Recent News

  • CZChemDB and EarthChem: Critical zone geochemical data.

    June 2011: EarthChem’s affiliates at PennState are presenting a paper at the Ninth International Symposium on the Geochemistry of the Earth’s Surface (GES9), June 2-7 at the University of Colorado, Boulder. The article, published in Applied Geochemistry, describes the CZChemDB, a relational database developed for critical zone rock and regolith geochemical data.


    The Penn State group, part of the Susquehanna Shale Hills Critical Zone Observatory, is teaming with EarthChem to make CZChemDB data discoverable by the EarthChem Portal. This connection broadens the scope of EarthChem geochemical data to the critical zone - the Earth’s outer layer from vegetation canopy to the soil and groundwater that sustains human life.


    Niu, X., Lehnert, K.A., Willams, J., and Brantley, S, 2011. CZChemDB and EarthChem: Advancing management and access of critical zone geochemical data, Applied Geochemistry, 26, Supplement 1, S108-S111. [pdf link]


  • New Data Submission Templates

    May 2011: Data Submission Templates [link] have been posted to help authors submit their data to the GfG systems. These templates are customized for different analytical techniques (electron microprobe, mass spec) and materials (bulk sample, mineral, melt inclusion, vent fluid) and help authors to document their data according to the recommendations of the Editors' Roundtable. Authors can also add their own fields to the templates. Instructions and suggested vocabularies are included in these .xls workbook templates.


    The templates provide a standardized way to submit data to GfG, including our Geochemical Resource Library (GRL) and the GfG databases PetDBSedDB, and VentDB.


    The full list of templates is posted at the EarthChem website:



  • New Features in EarthChem Portal

    June 2010: Announcing new features of the EarthChem Portal

    • SedDB data now available: Geochemical data for marine bulk sediments from the SedDB database ( are now accessible at the EarthChem portal.
    • Search by Geological Province EarthChem
    • Hierarchy for search by sample type
    • Search by volcano name
  • New EarthChem Portal version released

    Sept 2009: The EarthChem Portal has been upgraded with new functionality!


    A new version of the EarthChem Portal has been released that features the following new functionality:

    • Search by sample age;
    • Search by material type: select between BULK rock data (Whole rock/rock/glass/groundmass), WHOLE ROCK/ROCK data only, GLASS (volcanic glass) data only, and GLASS/INCLUSION data only;
    • Search by CIPW normalized composition
    • Access to 'Affiliate Data': Searches at the EarthChem Portal now will return links to geochemical data in the GANSEKI database, the Deep Seafloor Rock Sample Database of the Japan Agency for Marine-Earth Science and Technology (JAMSTEC). GANSEKI is an Affiliate of the EarthChem Global Data Network.