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Discussion papers
https://doi.org/10.5194/essd-2019-50
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-2019-50
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 17 Apr 2019

Research article | 17 Apr 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Earth System Science Data (ESSD).

Global whole-rock geochemical database compilation

Matthew Gard1, Derrick Hasterok1,2, and Jacqueline Halpin3 Matthew Gard et al.
  • 1Department of Earth Sciences, University of Adelaide, North Terrace, SA, 5005, Australia
  • 2Centre for Tectonics Research and Exploration (TRaX), University of Adelaide, North Terrace, SA, 5005, Australia
  • 3Institute for Marine and Antarctic Studies (IMAS), University of Tasmania, Hobart, Tasmania, 7001, Australia

Abstract. Dissemination and collation of geochemical data are critical to promote rapid, creative and accurate research and place new results in an appropriate global context. To this end, we have assembled a global whole-rock geochemical database, with other associated sample information and properties, sourced from various existing databases and supplemented with numerous individual publications and corrections. Currently the database stands at 1,023,490 samples with varying amounts of associated information including major and trace element concentrations, isotopic ratios, and location data. The distribution both spatially and temporally is quite heterogeneous, however temporal distributions are enhanced over some previous database compilations, particularly in terms of ages older than ~ 1000 Ma. Also included are a wide range of computed geochemical indices, physical property estimates and naming schema on a major element normalized version of the geochemical data for quick reference. This compilation will be useful for geochemical studies requiring extensive data sets, in particular those wishing to investigate secular temporal trends. The addition of physical properties, estimated by sample chemistry, represents a unique contribution to otherwise similar geochemical databases. The data is published in .csv format for the purposes of simple distribution but exists in a format acceptable for database management systems (e.g. SQL). One can either manipulate this data using conventional analysis tools such as MATLAB®, Microsoft® Excel, or R, or upload to a relational database management system for easy querying and management of the data as unique keys already exist. This data set will continue to grow, and we encourage readers to contact us or other database compilations contained within about any data that is yet to be included. The data files described in this paper are available at https://doi.org/10.5281/zenodo.2592823 (Gard et al., 2019).

Matthew Gard et al.
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Matthew Gard et al.
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Global whole-rock geochemical database compilation M. Gard, D. Hasterok, and J. A. Halpin https://doi.org/10.5281/zenodo.2592822

Matthew Gard et al.
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Latest update: 25 May 2019
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Short summary
We compiled a database of more than 1 million chemical analyses of igneous, sedimentary and metamorphic rocks, derived from existing databases, governmental data and academic studies. Our database enhances temporal distributions, simplifies the structure, and adds geochemical indices, naming schema, and estimates of physical properties such as density. This database provides a source for the rapid production of crustal models and chemical evolution throughout 4 billion years of geologic history.
We compiled a database of more than 1 million chemical analyses of igneous, sedimentary and...
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