Kansas Geological Survey, Open-file Report 2019-6

A Report to the Calvert Corporation on the Thickness of Volcanic Ash and Overburden at the Calvert Volcanic Ash Mine, Kansas

by Jon Smith, Anthony Layzell and Alan Peterson

KGS Open File Report 2019-6
April 10, 2019

Introduction

The Kansas Geological Survey (KGS) was first contacted by Mr. Dean F. Kruse (deceased) of the Calvert Corporation in October of 2010 about a possible role for the KGS in helping address exploration issues associated with the Calvert volcanic ash mine located in Norton County, Kansas. The primary concerns for the Calvert Corporation are the variable subsurface thickness of the volcanic ash bed and the increasing thickness and removal costs of overburden in the westward path of current mining operations. To assist the Calvert Corporation with addressing this problem, the KGS was granted permission to drill a long, continuous core from the area of the ash mine by quarry operator Mr. Edward Fowler. In addition, the KGS also agreed to review the results of previous subsurface investigations as provided by Mr. Fowler.

The complete report is available as an Adobe Acrobat PDF file.

• OFR2019-6.pdf (7.3 MB)

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Kansas Geological Survey
Placed online June 19, 2019
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