PETROS - Worldwide Databank of Major Element Chemical Analyses of Igneous Rocks

Metadata Updated: January 9, 2016

PETROS is a worldwide data bank of major element chemical analyses of igneous rocks compiled for research and teaching purposes by Dr. Felix Mutschler and Staff at Eastern Washington University. PETROS version 6.1 includes 37,300 major element chemical analyses divided into 307 major groups representing geographic areas or petrologic provinces. The data are for 4,512 cores, grabs and dredges. Also included are 468 average igneous rock compositions calculated by various authors, a bibliography of information sources, and complete format/operating instructions for PETROS. In compiling PETROS, as few analyses as possible were rejected, allowing data bank users to exercise their own judgment on data values. Sources include published works, theses, and in a few cases, unpublished analytical data, all of which are referenced in the bibliography. Generally, only those analyses which included determinations of at least eight major oxides were accepted. Some quality control was exercised, and duplicate analyses, where possible were eliminated. Latitude/longitude information for samples is to the nearest one degree. An accompanying program listing in FORTRAN for searching PETROS is included with the data file, along with complete format documentation.

Access & Use Information

Downloads & Resources

Dates

Metadata Date December 31, 2015
Metadata Created Date September 26, 2015
Metadata Updated Date January 9, 2016
Reference Date(s) January 1, 1977 (publication), May 15, 1981 (revision)
Frequency Of Update notPlanned

Metadata Source

Harvested from NOAA CSW Harvest Source

Graphic Preview

sample locations in study area

Additional Metadata

Resource Type Dataset
Metadata Date December 31, 2015
Metadata Created Date September 26, 2015
Metadata Updated Date January 9, 2016
Reference Date(s) January 1, 1977 (publication), May 15, 1981 (revision)
Responsible Party DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (Point of Contact)
Contact Email
Access Constraints Cite as: Mutschler, F.E., Rougon, D.J., Lavin, O.P., and R.D. Hughes (1981): PETROS version 6.1 Worldwide Databank of Major Element Chemical Analyses of Igneous Rocks. NOAA National Centers for Environmental Information. doi:10.7289/V5QN64NM [access date], Access to this dataset is unrestricted., Use of this dataset is unrestricted.
Bbox East Long 180
Bbox North Lat 76
Bbox South Lat -69
Bbox West Long -180
Coupled Resource
Frequency Of Update notPlanned
Graphic Preview Description sample locations in study area
Graphic Preview File https://www.ngdc.noaa.gov/mgg/image/geolin/preview42995006.gif
Graphic Preview Type GIF
Guid gov.noaa.ngdc.mgg.geology:G00030
Harvest Object Id 52956ff0-6f31-4b7d-ae60-6442f4fc1032
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States.
Metadata Language eng: USA
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System urn:ogc:def:crs:EPSG:4326
Spatial Harvester True
Temporal Extent Begin 1977-01-01
Temporal Extent End 1981-04-30

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