Petrology of the "northern granitic rocks" : Wanipigow River area, southeast Manitoba
| dc.contributor.author | Marr, John Munro | en_US |
| dc.date.accessioned | 2012-05-14T18:05:06Z | |
| dc.date.available | 2012-05-14T18:05:06Z | |
| dc.date.issued | 1970 | en_US |
| dc.degree.discipline | Earth Sciences | en_US |
| dc.degree.level | Master of Science (M.Sc.) | en_US |
| dc.description.abstract | The Northern Granitic Rocks comprise a group of leucocratIc to mesocratic, plutonIc rocks which occur immediately to the north of the Rice Lake Greenstone Belt. An area of two hundred square miles has been mapped at a scale of 1:50,000 and several hundred samples have been studied to provide data on mineralogy, texture, specific gravity and chemical composition. This appears to be a group of truly igneous rocks which are intrusive into the rocks of the Rice Lake Greenstone Belt. Compositional variation exists from an area of homogeneous trondhjemite, characterised by a high silica content and a high soda to potash ratio west of Wallace Lake, to more mafic, hornblende-bearing quartz diorites and diorites east of Wallace Lake. Both field relationships and mineralogical characteristics suggest that the Northern Granitic Rocks are synkinematic intrusions. This suite of rocks bears a strong resemblance to the other quartz diorite plutons in the area and to granitic intrusions bordering greenstone belts in many shield areas of the world. | en_US |
| dc.format.extent | ix, 93 leaves : | en_US |
| dc.identifier | ocm72793280 | en_US |
| dc.identifier.uri | http://hdl.handle.net/1993/5831 | |
| dc.language.iso | eng | en_US |
| dc.rights | open access | en_US |
| dc.title | Petrology of the "northern granitic rocks" : Wanipigow River area, southeast Manitoba | en_US |
| dc.type | master thesis | en_US |
| local.subject.manitoba | yes | en_US |
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