Brunhes, Matuyama, Kaena and Mammoth age basaltic lava (Selkirk Volcanics - TQS) as
well as interbedded sediments were sampled in west-central Yukon Territory, Canada.
Paleomagnetic sampling of basalt mapped as TQS along a 370 kilometre transect
suggests that early eruptions of TQS occurred coevally over a significant distance to the
north of Fort Selkirk. Basal basalt at Ne Ch'e Ddhawa pre-dates continental glaciation in
Yukon and is older than the Fort Selkirk Vent (Lower Mushroom), previously thought to
be the oldest eruptive vent at Fort Selkirk. The high confining pressures required to form
pillow lava suggest subglacial eruptions at Mushroom section. An Early Pleistocene Fort
Selkirk glaciation sequence (till and outwash) was reversely magnetized and assigned to
the Late Matuyama chron between oxygen isotope stages 62 and 56 inclusive. A lateral
moraine on Ne Ch'e Ddhawa was reversely magnetized and therefore assigned to one of
the younger Pre-Reid glaciations.
i / xi, 123 leaves : ill. (some col.) ; 29 cm.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:ALU.w.uleth.ca/dspace#10133/357 |
| Date | January 2006 |
| Creators | Nelson, Faye Elizabeth, University of Lethbridge. Faculty of Arts and Science |
| Contributors | Barendregt, René |
| Publisher | Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2006, Arts and Science, Department of Geography |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | en_US |
| Detected Language | English |
| Type | Thesis |
| Relation | Thesis (University of Lethbridge. Faculty of Arts and Science) |
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