Tag Archives: Droste

[047-21]Clay Mineralogy of Lower Tertiary Continental Deposits of the San Juan Basin, Colorado

Droste, John B. Clay Mineralogy of Lower Tertiary Continental Deposits of the San Juan Basin, Colorado 047-21-print  

Posted in 1954, Transactions | Tagged , , | Leave a comment

[050-30]Clay Mineral Composition of Calcareous Till in Northwestern Pennsylvania

Droste, John B and Doehler, Robert W. Clay Mineral Composition of Calcareous Till in Northwestern Pennsylvania 050-30-print  

Posted in 1957, Transactions | Tagged , , | Leave a comment