Pu  search
USEplutonium
Pu'u O'o  search
USEPuu Oo
Pu-238  search
BTisotopes
 .radioactive isotopes
 ..Pu-238
BTmetals
 .actinides
 ..plutonium
 ...Pu-238
SNThis term has multiple hierarchies.
Pu-239  search
BTisotopes
 .radioactive isotopes
 ..Pu-239
BTmetals
 .actinides
 ..plutonium
 ...Pu-239
RTPu-240/Pu-239
SNThis term has multiple hierarchies.
Pu-240  search
BTisotopes
 .radioactive isotopes
 ..Pu-240
BTmetals
 .actinides
 ..plutonium
 ...Pu-240
RTPu-240/Pu-239
SNThis term has multiple hierarchies.
Pu-240/Pu-239  search
BTisotopes
 .radioactive isotopes
 ..Pu-240/Pu-239
BTmetals
 .actinides
 ..plutonium
 ...Pu-240/Pu-239
RTisotope ratios
 Pu-239
 Pu-240
SNThis term has multiple hierarchies.
Pu-244  search
BTisotopes
 .radioactive isotopes
 ..Pu-244
BTmetals
 .actinides
 ..plutonium
 ...Pu-244
SNThis term has multiple hierarchies.
public awaren  search
public awareness  search
UFawareness, public
RTeducation
 geologic hazards
 safety
 volcanic risk
 preventive measures
 risk assessment
 geology
 popular geology
 public policy
 planning
 seismic risk
public lands  search
NTnational forests
 national monuments
 national parks
 RARE II regions
 wilderness areas
UFfederal lands
RTland management
 land use
 conservation
 government agencies
 public policy
 natural resources
 U. S. Bureau of Land Management
SNIndexed with specific type if known e.g. national parks.
public policy  search
UFnational policy
RTwaste disposal
 land management
 land use
 legislation
 conservation
 government agencies
 regulations
 policy
 decision-making
 strategic minerals
 public lands
 public awareness
SNAdded to Thesaurus in 1995.
publication lists  search
USEpublications
publications  search
UFgeologic publications
 publication lists
RTassociations
 maps
 survey organizations
 catalogs
 dictionaries
 glossaries
 lexicons
 bibliography
 guidebook
 atlas
 monographs
 book reviews
 textbooks
 directory
 manuals
 theses
SNUsed as a general term.
Pucangan Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Quaternary
 ....Pucangan Formation
RTIndonesia
 Java
SNCentral Java. Added to Thesaurus in 1989.
Pucara Group  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Pucara Group
RTJurassic
 Upper Triassic
 Peru
 Lima Peru
 Junin Peru
SNIncludes Paria Formation. W Peru. Upper Triassic and Jurassic. Indexed with ages as applicable.
Puck Bay  search
BTEurope
 .Central Europe
 ..Poland
 ...Gdansk Poland
 ....Puck Bay
SNInlet of the Gulf of Danzig on the Baltic Sea. Also search Puck.
Puebla de Guzman Spain  search
BTelva Spain
 .Puebla de Guzman Spain
SNTown in SW part of country.
Puebla Mexico  search
BTMexico
 .Puebla Mexico
NTLos Humeros
RTSierra Madre Oriental
 Mexican volcanic belt
 Popocatepetl
 Pico de Orizaba
SNState and city SE of Mexico City in SE Mexico.
Pueblo Colorado  search
BTUnited States
 .Colorado
 ..Pueblo County Colorado
 ...Pueblo Colorado
SNCity in SE central Colorado.
Pueblo County Colorado  search
BTUnited States
 .Colorado
 ..Pueblo County Colorado
NTPueblo Colorado
RTWet Mountains
SNS central Colorado.
Puente Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Miocene
 .....upper Miocene
 ......Puente Formation
RTCalifornia
SNIncludes Papel Blanco Shale, Blanco Sandstone, Cubierto Shale, Hunter Sandstone and Conglomerate, Peculiar Shale, Mahala Sandstone and Conglomerate, Sycamore Canyon Member, La Vida Member, Soquel Member, Yorba Member. S California.
Puente Hills  search
BTUnited States
 .California
 ..Los Angeles County California
 ...Puente Hills
SNS part of Los Angeles County.
Puercan  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Paleogene
 ....Paleocene
 .....lower Paleocene
 ......Puercan
SNNorth American continental stage. Above Cretaceous and below Dragonian. Added to Thesaurus in 1989.
Puerco River  search
USERio Puerco
Puerto Cabello Venezuela  search
BTSouth America
 .Venezuela
 ..Carabobo Venezuela
 ...Puerto Cabello Venezuela
SNCity W of Caracas on the Caribbean Sea in N Venezuela.
Puerto Deseado  search
BTSouth America
 .Argentina
 ..Santa Cruz Argentina
 ...Puerto Deseado
SNBay in S Argentina. As of 1993, use Puerto Deseado Argentina for the town, in Santa Cruz province.
Puerto Rico  search
BTCaribbean region
 .West Indies
 ..Antilles
 ...Greater Antilles
 ....Puerto Rico
NTAnasco Bay
 Arecibo Puerto Rico
 Cabo Rojo Puerto Rico
 Mayaguez Bay
 Ponce Puerto Rico
 San Juan Puerto Rico
RTCaribbean Mountain Range
 Central Cordillera
 San Juan Formation
 Maravillas Formation
 Robles Formation
SNBefore 1932, also search Porto Rico.
Puerto Rico Trench  search
BTAtlantic Ocean
 .North Atlantic
 ..Puerto Rico Trench
UFPuerto Rico Trough
SNNNE of Puerto Rico.
Puerto Rico Trough  search
USEPuerto Rico Trench
Puget Lowland  search
BTUnited States
 .Washington
 ..Puget Lowland
SNArea surrounding Puget Sound and the broad trough extending S.
Puget Sound  search
BTUnited States
 .Washington
 ..Puget Sound
RTJuan de Fuca Strait
 Deschutes River
SNArm of Pacific Ocean extending S from E end of Juan de Fuca Strait.
Puglia Italy  search
USEApulia Italy
Pulaski County Arkansas  search
BTUnited States
 .Arkansas
 ..Pulaski County Arkansas
SNCentral Arkansas.
Pulaski County Georgia  search
BTUnited States
 .Georgia
 ..Pulaski County Georgia
SNS central Georgia.
Pulaski County Illinois  search
BTUnited States
 .Illinois
 ..Pulaski County Illinois
SNExtreme S Illinois.
Pulaski County Indiana  search
BTIndiana
 .Pulaski County Indiana
SNNW Indiana.
Pulaski County Kentucky  search
BTUnited States
 .Kentucky
 ..Pulaski County Kentucky
SNS Kentucky.
Pulaski County Missouri  search
BTUnited States
 .Missouri
 ..Pulaski County Missouri
SNCentral Missouri.
Pulaski County Virginia  search
BTUnited States
 .Virginia
 ..Pulaski County Virginia
SNSW Virginia.
Pulaski Fault  search
RTTennessee
 Virginia
SNSW Virginia and Tennessee. Indexed with counties or region as applicable.
Pulaski thrust sheet  search
BTUnited States
 .Pulaski thrust sheet
RTAppalachians
 Virginia
 Tennessee
SNSW Virginia and NE Tennessee. Indexed with states as applicable. Added to Thesaurus in 1989.
pulaskite  search
BTigneous rocks
 .plutonic rocks
 ..syenites
 ...pulaskite
pull apart structures  search
USEboudinage
pull-apart basins  search
BTbasins
 .pull-apart basins
RTtectonics
 extension tectonics
 en echelon faults
 fault zones
 strike-slip faults
SNBasins associated with strike-slip fault zones. Added to Thesaurus in 1989.
Pulmonata  search
BTInvertebrata
 .Mollusca
 ..Gastropoda
 ...Pulmonata
NTBasommatophora
 Stylommatophora
SNSubclass.
pulsating spring  search
USEgeysers
pulsations  search
SNAs of 1993, no longer a valid term for GeoRef. Usually out-of-scope. Used with magnetosphere and magnetic field.
Pultova Ukraine  search
USEPoltava Ukraine
Pultowa Ukraine  search
USEPoltava Ukraine
Pultusk Poland  search
BTEurope
 .Central Europe
 ..Poland
 ...Pultusk Poland
SNCity in SE Ciechanow, E central Poland.
pumice  search
BTigneous rocks
 .volcanic rocks
 ..pyroclastics
 ...pumice
RTpumice deposits
 shirasu
 scoria
SNAs of 1981, use pumice deposits for pumice as a commodity.
pumice deposits  search
RTabrasives
 aggregate
 pumice
SNCommodity. See List C.
pump and treat  search
USEpump-and-treat
pump tests  search
UFpumping tests
RTwater wells
 ground water
 hydrology
 pumping
 slug tests
SNBefore 1978, also search pumping.
pump-and-treat  search
UFpump and treat
RTreclamation
 pollution
 ground water
 pollutants
 remediation
 water treatment
 water quality
 volatile organic compounds
 contaminant plumes
 nonaqueous phase liquids
SNAlso index remediation and/or water treatment.
pumpellyite  search
BTsilicates
 .orthosilicates
 ..sorosilicates
 ...pumpellyite
RTaluminosilicates
pumping  search
RTdrawdown
 economic geology
 engineering geology
 ground water
 hydrogeology
 petroleum engineering
 production
 pump tests
 suction
 water recovery
 water resources
 water use
 water wells
 well screens
SNAdded to Thesaurus in 1982.
pumping tests  search
USEpump tests
Puna  search
RTAltiplano
 Andes
 Argentina
 Atacama Desert
 Central Andes
 Chile
 Southern Andes
SNHigh Andean intermontane plateaus, especially in the S Andes. Also used in other locations; search in combination with Andes or with country as applicable. Indexed with regions and mountain ranges as applicable. Added to Thesaurus in 1995.
punch cards  search
UFpunched cards
RTdata processing
Punchbowl Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Miocene
 .....upper Miocene
 ......Punchbowl Formation
RTCalifornia
SNDescribed in Valyermo Quadrangle as consisting of two facies. S California.
punched cards  search
USEpunch cards
Puncoviscana Formation  search
RTArgentina
 Cambrian
 Lower Cambrian
 Precambrian
 upper Precambrian
SNUpper Precambrian and Lower Cambrian. NW Argentina. Indexed with ages as applicable. Added to Thesaurus in 1993.
punctuated aggradational cycles  search
RTcycles
 cyclic processes
 ecology
 paleoecology
 sedimentation
 stratigraphy
SNAdded to Thesaurus in 1989.
punctuated equilibria  search
RTbiologic evolution
 gradualism
 paleontology
 phylogeny
SNAdded to Thesaurus in 1985.
Pune India  search
USEPoona India
Pungo River  search
BTUnited States
 .North Carolina
 ..Pungo River
RTPamlico River
SNTidal estuary near the Pamlico River off Pamlico Sound.
Pungo River Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Miocene
 .....Pungo River Formation
RTVirginia
 North Carolina
SNMiddle Miocene. E North Carolina and Virginia. Added to Thesaurus in 1985.
Punjab  search
SNNo longer a valid term for GeoRef as of 1981. Use Punjab India or Punjab Pakistan as applicable. Before 1981, referred to both the state in India and the province in Pakistan.
Punjab India  search
BTAsia
 .Indian Peninsula
 ..India
 ...Punjab India
NTChandigarh India
 Spiti
RTChinji Formation
 Beas River
SNState. NW India. Before 1993, also search Punjab State.
Punjab Pakistan  search
BTAsia
 .Indian Peninsula
 ..Pakistan
 ...Punjab Pakistan
NTAttock Pakistan
 Khewra Pakistan
 Mangla Dam
 Mansehra Pakistan
 Mianwali Pakistan
 Ramnagar Pakistan
 Salt Range
RTChinji Formation
 Potwar Plateau
SNProvince. E central Pakistan. Before 1993, also search Punjab Province.
Puno Peru  search
BTSouth America
 .Peru
 ..Puno Peru
RTLake Titicaca
SNDepartment in SE Peru.
Punta Mosquito Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Paleogene
 ....Eocene
 .....Punta Mosquito Formation
RTVenezuela
Pupillidae  search
BTInvertebrata
 .Mollusca
 ..Gastropoda
 ...Pupillidae
Purbeckian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Lower Cretaceous
 .....Purbeckian
SNEurope.
Purcell Mountains  search
BTNorth America
 .Purcell Mountains
RTIdaho
 Montana
 British Columbia
 Boundary County Idaho
 Lincoln County Montana
SNMountain range in SE British Columbia; Boundary County, N Idaho and Lincoln County, NW Montana. Indexed with British Columbia and/or states and counties as applicable. Added to Thesaurus in 1989.
Purcell System  search
BTChronostratigraphic Units
 .Precambrian
 ..Purcell System
RTAlberta
 Idaho
 Montana
 British Columbia
purchases  search
RTeconomics
SNUsually out-of-scope for GeoRef. Added to Thesaurus in 1981.
pure coal  search
USEvitrain
purification  search
RTbeneficiation
 dechlorination
 decontamination
 drinking water
 ground water
 hydrology
 impurities
 polluted water
 pollution
 potability
 water
 water quality
 water resources
 water treatment
purines  search
BTorganic compounds
 .proteins
 ..purines
Purisima Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Purisima Formation
RTPliocene
 Miocene
 California
 San Gregorio Formation
SNMiocene-Pliocene. W California. Indexed with age as applicable. Added to Thesaurus in 1989.
purple copper ore  search
USEbornite
Purulia India  search
BTAsia
 .Indian Peninsula
 ..India
 ...West Bengal India
 ....Purulia India
SNCity in W West Bengal, E India.
push wave  search
USEP-waves
push-pull wave  search
USEP-waves
Pushmataha County Oklahoma  search
BTUnited States
 .Oklahoma
 ..Pushmataha County Oklahoma
Putnam County Florida  search
BTUnited States
 .Florida
 ..Putnam County Florida
SNN Florida.
Putnam County Georgia  search
BTUnited States
 .Georgia
 ..Putnam County Georgia
SNCentral Georgia.
Putnam County Illinois  search
BTUnited States
 .Illinois
 ..Putnam County Illinois
SNN central Illinois.
Putnam County Indiana  search
BTIndiana
 .Putnam County Indiana
SNW central Indiana.
Putnam County Missouri  search
BTUnited States
 .Missouri
 ..Putnam County Missouri
SNN Missouri.
Putnam County New York  search
BTUnited States
 .New York
 ..Putnam County New York
SNSE New York.
Putnam County Ohio  search
BTUnited States
 .Ohio
 ..Putnam County Ohio
SNNW Ohio.
Putnam County Tennessee  search
BTUnited States
 .Tennessee
 ..Putnam County Tennessee
SNCentral Tennessee.
Putnam County West Virginia  search
BTUnited States
 .West Virginia
 ..Putnam County West Virginia
SNW West Virginia.
Putrid Sea  search
USESivash
Puu Oo  search
BTUnited States
 .Hawaii
 ..Hawaii County Hawaii
 ...Hawaii Island
 ....Puu Oo
UFPu'u O'o
RTKilauea
 volcanoes
 East Rift Zone
SNExtensively studied eruptive activity site on East Rift Zone of Kilauea volcano. Site is just inside Hawaii Volcanoes National Park. Activity began in 1983 and continued for several years. This term has multiple hierarchies. Added to Thesaurus in 1993.
Puy-de-Dome France  search
BTEurope
 .Western Europe
 ..France
 ...Puy-de-Dome France
NTChaine des Puys
 Clermont-Ferrand France
 Mont-Dore France
RTLimagne
SNDepartment in S central France.