Structural significance of the lead isotopic composition of the Shibaqinghao gold deposit,Central Inner Mongolia;

Based on the minerals plagioclase, garnet and olivine from basic-ultrabase rocks,alkaline rocks, and basalts from the Yangla copper deposit in western Yunnan, the lead isotopic composition of the mantle in the region studied was determined.

It is also proposed that how to measure the Pb isotopic compositions in soils and teas.

The writers have studied the Pb isotopic composition of quartz in hydrothermal quartz veins in the Zoige uranium deposit, and regard Pb isotopic ratios of quartz as a bridge linking up the Pb isotopic of the composition parent rocks with that of ores to determine the source of U.

The Pb isotopic compositions of galena in ores are similar to those of feldspar in augite diorite,both are characterized by a low μ value and singlestage mantle-source lead.

Study of the inclusions and the isotopic compositions of volatile components in volcanic rocks in the Okinawa Trough;

The chemical components and isotopic compositions of fluid inclusions in differe nt carbonate reservoirs in Weiyuan,Ziyang and Longchang gas fields in the southwest of Sichuan Basin are measured by means of on-line mass spectrometry connected with magnetic force crushing equipment to break fluid inclusions unde r vacuum.

Based on data of runoff and water isotopic compositions in the Yarlung Zangbo River,this paper mainly analyzes the spatio-temporal distribution of runoff and isotopic effect of precipitation in this area.

The origin of dawsonite is emphatically contrasted and analyzed by stable isotope composition of dawsonite.

Based on the information of hydrogen and oxygen isotope compositions, tritium contents, deuterium excess parameters (d-excess), this paper analyses and discusses the recharge resource and altitude ,removed patch ,detained time and hydraulic connection at the Zhenzhu spring and Feicui spring in the research area.

Based on the isotope composition features of water bodies in Sanjiashui area ,this paper use the theory of deuterium excess parameter (d) to discuss and cause of formulation, recharge source, removed patch, detained time and dynamics feature on ground water.

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.