IODP SEDIS - Thesaurus -

geophys

geophysical
SN	A valid term through 1977. After 1977, use geophysical maps, or geophysical methods or geophysical surveys.

geophysical exploration
SN	Not a valid GeoRef index term after 1971. Used in subfiles E, N, T and B. Now use geophysical methods or geophysical surveys. See exploration.

geophysical investigations
SN	Not a valid GeoRef index term after 1970. See geophysical methods, geophysical surveys, well-logging.

geophysical logging
USE	well-logging

geophysical maps
BT	maps
	.geophysical maps
RT	geophysical survey maps
SN	Before 1978, search maps AND geophysical.

geophysical methods
NT	acoustical methods
	Earth-current methods
	electrical methods
	electromagnetic methods
	gravity methods
	infrared methods
	magnetic methods
	magnetotelluric methods
	neutron-gamma methods
	neutron-neutron methods
	radioactivity methods
	reflection methods
	refraction methods
	seismic methods
RT	aeromagnetic maps
	air guns
	airborne methods
	apparent resistivity
	arrays
	audiomagnetotelluric methods
	automated analysis
	autoradiography
	AVO methods
	backscattering
	basin analysis
	bathymetry
	borehole televiewers
	Bouguer anomalies
	CALCRUST
	conductive materia
SN	Used for discussions which stress methodology of applied geophysics. To eliminate surveys, search geophysical methods NOT geophysical surveys. For surveys, also index geophysical surveys and the area.

geophysical observations
SN	For surveys, search geophysical surveys. Also see geophysics.

geophysical profiles
NT	gravity profiles
	magnetic profiles
	seismic profiles
RT	COCORP
	geophysical methods
	geophysical surveys
	geotraverses
	lidar methods
SN	Before 1981, search geophysical AND profiles. Added to Thesaurus in 1981.

geophysical research
SN	Not a valid GeoRef index term after 1971. Used in subfile G. Now use geophysical methods or geophysics as applicable. See geophysical surveys for surveys.

geophysical survey maps
BT	maps
	.geophysical survey maps
RT	geophysical methods
	geophysical surveys
	aeromagnetic maps
	magnetic survey maps
	electromagnetic survey maps
	geophysical maps
	gravity survey maps
	radioactivity survey maps
	seismic survey maps
SN	Also search maps AND geophysical surveys and area. Added to Thesaurus in 1985.

geophysical surveys
BT	surveys
	.geophysical surveys
RT	acoustical methods
	aeromagnetic maps
	airborne methods
	automated analysis
	basin analysis
	Bouguer anomalies
	apparent resistivity
	arrays
	audiomagnetotelluric methods
	bathymetry
	deep seismic sounding
	CSAMT methods
	deep magnetic sounding
	dipole-dipole methods
SN	For geophysical methods applied to specific areas. The methods are generally those of exploration and primarily concerned with the shallow structure of the Earth. Geophysical surveys is used with specific geophysical methods terms. For surveys of specific

geophysics
RT	adiabatic demagnetization
	alpha quartz
	alternating field demagnetization
	anvil cells
	atmosphere
	backscattering
	Born approximation
	chemical demagnetization
	core
	crust
	deep seismic sounding
	deformation
	demagnetization
	dilatancy
	direct problem
	dynamos
	Earth
SN	For general treatments stressing the profession and the discipline plus experimental studies on minerals and other materials.

Geophysics (category)
SN	Geophysics, GeoRef category code 17, is one of thirty categories used to classify documents in GeoRef. Each reference in GeoRef is assigned one or more categories. Categories can be used, in addition to Terms, to refine searches (See List A.).