84 



GRAVITATIONAL METHODS 



[Chap. 7 



Table 18 — Concluded 

 DENSITIES OF SEDIMENTARY ROCKS 



Matebial 



Shale, Black, Com- 

 manchean 



Shale, Upper Cre- 

 taceous 



Shale, Devonian 



Shale, black 

 Shale, red 

 Shale, red 

 Chazy shale & 



sandstone 

 Shale 



Shales 



Shales, yellow- 

 Shales 



Shales, Tertiary 



Anhydrite 



Dolomite 



Dolomite, Beck- 

 mantown 



Limestones 



Limestone 



Limestones 



Limestones 



Cap rock 



Shales & limestone 



Gypsum & anhy- 

 drite 



Shell limestone 



Limestone 



Chalk 



Locality 



Falun, Kan. 



Hamilton Co., 



Kan. 

 Hannibal, Mo. 



Irvine Field, Ky. 



Malagash, N. S. 

 Malagash, N. S. 

 Leitrim, Ont. 



Malagash, N. S. 

 Venezuela 



Beienrode salt 

 dome, Germany 



Investigator 



Hedberg 



Miller 

 Miller 



Brankstone, 



Gealy & Smith 

 Reich 

 Miller 

 Hedberg 



Tuchel 



Density (5) 



2.12 



1.98 



2.32 



2.57 

 2.56 

 2.50 

 2.5 



2.36 



2.3-2.6 



2.17-2.30 



2.0-2.45 



1.9 



Remarks 



From Mentor 



beds 

 Graneros 



shale 

 Hamilton 



shale 



At 200 ft. 



Increasing 

 with over- 

 burden 



Limestones and Dolomites 



Beienrode salt 

 dome, Germany 

 Leitrim, Ont. 

 Hazeldean, Ont. 



Leitrim, Ont. 



Kansas 

 Gulf coast 

 Leitrim, Ont. 

 Beienrode salt 

 dome, Germany 



Tuchel 



Miller 



Barrell 



Miller 



Reich 



George 



Barton 



Miller 



Tuchel 



Brankstone, 



Gealy & Smith 

 Reich 



2.9 



2.8 



2.8 



2.76 

 2.7 

 2.68-2.84 

 2.67 

 2.6 

 2.6 

 2.6 



2.4-2.6 

 2.07 



1.8-2.6 



At 588 ft. 



Average 

 At 158 ft. 



