MINFILE Mineral Inventory

MINFILE Record Summary

MINFILE No 092GSE025

File Created:	24-Jul-1985	by	BC Geological Survey (BCGS)
Last Edit:	02-Jan-1990	by	Laura L. Duffett (LLD)

SUMMARY

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		NMI
Name	BURNABY LAKE DIATOMITE	Mining Division	New Westminster
		BCGS Map	092G026
Status	Showing	NTS Map	092G02W
Latitude	049º 14' 37''	UTM	10 (NAD 83)
Longitude	122º 56' 47''	Northing	5454539
		Easting	503902
Commodities	Diatomite	Deposit Types	F06 : Lacustrine diatomite
Tectonic Belt	Coast Crystalline	Terrane	Overlap Assemblage

Capsule Geology

Burnaby Lake, located in central Burnaby, is a crescent shaped lake about 4.0 kilometres long and about 0.8 kilometres wide. The bottom of the lake is covered with up to 7.6 metres of diatomaceous mud. This deposit is similar to the Trout Lake deposit (092GSW016).

The calcined material is pink to buff in colour, with appreci- able amounts of ash and fine grit. Small cylindrical Melosira dia- toms predominate.

Careful treatment of the top 1.8 to 2.4 metres of diatomaceous mud should yield an efficient sugar filter aid, once the grit has been removed.

In 1932, a few tonnes of mud were excavated from Burnaby Lake by Coast Quarries Limited. About one tonne was shipped to the Mines Branch, Ore Dressing Laboratories, in Ottawa for treatment.


Bibliography	EMPR AR 1920-219; *1947-211 GSC MAP 1069A; 1151A; 1386A GSC MEM 335 GSC P 90-1F, pp. 95-107 Armstrong, J.E. (1990): Vancouver Geology, Geological Association of Canada (Cordilleran Section) Ditson, G.M. (1978): Metallogeny of the Vancouver-Hope Area, British Columbia, M.Sc. Thesis, University of British Columbia EMPR PFD 8237