120'00' 
sms 5 ' 
T£^' 4 % 
faulr' 4 ' 
Pt.SaI^| 
Seal Rock 
pr. S/i Lj 
LANDING 
[reiarS^h 
LOMPOC-'. 
landing' 
'altuinu 
fi ys&tf*™*- 
I ■ : o -os , . c 
8 i 
« IV,if (I 
Simla 
^eLcar 
Arnold and Anderson 
P? Conception*^ 
Government Pt 
mMmmm 
wmm 
... •.VJ.j, 
E.M. Douglas, Geographer. 
R. B. Marshall, Topographer in charge. 
Topography by S. N.Stoner 
Triangulation by U.S.Coast and GeodeticSurvey and GF.Urquhart 
Surveyed .in 1903 and 1904. 
PRELIMINARY GEOLOGIC AND STRUCTURAL MAP OF THE LOMPOC AND GUADALUPE QUADRANGLES, CALIFORNIA 
INCLUDING A LARGE PART OF THE SANTA MARLA OIL DISTRICT 
Geology by Ralph Arnold, 
Robert Anderson, HR. Johnson, 
and H.W. Fairbanks. 
Surveyed in 1906. 
Scale 126000 
5 Idlo metei-s 
Contour interval 10 O teet 
Datum is niA’ii/i seer le vel 
1007 
LEG EN D 
SEDIMENTARY ROCKS 
A*sp h alt 
IGNEOUS ROCKS 
Post-- Monterey inlrusives 
( intrusive diabase) 
Cross Sections (See PI.VII) 
! 20 ° 4 O* 
U. S . GEOLOGICALSURVEY 
George otis smith,director 
30 ' 
8< 
Alluvium 
(shown only in huger valleys) 
Dune sand 
Terrace deposits 
< intending alluvium eaxept i/i 
large?' valleys) 
UNCONFORMITY 
Fernando ftirmation 
UNCON FORM !TY 
Monterey shale 
(siliceous, bituirunous, diainmaceoas 
shales and limestone) 
Tuff rn.terbedd.ed. with 
the Monterey 
Pre Monterey intnisones 
(intrusive basalt, diabase,gabbro, 
peril!elite, and serpentine ) 
-AF 
S Y M B O LS 
Anticline 
Anticline where doubtful 
Antic line overtume d 
Anticline plunging 
—— 
-— Sync line 
. Syncline where doubtful 
Sync line overturned 
Syncline plunging 
Faults 
Faults where doubtful 
Dip and amoun t 
Horizontal beds 
Vertical dip 
Oil well 
Oil we 11 abandoned 
Vaqueros, Sespe, and Tejon forma tions, 
immfferen dated 
< inducting someMonlerey irvSantnYrwz Range. 
Sandstone,shale,conglomerate,and limestone ), 
j 
Pre - Monterey 
(sandstone, shale, and cong lo met xtie ) 
Limestone near summit 
of Vaqueros formation 
Knoxville formation 
(Scuvdston e, shale, and rang tome rate- ) 
UNCONFORM !TY 
Franciscan formation 
(chiefly serpentine intruded in 
sandstone, jasper, and a ssooiated 
metanwrphic glancophane schist ) 
PRE-TERTIARY? TERTIARY JURASSIC? CRETACEOUS CRETACEOUS- TERTIARY QUATERNARY 
