| Title | Reconnaissance sub-bottom profiling survey at Lac Opasatica, Quebec |
| Download | Downloads |
| Author | Brooks, G R |
| Source | Geological Survey of Canada, Open File 7984, 2016, 19 pages, https://doi.org/10.4095/297464 (Open Access) |
| Year | 2016 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Media | on-line; digital |
| Related | For all publications in this survey, see the following publications |
| File format | readme
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| File format | pdf; bmp; rtf |
| Province | Quebec |
| NTS | 32D/03; 32D/06 |
| Area | Lac Opasatica |
| Lat/Long WENS | -79.5333 -79.2000 48.3500 48.0000 |
| Subjects | sedimentology; surficial geology/geomorphology; lakes; lake sediments; lake sediment geochemistry; lake sediment thickness; lacustrine deposits; lacustrine environments; glaciolacustrine deposits;
sediment transport |
| Illustrations | location maps; profiles; tables |
| Program | Western Canada Geohazards Project, Public Safety Geoscience |
| Released | 2016 01 12 |
| Abstract | As a part of reconnaissance sub-bottom acoustic profiling (SAP) survey on Lac Opasatica, Quebec, 19 SAP were collected from the northern bay area and 27 SAP were collected within Baie Lamy on July 15
and 18, 2014, respectively. Good penetration of the sub-bottom was obtained in most of the two profiled areas. Three facies can be identified within the SAP returns that represent lacustrine, glaciolacustrine and mass movement deposits. The profiles
collected from Lac Opasatica demonstrate the widespread presence of mass movement deposits within this basin. Baie Lamy is the better location for any follow-up detailed profiling and core collection because of water depths that are generally
shallower than the northern bay. |
| Summary | (Plain Language Summary, not published)
This report is one of eight that are being released concurrently. All contain the results of geophysical surveys of the bed of a selected lakes in the
area of Rouyn-Noranada-Kirkland Lake, Quebec-Ontario. The results from some of the lakes show evidence of ancient landslides that occurred in a large glacial lake. These results will be used in a study that is investigating whether the landslides
were triggered by an ancient earthquake. |
| GEOSCAN ID | 297464 |
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