Soil samples of current paddy soils,ancient paddy soil/ancient dry land soil,and bottom soils were collected from two sites in Chuodunshan Site of Majiabang Culture(about 6 000a).

Previous studies suggested that two layers of ancient paddy soils existed in Holocene strata at the lower Changjiang River delta region in China,but little evidence of soil chemical and physical data has been offered up to now.

The principle and application of magnetic fabric to paleocurrent estimation of drilling cores;

A geometrical method of calculating paleocurrent direction using seismic progradation reflection characteristics;

In order to confirm the sedimentary source direction of Yanchang Formation in Yichuan area of Ordos Basin,according as abundant analysis and test data,using characteristic of the sandstone lithology,the features of light and heavy mineral group,paleocurrent direction,and rare earth element distributing pattern,anal.

Before the characteristics of fluid migration and accumulation being studied, evolution history of paleo-hydrodynamics must be restored first of all, because of being as specific history events set in geologically history periods.

This paper researches the vicissitude and space distribution law of the ancient hydrological network in Sanjiang Plain in the main geology history section.

PCR-DGGE analyses of bacterial and archaeal community diversities in ancient paddy soils discovered in Chuodunshan Site, Suzhou, China;

Analysis on sedimentary provenance and palaeocurrent in Yao I Member in northern Gulong area;

This paper aims to analyze the stratigraphic and petrological characteristics, the palaeocurrent, and the clastic compositions of Xueshan Formation.

Based on the direction of palaeocurrent revealed by the oblique beddings in the sand.

Widely distributed calcite and aragonite crystal in the cave passage are originated from ancient pool deposits.