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نمایش تعداد 1-10 از 198
Investigating geochemistry and the stable isotope (δ 18O & δ 2H) composition of Karde Carbonate lake water (NE Iran)
's salt (Na2SO4) in the upper hand basin.
In the classical plot of δ 18O vs δ 2H, the isotopic signature of lake water samples (-6.82‰, -48.3‰) plot further to (LMWL) comparing to the local ground water (-8.21‰, -57.5‰) and upstream river (-8...
مطالعه ایزوتوپ های پایدار h,c,o در اسکارن ها و گرانیتوییدهای ناحیه سنگان خواف
Sangan
Mineralogy, Stable isotope Geochemistry and Paragenesis of Magnesite Deposits from ophiolite belt of of Eastern Iran.
Mineralogy, Stable isotope Geochemistry and Paragenesis of Magnesite Deposits from ophiolite belt of of Eastern Iran....
Stable isotope aspects of modern molluscs, brachiopods, and marine cements from cool-water carbonates, Lacepede Shelf, South Australia
Abstract--The isotopic composition of some modern gastropods, bivalves, and brachiopods from the
Lacepede Shelf of South Australia were investigated to determine the isotopic equilibrium and disequilibrium
states of biogenic and non...
Water isotopes as tools to document oceanic sources of precipitation
Influences of relative humidity and Indian monsoon precipitation on leaf water stable isotopes from the southeastern Tibetan Plateau
Irankuh lead-zinc mining district, southern Isfahan, Iran: Evidences of geology, fluid inclusion and isotope geochemistry
34S= -1.8 to+0.7‰)
may be sulfide-bearing sedimentary rocks. However, the S isotope values cannot show
a particular source. Very low radiogenic Pb isotopes (206Pb/204Pb=18.419-18.476,
207Pb/204Pb=15.634-15.663, 208Pb/204Pb=38...
Petrography and Geochemical Signatures in Cracks Filling Calcite Sequences in Septarian Concretions, Sanganeh Formation, Kopet-Dagh Basin, NE Iran
isotopes signatures reveal that the septarian concretions are multiphase and display several stages of cementation (G2 to G4). The earliest carbonate matrix (septarian body, called G1) with δ13 C and δ18 O values of 0.01‰ and -21‰ PDB, respectively...