NGR Open Files

Archived information

The database from which the NGR Open File metadata was extracted is unilingual and is not being actively maintained.  It contains information that is not readily available elsewhere.

Open File 1636

Open File:  1636
Previous OF publication(s):  0513, 0558
Province / Territory:  Newfoundland & Labrador
Funding Source:  Federal and Provincial
Year of Collection:  1977

Survey Type:  Regional Lake Survey
# Lake sites:  0
# Stream sites:  0
Survey Area:  17000 km²
NTS Sheet(s):  013I, 013J,013K, 013N, 013O

The regional lake survey for eastern Labrador (parts of NTS 13I, 13J,13K, 13N and 13O) was conducted during the summers of 1977, 1978 and 1983.

This report presents revised data for gold and 25 other elements obtained by re-analyzing lake sediments collected at an average density of one sample per 13 km². Original analytical data selected from Open Files 513, 558 and 997 for up to 16 elements plus loss-on-ignition in sediments, and uranium, fluoride, and pH values in concomitant waters are also included in this report.

Analytical Data

variablemethoddetection limityear of analysis
AntimonyAAS0.2 ppm1977
AntimonyINAA0.1 ppm1988
ArsenicAAS1 ppm1977
ArsenicINAA0.5 ppm1988
BariumINAA50 ppm1988
BromineINAA0.5 ppm1988
CadmiumAAS0.2 ppm1977
CeriumINAA5 ppm1988
CesiumINAA0.5 ppm1988
ChromiumINAA20 ppm1988
CobaltAAS2 ppm1977
CobaltINAA5 ppm1988
CopperAAS2 ppm1977
EuropiumINAA1 ppm1988
FluorineISE40 ppm1977
GoldINAA2 ppb1988
HafniumINAA1 ppm1988
IronAAS0.02 pct1977
IronINAA0.2 pct1988
LanthanumINAA2 ppm1988
LeadAAS2 ppm1977
Loss-on-ignitionGRAV1 pct1977
LutetiumINAA0.2 ppm1988
ManganeseAAS5 ppm1977
MercuryAAS10 ppb1977
MolybdenumAAS2 ppm1977
MolybdenumINAA1 ppm1988
NickelAAS2 ppm1977
NickelINAA20 ppm1988
RubidiumINAA5 ppm1988
SamariumINAA0.05 ppm1988
Sample WeightGRAV0.01 gms1988
ScandiumINAA0.2 ppm1988
SilverAAS0.2 ppm1977
SodiumINAA0.02 pct1988
TantalumINAA0.5 ppm1988
TerbiumINAA0.5 ppm1988
ThoriumINAA0.2 ppm1988
TungstenINAA1 ppm1988
UraniumNADNC0.5 ppm1977
UraniumINAA0.2 ppm1988
VanadiumAAS5 ppm1977
YtterbiumINAA2 ppm1988
ZincAAS2 ppm1977
variablemethoddetection limityear of analysis
FluorideISE20 ppb1977
UraniumFT0.01 ppb1977
UraniumLIF0.05 ppb1983
pHGCM 1977


The original reconnaissance surveys were carried out by the Geological Survey of Canada in conjunction with the Newfoundland Department of Mines and Energy under the terms of the Canada - Newfoundland Agreement on a Uranium Reconnaissance Program (1976 - 1982) and Canada - Newfoundland Cooperative Mineral Program (1984 - 1989).

Analyses of remaining archive samples were undertaken under the Canada - Newfoundland Mineral Development Agreement (1984 - 1989).

E.H.W. Hornbrook directed the survey and archived analysis program.

P.W.B. Friske coordinated the operational activities of contract and Geological Survey of Canada staff.

M. McCurdy and H.R. Schmitt coordinated and edited open file production.

A.C. Galletta and D. Wright managed the digital geochemical data, provided computer processing support and developed software to plot the open file symbol and regional trend maps.

Computing services provided by the Computer Science Centre, EMR.

The plotting was done by Canada Lands Data Systems staff at Environment Canada, Hull, Quebec.

H. Gross developed microcomputer software to produce data listings and summary statistics.

J.Yelle and F. Williams of the Geological Information Division supervised the preparation of the open file base maps by Cartography Unit A-2.

M. McCurdy, S. Cook, C.C. Durham, M.A. Blondin and A.A. Mills-McCurdy provided technical support and editing assistance.

Contractor and supervisor details for sample collection
CategoryResponsible Party
Contractor:Marshall Macklin Monaghan, Toronto, Ontario
Supervisor:E.Hornbrook, Y.T. Maurice, N.G. Lund (GSC)
Contractor and supervisor details for sample preparation
CategoryResponsible Party
Contractor:Golder Associates, Ottawa, Ontario
Supervisor:J.J. Lynch (GSC)
Contractor and supervisor details for sample preparation
CategoryResponsible Party
Contractor:(1988 -sediments) Bondar-Clegg & Company Ltd., Ottawa, Ontario (1977/1978/1983 -sediments) Chemex Labs, Ltd. Vancouver, British Columbia (1977/1978 -U) Atomic Energy of Canada Ltd., Ottawa, Ontario (1977/1978 -waters) Barringer Magenta Limited, Toronto, Ontario (1983 -waters) Acme Analytical Laboratories, Vancouver, British Columbia
Supervisor:J.J. Lynch (GSC)

Other information:

Previous Open Files: 513, 558 and 997

Q. Sb Analysis in 77/78/83 must be AAS and not INAA?

Date modified: