isotopic

adj.

同位素的，合痕的；

isotopic tracer示踪同位素；同位素指示剂；示踪物

1. How could such a change in isotopic composition have come about?
   同位素的组成有这样的变化，究竟是如何发生的？
2. Conversely,the isotopic characteristics will be well explained by assuming that the UHPM occurred in the crust instead in the upper mantle.
   相反，如果认为大别山超高压变质岩就在地壳内形成，则大别山超高压变质岩同位素的所有特征就很好解释了。

Isotopic variation in meteoric waters
Isotopic Variations in Meteoric Waters
On the Isotopic Chemistry of Carbonates and a Paleotemperature Scale
Hf isotopic compositions of the standard zircons and baddeleyites used in U-Pb geochronology
Hf isotopic compositions of the standard zircons and baddeleyites used in U–Pb geochronology
Isotopic standards for carbon and oxygen and correction factors for mass-spectrometric analysis of carbon dioxide
Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes
Elemental carbon in sediments: Determination and isotopic analysis in the presence of kerogen
Interstellar SiC in the Murchison and Murray meteorites: Isotopic composition of Ne, Xe, Si, C, and N
Ple?ovice zircon — A new natural reference material for U–Pb and Hf isotopic microanalysis