mao, Guang-Yin Xu, Si-Yuan Fan, Ming Zhao… in Acta Seismologica Sinica (1999)

  3. No Access

    Article

    Features and physical process of the dynamic evolution pattern of ground resistivity precursor front

    In order to quantitatively describe the geoelectric precursor anomaly in the short-impending process of earthquakes, a new geoelectric precursor index — (monthly) relative change rate of ground resistivity, R ...

    Tong-En Mao, Si-Yuan Fan, Su-Rong Yu, **g-Fang Sun in Acta Seismologica Sinica (1998)

  4. No Access

    Article

    Structural features of crust-mantle assemblage in the lithosphere along the longitudinal Seismic Belt of China and their tectonic effect

    The 1° × 1° distribution map of crust-mantle structural ratio R for the lithosphere along the Longitudinal Seismic Belt of China has been compiled using computer based on the results of geophysical prospecting by...

    Tong-En Mao, Zhan-Po Liu, Chang-Fang Xu, Hong-Kui Zhang… in Acta Seismologica Sinica (1998)

  5. No Access

    Article

    An approach on dynamic earthquake prediction by georesistivity measurements

    Experiences on earthquake prediction accumulated by the Chinese scientists in the last 20 years were synthetically analyzed. A prediction program was set up to demonstrate the development of the georesistivity...

    Hong-Kui Zhang, Qi-**ng Shen, Wei Wu, Yu-Lin Zhao, Tong-En Mao in Acta Seismologica Sinica (1996)

  6. No Access

    Article

    Comprehensive analyses of seismic source layer in **ngtai and Tangshan seismic regions and the conditions of media above and below this Layer

    Statistic analyses of sectional focal depth-frequency relation for 1739M S⩾4.0 events in North China, 541M S⩾4.0 events in **ngtai seismic region and 999M S⩾4.0 eve...

    Tong-En Mao, **-Biao Chen, Jia-Liu Yao in Acta Seismologica Sinica (1996)

  7. No Access

    Article

    The variations of the degree of ground resistivity anisotropy during the tangshan earthquake

    Based on the geoelectric observation data of the 1976 Tangshan earthquake ofM=7.8 compiled by the Research Group on the Geoelectricity of the Tangshan Great Earthquake, a dimensionless factorS has been defined as...

    Tong-En Mao, Tie-Cheng Wang, Jia-Liu Yao, Jun Lu… in Acta Seismologica Sinica (1995)

  8. No Access

    Article

    The depth of Moho in the mainland of China

    In the last decade, deep seismic sounding (DSS) of profiles several ten thousand kilometers in length has been conducted in the mainland of China. A lot of results published in Chinese were compiled and a map ...

    Rong-Sheng Zeng, Wei-Guo Sun, Tong-En Mao, Zhong-Yang Lin… in Acta Seismologica Sinica (1995)

  9. No Access

    Article

    The relationship between crust-mantle structural ratio and seismic activity

    In this paper the differences and characteristics of the degree of seismic activities of various tectonic blocks and the different parts within the blocks in the eastern part of the Chinese mainland (to the ea...

    Tong-En Mao, Jia-Liu Yao in Acta Seismologica Sinica (1994)