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SUBJECT TERMS /
rock formations
Allen Formation
Alpine Schist
Alum Shale Formation
Andrew Formation
Antimonio Formation
Ara Group
Arcadia Formation
Baskunchak Series
Beacon Supergroup
Beaufort Formation
Beaufort Group
Beaumont Formation
Beaverhead Formation
Bhander Group
Blackstone Formation
Blackstone Group
Bluff Formation
Bluff Sandstone
Barren Measures
Banquereau Formation
Broken River Formation
Cache Creek Group
Cambridge Argillite
Canning Formation
Carnmenellis Granite
Catalina Schist
Cheshire Formation
Choiyoi Group
Baker Coal
Boston Bay Group
Botucatu Formation
Dakhla Shale
Deccan Traps
Davis Formation
Chugwater Formation
Coastal Batholith
Deer Lake Group
Denver Formation
Difunta Group
Eagle Mills Formation
Eagle Bay Formation
Emeishan Basalts
Estrada Nova Formation
Eureka Sound Group
Ekofisk Formation
Elliot Formation
Empire Formation
Famatina System
Gondwana System
Goose Egg Formation
Fort Union Formation
Haast Schist
Halfway Formation
Garn Formation
Gates Formation
Greenland Group
Hazelton Group
Hazens Notch Formation
Hector Formation
Highland Complex
Hutton Sandstone
Imperial Formation
Intertrappean Beds
Ivishak Formation
J Sandstone
Hoosac Formation
Hume Formation
Huqf Supergroup
Kirkwood Formation
Klodzko Unit
Korenevskaya Formation
Krol Formation
Jacobsville Sandstone
Kurnool System
La Quinta Formation
Ladoga Series
Lagunillas Formation
Latrobe Group
Kaimur Sandstone
Karoo Supergroup
Kunavaram Series
Lincolnshire Limestone
Lucas Formation
Little Falls Formation
Lopez de Bertodano Formation
Manning Formation
Maravillas Formation
Mardin Formation
Louann Salt
Lutzow-Holm Complex
Madrid Formation
Martin Formation
Maude Group
Middle Run Formation
Medina Formation
Meliata Unit
Mendez Formation
Monterey Formation
Monashee Complex
Muro Group
Nanaimo Group
Nansen Formation
New Red Sandstone
New York City Group
Nikolai Greenstone
North Horn Formation
Nubian Sandstone
Moty Formation
Mount Scopus Group
Nama Group
Ocoee Supergroup
Peace River Formation
Pelona Schist
Pinnacle Formation
Oil Creek Formation
Pagoda Formation
Paskapoo Formation
Porsanger Dolomite Formation
Potrerillos Formation
Pozo Formation
Puncoviscana Formation
Raton Formation
Rio Colorado Formation
Robertson Bay Group
Roca Formation
Rocknest Formation
Roraima Formation
Ross Formation
Roxbury Conglomerate
Rundle Group
Rye Complex
Sadlerochit Group
Sagavanirktok Formation
Red Mountain Formation
Riggins Group
Rincon Formation
Salta Group
San Gregorio Formation
San Jose Formation
San Juan Formation
San Lorenzo Formation
San Miguel Formation
San Andres Formation
San Diego Formation
San Felipe Formation
Sandia Formation
Santa Cruz Formation
Santa Fe Group
Santa Lucia Formation
Santa Maria Formation
Santa Maria Group
Scaglia Formation
Santa Barbara Formation
Semail Ophiolite
Severn Formation
Santa Barbara Subgroup
Santa Clara Formation
Scarborough Formation
Sheep Pass Formation
Sparagmite Group
Spearfish Formation
Siberian Traps
Skagit Gneiss
Singleton Coal Measures
Tal Formation
Stockton Formation
Table Mountain Group
Tallulah Falls Formation
Taylor Group
Troodos Ophiolite
Tor Formation
Torlesse Supergroup
Toro Formation
Tura Formation
Wapiti Formation
Tyler Formation
Underhill Formation
Valhalla Complex
White Limestone
Wilcox Formation
Wood Canyon Formation
Yellow Aster Complex
Wutai Group
Younger Granites
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