[[margin]] 15 [[/margin]] Section at end of bluff 6645 
[[margin]] 384b 
[[image: drawing of stratigraphic section with labels as follows]] 
8 ’ 
5’ E 
15' D 
13' C 
3' 6645 
1' B 
Sandstone & yellow buff dol. 4-5' A 
[[/margin]] 
A- buff irregularly bedded massive ss or dolomite 
B - gray smooth Is 1 '-1 1/2 under this along bluff comes about 1 ' or 2' of 
thin bedded material. 
C. Shaly Is., the lower 3' abounding in Spirifer & Atrypa. The upper part 
yellow weathering & without fossils 
D. - 15' hard massive, with calcite rods - Smooth gray in fracture - no 
fossils seen 
E - covered, probably same as D. - 8' hard massive Is. breaking into 
irregular lumps. - no fossils seen. This forms top of bluff. 
[[margin]] 384C [[/margin]] 6646 upstream from 6645 - hard lumpy 
irregular Is in creek a lump produces Atrypa, Stropheodonta Spirifer and 
a large Rensselandia 
Face of bluff at 6646 
[[image showing layers labelled as follows]] 
Renss 
buff sandy 
Irreg. bedded Is. 
buff sandy 
G. Arthur Cooper - Field notes, 1966 
Transcribed and Reviewed by Digital Volunteers 
Extracted Nov-02-2015 11:09:05 
Smithsonian Institution Transcription Center, Smithsonian Institution Archives 
