| Abstract: | Intense faulting and fracturing in the Harris Lake area) northeastern Minnesota are documented by detailed field studies. Faults are identified chiefly by the disruption of mappable layers within sequences of plagioclase and plagioclase-olivine cumulates. Most layers grade from olivine-rich bottoms to plagioclase-rich tops and were probably deposited by density currents. Faults trend principally N35?E, N05?W, and N40?W. The recognition of intense faulting and fracturing in this region and an understanding of the currents responsible for cumulate deposition establish a basic geologic framework with important local and regional implications. |
| Genre: | USGS Numbered Series |
| ProdID: | 8880 |
| Citation Author: | Foose, M. P.; Cooper, Roger W. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | [3], 24 leaves :ill., maps (1 fold. in envelope) ;28 cm.; (27 p., 1 sheet, scale 1:12,000 - PGS) |
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| Citation Publisher: | U.S. Geological Survey, |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 78-385 |
| Citation Search Results Text: | Preliminary geologic report on the Harris Lake area, northeastern Minnesota; 1978; OFR; 78-385; Foose, M. P.; Cooper, Roger W. |
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| Citation Year: | 1978 |
| Type: | citation/reference |
| Text: | Preliminary geologic report on the Harris Lake area, northeastern Minnesota; 1978; OFR; 78-385; Foose, M. P.; Cooper, Roger W. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/of/1978/0385/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/of/1978/0385/report.pdf |
| URL (PLATE): | http://pubs.usgs.gov/of/1978/0385/plate-1.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, |
