Suspended particulate materials(SPM)were investigated for their iron isotope composition so as to assess their isotope behaviors during the iron biogeochemical cycle in summer in the Aha Lake of Guizhou Province.

Discussion On Geology and Isotope Characters of Jiusangou Gold Deposit in Wangqing,Jilin Province;

Gas isotope characteristics analysis in the south of eastern sag in Liaohe Basin;

Primary discussion on isotope characteristics of coalbed gas of Qinshui basin;

Study on characteristics of S,Pb isotopes of the Pb-Zn deposits,Au deposits in Xicheng area and their metallogenic relationship;

Comparative studies on Pb isotope ratios of corrosion rinds and metal cores of bronze vessels;

Based on a systematic lithologic and sedimentary facies analysis,this paper deals in detail with Pb isotope characteristics of dolomite and associated limestone in the Long'eni-Angdar Co ancient oil accumulation.

The lead and sulfur isotope analysis suggests that the tremendous thick and stringer ore bodies may be formed by fluid of different geologic periods.

The new method of the thermal ionization mass spectrometry permits analysis of sulfur isotope with a precision for δ34S of 0.

Acid rain has been one of the most serious environment problems in the world and the study of sulfur isotope can help us find the sulfur source,composition and have important significance for research to harness acid rain.