Thickness records of glacial Lake Ojibway varves from Duparquet and Dufresnoy lakes, northwestern Quebec / G.R. Brooks.: M183-2/8360E-PDF
"The thicknesses of 537 and 387 rhythmic couplets were measured along composite sequences of glacial Lake Ojibway glaciolacustrine deposits recovered in cores from Duparquet and Dufresnoy lakes, Quebec, respectively. The couplets span varve numbers 1137 to 1742 (Lac Duparquet) and 1189 to 1625 (Lac Dufresnoy) with respect to the Timiskaming varve series. Erosional unconformities (or disconformities) below v1484 cause 51 and 47 varves to be ‘missing’ in both the Duparquet and Dufresnoy varve records, respectively. Error in the varve numbering relative to the Timiskaming varve series is estimated to be ±2 varves. Varve thickness data for each lake are listed in separate digital spreadsheet files (.xlsx and .csv formats). Mosaic posters depict CT-Scanner radiograph images of each set of lake cores and show the interpreted varve numbering and the between-coring-site correlations of the varve couplets"--Abstract.
Permanent link to this Catalogue record:
publications.gc.ca/pub?id=9.859087&sl=0
| Department/Agency | Canada. Natural Resources Canada. Geological Survey of Canada. |
|---|---|
| Title | Thickness records of glacial Lake Ojibway varves from Duparquet and Dufresnoy lakes, northwestern Quebec / G.R. Brooks. |
| Series title | Open file ; 8360 |
| Publication type | Series - View Master Record |
| Language | [English] |
| Format | Electronic |
| Electronic document |
|
| Note(s) | This record only includes the Open File in PDF. The complete data set with all the files in various formats is available for free download at http://geoscan.nrcan.gc.ca/. Includes bibliographical references. |
| Publishing information | [Ottawa] : Natural Resources Canada, 2018. |
| Author / Contributor | Brooks, Gregory Robert, 1958- |
| Description | 15 p. : chart, col. ill., maps + 2 appendices. |
| Catalogue number |
|
| Departmental catalogue number | 306623 |
| Subject terms | Varves Québec (Province) Measurement |
Request alternate formats
To request an alternate format of a publication, complete the Government of Canada Publications email form. Use the form’s “question or comment” field to specify the requested publication.- Date modified: