Page 6 - edwards1947
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ot puor outcrops are the two areas of slump (aee map), one
1n the Reretto and one in the lower'Iioo.
The area is easily aaaeesible by roads in Rasley Canyon•
San Martinez Chiquito Canyon, and 3an Martinez Grande Canyon.
Even more important than these, however, not only for aocessi•
bility but for :resb. road.cuts, are tm roads leading to the
oil wells in the prod.u.otive part of the area•
The settlement ot Valverde is loeated 1n San Martines
Chiquito Canyon. A small refinery operate,1 by R. 'E. Haven•
strite has been oonstructed on tbl river terrace between San
Martinez Grande Canyon and San Martinez Chiquito Canyon imme•
dia tely north of the Santa Clara River.
Thie report eovers field and laboratory work, the pu.r•
pose of whioh was to determine the struoture and stratigraphy
of the Del Valle field and adjaoent area by means of surface
mapping and interpretation ot well logs. 1h& base map used
for field mapping was an enlargement (l/12000) of the u.s.o.s.
Caataio Quadrangle (l/24000}. Aerial photographs supplemented
thie in the field. The field w:> rit waa started October 18,
1946 and completed May 3• 1947. A total of 30 days was spent
in the field •
The writer wishee ::o thank the Standard Oil Company of
California tor the use of their well logs from their Se:t'ulveda
lease of the Del Valle field., and Dra. R. H. Jahns and J. 'N.
Durham for their guidance and supervision.
