Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Fe  | |
|---|---|
| USE | iron |
| Fe-55 | |
|---|---|
| BT | isotopes |
| .radioactive isotopes | |
| ..Fe-55 | |
| BT | metals |
| .iron | |
| ..Fe-55 | |
| SN | This term has multiple hierarchies. |
| Fe-57 | |
|---|---|
| BT | isotopes |
| .stable isotopes | |
| ..Fe-57 | |
| BT | metals |
| .iron | |
| ..Fe-57 | |
| SN | This term has multiple hierarchies. |
| Fe-59 | |
|---|---|
| BT | isotopes |
| .radioactive isotopes | |
| ..Fe-59 | |
| BT | metals |
| .iron | |
| ..Fe-59 | |
| SN | This term has multiple hierarchies. |
| Fe2+ | |
|---|---|
| USE | ferrous iron |
| Fe3+ | |
|---|---|
| USE | ferric iron |
| feasibility | |
|---|---|
| USE | feasibility studies |
| Feather River | |
|---|---|
| BT | United States |
| .California | |
| ..Feather River | |
| RT | Mohawk Valley |
| Butte County California | |
| Oroville Dam | |
| Sutter County California | |
| Yuba County California | |
| SN | N central California. Indexed with counties as applicable. Added to Thesaurus in 1981. |
| feathers | |
|---|---|
| RT | Aves |
| biostratigraphy | |
| SN | Added to Thesaurus in 1989. |
| features, bottom | |
|---|---|
| USE | bottom features |
| features, buried | |
|---|---|
| USE | buried features |
| features, cryptoexplosion | |
|---|---|
| USE | cryptoexplosion features |
| features, eolian | |
|---|---|
| USE | eolian features |
| features, erosion | |
|---|---|
| USE | erosion features |
| features, fluvial | |
|---|---|
| USE | fluvial features |
| features, frost | |
|---|---|
| USE | frost features |
| features, glacial | |
|---|---|
| USE | glacial features |
| features, impact | |
|---|---|
| USE | impact features |
| features, lacustrine | |
|---|---|
| USE | lacustrine features |
| features, periglacial | |
|---|---|
| USE | periglacial features |
| features, shore | |
|---|---|
| USE | shore features |
| features, solution | |
|---|---|
| USE | solution features |
| features, surface | |
|---|---|
| USE | surface features |
| features, volcanic | |
|---|---|
| USE | volcanic features |
| fecal coliform bacteria | |
|---|---|
| USE | coliform bacteria |
| fecal pellets | |
|---|---|
| UF | faecal pellets |
| RT | biogenic structures |
| marine sediments | |
| coprolites | |
| SN | Added to Thesaurus in 1993. |
| Federal Capital Territory | |
|---|---|
| SN | Not a valid term for GeoRef. See Australian Capital Territory Australia if applicable. |
| Federal District | |
|---|---|
| SN | No longer a valid term for GeoRef. As of 1993, term may be used with country where it is larger than the city it contains. See Buenos Aires Argentina, Federal District Mexico, Federal District Venezuela, Rio de Janeiro City Brazil, or Kinshasa Congo Democ |
| Federal District Argentina | |
|---|---|
| USE | Buenos Aires City Argentina |
| Federal District Mexico | |
|---|---|
| BT | Mexico |
| .Mexico state | |
| ..Federal District Mexico | |
| NT | Mexico City Mexico |
| UF | Mexico D.F. |
| RT | Valley of Mexico |
| SN | Central Mexico. Surrounded on west, north, and east by Mexico state, but independent of it. Includes Mexico City Mexico. Before 1993, also search Distrito Federal AND Mexico. |
| Federal District Venezuela | |
|---|---|
| BT | South America |
| .Venezuela | |
| ..Federal District Venezuela | |
| NT | Caracas Venezuela |
| RT | Caracas Group |
| SN | N central Venezuela. Region not within other states containing the capital city of Caracas. Before 1993, also search Distrito Federal AND Venezuela. |
| federal lands | |
|---|---|
| USE | public lands |
| Federal Republic of Germany | |
|---|---|
| SN | Not a valid term for GeoRef. As of 1993, see Germany and also Mecklenburg-Western Pomerania Germany, Brandenburg Germany, Saxony-Anhalt Germany, Thuringia Germany, and Saxony Germany. |
| Federal Republic of Yugoslavia | |
|---|---|
| USE | Yugoslavia |
| Federated Shan States | |
|---|---|
| USE | Shan State Burma |
| Federated States of Micronesia | |
|---|---|
| USE | Micronesia |
| Fedorov stage | |
|---|---|
| USE | universal stage |
| feeding | |
|---|---|
| RT | carnivorous taxa |
| diet | |
| herbivorous taxa | |
| nutrition | |
| paleontology | |
| predation | |
| trophic analysis | |
| feeding ground | |
|---|---|
| USE | drainage basins |
| feet | |
|---|---|
| RT | anatomy |
| bones | |
| extremities | |
| morphology | |
| skeletons | |
| feldspar | |
|---|---|
| SN | As of 1981, no longer a valid term for GeoRef. See feldspar group. Use feldspar deposits for feldspar as a commodity. |
| feldspar deposits | |
|---|---|
| RT | feldspar group |
| feldspathization | |
| SN | Commodity. See List C. |
| feldspar group | |
|---|---|
| BT | silicates |
| .framework silicates | |
| ..feldspar group | |
| NT | alkali feldspar |
| barium feldspar | |
| plagioclase | |
| RT | argillization |
| feldspar deposits | |
| SN | Before 1981, maskelynite was included as a narrower term. |
| feldspathization | |
|---|---|
| BT | metasomatism |
| .feldspathization | |
| RT | metamorphism |
| granitization | |
| feldspar deposits | |
| feldspathoid rocks | |
|---|---|
| BT | igneous rocks |
| .feldspathoid rocks | |
| RT | alkalic composition |
| felsic composition | |
| nepheline group | |
| sodalite group | |
| Felidae | |
|---|---|
| BT | Chordata |
| .Vertebrata | |
| ..Tetrapoda | |
| ...Mammalia | |
| ....Theria | |
| .....Eutheria | |
| ......Carnivora | |
| .......Fissipeda | |
| ........Felidae | |
| RT | Smilodon |
| SN | Family. |
| felsic composition | |
|---|---|
| RT | acidic composition |
| composition | |
| feldspathoid rocks | |
| felsite | |
| leucite | |
| nepheline group | |
| sodalite group | |
| SN | Felsic stands for FELdspars, FELdspathoids, and quartz (Si). It is also used for rocks composed mainly of FELdspars and quartz (Si). This term is a complement to mafic and is occasionally confused with acidic composition. Before 1995, also search felsic o |
| felsite | |
|---|---|
| BT | igneous rocks |
| .plutonic rocks | |
| ..granites | |
| ...felsite | |
| RT | felsic composition |
| Feltville Formation | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Jurassic | |
| ....Lower Jurassic | |
| .....Feltville Formation | |
| RT | New Jersey |
| Newark Supergroup | |
| SN | In Newark Group. NE New Jersey. Added to Thesaurus in 1989. |
| Fenestellidae | |
|---|---|
| BT | Invertebrata |
| .Bryozoa | |
| ..Cryptostomata | |
| ...Fenestellidae | |
| SN | Family. |
| fenite | |
|---|---|
| BT | metamorphic rocks |
| .metasomatic rocks | |
| ..fenite | |
| RT | metasomatism |
| fenitization | |
| fenitization | |
|---|---|
| BT | metasomatism |
| .fenitization | |
| RT | alteration |
| fenite | |
| Fennoscandia | |
|---|---|
| BT | Europe |
| .Fennoscandia | |
| NT | Russian Fennoscandia |
| RT | Russian Federation |
| Finland | |
| Sweden | |
| Norway | |
| Denmark | |
| Baltic Shield | |
| SN | Geological usage for that part of N Europe consisting of Denmark, Finland and adjacent part of the Russian Federation, Norway, and Sweden. Indexed with countries as applicable. |
| Fennoscandian Shield | |
|---|---|
| USE | Baltic Shield |
| fens | |
|---|---|
| BT | mires |
| .fens | |
| RT | geomorphology |
| fluvial features | |
| shore features | |
| lacustrine features | |
| bogs | |
| wetlands | |
| karst hydrology | |
| SN | Waterlogged spongy ground containing alkaline decaying vegetation, characterized by reeds, that may develop into peat. Use for landforms. See depositional environment or wetlands for paleoecology or ecology studies. Before 1998, also search bogs or peat. |
| fensters | |
|---|---|
| USE | windows |
| Fenton Hill | |
|---|---|
| BT | United States |
| .New Mexico | |
| ..Sandoval County New Mexico | |
| ...Fenton Hill | |
| RT | Valles Caldera |
| Los Alamos National Laboratory | |
| Nacimiento Mountains | |
| Valle Grande Mountains | |
| SN | Los Alamos National Laboratory's site for hot-dry-rock geothermal energy experiments. Adjacent to Valles Caldera and Nacimiento Mountains in NW central New Mexico. Added to Thesaurus in 1981. |
| Fentress County Tennessee | |
|---|---|
| BT | United States |
| .Tennessee | |
| ..Fentress County Tennessee | |
| ferberite | |
|---|---|
| BT | tungstates |
| .ferberite | |
| Fergana | |
|---|---|
| SN | Not a valid term for GeoRef. Use Fergana Basin. |
| Fergana Basin | |
|---|---|
| BT | Commonwealth of Independent States |
| .Fergana Basin | |
| BT | Asia |
| .Central Asia | |
| ..Fergana Basin | |
| UF | Fergana Valley |
| RT | Tajikistan |
| Kyrgyzstan | |
| Uzbekistan | |
| SN | Mountain enclosed steppe and desert region. Also search Fergana. This term has multiple hierarchies. Indexed with former Soviet republics as applicable. |
| Fergana Valley | |
|---|---|
| USE | Fergana Basin |
| Fergus County Montana | |
|---|---|
| BT | United States |
| .Montana | |
| ..Fergus County Montana | |
| RT | Big Snowy Mountains |
| SN | Central Montana. |
| fergusonite | |
|---|---|
| BT | oxides |
| .niobates | |
| ..niobotantalates | |
| ...fergusonite | |
| SN | This term has multiple hierarchies. |
| Fermanagh Northern Ireland | |
|---|---|
| BT | Europe |
| .Western Europe | |
| ..United Kingdom | |
| ...Northern Ireland | |
| ....Fermanagh Northern Ireland | |
| SN | Traditional county in SW Northern Ireland. Includes the smaller administrative region of the same name adopted after 1973. |
| fermium | |
|---|---|
| BT | metals |
| .actinides | |
| ..fermium | |
| UF | Fm |
| SN | Chemical element. |
| Fernando Po | |
|---|---|
| BT | Africa |
| .Central Africa | |
| ..Equatorial Guinea | |
| ...Fernando Po | |
| UF | Fernando Poo |
| SN | Province in Bight of Biafra. Also an island. |
| Fernando Poo | |
|---|---|
| USE | Fernando Po |
| Fernie Basin | |
|---|---|
| BT | Canada |
| .Western Canada | |
| ..British Columbia | |
| ...Fernie Basin | |
| SN | SE British Columbia. Added to Thesaurus in 1989. |
| Fernie Formation | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Jurassic | |
| ....Fernie Formation | |
| RT | Alberta |
| Montana | |
| British Columbia | |
| Nordegg Member | |
| SN | Rocky Mountains of SW Alberta, SE British Columbia and NW Montana. Added to Thesaurus in 1989. |
| Fernvale Formation | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Ordovician | |
| ....Upper Ordovician | |
| .....Fernvale Formation | |
| RT | Missouri |
| Oklahoma | |
| Illinois | |
| Alabama | |
| Tennessee | |
| Arkansas | |
| Richmond Group | |
| SN | In Richmond Group and Patterson Ranch Group. N Arkansas, SW Illinois, SE Missouri, and W Tennessee, NW Alabama, central E and NE Oklahoma. |
| Ferralites | |
|---|---|
| BT | soils |
| .Ferralites | |
| RT | soil group |
| Ferralsols | |
|---|---|
| BT | soils |
| .Ferralsols | |
| Ferrar Group | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Jurassic | |
| ....Ferrar Group | |
| RT | Antarctica |
| Victoria Land | |
| SN | In Victoria Land W of Ross Sea on Pacific Ocean side. |
| ferric iron | |
|---|---|
| BT | metals |
| .iron | |
| ..ferric iron | |
| UF | Fe3+ |
| SN | Used for iron with a valence of 3. Before 1978, search iron AND ferric. |
| ferricrete | |
|---|---|
| BT | sedimentary rocks |
| .chemically precipitated rocks | |
| ..ferricrete | |
| RT | conglomerate |
| duricrust | |
| ferrierite | |
|---|---|
| BT | silicates |
| .framework silicates | |
| ..zeolite group | |
| ...ferrierite | |
| ferrifayalite | |
|---|---|
| USE | laihunite |
| ferrihydrite | |
|---|---|
| BT | oxides |
| .ferrihydrite | |
| RT | iron hydroxides |
| ferrimolybdite | |
|---|---|
| BT | molybdates |
| .ferrimolybdite | |
| ferroan dolomite | |
|---|---|
| USE | ankerite |
| ferrocarpholite | |
|---|---|
| BT | silicates |
| .chain silicates | |
| ..ferrocarpholite | |
| RT | carpholite |
| ferrodiorite | |
|---|---|
| BT | igneous rocks |
| .plutonic rocks | |
| ..diorites | |
| ...ferrodiorite | |
| UF | ferrogabbro |
| ferrogabbro | |
|---|---|
| USE | ferrodiorite |
| ferrohastingsite | |
|---|---|
| BT | silicates |
| .chain silicates | |
| ..amphibole group | |
| ...clinoamphibole | |
| ....ferrohastingsite | |
| RT | hastingsite |
| ferromanganese | |
|---|---|
| SN | A valid term through 1977. |
| ferromanganese composition | |
|---|---|
| RT | composition |
| iron | |
| manganese | |
| manganese composition | |
| nodules | |
| SN | Before 1978, also search ferromanganese. |
| Ferron Sandstone Member | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Cretaceous | |
| ....Upper Cretaceous | |
| .....Ferron Sandstone Member | |
| RT | Utah |
| Mancos Shale | |
| SN | Of Mancos Shale. Central E Utah. |
| ferropseudobrookite | |
|---|---|
| BT | oxides |
| .ferropseudobrookite | |
| RT | pseudobrookite |
| ferrosilicon | |
|---|---|
| BT | alloys |
| .silicides | |
| ..ferrosilicon | |
| RT | iron |
| silicon | |
| ferrosilite | |
|---|---|
| BT | silicates |
| .chain silicates | |
| ..ferrosilite | |
| UF | eulite |
| RT | hypersthene |
| eulysite | |
| ferrospinel | |
|---|---|
| USE | hercynite |
| ferrous iron | |
|---|---|
| BT | metals |
| .iron | |
| ..ferrous iron | |
| UF | Fe2+ |
| SN | Used for the bivalent iron. Before 1978, search iron AND ferrous. |
| ferruginous composition | |
|---|---|
| RT | banded iron formations |
| composition | |
| iron | |
| iron formations | |
| iron-rich composition | |
| red beds | |
| sedimentary rocks | |
| sediments | |
| SN | Before 1978, also search ferruginous. As of 1981, use only for sedimentary formations. |
| ferruginous quartzite | |
|---|---|
| BT | metamorphic rocks |
| .quartzites | |
| ..ferruginous quartzite | |
| RT | orthoquartzite |
| Ferruginous soils | |
|---|---|
| BT | soils |
| .Ferruginous soils | |
| RT | soil group |
| Ferry County Washington | |
|---|---|
| BT | United States |
| .Washington | |
| ..Ferry County Washington | |
| SN | On Canadian border in NE Washington. |
| fertilization | |
|---|---|
| RT | agriculture |
| fertilizers | |
| nutrients | |
| soil treatment | |
| soils | |
| fertilizers | |
|---|---|
| RT | agriculture |
| agrochemicals | |
| fertilization | |
| nitrogen | |
| nutrients | |
| phosphorus | |
| soil management | |
| soils | |
| yields | |
| Ferto to | |
|---|---|
| USE | Lake Neusiedler |
| Fezzan | |
|---|---|
| BT | Africa |
| .North Africa | |
| ..Libya | |
| ...Fezzan | |
| SN | Desert region in SW Libya. |