Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
poor exposure of soft beds. At this locality
and to S, across drows the lower platy SS
or shales or sits on massive light ss & slates.
No black shale visible. Is slope at ? blush
or claystone - on
A
Lower platy-ridge forms
B
< massive grey local
possible
clay
< massive light grey
this depends whether contact goes of A or B
Remains of exploration trench here shows
presence of 1 bentonite in silty grey shale
This is 3rd Glencarn clay
6.
Ridge in general shows 3 Glencarn sandstones.
the usual clays. 1st clay only one mined to date
Exploration tunnel to other Glencarn clays new
(1951 Aug) being driven
in Johnson Mine.
7
As north end hogback approached the Lytle
sandstones coarser & thicken to great width
course sandstone 2nd col. At north end the
unrecognized clay above ss also thick and
a "Fusion-Lytle" setup is present.