Portions of Atlin District, British Columbia: with special reference to lode mining

1913 ◽  
Author(s):  
D D Cairnes
Keyword(s):  
British Columbia ◽  
Special Reference

Fluid Injection and Seismic Activity in the Northern Montney Play, British Columbia, Canada, with Special Reference to the 17 August 2015Mw 4.6 Induced Earthquake

2017 ◽  
Vol 107 (2) ◽  
pp. 542-552 ◽  
Author(s):  
Alireza Babaie Mahani ◽  
Ryan Schultz ◽  
Honn Kao ◽  
Dan Walker ◽  
Jeff Johnson ◽  
...  
Keyword(s):  
British Columbia ◽  
Special Reference ◽  
Seismic Activity ◽  
Fluid Injection ◽  
Induced Earthquake

Urban landslides in the vicinity of Vancouver, British Columbia, with special reference to the December 1979 rainstorm

1981 ◽  
Vol 18 (2) ◽  
pp. 205-216 ◽  
Author(s):  
G. H. Eisbacher ◽  
J. J. Clague
Keyword(s):  
British Columbia ◽  
Special Reference ◽  
Urban Areas ◽  
Debris Flows ◽  
Unconsolidated Sediments ◽  
Runoff Water ◽  
Protective Measures ◽  
Local Newspapers ◽  
Debris Avalanches ◽  
Autumn And Winter

Historical landslides in the urbanized Vancouver region, southwestern British Columbia, have almost commonly occurred along escarpments within and at the margins of gently rolling upland surfaces underlain by Pleistocene unconsolidated sediments. The most common and most destructive landslides are debris avalanches and debris flows. They are triggered by intense autumn and winter rainstorms, when water infiltrates and saturates the surficial layer of weathered colluvium. After failure the veneer of debris gains momentum and picks up additional soil and uprooted vegetation. Debris avalanches may temporarily block gullies swollen with runoff water, thus changing into rapidly moving debris flows.A severe rainstorm in December 1979 was accompanied by destructive debris avalanches and debris flows in urban areas in the vicinity of Vancouver. A search of local newspapers and meteorological records back to 1900 indicates that this event was not unique, for at least 26 other comparable storms have triggered landslides in the Vancouver region during this century. Thus it is likely that landslides similar to those of December 1979 will occur repeatedly in the future. The danger of such landslides to life and property will grow if potentially hazardous sites are urbanized without appropriate protective measures.

REVIEW OF TULARAEMIA IN BRITISH COLUMBIA, WITH SPECIAL REFERENCE TO A RECENT HUMAN CASE

1936 ◽  
Vol 68 (6) ◽  
pp. 121-124
Author(s):  
T. K. Moilliet
Keyword(s):  
British Columbia ◽  
North America ◽  
Special Reference ◽  
Human Case ◽  
Widespread Distribution

Since its discovery in rodents by McCoy3 in California in 1911, tularaemia has been found to have a widespread distribution in North America. The same year it was described by Pearsd12 as an insect-borne disease. Francis1. in 1919- 1920 correlated these two manifestations and to him we owe most of our knowledge of the disease. It is now known to be contracted by man either by contact with infected animals or by the bites of flies or ticks which have become carriers through biting diseased rodents prior to attacking man, or even from the excreta of these insects.

Cambrian Lagerstätten: their distribution and significance

1985 ◽  
Vol 311 (1148) ◽  
pp. 49-65 ◽  
Keyword(s):  
British Columbia ◽  
Special Reference ◽  
Community Ecology ◽  
Lower Cambrian ◽  
South Australia ◽  
Burgess Shale ◽  
Middle Cambrian ◽  
Upper Cambrian ◽  
Exceptional Preservation ◽  
Biotic Diversity

The geological setting, biotic diversity and taphonomy of Cambrian soft-bodied Lagerstätten are reviewed with special reference to the Lower Cambrian Emu Bay Shale (South Australia) and Kinzers Formation (Pennsylvania), and the Middle Cambrian Stephen Formation (Burgess Shale and adjacent localities, British Columbia). Brief mention is made also of a number of more minor occurrences in the U.S.A., China and Spain. Exceptional preservation in the Upper Cambrian is discussed by K. J. Müller (this symposium). These soft-bodied Lagerstätten afford a series of special insights into the nature of Cambrian life. Emphasis is laid on the information they provide with regards (i) levels of diversity and the proportion of skeletized taxa; (ii) the origin and relative success of bodyplans; (iii) community ecology and evolution.

LATE-QUATERNARY FOSSIL CHIRONOMIDAE (DIPTERA) FROM HIPPA LAKE, QUEEN CHARLOTTE ISLANDS, BRITISH COLUMBIA, WITH SPECIAL REFERENCE TOCORYNOCERAZETT.

1988 ◽  
Vol 120 (8-9) ◽  
pp. 739-751 ◽  
Author(s):  
Ian R. Walker ◽  
Rolf W. Mathewes
Keyword(s):  
British Columbia ◽  
Special Reference ◽  
Climatic Change ◽  
North American ◽  
Late Quaternary ◽  
Glacial Refugium ◽  
Coastal Lakes ◽  
Queen Charlotte Islands ◽  
Early Arrival

AbstractChironomid stratigraphic analyses of sediment from Hippa Lake, Queen Charlotte Islands, B.C., revealed a fossil chironomid record unlike that reported for deeper lakes of southwestern British Columbia, but similar to an arctic Alaskan sequence. Little evidence of trophic succession or climatic change was noted.Chironomids, includingCorynoceranr.ambiguaZett., rapidly colonized the lake. Because the known adults ofCorynoceraZett. are brachypterous, the early arrival ofC. nr.ambiguaat Hippa Lake suggested either that this species survived in a Queen Charlotte glacial refugium, that chironomids can disperse very rapidly, even without active flight, or the existence of a previously undescribedCorynoceraspecies with well-developed wings.Elsewhere, fossils of theC.ambiguagroup are commonly associated with fossil oospores ofCharaValliant andNitellaAgardh. North American records are inconsistent, although similar correlations existed in some coastal lakes of British Columbia.

Modes of life of arthropods from the Burgess Shale, British Columbia

1985 ◽  
Vol 76 (2-3) ◽  
pp. 149-160 ◽  
Author(s):  
D. E. G. Briggs ◽  
H. B. Whittington
Keyword(s):  
British Columbia ◽  
Special Reference ◽  
Burgess Shale ◽  
Middle Cambrian ◽  
Morphological Adaptations ◽  
Filter Feeders ◽  
Modes Of Life ◽  
Deposit Feeding

ABSTRACTThe modes of life of twenty three species of arthropods from the Shale are reviewed, with special reference to locomotion and feeding. Six groups are recognised, predatory and scavenging benthos, deposit-feeding benthos, scavenging and possibly predatory nektobenthos, deposit-feeding and scavenging nektobenthos, nektonic filter-feeders, and a miscellaneous sixth group that includes a questionable example of parasitism and a species that doubtfully grazed on algae. These animals had but limited powers of walking, digging, raking or swimming. Within these limitations a range of morphological adaptations and modes of feeding had been evolved, by Middle Cambrian time, a range comparable to that found in Recent marine forms. Arthropods in the Shale dominated, in numbers of individuals and possibly in biomass, a fauna dwelling above, on and in a muddy substrate at a depth of about 100 m.

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