Surficial geology, Lefroy Bay (southwest), Nunavut / [Authors: J.E. Campbell and I. McMartin].: M183-1/152-2013E-PDF
"Diverse Quaternary sediments and depositional environments with notable landforms characterise the map area. Till blankets and till veneers are scattered through the area but are dominant above the marine limit. Sand and gravel deposits above the marine limit mainly occur in pro-glacial outwash trains, glaciofluvial aprons/deltas and icecontact landforms (eskers, kames) concentrated in valleys. The marine sequence includes, from the limit of marine incursion to the present-day coastline, thick deposits of deltaic sands and gravels, extensive areas of exposed and gullied clayey silts, marine offlap sands and silts, and sand and gravel littoral sediments. Sand veneers and patches of wave-washed tills are present below the marine limit. Extensive areas of exposed bedrock occur south of Committee Bay. Multiple ice-flow directions indicate a north to northwest flow that predates the dominant northeast then northward flows. Major end moraines (part of the Chantrey Moraine System) are present in the map area with divergent ice-flow directions on either side (northeast versus north). Marine limit elevation drops significantly from about 240 m a.s.l. north of the moraine (Giangioppi, M. et al. 2003) to about 170 m a.s.l. in the south map area suggesting a major stillstand at the Chantrey Moraines during deglaciation"--Abstract.
Permanent link to this Catalogue record:
publications.gc.ca/pub?id=9.858854&sl=0
| Department/Agency | Canada. Natural Resources Canada. Geological Survey of Canada. |
|---|---|
| Title | Surficial geology, Lefroy Bay (southwest), Nunavut / [Authors: J.E. Campbell and I. McMartin]. |
| Series title | Canadian geoscience map ; 152 |
| Publication type | Series - View Master Record |
| Language | [English] |
| Format | Electronic |
| Electronic document |
|
| Note(s) | This record only includes the map and the “Map information document” 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. Includes abstract in French. |
| Publishing information | Ottawa : Natural Resources Canada, 2014. |
| Author / Contributor | Campbell, Janet E. M., 1963- McMartin, Isabelle, 1964- |
| Description | 1 map : col. + 1 map information document ([13] p.). |
| ISBN | 978-1-100-22370-4 |
| Catalogue number |
|
| Departmental catalogue number | 293975 |
| Edition | Preliminary version |
| Cartographic data | Scale 1:100,000 ; Universal Transverse Mercator, zone 14 (W 88°00’--W 87°19'/N 67°38'--N 67°00’) |
| Subject terms | Geological maps Geomorphology Surficial geology |
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: