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Bulletin of the Minnesota Geological and Natural History Survey (1887-2000) >
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| Title: | Bulletin No. 8. I. The Anorthosytes of the Minnesota Coast of Lake Superior; II. The Laccolitic Sills of the North-west coast of Lake Superior |
| Authors: | Lawson, Andrew |
| Keywords: | geology
anorthosite
Minnesota Geological Survey
Bulletin
gabbro
north shore lake superior |
| Issue Date: | 1893 |
| Publisher: | Minnesota Geological Survey |
| Series/Report no.: | Bulletin
8 |
| Abstract: | Among the problems which were named in instructions given to Dr. Lawson when he entered upon the season's work for the Minnesota. Geological and Natural History Survey along the northern coast of lake Superior, one was the following. To determine if possible the date and stratigraphic relations of the gabbro invasion. How well he has answered that question his report on the "Anorthosytes of the Minnesota coast of lake Superior" bears ample testimony. In order, however, that the important bearing which his results have on the geology of the northeastern part of the state, may be made more apparent, it is deemed best to preface this publication with a short exposition of the history of the investigation, and a few paragraphs on the extent of the gabbro rocks and on the significance of the term gabbro. |
| Permanent URL: | http://purl.umn.edu/56344 |
| Appears in Collections: | Bulletin of the Minnesota Geological and Natural History Survey (1887-2000)
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| MGS_B_08.pdf | | 16511Kb | PDF | View/Open |
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