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earthchem Integrating Data Management for Igneous Geochemistry

earthchem Integrating Data Management for Igneous Geochemistry. PetDB. NAVDAT. GEOROC. GEOROC. Oceanic Islands. Convergent Margins. Large Igneous Provinces. A.W. Hofmann B. Sarbas U. Nohl. NAVDAT. Cenozoic igneous rocks from Western North America. J.D. Walker R.A. Black A.F. Glazner

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earthchem Integrating Data Management for Igneous Geochemistry

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  1. earthchemIntegrating Data Management for Igneous Geochemistry PetDB NAVDAT GEOROC K.Lehnert, GSA Seattle Nov 4, 2003

  2. GEOROC • Oceanic Islands • Convergent Margins • Large Igneous Provinces A.W. Hofmann B. Sarbas U. Nohl K.Lehnert, GSA Seattle Nov 4, 2003

  3. NAVDAT • Cenozoic igneous rocks from Western North America J.D. Walker R.A. Black A.F. Glazner G.L. Farmer R.W. Carlson J.N. Grossman L. Ferrari K.Lehnert, GSA Seattle Nov 4, 2003

  4. PetDB • Oceanic Crust Generated at Mid-Ocean Ridges (incl. BAB, Seamounts, Old Oceanic Crust) K. Lehnert C.H. Langmuir W.C. Lenhardt S. Vinayagamoorthy K.Lehnert, GSA Seattle Nov 4, 2003

  5. Common Objective Create a research tool that maximizes application of the geochemical data set. • Archive data • Serve data • Facilitate data analysis K.Lehnert, GSA Seattle Nov 4, 2003

  6. PETDB NAVDAT GEOROC Achievements Data Compilation for >170,000 samples K.Lehnert, GSA Seattle Nov 4, 2003

  7. Achievements • Data Model for Rock Geochemistry • Accommodates all essential metadata • Generally applicable for sample-based petrological and chemical data for rocks (LEHNERT et al. 2000) • Compatibility • All 3 databases use the same schema K.Lehnert, GSA Seattle Nov 4, 2003

  8. Achievements • Dynamic interactive web-based user interfaces K.Lehnert, GSA Seattle Nov 4, 2003

  9. GEOROC Precompiled data sets K.Lehnert, GSA Seattle Nov 4, 2003

  10. NAVDATVisualization Migration of Volcanism in the Western US over the last 65 My Sample localities are plotted at the sample age and stay "lit" for +/-200,000yr around the nominal sample age • High-silica rocks • Andesites • Basalts K.Lehnert, GSA Seattle Nov 4, 2003

  11. PetDB Integration of Distributed Data Required: Unique Sample Identification K.Lehnert, GSA Seattle Nov 4, 2003

  12. A Growing User Community GEOROC Unique Users per month PetDB K.Lehnert, GSA Seattle Nov 4, 2003

  13. Utility of Geochemical Databases • Databases permit desktop access to the entire published literature in minutes • Allow daily questions to be addressed that would otherwise be dropped “…Within about 5 minutes of logging on for the first time, I was staring at an EXCEL file that had all the REE on basalt glasses from the EPR from 10N to 20S. And the answer to my La/Sm question. I am very impressed, we are looking at the future of geochemistry.” K.Lehnert, GSA Seattle Nov 4, 2003

  14. Utility of Geochemical Databases • Facilitate evaluation of data comparison of data from different analytical techniques or labs K.Lehnert, GSA Seattle Nov 4, 2003

  15. Utility of Geochemical Databases • Permit efficient design of research programs, in the lab and field/at sea “Catherine Chauvel and Janne Blichert-Toft contacted me recently about a sample with the fairly useless name AD3-3 that I analyzed so long ago I can't remember. They wanted to reanalyze the Hf isotopes, because they are very high. Having spent several hours looking for the sample without success, I then decided to check the database to see who else might have it (I knew it was a well circulated sample). Turns out the list of people who have analyzed this sample reads like a who's who in isotope geochemistry. Most recently, Vincent Salters analyzed it, who confirmed Patchett's high Hf ratio. Bottom line is this saves Catherine and Janne from having to reanalyze it. In that sense, the database seems to be fulfilling one of its goals.” K.Lehnert, GSA Seattle Nov 4, 2003

  16. Common Challenges • Update and maintain content • Improve functionality of interfaces • Improve database capabilities and interoperability • Ensure long-term stability of projects K.Lehnert, GSA Seattle Nov 4, 2003

  17. earthchem: Objectives • Create an Integrated Information System for Igneous Geochemistry • Take advantage of the synergies among the individual projects K.Lehnert, GSA Seattle Nov 4, 2003

  18. Benefits for the Community • Easier access to the data • Common standards • Generally applicable tools • Improved systems K.Lehnert, GSA Seattle Nov 4, 2003

  19. earthchem: Foci • Data Entry: Make population of databases more efficient • Interfaces: Optimize interaction with data for users at all levels of expertise • Interoperability: Ensure that users can retrieve and integrate data from distributed sources K.Lehnert, GSA Seattle Nov 4, 2003

  20. earthchem: Action Items • Standards for metadata and data reporting • Unique Sample Identification • Develop map Interfaces • Develop visualization tools for data selection • Integrate tools for data analysis • Implement standards for data encoding and exchange (XML, OAI, OGC, etc.) • Define common vocabularies K.Lehnert, GSA Seattle Nov 4, 2003

  21. The Culture Change Development and implementation of a “Cyberinfrastructure for Solid Earth Geochemistry” requires a change in the investigators’ mindset. “This is community’s data for which I am responsible.” K.Lehnert, GSA Seattle Nov 4, 2003

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