Page 9 - edwards1947

_,,_

ta1n oi,l in eomnercial quantities that is now being produoed.

"The Bering t.0ne is the lowest stratigraphic producing m ne

in the field and is in beds of the Mohnian stage of the upper

Miocene. It consists of fine t.o coarse sam. s of varying 11 tho•
logy. The producing zone consists of roughly the ur,y_er 200

feet of a predominantly sandy section whioh is s, me 1100 to
1200 feet thick. The lower portion of this sandy section ts

r:et. The top of the zone ranges 1n depth from 7600 to '1900
4
feet.:J

There are oil producing zones in both the lower and upper

Delmont ian stage. "The to:p of the Del Valle zone is s, me 1200

to 1400 feet above the top ot the Bering zone in l>eds ot tb.e

lower !>elmontian stage of the upper :tiocene. The general

portion of the sect ion occupied by the zone 1a h1Sh1J lent1•
5
cular with shales being replaoed by satds very ri:n,1dl7•!/

The Videgain. Vasquez. and. Vasquez 13 zonee (the Vasquez 13

1s not shown on the etruoture seotions) are considerei to be

of u:opermost Miooene age (uppermost De1montian stage), '!'he

producing sands average about 100 feet in thiokness. separated

generally by shales,
6
'l'arbe,Y states that "a study o:t foraminif'eral samples

indicates that a slight angular unconformity and overlap mapped

on the east plunge of too Temesaal anticline is eqaivalent to

the 1;11ocene•Miooene f'orarniniferal division used in the Del

litter, 3. '!. and'. '!.frat1i, W. F·•• _g_p_. c It., P• !9, 1'117.
Matter, J. E• and Wrath, w. F., Nem7""!947.
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Tarbet, L. A•, idem, 1942.