IODP SEDIS - Thesaurus -

Midwest
BT	United States
	.Midwest
UF	Middle West (United States)
	North Central (United States)
	North-Central (United States)
RT	Eastern Gas Shales Project
	Tippecanoe Sequence
	Mississippi Valley
	Sauk Sequence
SN	As of 1993, term is used only for broad general discussions. N part of central U.S. Region comprising states N of the Ohio and Missouri rivers plus the E edge of the Great Plains. Before 1978, also search United States AND middle west or north-central or

Midwest Lake
RT	Athabasca District
	Saskatchewan
SN	N Saskatchewan. Indexed with province or region as applicable. Added to Thesaurus in 1985.

Midwest Lake Deposits
BT	Canada
	.Western Canada
	..Saskatchewan
	...Midwest Lake Deposits
RT	Athabasca District
	uranium ores
SN	N Saskatchewan. Before 1993, also search Midwest Lake. Added to Thesaurus in 1993.