Prehistoric debris avalanches from Mount Cayley volcano, British Columbia

1991 ◽  
Vol 28 (9) ◽  
pp. 1365-1374 ◽  
Author(s):  
S. G. Evans ◽  
G. R. Brooks
Keyword(s):  
British Columbia ◽  
Economic Development ◽  
Public Safety ◽  
Debris Avalanches ◽  
Western Flank ◽  
Historic Time ◽  
Volcanic Debris ◽  
Upper Slope

An investigation of diamicton units exposed in an extensive accumulation of volcanic debris in the Squamish valley, west of Mount Cayley volcano, has yielded evidence for at least three major debris avalanches, initiated by the collapse of the western flank of Mount Cayley in the mid-Holocene. Radiocarbon ages obtained from tree fragments contained in the deposits indicate that the events took place at 4800, 1100, and 500 BP. All three debris avalanches dammed the Squamish River and formed temporary lakes upstream of the debris. Failure of the cone took place after considerable dissection of the original edifice had exposed weak pyroclastic materials at the base of the steep upper slope of the volcano. No evidence of older debris avalanches from Mount Cayley has been discovered. Smaller scale debris avalanches probably have been common, and at least two have occurred in historic time (1963 and 1984). Debris avalanches from Mount Cayley and the effects of a possible damming of the Squamish River are major geomorphic hazards to public safety and economic development in the Squamish valley.

Volcanic debris avalanches

2015 ◽  
pp. 139-164
Author(s):  
Benjamin van Wyk de Vries ◽  
Audray Delcamp
Keyword(s):  
Debris Avalanches ◽  
Volcanic Debris

Second Growth: Community Economic Development in Rural British Columbia

2005 ◽  
Vol 38 (4) ◽  
pp. 1067-1068
Author(s):  
Andrew Molloy
Keyword(s):  
British Columbia ◽  
Economic Development ◽  
Community Development ◽  
Small Town ◽  
Local Level ◽  
Empirical Studies ◽  
Action Learning ◽  
Small Time ◽  
Community Economic Development ◽  
Second Growth

Second Growth: Community Economic Development in Rural British Columbia, Sean Markey, John Pierce, Mark Roseland and Kelly Vodden, Vancouver: University of British Columbia Press, 2005, pp. 352.This theoretically rich, community economic development (CED) work, written by four members of the Centre for Sustainable Community Development (formerly the Community Economic Development Centre) at Simon Fraser University, is the product of a three-year participatory-action-based research project involving four “forest-based” British Columbia communities. Two Aboriginal communities and two municipalities were case studied as part of an action-learning exercise in order to gain “insight into the apparent conflict between the economic imperative and fluidity of capital versus the lived worlds of rural and small time places” (3). Through their empirical studies of the four communities, the authors argue that CED, fostered at the local level, can allow for the kind of capacity building that is needed to create diversified, sustainable economic futures for resource-based rural and small-town communities. They are careful, however, to distinguish between the use of CED as a “localized and palliative strategy” for marginalized communities caught in the throes of political and economic dependency, and the possibilities for a more robust (theoretically balanced) version of CED, which can become part and parcel of rural and small-town locally-based planning and development. While recognizing the appropriateness of CED in either situation, they argue that a host of negative economic and political factors, which are intensifying under the direction of neo-liberal ideological thinking, have resulted in a pressing need for the more robust form of community development and corresponding revitalization strategies.

scholarly journals Longitudinal downsizing of hummocks by the freely-spreading volcanic debris avalanches in Japan

2010 ◽  
Vol 49 (2) ◽  
pp. 55-67 ◽  
Author(s):  
Hidetsugu Yoshida ◽  
Toshihiko Sugai ◽  
Hiroo Ohmori
Keyword(s):  
Debris Avalanches ◽  
Volcanic Debris

Maintaining accountability between levels of governance in Indigenous economic development: Examples from British Columbia, Canada

2018 ◽  
Vol 61 (4) ◽  
pp. 523-549 ◽  
Author(s):  
Ngaio Hotte ◽  
Harry Nelson ◽  
Tim Hawkins ◽  
Stephen Wyatt ◽  
Robert Kozak
Keyword(s):  
British Columbia ◽  
Economic Development

A debris flow triggered by the breaching of a moraine-dammed lake, Klattasine Creek, British Columbia

1985 ◽  
Vol 22 (10) ◽  
pp. 1492-1502 ◽  
Author(s):  
John J. Clague ◽  
S. G. Evans ◽  
Iain G. Blown
Keyword(s):  
British Columbia ◽  
Debris Flow ◽  
Debris Flows ◽  
Southern Coast ◽  
Coast Mountains ◽  
Debris Avalanches ◽  
Unconsolidated Sediment ◽  
Sudden Release ◽  
Dammed Lake ◽  
Unusual Origin

A very large debris flow of unusual origin occurred in the basin of Klattasine Creek (southern Coast Mountains, British Columbia) between June 1971 and September 1973. The flow was triggered by the sudden release of up to 1.7 × 106 m3 of water from a moraine-dammed lake at the head of a tributary of Klattasine Creek. Water escaping from the lake mobilized large quantities of unconsolidated sediment in the valley below and thus produced a debris flow that travelled in one or, more likely, several surges 8 km downvalley on an average gradient of 10° to the mouth of the stream. Here, the flow deposited a sheet of coarse bouldery debris up to about 20 m thick, which temporarily blocked Homathko River. Slumps, slides, and debris avalanches occurred on the walls of the valley both during and in years following the debris flow. Several secondary debris flows of relatively small size have swept down Klattasine Creek in the 12–14 years since Klattasine Lake drained.

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