Surficial geology of San Diego-Tijuana area, USA and ... · Surficial geology of San Diego-Tijuana...
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0 -7,000 -4,000 -500 1,000 5,000 12,000 Elevation, in feet, NAVD88 Volcanic (onshore) and undivided sedimentary and volcanic rocks (offshore) Miocene Metavolcanic and Metasedimentary Rocks (Mesozoic) Santiago Peak Volcanics Undivided Crystalline Rocks (Mesozoic) Metamorphic Intrusive Undivided Sedimentary Deposits Quaternary Water Undivided Sedimentary Rocks Plio-Pleistocene (San Diego Formation) Oligocene (Otay Formation) Miocene Eocene Cretaceous Geology EXPLANATION Tecate Creek Creek Campo S a n D ie g u i t o R . Ysabel Creek San Diego River Otay River Sweetwater River Santa River Tijuana wood Cotton Creek Carlsbad Canyon Islas De Los Coronados La Jolla Canyon Coronado Bank El Capitan Lake Upper Otay Lake San Vicente Reservoir Morena Reservoir Lake Cuyamaca Barrett Lake Lake Sutherland Lake Hodges Loveland Reservoir Lower Otay Lake Sweetwater Reservoir El Carrizo Reservoir Aberardo L. Rodriguez Dam Salton Sea San Diego Trough Fault — Selected faults from multiple sources. Solid where accurately located, dashed where approximately located, dotted where concealed. Pacific Ocean United States Mexico Baja California California P e n i n s u l a r R a n g e Study area boundary C o l o r a d o R i v e r H y d r o l o g i c R e g i o n Mountains San Ysidro Laguna Mountains Riverside County San Diego County Imperial County Colorized elevation model base from U.S. Geological Survey digital elevation data, 1/3 arc-second resolution 0 20 MILES 0 10 10 20 KILOMETERS 117°30’ 117°00’ 116°30’ 116°00’ 33° 00’ 32° 30’ Surficial geology of San Diego-Tijuana area, USA and Mexico (Cromwell, unpublished). San Diego Embayment Santee La Mesa El Cajon San Diego Chula Vista Tijuana Tecate National City Rosarito Escondido Oceanside Del Mar La Jolla Poway Encinitas Julian Campo Study area CALIFORNIA U.S.A.
Transcript of Surficial geology of San Diego-Tijuana area, USA and ... · Surficial geology of San Diego-Tijuana...
0
-7,000-4,000
-500
1,000
5,00012,000
Elevation, in feet,NAVD88
Volcanic (onshore) and undivided sedimentary and volcanic rocks (offshore)
MioceneMetavolcanic and Metasedimentary Rocks (Mesozoic)
Santiago Peak VolcanicsUndivided
Crystalline Rocks (Mesozoic)
MetamorphicIntrusive
Undivided Sedimentary DepositsQuaternary
Water
Undivided Sedimentary RocksPlio-Pleistocene (San Diego Formation)
Oligocene (Otay Formation)Miocene
EoceneCretaceous
Geology
EXPLANATION
Tecate Creek
Creek
Campo
Sa n Die gu
ito R .
YsabelCreek
San
Diego River
Otay River
Sweetwater
River
Santa
River
Tijuana
wood
Cotton
Cree
k
Carlsbad Canyon
Islas De LosCoronados
La Jolla Canyon
Coronado Bank
El CapitanLake
UpperOtay Lake
San VicenteReservoir
MorenaReservoir
LakeCuyamaca
BarrettLake
LakeSutherlandLake
Hodges
LovelandReservoir
Lower OtayLake
SweetwaterReservoir
El CarrizoReservoir
Aberardo L.Rodriguez Dam
SaltonSea
San Diego Trough
Fault — Selected faults from multiple sources. Solid where accurately located, dashed where approximately located, dotted where concealed.
Pacif icO
cean
United States
Mexico Baja CaliforniaCalifornia
Pe
ni
ns
ul
ar
Ra
ng
e
Study areaboundary
C o l o r a d o R i v e r H y d r o l o g i c Re
gi o
n
MountainsSan Ysidro
Laguna Mountains
Riverside County
San Diego C
ountyIm
perial County
Colorized elevation model base from U.S. Geological Surveydigital elevation data, 1/3 arc-second resolution
0 20 MILES
0
10
10 20 KILOMETERS
117°30’ 117°00’ 116°30’ 116°00’
33°00’
32°30’
Surficial geology of San Diego-Tijuana area, USA and Mexico (Cromwell, unpublished).
San DiegoEmbayment
Santee
La Mesa
El Cajon
San Diego
Chula Vista
Tijuana
Tecate
National City
Rosarito
Escondido
Oceanside
Del Mar
La Jolla
Poway
Encinitas Julian
Campo
Study area
CALIFORNIA U.S.A.
