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Geoscience Data and Collections: National Resources in Peril D Types of Geoscience Data and Collections TABLE D-1 Examples of Geoscience Collections Auger samples Fluid samples (oil, gas, water) Geochemical powder samples Hand samples (incl. geotechnical, rock, and mineral) Ice cores Paleontological samples (micro/macro) Rock cores Rock cuttings Sediment cores Sidewall cores Thin sections and polished sections Type stratigraphic sections TABLE D-2 Examples of Derived and Indirect Geoscience Data Geophysical Data Paleomagnetic resistivity Potential fields Seismic data (hardcopy, films, digital) Seismic refraction 2-D and 3-D seismic reflection Surface & airborne data Velocity Vertical seismic profiles Well logs (paper, fiche, digital) Petrophysical Data Lithology logs (incl. mud and gas logs) Routine (porosity, permeability, grain density) Special (porosity & permeability under confining stress, Archie cementation, saturation exponent, capillary pressure, relative permeability) Geochemical Data Analyses—hard copy, digital Other Data Maps (topographic, geologic, subsurface, base, lease ownership, digital well spots, alteration, soils, groundwater studies, sample location, etc.) Field notes Paper reports Photographs (aerial, satellite, slides, prints, planetary) Scout tickets (fiche and paper) Drilling/completion reports Drill stem & other tests Stratigraphic tops Production history Source-rock maturity analysis