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Thesaurus

sand
BT	sediments
	.clastic sediments
	..sand
RT	silica
	soils
	aggregate
	construction materials
	sands
	alluvium
	gravel
	silt
	arenaceous texture
	sandstone
	terrigenous materials
	carbonate sediments
	greensand
	loam
	ergs
	sand sheets
	grains
	Ottawa Sand
	rounding
	quartz sand
	quicksand
SN	As of 1981, use sands or gravel deposits for sand as a commodity. Also includes use as a material in engineering geology.

sand bars
USE	bars

sand bodies
BT	sedimentary structures
	.planar bedding structures
	..sand bodies
RT	bedding plane irregularities
	blowouts

sand dunes
USE	dunes

Sand Hills
RT	Georgia
	Nebraska
	North Carolina
	South Carolina
	United States
SN	Belt, 20 to 40 miles wide, of low, sandy hills extending along inner border of coastal plain from central North Carolina to central Georgia. Also large area of stable dunes covered with vegetation in NW central Nebraska. Indexed with states as applicable.

sand ridges
BT	sedimentary structures
	.bedding plane irregularities
	..sand ridges
RT	bottom features
	dunes
	sand waves
	barrier islands
	barrier beaches
	shore features
	longshore bars
	bars
	ripple marks
	ergs
	megaripples
SN	Use sand waves if applicable. Added to Thesaurus in 1993.

sand volcanoes
USE	mud volcanoes

Sand Wash Basin
RT	Green River basin
	Colorado
SN	NW Colorado. Indexed with county or region as applicable. Added to Thesaurus in 1981.

sand waves
BT	sedimentary structures
	.bedding plane irregularities
	..sand waves
RT	antidunes
	dunes
	sand ridges
	ripple marks
	megaripples

sand-box models
USE	sandbox models

Sandakan Malaysia
BT	Asia
	.Far East
	..Malaysia
	...East Malaysia
	....Sabah Malaysia
	.....Sandakan Malaysia
SN	City on Sandakan Harbor on Sulu Sea in Sabah in East Malaysia. This term has multiple hierarchies.

sandarac
USE	realgar

sandbox models
UF	box models (sand)
	sand-box models
RT	tectonics
	soil mechanics
	experimental studies
	models
	simulation
	deformation
	shear modulus
	laboratory studies
	physical models
	scale models
SN	Also index physical models as applicable. Added to Thesaurus in 1998.

Sanders County Montana
BT	United States
	.Montana
	..Sanders County Montana
RT	Coeur d'Alene mining district
SN	NW Montana.

Sandia Formation
RT	Magdalena Group
	Pennsylvanian
	Peru
	Colorado
	New Mexico
SN	Pennsylvanian; in Magdalena Group of N central New Mexico and S Colorado. Also in Peru. Indexed with age as applicable. Added to Thesaurus in 1989.

Sandia Granite
BT	Chronostratigraphic Units
	.Precambrian
	..Sandia Granite
RT	New Mexico
SN	Central New Mexico. Added to Thesaurus in 1989.

Sandia Mountains
BT	United States
	.New Mexico
	..Sandia Mountains
SN	NE of Albuquerque in N central New Mexico.

Sandnes Norway
BT	Europe
	.Western Europe
	..Scandinavia
	...Norway
	....Rogaland Norway
	.....Sandnes Norway
SN	Town S of Stavanger in SW Rogaland, SW Norway.

Sandomierz Poland
BT	Europe
	.Central Europe
	..Poland
	...Tarnobrzeg Poland
	....Sandomierz Poland
UF	Sandomir Poland
SN	Town on Vistula River in central Tarnobrzeg, SE central Poland.

Sandomir Poland
USE	Sandomierz Poland

sands
RT	aggregate
	construction materials
	glass materials
	gravel deposits
	sand
	silica
SN	For sand used as a construction material, use gravel deposits. Before 1981, included use as a type of material in engineering geology; as of 1981, use sand. See List C for use as a commodity term for glass, ceramic, chemical use, etc.

sandstone
BT	sedimentary rocks
	.clastic rocks
	..sandstone
UF	psammite
RT	sand
	arenaceous texture
	terrigenous materials
	arkose
	microbreccia
	sandstone deposits
	sandstone dikes
	greensand
	gaize
	red beds
	orthoquartzite
	graywacke
	litharenite
	subgraywacke
	metasandstone
	sublitharenite
SN	As of 1981, use sandstone deposits for sandstone as a commodity.

Sandur India
BT	Asia
	.Indian Peninsula
	..India
	...Karnataka India
	....Sandur India
SN	Town in central Karnataka, SW India.

sandurs
USE	outwash plains

Sandusky River basin
BT	United States
	.Ohio
	..Sandusky River basin
RT	Crawford County Ohio
	Sandusky County Ohio
	Seneca County Ohio
	Wyandot County Ohio
SN	N Ohio. Indexed with counties as applicable. Added to Thesaurus in 1981.

Sandy Hook
RT	Bahamas
	Monmouth County New Jersey
	San Salvador
SN	Peninsula in NE Monmouth County constituting S side of entrance to lower New York Bay. Also on San Salvador, Bahamas. Indexed with county or region as applicable.

sandy texture
USE	arenaceous texture

Scientific Earth Drilling Information Service - SEDIS