Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
10/29/79
79104 COCKPIT POINT - Mason Neck
off Dunellen Core, Fairfax Co. Va.
3' med ARKOSIC GS.
x bedded -
Green SILTY CLAY
MOTTLED w red.
Potomac Fm. Putapsco equivlent
Fk. Beltoni 71/2" x Quad.
3280 m W of E bdy
5290 m N of S bdy
Steep cliff at and to 10' above
mean high water
Green clay as mentioned by Ward
No fossil ph.
w/ A. Powell, J. Shiff, et.