CENOZOIC

MESOZOIC

PALEOZOIC

PROTEROZOIC

SURFICIAL DEPOSITS

SILICIC TO INTERMEDIATE COMPOSITION

VOLCANIC ROCKS

BASALTIC

VOLCANIC ROCKS INTRUSIVE ROCKS

SEDIMENTARY AND

METAMORPHIC ROCKS

Rocks of the southern

Death Valley region

Rocks of the Nevada Test Site

and vicinity

? ? ?

? ?

?

?

?

?

?

Holocene

Pleistocene

Pliocene

Miocene

Oligocene

Eocene and Paleocene

Upper Triassic

Middle Triassic

Lower Triassic

Lower Permian

Upper Devonian

Middle Devonian

Lower Devonian

Upper Ordovician

Upper Cambrian

Middle Cambrian

Lower Cambrian

Middle Ordovician

Lower Ordovician

QUATERNARY

TERTIARY

CRETACEOUS

JURASSIC

TRIASSIC

PERMIAN

PENNSYLVANIAN

MISSISSIPPIAN

DEVONIAN

SILURIAN

ORDOVICIAN

CAMBRIAN

LATE PROTEROZOIC

MIDDLE PROTEROZOIC

EARLY PROTEROZOIC

CORRELATION OF MAP UNITS

Prepared in cooperation with the

NEVADA OPERATIONS OFFICE, NATIONAL NUCLEAR SECURITY ADMINISTRATION, 

U.S. DEPARTMENT OF ENERGY (INTERAGENCY AGREEMENT DE-A108-96NV11967)

MISCELLANEOUS FIELD STUDIES MAP MF-2381-A

Version 1.0

Sheet 2 of 2

Pamphlet accompanies map

U.S. DEPARTMENT OF THE INTERIOR

U.S. GEOLOGICAL SURVEY

Qc

Qp

Qay

Qayf

Qayfe

Qayo

Qe

Qau

QTau

QTd

QTls

QTsf

Qao

Qlc

QTa

Qc Qp

Qay

Qayf

Qayfe

Qayo

Qe Qau

QTau QTd

QTls

QTsf

Qao Qlc

QTa

Qa

Tv

Ta4

Tt4

Tvg

Tar

Tas

Tr

LIST OF MAP UNITS

SURFICIAL DEPOSITS

Channel alluvium (Holocene)

Playa and (or) salt pan deposits (Holocene)

Young alluvium (Holocene to latest Pleistocene?)

Young fine-grained alluvium (Holocene to latest Pleistocene?)

Evaporite surface crust of salts and (or) carbonate (Holocene to latest Pleistocene?)

Intermediate-age alluvium (middle Holocene to latest Pleistocene?)

Eolian deposits (Holocene to middle Pleistocene)

Undifferentiated alluvium (Holocene to Pleistocene)

Undifferentiated older alluvium (Holocene to latest Tertiary)

Landslide block (Holocene to late Tertiary)

Old alluvial, paludal, or lacustrine sediments (Pleistocene to late Tertiary)

Deposits associated with modern or past ground-water discharge

 (Holocene to late Tertiary)

Old alluvium (late to middle Pleistocene)

Old lacustrine deposits (late to middle Pleistocene)

Oldest alluvium (middle Pleistocene to late Tertiary)

BEDROCK UNITS

SILICIC TO INTERMEDIATE-COMPOSITION VOLCANIC ROCKS

Young intermediate-composition lava flows, undivided (Pleistocene)

Volcanic rocks, undivided (Pliocene to Oligocene)

Felsic-composition lava flows, undivided (Pliocene to Oligocene)

Intermediate-composition lava flows, unit 4 (Pliocene and Miocene)

Ash-flow tuffs and interbedded air-fall tuffs, unit 4 (Pliocene and Miocene)

Rocks of the southern Death Valley region (Miocene)

 Greenwater Volcanics

 Intermediate- to felsic-composition lava flows of the central Death Valley volcanic field

 

 Intermediate- to felsic-composition lava flows of the southern Death Valley-

 Kingston Range volcanic belt

Tst

Tmt

Tpt

Tw

Tct

Tbt

Tlt

Tqv

Tuv

Tkv

Ta3

Tt3

Ta2

Tt2

QTb

Tb

Rocks of the Nevada Test Site and vicinity (Miocene)

Stonewall Flat Tuff and tuffs of the Thirsty Canyon Group, undivided

Tuffs of the Timber Mountain Group

Tuffs of the Paintbrush Group

Wahmonie and Salyer Formations, undivided

Tuffs of the Crater Flat Group

Tuffs of the Belted Range Group

Lithic Ridge Tuff, rhyolite of Picture Rock, Tunnel Formation, and comendite

 of Quartet Dome, undivided

Volcanic rocks of Quartz Mountain

Lava flows of the Belted Range

Intermediate-composition lava flows, unit 3 (Miocene and Oligocene)

Ash-flow tuffs and interbedded air-fall tuffs, unit 3 (Miocene and Oligocene)

Intermediate-composition lava flows, unit 2 (Oligocene)

Ash-flow tuffs and interbedded air-fall tuffs, unit 2 (Oligocene)

Older ash-flow tuffs and lava sequences, undivided

Tgy

Tai

Tws

Tgo

TKi

TKd

Tg

Jqm

BASALTIC VOLCANIC ROCKS

Young basaltic lava flows (Holocene to Pleistocene)

Basaltic lava flows, undivided (Pleistocene to Miocene)

Old basaltic lava flows (Pliocene to Miocene)

INTRUSIVE ROCKS

Young granitic intrusive rocks (Miocene)

Gabbro to diorite intrusive rocks of Willow Springs (Miocene)

Older granitic intrusive rocks (Miocene? to Oligocene)

Older intermediate-composition intrusive rocks (Oligocene to Cretaceous)

Mafic intrusive rocks (Oligocene to Cretaceous)

Oldest granitic intrusive rocks (Tertiary? to Triassic)

Avawatz Mountains quartz monzodiorite, undivided (Early Jurassic to

 Late Triassic)

Younger intermediate-composition intrusive rocks (Miocene to Oligocene)

Ts

Ts4

Tls

Tso

Ts3

Ts1

sv

Klw

Ja

c

m

u

Pkt

Pr

Pov

PSu

PMb

Pt

Pkc

Mu

Msc

Mm

MDe

MDu

Dm

Du

Ds

DSu

DSsl

DSlm

DShv

Sr

Opa

Mj

SEDIMENTARY AND METAMORPHIC ROCKS

Sedimentary rocks, undivided (Pliocene to Eocene)

Sedimentary rocks, unit 4 (Pliocene and Miocene)

Landslide and mega-breccia deposits (Miocene to Oligocene)

Sedimentary rocks older than the rocks of the Nevada Test Site and

 vicinity (Miocene to Eocene?)

Sedimentary rocks, unit 3 (Miocene and Oligocene)

Sedimentary rocks, unit 1 (Eocene and Paleocene)

Sedimentary and volcanic rocks, undivided (Mesozoic)

Lavinia Wash sequence (Upper and Lower Cretaceous)

Chinle Formation (Upper Triassic)

Moenkopi Formation (Middle? and Lower Triassic)

Aztec Sandstone (Jurassic)

Sedimentary rocks, undivided (Paleozoic)

Kaibab and Toroweap Formations, undivided (Lower Permian)

Redbeds (Lower Permian)

Owens Valley Group (Lower Permian)

Sedimentary rocks, undivided (Permian to Silurian)

Bird Spring (Lower Permian and Pennsylvanian) and Indian Springs

 Formations (Upper Mississippian)

Tippipah Limestone (Lower Permian and Pennsylvanian)

Keeler Canyon Formation (Lower Permian to Middle Pennsylvanian)

Sedimentary rocks, undivided (Upper and Lower Mississippian)

Scotty Wash Quartzite (Upper Mississippian) and Chainman Shale (Upper

 and Lower Mississippian), undivided

Monte Cristo Group (Upper and Lower Mississippian)

Eleana Formation (Mississippian and Upper Devonian)

Joana Limestone (Lower Mississippian)

Sedimentary rocks, undivided (Lower Mississippian and Upper and Middle

 Devonian)

Dlb

Dd

Dsf

Lost Burro Formation (Upper and Middle Devonian)

Dolomite and limestone, undifferentiated (Devonian to Upper Cambrian)

Slope-facies carbonate rocks (Upper to Lower Devonian)

Simonson Dolomite (Middle Devonian)

Sedimentary rocks, undivided (Devonian and Silurian)

Mountain Springs Formation (Middle Devonian, Lower Ordovician, and

 Upper Cambrian)

Mountain Springs (Middle Devonian, Lower Ordovician, and Upper

 Cambrian) and Nopah Formations (Upper Cambrian), undivided

Sevy (Middle and Lower Devonian) and Laketown (Upper and Middle

 Silurian) Dolomites, undivided

Lone Mountain Dolomite (Lower Devonian and Silurian)

Hidden Valley Dolomite (Lower Devonian and Silurian)

Roberts Mountains Formation (Silurian)

Palmetto Formation (Upper, Middle, and Lower Ordovician)

Ou

Opn

Op

e

u

nb

n

nbc

b

c

ms

h

z

Zws

Zw

po

cam

Zcaa

Zd

Zs

Zj

ZYp

Oee

Oes

Oe

Sedimentary rocks, undivided (Ordovician and Upper Cambrian)

Ely Springs Dolomite (Upper Ordovician) and Eureka Quartzite (Upper and

 Middle Ordovician), undivided

Ely Springs Dolomite (Upper Ordovician)

Eureka Quartzite (Upper and Middle Ordovician)

Pogonip Group (Middle and Lower Ordovician and Upper Cambrian) and

 Nopah Formation (Upper Cambrian), undivided

Nopah (Upper Cambrian), Bonanza King (Upper and Middle Cambrian), and

 Carrara Formations (Middle and Lower Cambrian), undivided

Pogonip Group (Middle and Lower Ordovician and Upper Cambrian)

Emigrant Formation (Upper and Middle Cambrian)

Sedimentary rocks, undivided (Upper to Lower Cambrian)

Nopah (Upper Cambrian) and Bonanza King Formations (Upper and Middle

 Cambrian), undivided

Nopah Formation (Upper Cambrian)

Bonanza King Formation (Upper and Middle Cambrian)

Carrara Formation (Middle and Lower Cambrian)

Mule Spring Limestone (Lower Cambrian)

Harkless Formation (Lower Cambrian)

Zabriskie Quartzite (Lower Cambrian)

Wood Canyon Formation (Lower Cambrian and Late Proterozoic) and

 Stirling Quartzite (Late Proterozoic), undivided

Wood Canyon Formation (Lower Cambrian and Late Proterozoic)

Poleta Formation (Lower Cambrian)

Campito Formation (Lower Cambrian and Late Proterozoic)

 Montenegro Member (Lower Cambrian)

 Andrews Mountain Member (Lower Cambrian and Late Proterozoic)

Deep Spring Formation (Late Proterozoic)

Stirling Quartzite and Reed Dolomite, undivided (Late Proterozoic)

Johnnie and Wyman Formations, undivided (Late Proterozoic)

Pahrump Group (Late and Middle Proterozoic)

Xmi Metamorphic and igneous rocks, undifferentiated (Early Proterozoic)

Qa

Tv

Ta4 Tt4

Tvg

Tar

Tas

Tr

Tst

Tmt

Tpt

Tw

Tct

Tbt

Tlt

Tqv

Tuv

Tkv

Ta3 Tt3

Ta2 Tt2

Qb

QTb

Tb

Tgy

Tai

Tws

Tgo

TKi TKd

Tg

Jqm

Qb

Ts

Ts4

Tls

Tso

Ts3

Ts1

sv

Klw

Ja

c

m

u

Pkt

Pr

Pov

PSu

PMb Pt Pkc

Msc Mu

Mm

MDe

MDu

Mj

Dm Du

Ds

DSu

DSlm DShv DSsl

Sr

Opa

Dlb

Dd

Dsf

Ou

Oee

Opn

Op

e

u

nb

n

nbc

b

ms c

h z

Zws

Zw

po

cam

Zcaa

Zd

Zs

Zj

ZYp

Oes

Oe

Xmi

Unconformity Unconformity

Unconformity

Unconformity

Unconformity Unconformity

Unconformity

Unconformity

Unconformity

Unconformity

Unconformity

Unconformity

Unconformity

Unconformity