Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Sunday August 7 - 1910
Table Head.
Another dark day with light rain throughout the morning.
Started out at 7:30 to finish the top of the Table Head section.
Torahfel measured the thickness of M.2 making it not over 70
feet instead of 308 feet as given by Richardson.
The strike of M.2 at Table Head Point is N.32 E., dip 34 S.
"M.1" or 13 Thickness 81 Richardson, Torahfel made it 70 feet.
Blackish-grey, nodular, petrofiticorous, thin bedded limestone
with a little black shale in pockets between the nodular limestone. These
are interbedded with some regularly bedded grey limestone.
The
nodular layers are full of broken trilobites in pockets. All
of my M.1 fossils collected today and on Friday are from those
layers. Also those collected in the afternoon at the isolated mass
indicated in the sketch of the next page (Ampyx quite abundant here).
"M.2" or 13. Thickness Richardson 17 4 feet, Torahfel made it 208 feet.
Thin bedded (thicker than M.1, i.e. 2 to 4 or 5 inches), regularly layered
grey to light grey creases or dark green M.1 limestones with a little
dark fissile shale between the limestones (1/4 to 8 inches of shale bands).
Fossils are far rarer here than in M.1. Some were collected
today and none on Friday.
Above these limestones fans gradually into the black bituminous
shales of zone M.3. M.1 and M.2 have the same dip and strike as M.2.
"M.3" or 13, Thickness 22' Richardson,
Dark blue to black shale that hasaly gradually fans into the
limestones of zone M.2. Near the top the shales have thin bands (1-2
inches) of sandstone that become more abundant and or gradually
fans into the sandstones of zone O or 14.