Influences of weathering on organic matter of outcrop andcorrecting methods in Xining Basin;

Discussion on the Weathering Mechanism of Silicate Bacteria on Phosphorite;

All of the bauxites are formed by weathering without any exception.

The authors point out that two chemical kinds of groundwater in this aquifer are formed by the weathering process of anorthite and forsterite respectively,the authors stress that the CO2 partial pressure increase caused by groundwater contamination can accelarate the weathering process of silicate and alumi-nosi.

An apparent difference of loess and soil is that the loess units appear to be non-weathered or slightly weathered,whereas the soils have been subjected to relatively strong weathering process.

, natural, artificial and biochemical weathering processes, and dealt with the products formed.

Major ions and the strontium isotopic composition are important geochemical characters of the water body,and provide insight into the regional hydrogeochemistry,rock weathering rates in drainage basins,and anthropogenic influences on the river.

Strontium geochemistry in surface waters helps shed light on regional hydrogeochemical characteristics and rock weathering rates in draining basins, as well as on anthropogenic influences to the environment.

The stronger the rock weathering,the higher the Sr concentrations in river water.