Report 278: 1988; Report 278: 1991; Archean Drill Core Description and Assay in Lake of the Woods County, Minnesota

This slideshow requires the latest version of
Adobe Flash Player

Project Funded by the Minerals Coordinating Committee Through the Mineral Diversification Program

Preface extracted from Report 278:

PREFACE  The Minnesota Department of Natural Resources (MDNR), Minerals Division, maintains a Drill Core Library at its Hibbing, Minnesota office. This facility is the repository for 5,059 drill holes totaling 1,625,888 feet of drill core or cuttings from iron, base and precious metal exploration in Minnesota. Exploration holes were drilled on evidence of inferred mineralization. But are there other clues to mineralization in these cores?

By necessity, available evaluations have been limited and perhaps narrowly focused. For a 21 township area in southern Lake of the Woods County, all 43 available drill cores (and one additional adjacent core) were logged with 205 samples analyzed. In addition, other projects conducted overburden drilling in this same area, and aeromagnetic data from a portion of this area was used to produce a pseudo-geologic map.

1. View or download report:

Report 278: Report 278: 1991; Archean Drill Core Description and Assay in Lake of the Woods County, Minnesota; discussion and analysis of 45 drill cores from T157N R33W & 34W, T158N R33W & 34W, T159N R33W & 36W, T160N R31W & 36W This is a PDF file. You will need Adobe Acrobat Reader to download it.
(189 pages, 8.5 x 11 inches, Large File Size 8.3 MB)
Authors: B.A. Frey and E. A. Venzke

Please note: Best results in viewing this report will be obtained by saving the file to a location of your choice and opening with Adobe Reader or Acrobat. Some report information may not display as a result of opening with Acrobat directly from a web browser.

This report has been scanned in and applied with optical character recognition (OCR) which electronically translates the scanned image printed text into machine-encoded text. This allows users to then
search the document by keywords in Adobe Reader or Acrobat software.

2. Download GIS data:

The following zip file contains data for 205 samples extracted from sixty-five drill holes described in the Minnesota Department of Natural Resources (MnDNR), Division of Land and Minerals Report, “Archean Drill Core Description and Assay in Lake of the Woods County, Minnesota Report 278,” published in 1988.   Each folder in the zip file contains data from the report in a different format.  The data is presented in its original Lotus data files, a Microsoft Access database, dBase IV files, and ArcGIS File Geodatabase.  

For more information:

Dennis Martin
500 Lafayette Road
St. Paul, Minnesota 55155-4045
tel. (651) 259-5405
fax (651) 296-5939
dennis.martin@state.mn.us

Disclaimer and Copyright Protection: Maps, Reports, Data, and Other Information - 
The State of Minnesota makes no representations or warranties express or implied, with respect to the use of the information contained herein regardless of its format or the means of its transmission. There is no guarantee or representation to the user as to the accuracy, currency, suitability, completeness, usefulness, or reliability of this information for any purpose. The user accepts the information “as is." The State of Minnesota assumes no responsibility for loss or damage incurred as a result of any user’s reliance on this information. All maps, reports, data, and other information contained herein are protected by copyright. Permission is granted to copy and use the materials herein for any lawful noncommercial purpose. Any user of this information agrees not to transmit or provide access to all or any part of this information to another party unless the user shall include with the information a copy of this disclaimer.