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Transcription
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'ell. 8/16/57/11 -- from 10' interval.
limey beds below crossed Uddistics
Sandstone Horizon in 2nd Section
of Black Eg Geol Canyon.
The lower part of the cyclic beds are exposed
to the easty Geological Canyon about like
the #21s mile. There seems to be similar stricture (at least for this area) as the
#2 beds taken suddenly beneath
the cyclic beds. The shale interval
here is a light gray and less shaly
silty. This of these cyclic calcareous
sand are present. The bulk of the
material is a coarse rubble and
includes darkgray ls pebbles 2-3"
diams and glass mattled occaulty
appearance on all.
I don't see how all of the stricture
here can be attributed to dragging
over buried reefs although that is
still within possibility. The explanation
goa SW-NE structure trend as appealing.
These beds seem to be faulted in the
15 units and flows into shale
but no definite such structures
were observed.
36
8/17/57
Section 29: Moore Ranch; 200gds east
of last Wolffs #1s exposure
1) Covered, probably siltstone and shales, base
grain under alluvions
2) Sandstone, light green gray to brownish orange,
vs grain quartz for most part; occasional
conglomeratic beds. 4'
3) LS, green gray, fragmental calcite, these are in
a limey shale matrix and are similar to the
#3 bed section 23. 27'
4) Covered, 11' (same as #3 m stream cut)
(but considerably more 8/17/57/4)
5) Sandstone, weather orange-brown; fresh is
green gray; vs to fine grain gray; 1 1/2'
6) Covered, 15'
7) Calcarenite; light gray to brown gray
weathering. up to 6" cobbley, very small
amounts of chert. (8/17/57/1- pebbles)
15' to top of ridge, this unit forms
dip slope here.
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