On the basis of accurate analysis of 154 composite soil samples collected from various landscape in China and other reference information, abundance of 79 elements and composition of soils in China have been given, chemical composition of soils under the influence of matrix rock and supergenesis geochemistry condition have been studied preliminarily.

Horizontal zonality sequence of geochemical anomalies is traditionally determined by means of dimensions of anomalies or linear metal quantity contrast. The sequence thus obtained mainly reflectds anomaly intensities of different indicator elements instead of ordered spatial arrangement of anomaly centers, and hence fails to indiccate the complete relative reactivities of elements. The horizontal zonality sequence calculated by the center-of-gravity method can not only reflect spatial variation regularity of different indicator elements realtive to the mineralization center under the ore-forming and halo-forming action, but also indicate effectively relative reactivities of elements in the ore-forming and halo-forming process. The center-of-gravity method has unequivocal mathematic and geochemical implications and also applies to the calculation of ordered arrangement of vertical zones.

This paper elucidates the basic principle of the high-frequency (broad-band) elastic wave reflection continuous profiling of land minimum offset distance (called land soar method for short) as well as the technique for its realization, and gives examples of its successful application in such aspects as the shallow-layer high resolution exploration, the detection of karst and other caves, the detection and prediction of unfavorble conditions ahead along the heading face of the tunnel, and the detection of extremely thin layers. This method has many merits such as high resolution ratio, the capacity of avoiding lots of disturbing waves, high energy of reflection waves, effective detection of karst and caves, and simple and easily recognizable images.

Seismic methods are main tool of imvestigating deep buried active faults. Applications of seismic method are restricted seriously due to complex of shallow seismic geological conditions and frequency of artificial activity in the city. It is favorable for suppressing strong background noise and improving S/N ratio and resolution of seismic record when high frequency geophones and phase correlating stacking techniques as well as some other techniques at suitable working time are used during field data acquisition. We can obtain high quality seismic section when proper data processing techniques are used at data processing stage.

Based on a brief description of the quantitative interpretation methods for "the utilization of fixed point source sounding data to draw geoelectric section" put forward by V.A. Komarof (relative intensity method, integral parameter method and differential parameter method), this paper deals emphatically with the results of computerized quantitative interpretation of apparent polarizability sounding curves obtained form theoretical calculation, digital simulation and physical simulation above spheroids, plates and composite plates (for the purpose of determining central depths, attitudes, upper interface locations and outlines of buried bodies). Exemplified by results of a field test, the paper also demonstrates the effectiveness of this method.

Based on investigation and analysis of aeromagnetic and gravity data, this paper has put forward some opinions about the basement framework and relief as well as structural features of central Ili basin, made some description of the features of geophysical field and , what is more, determined the thickness and distribution of Permian in the western part of the basin, thus providing basis for further oil and gas exploration in the Permian strata. Basides, aimed at finding out the evolution of the basin, the paper has dealt preliminarily with the development of the covering strata.

According to magnetic analysis of 302 rock samples from 25 sampling points of Fenghuagshan rock body in Tongling area, Anhui Province, the magnetic fabrics obtaned in the study area can represent flow magnetic fabrics during magmatic emplacement, because they were not considerably influenced by tectonic activity after the formation of magma; the process of magmatic emplacement was a quasi-static process, in which the mobility of magma was rather weak, and the differentiation and assimilation-hybridization were quite strong; the early stage of magmatic emplacement might have been controlled by the NNE-trending maximum principal compressional shear, whereas the late stage was probably conditioned by the southwest maximum principal compressional shear; the southwest part of Fenghuangshan rock body where the Yaoyuanshan ore deposit is located is the hanging wall of the rock body, whereas the northeast part where the Xianrenchong ore deposit is situated is the lying wall of the rock body, suggesting that Fenghuangshan rock body pitches southwestward; in areas adjacent to the southwest part of Fenghuangshan rock body (such as in Lailong Mountain) there might exist small stocks formed in the same period as the emplacement of Fenghuangshan rock body, which are promising areas for ore prospecting.

Based on References [1] and [2], this paper has further improved data-processing and transform methods for curved surface potential field of trigonometric funtion, put forward three basic types of curved surface potential processing and transform (pure potential field type, gravity field type and magnetic field type) as well as four important technical measures (plane rotation technique of coordinate, normalization processing technique, translation technique of Z coordinate and block processing technique), compiled corresponding softwares and, through tentative calculation of theoretical model and processing of factual data, tested the correctness of the methods and the effectiveness of the related techniques and measures. Softwares of this suite of methods are charaterized by high adaptability, rapid calculation and high precision.

Based on remote-sensing geology and very-low frequency anomalies of the central part of the Shule River fault zone, this paper,by means of determining concentration of radon emanation at the surface above the fault zone, has analysed and evaluated the stability of the central part of the Shule River fault zone. The result shows that the central part of the Shule River fault zone is a fairly stable fault.

Airborne geophysical data are of relatively high preservation and development value. As tapes can only be preserved for a relatively short period, there exists the danger of losing data obtained from aerogeophysical survey. The transcription of airborne geophysical data with laser discs will solve this problem and create favorable conditions for the development and utilization of airborne geophysical data at a higher level.The disc data can be read out from any laser disc driver compatible with RICOHRS-5060E type laser disc driver.