| Title | Neoglacial History of the Coast Mountains near Bella Coola, British Columbia |
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| Author | Desloges, J R; Ryder, J M |
| Source | Canadian Journal of Earth Sciences vol. 27, no. 2, 1990 p. 281-290, https://doi.org/10.1139/e90-027 |
| Year | 1990 |
| Publisher | Canadian Science Publishing |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Province | British Columbia |
| NTS | 93C/SW; 93D/SE; 92N/15 |
| Area | Bella Coola |
| Lat/Long WENS | -127.0000 -125.5000 52.5000 51.7500 |
| Subjects | stratigraphy; surficial geology/geomorphology; geochronology; glaciers; moraines; ice movement; dendrochronology; glacial features; glacial deposits; radiocarbon dates; radiometric dates; holocene;
stratigraphic analyses; drainage; neoglaciation; geochronometry; Cordillera; Quaternary |
| Illustrations | photographs; sketch maps; tables |
| Abstract | The maximum Holocene extent of glaciers in the study area is marked by late Neoglacial (Little Ice Age) terminal moraines. Moraine stratigraphy and 14C dates from a small number of sites suggest that
glacier advance, almost as extensive as that of the late Neoglacial, occurred about 2500 14C years BP, and that late Neoglacial advance began well before 770 14C years BP (or the thirteenth century A.D.); glacier termini then stood close to the
position of the climax moraines for several centuries. Dates of stabilization of end moraines at 16 glaciers were determined by dendrochronology, with tree-ring counts corrected for sampling errors and ecesis. Most terminal moraines date from 1860 to
1900. Many recessional moraines were formed between 1900 and 1940, coincident with a regionally documented phase of cooler and wetter climate. The proposed chronology is similar to results from elsewhere in the Canadian Cordillera. |
| GEOSCAN ID | 5411 |
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