Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
the arkoses rounded flat masses of green shales
pieces of some round hard torn off are rolled
into the arkoses. All in all it gives one the
idea of stream action rather than sea wave as-
sorting.
Rearly there are small accumulations of quartz pebbles in size from 1 to 2 1/2 inches.
The red clays are brown or little in their colour,
hare much muscovite and sand and have a
hardy fracture. In places are very irregular deposits
decoral deposition we also saw here and there
rootlets more angular than vertical in position.
are more local and
The Haarl shales are crasser and are associated
with the arkoses as if they formed in local pools
during the intervals between the forests. The Haar shale
in depth to plant material and muscovite.
The arkoses have at times just masses of red
shale including, masses torn up by the stream
and cut into leaving beds 5 to 75 feet
dry standing out off in each end by the arkoses.
One sees no evidence of logs in the arkose
but occasionally in the clay shales there are
small pieces of Lepidodendron.