This paper elaborates the hydrogeologic, hydrogeochemical characteristic of the Heshituoluogai basin.

According to the comparison and correction between latest and old seismic data,this paper presents the whole structural interpretation and evolution of Heshituoluogai basin using basin analysis theory,basin-mountain coupling idea and balanced cross section technique.

Lithic Artefacts Collected from Open-air Sites during 1995—1999 Investigations in Luonan Basin, China;

A large number of lithic artifacts of Pleistocene age have been collected from the Luonan Basin,located in the Eastern Qinling Mountains(Central China) over the past ten years.

Relation Between The Geothermal Resources of Luoyang Basinand Longmen Geothermal Field;

Based on the analysis of Zaojiaoshu sample point layer through physical and chemical methods, a conclusion about environmental changes of Luoyang basin in Holocene can be made as follows: The climate of Luoyang basin wes cold and moist in early Holocene;warmer and hydrometric in middle Holocene; and mild and semi-hydrometric in late Holocene.

With the interpretation of remote sensing image and the comprehensive field researches ofCenozoic volcanic rocks in the Tuyon Basin, we will discuss in detail about seven volcanoes andtessellated strike-slip faults in this paper.

According to the discussion on the regional geologic setting, basement evolution of Kumishi Basin, and the tectonic evolution of south Tianshan in Mesozoic and Cenozoic era, this paper studies the nature and tectonic evolution history of Kumishi Basin and points out that Kumishi Basin is composed of two protobasins of two different phases which piece together in plane and pile up in profile.