GeoReM

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GeoReM (Geological and Environmental Reference Materials) is a database for reference materials that are of interest from a geological and environmentally relevant point of view and is freely available to scientists on the Internet. The database was created by Klaus Peter Jochum et al. (2005) at the Max Planck Institute for Chemistry in Mainz and contains published analytical, compiled and certified values ​​for mass fractions and concentrations for main and trace elements as well as isotope ratios for stable and radiogenic isotopes. Important metadata for analysis values ( measurement uncertainty , type of measurement uncertainty, measurement method and laboratory) are given, as well as information about the type of sample, manufacturer and literature.

Currently (as of January 2017) GeoReM contains around 3200 reference materials and around 40,500 analyzes from 8,900 publications and provides geochemists with information that is important for their research.

The structure of GeoReM is comparable to that of other databases for rocks of ocean islands, volcanic island arches, continents ( GEOROC ), for seabed (PetDB) and for western North America ( NAVDAT ).

GeoReM offers six different search strategies:

  1. Samples or materials (published values): Areas and tables of analytical values ​​and the corresponding metadata are provided for all reference materials along with information about the samples such as origin, availability and literature.
  2. Samples (GeoReM preferred values): Currently, “preferred values” are given for 44 frequently requested reference materials (published certified values ​​and reference values ​​that were evaluated by the GeoReM team).
  3. Chemical criteria: elements and isotope ratios can be selected and the search can be refined in terms of lowest and highest concentration values, matrix and sample form as well as in terms of laboratories and methods.
  4. Chemical criteria based on bibliography: All data on element concentrations and isotopes published in a specific year by a specific author in a selected journal can be listed.
  5. Bibliography: It is possible to search by author / co-author, by journal, by GeoReM number and by keyword.
  6. Methods and institutions: Measurement methods that are used in selected institutions and institutions that use certain measurement techniques can be listed.

literature

  • Klaus Peter Jochum, Uwe Nohl, Kirstin Herwig, Esin Lammel, Brigitte Stoll, Albrecht W. Hofmann: GeoReM: A New Geochemical Database for Reference Materials and Isotopic Standards. In: Geostandards and Geoanalytical Research 29 (3), 2005, pp. 333-338.
  • Klaus Peter Jochum, Uwe Nohl: Reference Materials in Geochemistry and Environmental Research and the GeoReM Database. In: Chemical Geology Vol. 253, 2008, pp. 50-53.
  • Klaus Peter Jochum, Jacinta Enzweiler: Reference Materials in Geochemical and Environmental Research. In: Karl Turekian, Heinrich Holland (Ed.): Treatise on Geochemistry (2nd edition), Vol. 15, 2014, pp. 43–70.

Web links