isotopic composition

It quickly became clear, however, that the isotopic composition of meteorites differed not at all from that of the Earth itself.

The trick they used to do this was to look at the isotopic composition of the oxygen in the wood of local trees.

The ideal choice, when isotopic composition is used to investigate the source of copper ore, would seem to be copper itself.

and preliminary studies indicate virtually uniform isotopic composition of the lead from a single copper-ore source.

This paper also discussed the method to analyze the individual hydrocarbon isotopic composition from crude oil and coal rock samples.

Compared with water amount, the quality of aqueous medium has less effect on the yields, components and hydrogen isotopic composition.

The isotopic composition of hydrogen and oxygen in heavy water are analyzed by using a high-resolution mass spectrometer.

The isotopic composition of lead, sulphur and carbon demonstrate a complex source of ore forming material.

Stable isotopic composition of fossil ostracode is used as an ideal proxy for paleo- lake sedimentary environments.

how could such a change in isotopic composition have come about

Stable carbon isotopic composition of polycyclic aromatic hydrocarbons in soil and its implications for the pollutants tracing

Environmental Isotopic Composition of Natural Water in Ordos Cretaceous Groundwater Basin and Its Significance for Hydrological Cycle

Thermolysis Production of Lake Carbonatite Organic Matter and its Carbon Isotopic Composition Characteristic

Isotopic Composition and Concentration of Dissolved Boron in a Freshwater Seawater Mixing Plume of the Yangtze River Estuary

Isotopic composition of groundwater and prospecting indicators of a uranium metallogenic belt

Sulfur isotopic composition of modern seafloor hydrothermal sediment and its geological significance

Carbon and oxygen isotopic composition in a stalagmite from Qingjiang, Hubei, and their paleoclimatic significance

Carbon Isotopic Composition of Organic Matter in Co-Rich Ferromanganese Crust and Its Implication for Paleoceanography

Finding of the Dolostones with Special Carbon Isotopic Composition and Its Significance

Sulfur isotopic composition of acid deposition in South China Regions and its environmental significance

Hydrogen Isotopic Composition of n-alkanes Extracted from Terrestrial Plants and Its Paleoenvironmental Implications

Pyrites and Sulfur Isotopic Composition near the Permian-Triassic Boundary in Meishan, Zhejiang

Evolution of Oceanic Nd Isotopic Composition in the Cenozoic and Its Environmental Significance

Lead isotopic composition of sediments from West Lake and the Grand Canal in Hangzhou and its significance for lead source tracing

Evolution of Carbon Isotopic Composition in Pyrolytic Gases Generated from Coal and Its Main Macerals

Accurate Measurement of Neodymium Isotopic Composition Using Neptune Multiple Collector Inductively Coupled Plasma Mass Spectrometry

A preliminary study on calculating annual average temperature from the oxygen isotopic composition of fossil mammal tooth phosphate

Standard Test Method for Determination of Uranium Content and Isotopic Composition by Isotope Dilution Mass Spectrometry

Determination of uranium and plutonium content and isotopic composition; mass spectrometric method

Characteristics of isotopic composition and fluid metallogenesis of the Baiyin Ore Field

The Research on the Environmental Significance of Atmospheric Sulfur Isotopic Composition in Hengyang

Stable Isotopic Composition of Carbonate in Aerosol of Northwest Dust Sources of China and Its Application for Aeolian Sources

Measurement of Nitrogen Isotopic Composition of Soil Samples by Element Analysis-Isotope Mass Spectrometry

Determination of the Concentration and Isotopic Composition of Plutonium in Soil

Determination of the Noble Gas Isotopic Composition in Rocks and Minerals by Mass Spectrometry

Measurement of Nitrogen Isotopic Composition of Soil Samples by Element Analysis-Mass Spectrometry

Characteristics of Carbon Isotopic Composition of Soluble Organic Components of Deep Source Rocks in Tarim Basin

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

Zircon ages and Hf isotopic composition of gneisses from the Rongcheng ultrahigh-pressure terrain in the Sulu orogenic belt

Lead isotopic composition of volcanic rocks in the Qoltag tectonic belt, East Tianshan, and its significance

Feasibility Analysis on Isotopic Composition and Mass Measurement for Plutonium

Discrimination of the production sites of ancient pottery by using lead isotopic composition

Analysis of Hydrogen Isotopic Composition in Single Hydrocarbon by Mass Spectrometry

Stomata, Carbon Isotopic Composition of the Plants from the Neogene in West Yunnan and Paleoenvironmental Analysis

Analysis and Application of Carbon Isotopic Composition of Natural Gases in the Western Sichuan Basin

Subpolar Mode Water formation traced by neodymium isotopic composition

Zircon age and Sr-Nd-Hf isotopic composition of migmatite in the eastern Tengchong block, western Yunnan

Homogenization of the isotopic composition in the solar nebula

Isotopic composition of stratospheric ozone

Stable isotopic composition of organic carbon in soil aggregates

Alkane carbon isotopic composition and gas source in giant gas fields of Ordos Basin

Isotopic composition and origin of snow over Siberia

The Effect of Sample Size on the Measurement of Isotopic Composition of Nano - gram Boron

Stable isotopic composition of water vapor in the tropics

The C stable isotopic composition (d C) of plant