earthchem Integrating Data Management for Igneous Geochemistry

K.Lehnert, GSA Seattle Nov 4, 2003

earthchemIntegrating Data Management for Igneous Geochemistry

PetDBNAVDAT

GEOROC

K.Lehnert, GSA Seattle Nov 4, 2003

GEOROCGEOROCA.W. HofmannA.W. HofmannB. SarbasB. SarbasU. NohlU. Nohl

• Large Igneous Provinces

• Convergent Margins• Oceanic Islands

K.Lehnert, GSA Seattle Nov 4, 2003

NAVDATNAVDAT • Cenozoic igneous rocks from Western North America

J.D. WalkerJ.D. WalkerR.A. BlackR.A. BlackA.F. GlaznerA.F. GlaznerG.L. FarmerG.L. FarmerR.W. CarlsonR.W. CarlsonJ.N. GrossmanJ.N. GrossmanL. FerrariL. Ferrari

K.Lehnert, GSA Seattle Nov 4, 2003

PetDBPetDB • Oceanic Crust Generated at Mid-Ocean Ridges (incl. BAB, Seamounts, Old Oceanic Crust)

K. LehnertK. LehnertC.H. LangmuirC.H. LangmuirW.C. LenhardtW.C. LenhardtS. VinayagamoorthyS. Vinayagamoorthy

K.Lehnert, GSA Seattle Nov 4, 2003

Common ObjectiveCommon 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

GEOROC

NAVDATPETDB

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AchievementsAchievements

Data Compilation for >170,000 samples

K.Lehnert, GSA Seattle Nov 4, 2003

AchievementsAchievements

Data Model for Rock Geochemistry

(LEHNERT et al. 2000)

• Accommodates all essential metadata

• Generally applicable for sample-based petrological and chemical data for rocks

Compatibility • All 3 databases use the same schema

K.Lehnert, GSA Seattle Nov 4, 2003

AchievementsAchievements

Dynamic interactive web-based user interfaces

K.Lehnert, GSA Seattle Nov 4, 2003

GEOROC GEOROC Precompiled data sets

K.Lehnert, GSA Seattle Nov 4, 2003

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NAVDATNAVDAT Visualization

• High-silica rocks• Andesites• Basalts

Sample localities are plotted at the sample age and stay "lit" for +/-200,000yr around the nominal sample age

Migration of Volcanism in the Western US over the last 65 My

K.Lehnert, GSA Seattle Nov 4, 2003

PetDB PetDB Integration of Distributed Data

Required:

Unique Sample Identification

K.Lehnert, GSA Seattle Nov 4, 2003

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A Growing User CommunityA Growing User Community

PetDB

GEOROCGEOROCUnique Users per month

K.Lehnert, GSA Seattle Nov 4, 2003

Utility of Geochemical DatabasesUtility of Geochemical Databases

• Databases permit desktop access to the Databases permit desktop access to the entire published literature in minutesentire published literature in minutes

• Allow daily questions to be addressed that Allow daily questions to be addressed that would otherwise be droppedwould 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 10N to 20S. 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

Utility of Geochemical DatabasesUtility of Geochemical Databases

• Facilitate evaluation of dataFacilitate evaluation of data

comparison of data from different analytical techniques or labs

K.Lehnert, GSA Seattle Nov 4, 2003

Utility of Geochemical DatabasesUtility of Geochemical Databases

• Permit efficient design of research Permit efficient design of research programs, in the lab and field/at seaprograms, 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

Common ChallengesCommon Challenges

• Update and maintain contentUpdate and maintain content• Improve functionality of Improve functionality of

interfacesinterfaces• Improve database capabilities Improve database capabilities

and interoperabilityand interoperability• Ensure long-term stability of Ensure long-term stability of

projectsprojects

K.Lehnert, GSA Seattle Nov 4, 2003

earthchem: Objectivesearthchem: Objectives

• Create an Integrated Information Create an Integrated Information System for Igneous GeochemistrySystem for Igneous Geochemistry

• Take advantage of the synergies Take advantage of the synergies among the individual projectsamong the individual projects

K.Lehnert, GSA Seattle Nov 4, 2003

Benefits for the CommunityBenefits for the Community

• Easier access to the dataEasier access to the data

• Common standardsCommon standards

• Generally applicable toolsGenerally applicable tools

• Improved systemsImproved systems

K.Lehnert, GSA Seattle Nov 4, 2003

earthchem: Fociearthchem: Foci

• Data Entry:Data Entry: Make population of Make population of databases more efficientdatabases more efficient

• Interfaces:Interfaces: Optimize interaction with Optimize interaction with data for users at all levels of data for users at all levels of expertiseexpertise

• Interoperability:Interoperability: Ensure that users Ensure that users can retrieve and integrate data from can retrieve and integrate data from distributed sourcesdistributed sources

K.Lehnert, GSA Seattle Nov 4, 2003

earthchem: Action Itemsearthchem: Action Items

• Standards for metadata and data reportingStandards for metadata and data reporting• Unique Sample IdentificationUnique Sample Identification• Develop map InterfacesDevelop map Interfaces• Develop visualization tools for data selectionDevelop visualization tools for data selection• Integrate tools for data analysisIntegrate tools for data analysis• Implement standards for data encoding and Implement standards for data encoding and

exchange (XML, OAI, OGC, etc.)exchange (XML, OAI, OGC, etc.)• Define common vocabulariesDefine common vocabularies

K.Lehnert, GSA Seattle Nov 4, 2003

The Culture ChangeThe Culture Change

Development and implementation of a Development and implementation of a “Cyberinfrastructure for Solid Earth “Cyberinfrastructure for Solid Earth Geochemistry”Geochemistry” requires a change in requires a change in the investigators’ mindset.the investigators’ mindset.

““This is community’s data for which I This is community’s data for which I am responsible.am responsible.”