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

browse graphicsample locations in study area
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 Sources include published works, theses, and in a few cases, unpublished analytical data, all of which are referenced in the bibliography.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.
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]
Online Access
Distribution Formats
  • ASCII (Version: UTF-8)
    • File Specification: American Standard Code for Information Interchange (ASCII) text format.
  • tar.gz (Version: unknown)
    • File Specification: compressed Tape ARchive file
Distributor DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Dataset Point of Contact Marine Geology Data Manager
Marine Geology Data Manager
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-4603
geology.info@noaa.gov
General Documentation
Associated Resources
  • PETROS version 6.1 Worldwide Databank of Major Element Chemical Analyses of Igneous Rocks
  • PETROS, igneous rocks for research and teaching.
  • KEYBAM--a system of interactive computer programs for use with the PETROS data bank of major element analyses of igneous rocks.
  • NOAA/NCEI Marine Geology WAF
Date(s)
  • publication: 1977-01-01
  • revision: 1981-05-15
Edition: 6.1
Data Presentation Form: Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete
Data Update Frequency: Not planned - No additional versions or updates are planned by the authors.
Supplemental Information:
A FORTRAN program "KEYBAM" accompanies the data
Purpose: Research and Instruction
Use Limitations
  • Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States.
Originator(s)
  • Dr. Felix Mutschler
    Eastern Washington University
Collaborator(s)
  • Denise Jeanne Rougon
    Eastern Washington University
  • Owen P. Lavin
    Eastern Washington University
  • Roger D. Hughes
    Eastern Washington University
Publisher(s)
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Time Period: 1977-01-01 to 1981-04-30
Spatial Reference System: urn:ogc:def:crs:EPSG:4326
Spatial Bounding Box Coordinates:
N: 76
S: -69
E: 180
W: -180
Spatial Coverage Map:
Theme keywords
  • Scientific archives
  • Electronic records
  • Geology
  • Submarine geology
  • Marine geology
  • EARTH SCIENCE > Solid Earth > Geochemistry
  • EARTH SCIENCE > Solid Earth > Geochemistry > Major Elements
  • EARTH SCIENCE > Solid Earth > Rocks/Minerals/Crystals > Igneous Rocks
Data Center keywords
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Platform keywords
  • In Situ Ocean-based Platforms > SHIPS
  • In Situ Ground-based Platforms > Field Surveys
Instrument keywords
  • In Situ/Laboratory Instruments > Samplers > DREDGING DEVICES
  • In Situ/Laboratory Instruments > Samplers > Grabbers/Traps/Collectors > GRAB SAMPLERS
  • In Situ/Laboratory Instruments > Corers > ROCK CORERS
Place keywords
  • GEOGRAPHIC REGION > GLOBAL
Project keywords
  • PETROS
  • ICSU-WDS > International Council for Science - World Data System
Use Constraints
  • Use of this dataset is unrestricted.
Access Constraints
  • Access to this dataset is unrestricted.
Other 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]
Fees
  • free online download
Lineage information for: dataset
Lineage Statement Multiple versions of PETROS were archived, version 6.1 was the final, authoritative version from the author. Receive on nine track magnetic tape in EBCDIC as one file, 80 character records blocked to 4000 characers, A total of 127,700 records, 37,300 analyses (4,512 ocean samples) replacing PETROS version 4.1.
Processing Environment
Source Datasets
Lineage information for: repository
Processing Steps
  • 2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
Acquisition Information (collection)
Instrument
  • In Situ/Laboratory Instruments
Platform
  • In Situ Ocean-based Platforms > SHIPS
Last Modified: 2015-12-31
For questions about the information on this page, please email: geology.info@noaa.gov