The ocean drilling and Lamont-Doherty visual core descriptions in modern database/GIS; illustrated uses

Author(s): Jenkins, Chris J.
Author Affiliation(s): Primary:
University of Colorado, Institute of Arctic and Alpine Research, Boulder, CO, United States
Volume Title: Geological Society of America, 2010 annual meeting
Source: Abstracts with Programs - Geological Society of America, 42(5), p.246; Geological Society of America, 2010 annual meeting, Denver, CO, Oct. 31-Nov. 3, 2010. Publisher: Geological Society of America (GSA), Boulder, CO, United States. ISSN: 0016-7592 CODEN: GAAPBC
Note: In English
Summary: The seafloor visual core descriptions of the Ocean Drilling Program (DSDP, ODP and IODP phases) have been brought into modern database format and standards. The same operation was done with the Lamont-Doherty Earth Observatory (LDEO) seafloor core collection of 14,000 piston and gravity cores worldwide. Computational methods of the dbSEABED database were used, which previously had integrated over 2 million seafloor descriptions for a global mapping of the seafloor sediment/rock substrates. The methods included: (i) assembly of data resources, (ii) breaking the descriptions into the observational units and fine layers; (iii) applying linguistic tools such as replacing words and clichés with tokens (into clean, controlled language), (iv) application of a dictionary/thesaurus which gives meanings in fuzzy set theory, (v) error trapping and QAQC filtering, (vi) creation of file set suited to use in GIS, RDMS and other software applications. We show several applications of this data: (i) relational database queries to narrowly select samples, (ii) graphical core logs for publication, (iii) ocean-basin cross-sections of sediment facies and components by chronostratigraphy, (iii) data analysis/visualization of the stratigraphic records for color, components, features, (iv) exploration of the data using advanced applications such as GeoMapApp and Google Earth. The data are now publicly available as release 1.0, and will be updated as the work is refined. I acknowledge Bill Ryan of Columbia University for discussions and support; also the Consortium of Ocean Leadership.
Year of Publication: 2010
Research Program: ODP Ocean Drilling Program
Key Words: 07 Marine Geology and Oceanography; Academic institutions; Applications; Chronostratigraphy; Collections; Cores; Cross sections; Data bases; Description; Drilling; Geographic information systems; Information systems; Lamont-Doherty Earth Observatory; Marine drilling; Ocean Drilling Program; Ocean floors; Visualization
Record ID: 2011086668
Copyright Information: GeoRef, Copyright 2017 American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States

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