scholarly journals Preliminary chemical and mineralogical analyses of the major volcanic ash beds in the Oligocene Brule Formation, northwestern Nebraska

1994 ◽  
Author(s):  
Kendell A. Dickinson
Keyword(s):  
Author(s):  
Ruzica Vujasinovic ◽  
Angela R. Schmitt ◽  
Julia Zillies ◽  
Vilmar Mollwitz ◽  
Christiane Edinger ◽  
...  
Keyword(s):  

2013 ◽  
Author(s):  
Angela Schmitt ◽  
Ruzica Vujasinovic ◽  
Christiane Edinger ◽  
Julia Zillies ◽  
Vilmar Mollwitz

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