Survey Metadata

Till

New Brunswick

1993

Till sampling survey, NTS 21P/4, northern New Brunswick, 1993.





Location map

(requires an Internet connection)




Survey Description


During the summer of 1993, 124 sites were sampled for till in the Sevogle area, northern New Brunswick.  Till samples weighing about 2.5 kg each were taken approximately 55 cm below the surface along the top of the C-horizon or at the BC transition.  Compact basal till was sampled, but in some areas, only loose ablation till was available.  Pebbles (100 at each site) were also collected.  The data are published in New Brunswick Department of Natural Resources and Energy Open File 99-3 and on Map Plates 99-6, 99-7, 99-8 and 99-9 which accompany the report.

Data Description:

Paper report with data lists.  Data diskette available.

Quantities Analysed:

<0.063 mm fraction analyzed by INAA and XRF for 38 trace elements.

Geochem Maps Available:

Proportional dot maps showing dispersal of elements in till.

Other Analyses:

Pebble counts.

Sampling Procedure

A 4 km2 grid was established for the study area, and sample sites, located at the center of each square comprising the established grid, were identified.  However, prior to the commencement of fieldwork, air photos were examined and many sample sites had to be relocated, if material was not till. A total of 124 sites were sampled.  Compact basal till was sampled, but in some areas, only loose ablation till was available for sampling.  No other sediment type was sampled for geochemical analyses.  As much as possible, washed till was not sampled in the glaciolacustrine or estuarine basin.

Samples were generally taken approximately 55 cm below the surface along the top of the C-horizon or at the BC transition.  Till samples, weighing about 2.5 kg, and one hundred pebbles, were collected at each site for clast dispersal/pebble count studies.

Publication History

Index Publication
1 Parkhill, M.A. (1994). Surficial geology and till geochemistry in northern New Brunswick: summary of projects and current database. In Current Research 1993. S.A.A. Merlini (compiler and ed.). New Brunswick Department of Natural Resources and Energy, Minerals and Energy, Miscellaneous Report 12, p. 129-146. (more)
2 Parkhill, M.A. (1997). Surficial geology and till geochemistry in northern New Brunswick: summary of ExTech-II projects and current database. In Current Research 1996. B.M.W. Carroll (ed.). New Brunswick Department of Natural Resources and Energy, Minerals and Energy Division, Mineral Resource Report 97-4, p.201-233. (more)
3 Doiron, A., Boisvert, É. (1999). Till geochemistry of the Sevogle area (NTS 21 P/04, west half), Northumberland and Gloucester counties, New Brunswick. New Brunswick Department of Natural Resources and Energy, Minerals and Energy Division, Open File 99-3, 139 p. (more)

Project History

Index Year Project
1 1990-1999 North central New Brunswick till sampling surveys carried out in 1990-1993 (more)

Geographic Extent

Minimum Latitude Maximum Latitude Minimum Longitude Maximum Longitude
47° 47.25° -66° -65.75°

The geographic extent of the survey is defined by the following polygons:

  • Covers the west half of NTS 21P/4 (Sevogle), northern New Brunswick.  It includes parts of Northumberland and Gloucester counties.  The study area excludes the Big Hole Tract Indian Reserve 8.

Keywords


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