FN Archimer Export Format
PT J
TI Olympia Interstadial: vegetation, landscape history, and paleoclimatic implications of a mid-Wisconsinan (MIS3) nonglacial sequence from southwest British Columbia, Canada
BT 
AF HEBDA, Richard J.
   LIAN, Olav B.
   HICOCK, Stephen R.
AS 1:1,2,3;2:4;3:5;
FF 1:;2:;3:;
C1 Royal British Columbia Museum, 675 Belleville St, Victoria, BC V8W 9W2, Canada.
   Univ Victoria, Dept Biol, POB 1700, Victoria, BC V8W 2Y2, Canada.
   Univ Victoria, Sch Earth & Ocean Sci, POB 1700, Victoria, BC V8W 2Y2, Canada.
   Univ Fraser Valley, Dept Geog & Environm, 33844 King Rd, Abbotsford, BC V2S 7M8, Canada.
   Univ Western Ontario, Dept Earth Sci, London, ON N6A 5B7, Canada.
C2 ROYAL BRITISH COLUMBIA MUSEUM, CANADA
   UNIV VICTORIA, CANADA
   UNIV VICTORIA, CANADA
   UNIV FRASER VALLEY, CANA
   UNIV WESTERN ONTARIO, CANADA
IF 0.923
TC 10
UR https://archimer.ifremer.fr/doc/00421/53260/55128.pdf
LA English
DT Article
CR MD 126 / MONA
BO Marion Dufresne
DE ;Pollen;Stratigraphy;Quaternary;Radiocarbon dates;Paleoecology
AB Lithostratigraphic, C-14, and palynologic analyses of peat and silty peat at three nearby sites reveal a 25 000 year vegetation and climate history of the Olympia Interstade for the Fraser Lowland, British Columbia, 300 km within the southern limit of the Cordilleran Ice Sheet. At Lynn Valley, Polypodiaceae fern spores and nonarboreal pollen dominate >47.8 C-14 ka BP, reflecting unstable and cold landscapes. A Pinus-Poaceae zone follows, representing pine parkland and cool dry climate. Fluctuating values of Picea and Tsuga mertensiana pollen at Lynn and Seymour valleys and Port Moody characterize most of the Olympia Interstade during local peat deposition in Cyperaceae and Myrica wetlands until about 26.7 C-14 ka BP under a cool and moist climate. A brief Pinus - Tsuga heterophylla zone at Lynn Valley 44-39 C-14 ka BP suggests a climatic optimum. A Poaceae-Artemisia assemblage and deposition of silty sand after 26.7 C-14 ka BP reflect cooling and drying after which a unique Lycopodium assemblage at Lynn Valley suggests cold arid climate and Fraser Glaciation onset. These sequences have no progression to vegetation typical of warm, interglacial, Holocene-like climates, indicating an interstadial not an interglacial interval. Correlation with vegetation changes elsewhere in western North America suggests that the Olympia Interstade started about similar to 52 C-14 ka BP (similar to 57 cal ka BP) and ended about 26 C-14 ka BP (30 cal ka BP). 
PY 2016
PD MAR
SO Canadian Journal Of Earth Sciences
SN 0008-4077
PU Canadian Science Publishing, Nrc Research Press
VL 53
IS 3
UT 000375941200005
BP 304
EP 320
DI 10.1139/cjes-2015-0122
ID 53260
ER

EF