The canisters 26 therefore have little effect on the reactivity of the reactor. The invention also provides a method of producing isotopes by neutron bombardment, in which the parent isotope is located at an end of a fuel element 10. GEOFFREY * CONSTANTINE ...
Sr Isotopes and trace element patterns in sub-calcic garnets : A perspective on diamond-bearing fluids ? 来自 Semantic Scholar 喜欢 0 阅读量: 6 作者:O Klein,Bendavid,D.,Graham,T.,Kleine,M.,Touboul,C.,Burkhardt 摘要: Sub-calcic garnets are typical xenocrysts in kimberlites. They are ...
Further evidence for the involvement for a magmatic–hydrothermal fluid comes from oxygen and hydrogen isotopes, and fluids inclusion analyses in the HT calcic–iron alteration zones of the Port Radium–Echo Bay district that are, similar to the HT calcic–iron alteration zones of the Fab system ...
a second isotope of the first element having a property that is the same as a property of the first isotope, the property being one of a mechanical, a chemical, and an electrical property, the first and the second isotopes each having a natural abundance in the first element and an atomic...
Keywords: Neoproterozoic,Granitic complex,Basaltic dike and enclave,SHRIMP U-Pb zircon dating,Sr-Nd isotopes,South China新元古代,花岗质岩石,基性岩墙和包体,锆石SHRIMP,Sm-Nd同位素,华南 Full-Text Cite this paper Add to My Lib Abstract: Neoproterozoic magmatism was very intense at the western marg...
We consider low variance in our ratio plots to reflect a lack of reworking rather than late-diagenetic overprinting because of universally low REE concentrations, rarity of bone modifications, confinement of bones to a single horizon, and retention of endogenous stable isotopes in teeth. Ce/Ce* ...
The absolute trace quantities were determined for some ten elements by using the cross section curves and calculating the ranges of the bombarding particles in the samples, and measuring the absolute beam current and the intensities of the characteristic gamma-lines of the activated isotopes. The ...
geochemical reference materialsZircon megacrysts from the Mud Tank carbonatite, Australia, are being used in many laboratories as a reference material for LA㊣CP㎝S U㏄b dating and trace element analysis, and LA㎝C㊣CP㎝S determination of Hf isotopes. We summarise a database of > 10,000 ...
Evidence for the existence of long-lived isotopes with atomic mass numbers 261 and 265, and abundance of (1-10)脳10-10 relative to Au, has been found in a study of natural Au using inductively coupled plasma-sector field mass spectrometry. The measured masses match the predictions for the ...
Geochemical modelling that combines the use of trace elements and isotopes can be used to distinguish between different mechanisms of water-rock interaction, including diffusive and advective transport of diagenetic constituents in meteoric pore fluids during the recrystallization of carbonate minerals. ...