Stable isotope geochemistry is a branch of geology that investigates the age of natural materials, their origin and the processes they have undergone since formation [1]. Stable isotope analysis is also used in biogeochemical studies to monitor element cycling in ecosystems [2] and to identify geographical/regional differences for food provenance and archaeology. Of the elements of interest in ...

Article history: Stable isotope geochemistry Received 15 March 2008 Received in revised form 29 May 2008 Accepted 4 June 2008 Available online 30 June 2008

Travertine deposits are a kind of continental carbonates that form in specific chemical, physical and biological conditions. Garab travertines in southeast of Mashhad are studied based on field, geochemistry (elemental and stable isotope analysis) and hydro-geochemistry analysis. Field and petrographic characterization led to recognize of crystalline crust, raft, foam, shrub, laminated, black m...

Zircon is often used to study granites (sensu lato) and continental crust because it very resistant can be analyzed for various isotope systems that provide time source information about their parental melts. Granites with different petrological histories have distinct bulk-rock silicon compositions but unclear if these differences are also detectable in zircon of superimposed fractionation eff...

In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: a b s t r a c t a r t i c l e i n f o The distribution of sulfur isotopes in geological materials reveals information about ...

it is very important to determine the stable nitrogen isotope ratio for the nitrogenous substances in aerosols and the geochemistry behavior of stable nitrate ion isotopes in aerosols in order to elucidate the chemical and physical functions of clouds. hence, aerosol field sampling was conducted in the skies offshore from malibu beach and santa barbara, california, u.s.a. on 16 and 18 july 200...

Isotopic analysis can be performed on minerals, rocks, soil, tissue, gases, and liquids – just about anything. In view of the broad possibilities, we will only cover a few generalities here. In most instances, the element to be analyzed must be first isolated and purified before it can undergo isotopic analysis in a mass spectrometer. Purification is necessary to avoid isobaric interferences an...

Mineralogical Association of Canada Short Course 41, Toronto, May 2009, p. 19-63 INTRODUCTION High precision and accuracy with in situ analysis has been a “holy grail” for generations of stable isotope geochemists who employed a range of strategies for separation of heterogeneous samples and for interpretation of data from mixed samples. However, in situ techniques have in the past suffered fro...

1 CAS Key Laboratory of Mineralogy and Metallogeny, Guangzhou Institute of Geochemistry, The Chinese Academy of Sciences, Guangzhou 510640, China 2 State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, The Chinese Academy of Sciences, Guangzhou 510640, China 3 Research School of Earth Sciences, The Australian National University, Canberra, ACT 0200, Australia Isotop...