grMz
California
Pz
permian
mv
mississippian
water
Qrv
quaternary
Q
um
Qv?
Tba
Washoe_no
Basalt
tertiary
Tcr
Canon Rhyolite
Ts3
Elko
Sedimentary and volcanic rocks
Qsl
Undiff. Quat. sed., lake, alluv., talus, playa dep
TRs
Marine sedimentary rocks
trassic
Qls
Landsl. dep.; basalt, tuff, diatomite, tuff. sed.
Tts
Ignimbrite, tuff, and sedimentary rocks
Tmb
basalt and andesite
Tb
basalt flows
PMl
Limestone, shale, chert, orthoquartzite, & quartz
Qa
Alluvium
High Rock sequence
Qv
Trd
Humboldt
Rhyolitic and dacitic volcanic rocks
Tjr
Jarbidge rhyolite
Mesa basalt of Merriam (1910)
Ttc
Thousand Creek beds of Merriam (1910)
Qya
Younger alluvium
Tbi
Big island formation
P
Basaltic and andesitic volcanic rocks
Ti
TKg
Granodiorite
TRPu
Volcanic and sedimentary rocks, undivided
Qoa
Older alluvium
Tc
Conglomerate
Tt1
Phenorhyolitic to phenodacitic ignimbrite
Kgr
Granite
cambrian
Landslide deposits and colluvium
Tw
Welded tuff, tuffaceous sedimentary rocks, vitric
QTa
Tr1
Rhyolitic to dacitic flows and domes
Tb2
Basalt, basaltic tuff, & tuff breccia
Mbn
Banner & Nelson formations
PPvd
Van Duzer limestone
Pph
Phosphoria formation
Ta3
Pyroxene & hornblende phenoandesite & phenodacite
DOs
Mdst.,Sh.,chert,Slts.,Gray Qzt.
devonian
Tbc
basaltic cinder, tuff, and lava cones
PPPhr
Havallah & reservation hill formations
Cc
Carbonate rocks & minor quartzite
cretaceous
Tg2
Gravel
Tr3
Phenorhyolitic & phenodacitic flows & domes
Ta1
Andesitic to latitic flows and pyroclastic rocks
Tvp
Tvv
Virgin Valley beds of Merriam (1907)
Mc
Chainman shale
SO
silurian
Tt3
Pyroxene phenodacite ignimbrite
Ta2
Phenoandesitic and phenolatitic flows
OCs
Shale, phyllite, & limestone
ordovician
PPMdc
Diamond peak & Chainman formations, undivided
Qg
Glacial morains 7 rock glasiers
Tg3
JTRu
Phyllite, slate, and fine-grained quartzite
jurassic
Jd
Diorite
Gravel deposits
MDg
Grossman formation
m
Intrusive rocks
PPPs
Unnamed sandstone, chert, and volcanic rock fmatn
Tt2
PPPcs
Carlin sequence
Tu
Ttsl
Tuff, sedimentary rocks, and lava
TRgv
Grass Valley formation
PPMdp
Diamond peak formation
Ph
Happy Creek volcanic series
PPMs
Schoonover formation
Ppcg
Grandeur formation
PPq
Quilici formation
WBDY
Water body
Ts1
Sedimentary rocks
Ts2
Tuffaceous & clastic sedimentary rocks
Raspberry fmatn: Santa Rosa: formations of Compton
Dm
Graphitic marble
Ts
Pershing
Oem
Metaquartzite
Pp
Pequop formation
QTb
PPPl
Limestone and dolomite
Qlg
Lake deposits
Ppc
Park City group
Basalt and andesite
Ch
Harmony Frm; qtz, sndst, conglom, argill, limest
Qd
Dune sand
Ku
PPPh
Havallah formation
Ov
Valmy Frm; argill, chert, grnst, qtzite
Kgd
Strathearn formation
DSrm
Roberts mountains formation
Pbl
Unnamed bioclastic limestone
Oc
Comus formation
Tpr
Porphyritic phenorhyolitic & phenodacitic flows &
Dl
Limestone
KJi
Tv
PPe
Ely limestone
Eureka
Ts5
Lander
Tuffaceous sedimentary rocks
Valley alluvium and stream deposits
Tsw
South Willow Form.; bas., dacite, agglom., breccia
Vinini Formation
Tgr
Alaskitic granite
PPPa
Edna Mountain formation and Antler Peak limestone
Sr
Roberts Mountains Formation
Harmony formation
Mtp
Tripon pass limestone
PPPu
Antler Peak, Hwy limestone, Battle fmatn, undiv.
Dd
Sevy, Simonson, & Nevada formations
Tir
Intrusive rhyolite
Tr
Rhyolite flow domes in Sheep Creek Range
Dgd?
Guilmette & Devild Gate formations
Tr2
Phenorhyolitic & phenodacitic tuff, flows, & domes
Tl
Latitic rocks
SOd
Predominantly dolomitic rocks
Oe
Eureka quartzite
TKpl
Pansy Lee conglomerate
DCm
Calcite marble & dolomite marble
KJf
Com
Osgood Mountain quartzite
Cpm
Prospect mountain quartzite
OCm
Calcite marble
Ps
Schist
Pem
Edna mountain formation
Qp
Pluvial lake deposits
Tb3
Pgp
Gerster & phosphoria formations
QPc
SOh
Hanson creek formation
Tgd
Granodiorite, quartz monzonite
Tbx
Breccia
CPq
Foliated metaquartzite
QTg
Pre-Lake Lahontan dep., terrace, alluv., gravels
Mu?
Sedimentary rocks, undivided
Grass Valley Frm; mudst, sandst, argill, qtzite
Valmy Formation
PlPh
Havallah Frm; qtzite, chert, argill, lmest, sndst
Ds
Slaven Chert
Rhyolite
Mi
Inskip Frm; sndst, conglom, qtzite, sltst, schist
PlPp
Pumpernickel Frm; grnst, chert, argillite
Dw
Woodruff formation
Pm
Metavolcanics; meta-andes., meta-dacite, brecc.
Antler sequence
Harmony Formation
Qal
Washoe_so
Stream deposits
TRnp
Natchez Pass Form.; limest., dolomite mafic
PPp
Pumpernickel Formation
Tg
Granitic intrusive rocks
Dgd
Guilmette & Devils Gate formations
Tvu
Volcanic rocks, undivided
MDjp
Joana limestone & pilot shale, undivided
JTRa
Auld Lang Syne Group; slate, phyll., hornf., qtzit
Pablo Formation
QTsu
Sedimentary deposits, undivided
JTRs
Nonmarine sedimentary rocks
Kgrc
Granodiorite of Rocky Canyon
Tra
Rhyolite and andesite
Rhyolite, dacite, and diorite
TRro
Rochester Rhyolite; rhyolite welded tuff
gb
Jgr
Op
Pogonip group
PPmc
Mitchell creek formation
Phm
Sandstone & siltstone of Horse mountain
Pph?
Oa
Aura formation
Jd?
TRw
Winnemucca formation
sch
Tls
Landslide deposits
Ms
Sedimentary clastic & limy rocks
PPPhp
Havallah (?) and Pumpernickel (?) fmatns, undiv.
Valmy formation
DOm
Dolomite marble
Kkl
King Lear formation
Vesicular olivine basalt
QThs
Hot-spring travertine and sinter
Olivine basalt
Deu
Basaltic andesite
Cp
Preble formation
Oh
Hanson Creek Formation
Undivided limy rocks
Hamburg Dolomite
Jgd
TR
PTRm
Metasedimentary and metavolcanic rocks
ir
TRdg
Dun Glen Frm; limestone, dolomite, sandst, argill
Osr
Sonoma Range formation
DSwu
PPcd
Carbonate & detrital rocks
TRm
Raspberry fmatn in the Santa Rosa Range: Mullinix
JTRl
Dt
Platy siltstone, limestone, & shale
D
Ts1?
TRa
Raspberry fmatn in the Santa Rosa Range: Andorno
KJfs
Pul
Unnamed limestone formation
TRqr
Quinn River formation
TRPc
Marine conglomerate
DOsl
C
TRqm
Quartzite and mudstone
Pem?
TRPs
DOd
Dolomitic rocks
Tgr?
PlPhp
Havallah, Pumpernickel Frm in cent. East Range
Se
Elder Sandstone
KJv
Volcanic rocks
msr
Nightingale Sequence
Intrusive rocks, undifferentiated plutonic rocks
PPPb
Brock Canyon Formation
Mvr
Unnamed volcanic rocks
Unnamed chert
ls
Jf
Frenchie creek rhyolite
Mw
Webb formation
Mzgn
Gneiss
Qtl
Talus and landslide deposits
QTls
Tuff and sedimentary rocks
TRk
Koipato Group; volcanic, sedimentary rocks
Kgdf
Intrusive rocks; foliated granodiorite
Pumpernickel formation
TRpml
Prida Form.; shale, siltst., limest., sandst., dol
TRp
Prida Frm; lmest, dolom, chert, shale, sltst
Havallah Formation
Caetano Tuff
Tsv
Pyramid Sequence
TRrp
Rhyolite porphyry
Ec
PPPfc
Unnamed fine clastic sedimentary rocks
Pmc
McCoy creek group
J
Mzv
Ppc?
DPm
Metamorphic rocks
TRr
Raspberry formation in the Santa Rosa Range
Pzv
Older alluvial deposits
Qf
Alluvial fan deposits
Dwu
Playa deposits
Qs
PPMpd
Eureka Quartzite
TR-Mu
Koipato, Leach fmatn; Tallman fanglomerate, undiv.
Natchez Pass formation
Dun Glen formation
Pogonip Group
grPz
Metasedimentary rocks; marble, slate
TRra
Raspberry Frm.; mudst., sandst., limest.
TRwi
Winnemucca Frm; Sandst, calstics, limest, dolomite
TRca
Cane Sp., Augusta Mtn. Frm.; limest., dolom., shal
QTs
QTvu
Ta
Andesite
Basalt and olivine basalt lava flows
Tcg
Sedimentary rocks; conglomerate
Kgr?
Tad1
Andesite or dacite flow and shallow intrusive rock
Tov
White Pine
Older volcanic rocks
Dg
Guilmette Formation; Metamorphic rocks
Ol
Limestone and subordinate shale
Simonson/Sevy Dolomites; Metamorphic Rocks
PIP
Riepe Spring Limest of Steele (1960), Ely Limest
Lower Part; Pogonip Group, Eureka Qtzites
Churchill
Augusta Mountain Formation
Ovi
SOu
Upper part; Dolomites
MD
Chainman Shale, Joana Limestone, Pilot Shale
Tth
Tuff of Hall Creek
Tec
Edwards Creek Tuff
Tbm
Bates Mountain Tuff
Cq
Quartzite and subordinate shale
Andesite to dacite flows, flow breccias, and hypab
Tjr?
SOwu
Preble Frm; phyllite, slate, limest
Stream dep., talus, slope wash, alluv., eolian dep
Swu
Ql
Lake dep., clay, silt, sand, gravel, calc. tufa
Tip
TK
Tts?
Kap
Aplite
Ts4
Tuffaceous sedimentary rock
Intrusive rocks, foliated granodiorite
fd
Dike rocks; felsic dike
Tad2
Andesite or dacite flows
TRnpv
Natchez Pass Form.; limestone, clastic rocks
TRt
Tobin Frm.; sandst., mudst., limest., greenst.
Tt1?
Ova
TRgvo
Grass Valley, Osobb Frm; argillite, sandstone
DSlm
Lone mountain dolomite
Sl
Lone Mountain Dolomite
Tys
Younger sedimentary and volcanic rocks
Jgb
Gabbro; incl. extrusive phase
TRdv
Dixie Valley Frm.; conglom., shale, siltst., dolom
Mu
dd
Dike rocks; diabase dike
Park City Group; Kaibab/Gerster limst, Plympton Fr
KJfm
Qrvp
Pre-Lake Lahontan deposits
TRpu
Prida Form.; limest., dolomite, chert
Kg
Granitic rocks
TRl
Limerick Greenstone; andes., brecc., tuffs
Olivene basalt
Ccc
Crane Canyon sequence of Means
Klg
Leucogranite
Qvu
bx
DSd
Dolomitic limestone & dolomite
Calcareous and siliceous sinter
md
Metadiabase
Sinter deposits
Ma
Argillite of Lee canyon
TRlg
Kn
Newark Canyon Formation
Kl
Auld Lang Syne Group; shale, siltstone
Tfcm
Fish Creek Mountain Tuff
Twt
Undifferentiated welded ash-flow tuffs
andesite flows
undivided shale, sand, and siltstone
Ttm
Tuff of McCoy mine
extrusive rhyolite units
Devils Gate Limestone
Peavine Sequence, metavolcanic rocks
Par
Arcturus Formation and Rib Hill Sandstone
Younger sedimentary rocks
Md
Diamond Peak Frm; White Pine Range and west
Intrusives; monzonite, quartz monzonite
Ji
Intrusives (eastern group); qtz monzon to granodio
Th
LynDouCarn
Hartford Hill Rhyolite Tuff
Srm
Nye_North
Roberts Mountains Formation; limestone, dolomite
JTRv
Metavolcanic rocks
Tvf
Mineral
Felsic volcanics; rhyolite, quartz latite
Ohc
Alluvium, Colluvium, Talus
Tsc
Stone Cabin Formation
Tvm
Middle vol sequence; ash-flow tuffs, breccia, lava
TRe
Excelsior Formation; qtzite, siltite, chert, lmst
Qpl
Alluvial dep.; clay, saline playa dep.
Tot
Older ash-flow tuffs
fine sand, silt, and clay of river flood plains
Kd
Dioritic rocks
Tpb
Silicic ash-flow tuffs
Granitics; quartz, granodiorite, albite granite
Welded tuff
Tst
Pliocene sedimentary rocks
gr
Qfp
Flood-plain deposits
TRpc
Panther Canyon Formation
Migmatite
Knc
Newark canyon formation
Pumpernickel Frm; grnst., chert, argillite
Cs
Shwin Formation
Koipato Formation
Jg
IP
Ely Limestone of Nolan and others (1956)
Jb
Boyer Ranch Frm.; conglom., limest., sandst.
Tos
Older sedimentary rocks
Cm
Middle Part; limestone, shale
Pc
Carbon Ridge Formation
pennsylvanian
TRf
Favret Frm.; limestone, shale
Tyb
Younger basalt and andesite
Ja
Quartz arenite
Gabbroic rocks
Qog
Older gravels
JTRmv
Jl
Limestone and marble
Tj
Jasperoid breccia
Dn
Nevada Formation
Pr
Rib Hill Sandstone
Ash-flow tuff
Cu
Upper part; shale, limestone
Tk
Kate Peak formation, flows or flow breccia
Hartford Hill Rhyolite
TRcs
Cane Spring Formation
TRo
Osobb Formation
Tbio
Biotite-bearing quartz-latite ash-flow tuff
Tf
Fish Creek Mountains Tuff
Osobb Frm; sandst, mudst, carbonate rock
Td
Dacite to andesite lava flows and intrusive rock
TRwe
Weaver Rhyolite; tuff, sandst., siltst., conglom.
Trs
Auld Lang Syne Group; limestone
Jsl
Calcareous siltstone and limestone
Twt3
Ash-flow tuffs
Kb
Thrust breccia
Trl
lower rhyolite
Tki
Kate Peak formation, locally differentiated plugs
Pg
Garden Valley Formation
Qba
Basalt and andesite flows
ms
Peavine Sequence, metasedimentary rocks
Tyt
Younger ash-flow tuffs
Alta Formation
QTr
Protrusive rhyolite dome
MDp
Pilot Shale
Tab
Basalt, basaltic andesite
Gravels
PPPcs?
TJg
TRsu
upper subunit
Rhyolite intrusive rocks
Cl
Lower part; quartzite, shale
Diamond Range; Unit G of Larson and Riva (1963)
TRsi
intermediate subunit
Pa
Arcturus Formation
Havallah and Pumpernickel Formations
Tec?
Lower Triassic sedimentary rocks
Tn
New Pass Tuff
Tob
basalt and andesite.  In Stillwater Range
Tor
rhyolite to rhyodacite welded tuffs
Tru
upper rhyolite
Andesite to dacite extrusive and intrusive rocks
Twt6
Crystal-poor rhyolite ash-flow tuff
Lower part; qtzite, shale; Metamorphic rocks
Qa?
QTad
Andesite and dacite flows
Ely Limestone
Ou
Ds?
Kqny
Quartz monzonite of New York Canyon
Pediment gravels
JTRls
JTRph
Hornfels, phyllite, and schist
Favret Formation
principally flows
Jv
Mafic volcanic rocks
M
undivided volcanic rocks, mostly basalt and andesi
TRls
Limestone, conglomerate, and shale in Toiyabe Rang
Tai
intrusive bodies
pC
McCoy Creek Group; Metamorphic rocks
Twtu
Undifferentiated ash-flow tuffs
Pzc
Chert and clastic and volcanic rocks
Dacitic & qtz latitics; biotite-hornblende porph
Chert
Tnr
Needles Range Formation
undivided, nonporphyritic quartz monzonite
Twb
Ash-flow tuffs; rhyolitic to quartz latitic
Kpg
porphyritic quartz monzonite
Tmpy
Young tuffs of Moores Station area
Metasedimentary rocks
Plutonic rocks; granitic rocks
Andesitic to basaltic rocks, incl Mizpah trachyte
Silicic vol rocks; rhyolitic welded ash-flow tuffs
Oe?
Tad
Dacitic to Basaltic rocks; intermediate lavas
Kdi
Diorite and related rocks
Ppd
Pablo(?) and Diablo(?) Formations
Tes
Exotic slide blocks
mainly alluvial fan gravel
TKi
Intrusive rocks (eastern group)
Tvm?
Tsp
Sheep Pass Formation
Pablo Formation; andesite, breccia, chert
Toiyabe qrtz latite; rhyolitic to rhyo-dacitic tuf
Ol?
TRc
Massive conglomerate
Tdi
Pah Rah Formation
Glacial deposits
QToa
JTRvl
Volcaniclastic rocks and limestone
Tuff of Hoodoo Canyon
OCpw
Lower part of Pogonip Group, Windfall Formation
OCsl
Shale and limestone
Tsh
Shingle Pass tuff; ash-flow tuffs
Ps?
Sedimentary rocks; limestone, sandstone
TRg
Grantsville Formation; lmst, shale, conglom
QTm
Sedimentary strata and interbedded tuffs
Northumberland tuff, other tuff. megabreccia
Mj
Joana limestone
Tvi
Intermed. volcanics; rhyodacite, andesite, tuff
Tsh?
Rhyolitic rocks
DSOd
Dolomite and limestone
mvs
Peavine Sequence, undifferentiated metavolcanic/me
TRsl
lower subunit
K
TRPzsv
Pg?
Lower Part; Pogonip Group, Eureka Quartzite
Chainman Shale
Qm
Morainal deposits
Diamond Peak Formation
TJf
Felsite
Porphyritic dacite to quartz latite intrusive rock
Arcturus Formation, Rib Hill Sandstone
Qb
Basalt and basaltic sediments
Andesitic rocks
Twt?
Toiyabe(?) quartz latite
MDu?
Limestone and shale
TKs
Sedimentary rocks; clastics
Dno
Nevada Formation; Oxyoke Cyn sandstone member
Nevada Formation; chiefly dolomite
Twa
Volcanic rocks; ash-flow tuffs
Tshu
Shingle Pass(?) and some other tuffs
Tp
Pancake Summit tuff and overlying tuff
Ocw
Clipper, Willow Cyn; Pinecone, Vinini Formations
Jp
Older Plutonic rocks; quartz diorite
Ely limestone; thin-bedded
Pd
Diablo Formation; conglom, grit, qtzite, slate
Deu?
Du
Guilmette Lmst, Simonson/Sevy Dolomites, undiv
rhyodacite
Tol
latite welded tuffs.  In Stillwater Range
Qtg
tuffaceous sedimentary rocks
Tql
quartz latite
OCbc
Broad Canyon sequence of Means
E
Twt4
OC
Pogonip Group, Qtzite, Shale Cambrian Lmst
Qtf
Tufa deposits
Basaltic and andesitic rocks
Excelsior form.; felsic volcanics, clastics, tuffs
Luning Formation; limestone, dolomite
QTc
Volcanogenic clastic rocks
Twt2
Rhyolite flows, local ash flows, breccias, and int
TRld
MDd
Diamond Peak Frm, Chainman/Pilot Shale, Joana Lmst
Cu?
Siliceous sinter deposits
Antelope Valley Limestone
Tri
Twt5b
Crystal-rich ash-flow tuff
Basalt flows and intrusive rocks
Twt5a
Crystal-rich biotite-bearing ash-flow tuff
SOeu
Undifferentiated volcanic rocks
Chainman shale, Diamond Peak Frm; shale, sandstone
Alluvial dep.; valley fill, gravel, slope wash
DSl
Tor and McMonnigal limestones
SOu?
Devils Gate limestone
Kgp
granite porphyry
Ttsv
Tuffaceous rocks, sed strata, rhyolitc bod; undiff
Older volcanics; rhyolite, dacite
Lincoln
Guilmette Formation
Laketown dolomite
Dse
Sevy Dolomite
Qol
Tpc
Ki
Intrusive rocks (intermediate group)
limestone
Tt
Toiyabe Quartz Latite
lava flows, ash-flow tuff, and sedimentary rocks
Twt7
Moderately crystal-rich ash-slow tuff
Twt1
Crystal-poor ash-flow tuff
CZgh
Gold Hill Formation; quartzite, shale, limestone
Tshu?
Td?
Limestone, undifferentiated
Dg?
Tvl
Lower volcanic sequence of western ranges
Dc
Cockalorum Wash Formation; siltstone, limestone
TKt
Sedimentary rocks and tuffs
Chainman shale, Diamond Peak Frm; sandst, conglom
PPw
Wildcat Peak Formation; limestone, chert
PPec
Ely limestone w/abundant chert in grit, conglom
Tnbx
Northumberland tuff, other old tuffs, megabreccia
Dolomite
SOmg
Masket shle; Gatecliff frm; Diana, Caesar Cyn lmst
Moraines: present only in Toiyabe Range
Cw
Windfall Formation; cherty limestone
Sed strata in Hot Creek, Park, Reveille Ranges
Quartz diorite
Sevy dolomite
Qm?
Thc
Tuff of Hot Creek Canyon
Tm
Monotony tuff and lava
Kgp?
Plutonic rocks; granitic pluton
Thcp
Horse Camp Formation
Tay
Dacitic to Basaltic rocks; younger mafic rocks
TKvu
Volcanic rocks, undifferentiated
Luning form.; limestone, dolomite, shale
Dunlap Formation; conglom, qrtzite, siltite, mudst
Shingle Pass(?) and other tuffs
Tmw
Ash-flow tuffs; rhyolitic to rhyodacitic
Msw
Clastic rocks, Scotty Wash Quartzite
Dolomite, undivided
Te
Esmeralda form.; shale, sandst., conglom., rhyol.
Twa?
Tli
Intrusive, extrusive volcanic rocks
QTb?
QTl?
Tsc?
Knc?
Tad?
Dacitic to basaltic rocks; intermediate lavas
Middle vol sequence; andesitic rocks
Dsi
Simonson dolomite
Tq
Rhyolitic lava or Portuguese Mountain
Intrusive rocks, undiff; rhyol, rhyodac, andes
Tvt
Younger volcanics, tuffs and tuffaceous sediments
JTRsg
Sunrise, Gabbs Formations; limestone, siltstone
Tvl?
Oes
Ely Springs dolomite
Tpy
Young tuffs of the Pancake Caldera Complex
Thbx
Volcanic rocks, undiff; Hedwig breccia
Cld
Limestone, dolomite, Dunderberg Shale, undiff.
Ely Springs Dolomite
gr-m
Tpe
Pre-Esmeralda volcanic rocks
Laketown Dolomite
The?
Vol rocks of Hannapah, Ellendale mining dist; tuff
Thv
Tuffs of Hannapah
PPl
Penn. limestone, w/very Late Miss. fauna
Tuff of Bald Mountain
Simonson Dolomite
Fraction tuff; rhyolitic to quartz latitic tuffs
Thm
Vol rocks, Hannapah, Ellendale mining dist; tuff
Tuff of Saulsbury Wash
Esmeralda
TJd
Aphanitic to med.-grain dioritic to andesit. rocks
Tis
Middle vol sequence; intermed to siliceous rocks
Palmetto Formation; shale, chert, limest., qtzite.
Excelsior Formation
Rhyolite plugs, domes, and flows
Rhyolite plug or flow
Diablo Formation; dolomite, grit, conglomerate
Tto
Tonopah formation; silicic ash-flow tuffs, lavas
Shale, siltstone, sandstone, limestone, and tuff
Candelaria Formation; shale, sandstone
Mm
Monte Cristo Limestone
Tr?
Dn?
Diorite, intrusive
MDe
Eleana Formation; mudstone, shale
Tcw
Calloway Well Formation
Tmpm
Middle Tuffs of Moores Station area
Intrusives, undiff rhyol of Big Sand Springs Valle
MzPzsp
Ultramafic rocks; serpentinite
MDpj
Limestone and some shale
Older volcanic rocks; lavas, intrusives
Dsu
Pd?
Diablo(?) Formation; conglom, lmst, sltst
Intrusive rocks; undifferentiated
Tvu?
Landslide deposit
Tvr
Silicic vol rocks; rhyolite to trachyandesite
Cd
Dunderburg shale
TKc?
Cpc
Pole Canyon limestone
Twti
Toiyabe quartz latite; dacite
Clp
Lincoln Peak Formation
CZzw
Zabriskie quartzite; Wood Canyon Formation
PPs
Upper Pennsylvanian sandstone, w/some Permian beds
Carrara Formation; schist, phyllite, limestone
Silicic rocks
Patterson Pass Shale of Kellogg (1959)
Intrusive rocks; granitic to monzonitic
Tov?
Mld
Limestone of Dobbin Summit
TRl?
Tkc
Tuff of Kiln Canyon
Tnr?
Needles Range(?) Formation
TKd
Csl
Shale and limestone, undivided
Tdf
Darrough felsite
TRJ
Gabbs and Sunrise form.; shale, limestone
JTRsl
Sunrise, Gabbs, Luning Formations; undivided
Tq?
MDu
Ts?
Ta?
Qbc
Basaltic rocks; basaltic scoria
Slm
Lone Mountain dolomite
Tpo
Old tuffs of the Pancake Caldera complex
Pilot shale
Diablo form.; sandstone, grit
Gilbert Andesite
Rhyolites, undifferentiated
Tyr
Rhyolitic to latitic flows and plugs
Taw
Welded ash flow
Trr
Rocks of the Reveille Range
The
Ep
Porphyritic andesite
Tlr
Volcanics; silicic lava flows
CZgh?
Gold Hill(?) Formation; shale, mudstone, siltstone
Tbx2
Middle tuffs of Moores Station area; brecciated
Ml
Limestone of San Antonio Mountains
TKrg
Rhyolite dike swarm in marg zone of granite
Younger lake beds
QTl
Intermediate lake beds
Permian and Pennsylvanian limestone and sandstone
Tvd
Younger volcanic rocks, biotite dacite
Pioche Shale
Prospect Mountain Quartzite
Tn?
Pole Canyon Limestone
Cpc?
Younger volcanic rocks, intravolcanic sedimentary
Clastic rocks, Chainman Shale
Joana, Mercury, and Bristol Pass Limestones
Msc
Upper Mississippian clastic rocks, undivided
Cambrian limestone and dolomite, undifferentiated
Tj?
Tvy
Younger volcanic rocks, undivided
Sl?
Cld?
Limestone and dolomite, and Dunderberg Shale, undi
DSu
Devonian and Silurian dolomite, undifferentiated
Tgg
Gilmore Gulch Formation; clastic sedimentary strat
Tpv
Tuffs of Peavine Canyon
Ely Springs dolomite, Eureka quartzite, undiff
Dl?
Dunlap form.; sandstone, conglom., volcanics
Silurian and Ordovician dolomite, undifferentiated
Dse?
Mj?
Intrusive rocks, granodiorite
Desert wash, colluvium, alluvium, playa deposits
Older lake beds
Coarse-grained granitic rocks
Tsn
Shingle Pass(?), Needles Range Formations
Tbx1
Gilmore Gulch Formation; megabreccia, welded tuff
Basaltic rocks; basalt in flows
Pl
Permian limestone, w/fossilif. Pennsylvanian beds
Basaltic rocks; basaltic ash, scoria
Tb?
Tpv?
Pzdi
Ultramafic rocks; diabase
Twai
Volcanic rocks; rhyolitic to rhyodacitic
Pzub
Ultramafic rocks; pyroxene porphyry
Dsi?
Jasperoid
Rhyolitic to quartz latitic welded ash flows
Younger volcanic rocks, tuffs and tuffaceous sedim
Intrusive rocks, diorite
Tru?
Taf
airfall tuff and tuff breccia of rhyolitic comp.
Rhyolitic flows, domes, breccias, intrusive mass.
Glacial moraine
Pzu
Nye_South
Paleozoic sedimentary rocks, undivided
Tafl?
Lower nonwelded ash flow
Harkless Formation; dominantly green siltstone
Tuffaceous shale and sandstone
Ccm
Campito Formation; green siltstone
Poleta Formation; carb., siltst., limest., qtzite.
Dacite and rhyodacite
Tuff, shale, limestone, and conglomerate
Siebert Tuff
Tuff of White Blotch Spring
Sed. rocks, sandstone conglom., and tuff
Thirsty Canyon Tuff
Tafu
Rhyolitic airfall tuff
re
Reed Dolomite
wy
Wyman Formation; siltstone w/limestone interbeds
Ccl
Lyndon Limestone
Tml
Milltown Andesite
Tss
Sandstorm Formation
Tuffs of Antelope Springs
Sedimentary unit 1
Tuff and tuffaceous sedimentary rocks
TJr
Rhyolite and quartz porphyry dike rocks
Fraction Tuff
Ch(?)
Harkless(?) Formation
Cms
Mule Spring Limestone
Some older basalt flows and basalt dikes
Vindicator Rhyolite
Pozo Formation
Tmi
Mira Basalt; flow intertongues with Siebert Tuff
Porphyritic basalt
Tpl
Porphyritic latite or trachyandesite
Lacustrine limestone
TKv
Tar
Dark rhyolite or rhyodacite
Chisholm, Pioche Shale, and Lyndon Limestone, undi
Tsl
Lower sedimentary unit
Tvb
Volcanic breccia of andesitic or dacitic comp.
pCu
Gneiss and schist, undivided
Recent playa deposits
Csw
"Swarbrick Formation; limestone, chert
Op?
Tvt?
Fanglomerate
Pioche shale
Tam
Monotony tuff and lava; andesitic lavas, breccia
ash flow tuff
Quartz latite
Ce
Emigrant Formation; claystone, limestone, chert
Younger volcanics, spheroidal-weathered ignimbrite
Intrusive rocks, granite stocks and dikes
Basalt: Flows and plugs
Tbr
Belted Range Tuff
Chp
Highland Peak Formation
QTal
Intrusive rocks, rhyolite and microgranite dikes
Younger volcanic rocks, rhyolite complex
Tsw?
Dunlap Formation; sandstone, conglom., red shale
CZpm
Prospect Mountain quartzite
Tto?
Tqb
Rhyolite breccia
QTg?
TRC
Candelaria form.; shale, sandstone
Tis?
Ordovician rocks; slate, chert, limest., sandst.
Rhyolitic welded ash-flow tuffs
Tan
Quartz latite and felsite
Tdb
Debris beds
Tva
Younger volcanic rocks, andesite
Cw?
Tan?
MzPzm
Mafic rocks; dacite, rhyodacite, diorite
Tdx
Debris
Tsn?
Thm?
Tf?
Dacitic and quartz latitics; quartz latite flows
O
Oes?
Welded and nonwelded ash flows
Tl?
Older lake beds, Muddy Creek and Panaca Formation
Cca
Campito Formation; fine-grained quartzite
Tqm
Intrusives, quartz monzonite or quartz diorite
Lower welded ash flow
Weakly lithified sandstone and conglomerate
Tfb
Fraction Breccia
Basalt: Flows, plugs, and cinder cones
Esmeralda Formation; shale, sandstone, tuff
Tafl
PZpCs
Mica schist of White Mountains
Dacite
Tawu
Upper welded ash flow
Ppd?
PPes
Ely limestone; limy sandstone
Younger volcanic rocks, perlite
Nonwelded ash flow deposits
To
Oddie (?) Rhyolite
Moenkopi Formation
TKc
Older clastic rocks
ds
Deep Spring Formation; limestone, quartzite
Pkt
Clark
Kaibab, Toroweap, Coconino Formation, red beds
Sultan Limestone
Cdl
Dolomite and limestone, undivided
Trcm
Chinle and Moenkopi Formations, undivided
Tmc
Muddy Creek Formation
PPMc
Callville Limestone
Horse Spring Formation
Dmp
Muddy Peak Limestone
PPMb
Bird Spring Formation
Qvp
Timber Mountain, Paintbrush, and Crater Flat Tuffs
Ash-fall tuff and nonwelded ash-flow tuff
Carrara Formation
pCim
Igneous and metamorphic rocks
pCj
Johnnie Formation
Emigrant Formation
Tvc
Younger volcanic rocks, rhyolitic unit
Welded ash flows
Ammonia Tanks Member of Timber Mountain Tuff
Playa lake deposits
Chp?
Tuff of Monotony Valley
CpCw
Wood Canyon Formation
Cb
Bonanza King Formation
Mr
Rogers Spring Limestone
Mmc
Aztec sandstone
Ddn
Devils Gate Limestone and Nevada Formation
undifferentiated volcanic rocks
Oep
Ely Sp Dol, Ek Quart, Pogonip Gr, undifferentiate
Prb
Red beds
Kaibab Limestone and Toroweap Formation, undivided
DCu
Devonian to Cambrian limestone and dolomite, undif
Ml?
Csh
Siliceous hornfels
Marble; poss. corr. w/Mule Sp. Limestone
Miller Mtn. form.; marble, hornfels, slate
Campito Formation; siltstone, quartzite
Dnw
Nevada Formation; Woodpecker limestone member
Tvb?
Younger volcanic rocks, spheroidal-weathering igni
Ccm?
Tsu
Shale, siltstone, sandstone, limestone, conglom.
Op(?)
Tvn
Intrusive rocks, andesitic volcanic neck
Intrusive rocks, diabase
QTs4
Weakly lithified conglomerate and tuffaceous rock
Cp(?)
Poleta(?) Formation
Dcu
Ash flow deposits
Lyndon Limstone, undivided
ds?
Deep Spring Formation; limest., dolomite, qtzite.
Ca
Cn
Nopah Formation
Tsa2
Tma
Kendall Tuff and latite of Ransome (1909a)
Mississippian and Devonian rocks, undifferentiated
Coarse-grained rhyolite porphyry intrusions
QTmr
Malpais Basalt and Rabbit Spring Formation
pCs
Stirling Quartzite
Tas
Tuffaceous shale and intertonguing airfall tuff
Tdv
Dacite vitrophyre
Chispa Andesite
Eleana Formation
Cca(?)
Oee
Ely Springs Dolomite and Eureka Quartzite
Taf(?)
TRCS
Chinle Formation, Shinarump Member
Weakly consolidated gravel and sand
Indian Trail Formation
Mzm
Intrusive masses of qtz monzonite and granodiorite
Prb?
Du?
Devonian rocks, undifferentiated
Dolomitic sedimentary rocks undivided
Bedded clay and silt
pCw
Wyman Formation
Shale, siltstone, sandstone, limestone, tuff
pCr
Conglomerate and sandstone
andesite
Ttc(?)
Cz
Zabriskie Quartzite
Kbl
Baseline Sandstone, lower member
Quartzite, shale, and limestone, undivided
Su
Precambrian rocks
Airfall tuff and nonwelded ash flows
Tkvu
Tgp
Intrusive rocks, granite porphyry
Chinle Formation
Trb
Rhyolite of Black Mountain
Devonian to Cambrian limestone, dolomite, undiff.
Ttr
Trachyte
TRm?
Basalt, some older basalt flows and basalt dikes
TRC?
Paleozoic carbonate rocks, undifferentiated
Ku-Ep
Cc?
Chisholm Shale, undivided
Pkt?
PPt
Tippipah Limestone
Msw?
Pzt
Remnants of thrust plate
mb
Megabreccia
undivided porphyritic rocks
pCg
Gold Butte Granite of Longwell
grCz
Kt
Thumb Formation
pCm
gneiss and schist
DCg
Goodsprings Dolomite
Shaly rocks
Nopah Formation; gray thick-bedded dolomite
Opo
Pogonip Group; thin-bed limestone w/shaly interbed
Tws
Wahmonie and Salyer Formations
Kwt
Willow Tank Formation
grpC
pCsj
Striling Quartzite, Johnnie Formation, undivided
Titus Canyon Formation
grpC?
TKgr
holocrystalline rock
Mb
Tko
Overton Fanglomerate
Las Vegas Formation
Kbu
Baseline Sandstone, upper member
Tkg
Gale Hills Formation
Rogers Sp Lim., Muddy Peak Lim., undivided
TKci
undifferentiated intrusive rocks
pCc