IODP SEDIS - Thesaurus -

Tonga
BT	Oceania
	.Polynesia
	..Tonga
NT	Eua Island
	Tofua
UF	Friendly Islands
	Tonga Arc
	Tonga Archipelago
	Tonga island arc
	Tonga Islands
RT	East Pacific Ocean Islands
	Pacific Ocean
	Ata Caldera
	Tonga Trench
SN	An archipelago of about 150 islands NE of New Zealand. Formerly a British protectorate which became independent in 1970.

Tonga Arc
USE	Tonga

Tonga Archipelago
USE	Tonga

Tonga island arc
USE	Tonga

Tonga Islands
USE	Tonga

Tonga Trench
BT	Pacific Ocean
	.South Pacific
	..Southeast Pacific
	...Tonga Trench
RT	Tonga
	DSDP Site 595
	Leg 91
	DSDP Site 596
SN	E of the Tongtapu group of the S Tonga Islands. This term has multiple hierarchies.

Tonganoxie Sandstone
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Carboniferous
	....Pennsylvanian
	.....Upper Pennsylvanian
	......Virgilian
	.......Tonganoxie Sandstone
UF	Tunganoxie Sandstone Member
RT	Missouri
	Kansas
SN	Of Stranger Formation. Underlies Westphalia Limestone Member. In E Kansas and NW Missouri.

Tongariro
BT	Australasia
	.New Zealand
	..Tongariro
RT	volcanoes
	North Island
	Taupo volcanic zone
	Ngauruhoe
SN	Volcano in Tongariro National Park, central North Island, New Zealand. Also index North Island. Added to Thesaurus in 1993.