Publication information

Geological Survey of Canada
Open File 7513

Quaternary unconsolidated sediment thickness on the Grand Banks of Newfoundland and Northeast Newfoundland Shelf; a GIS database

Edward (Ned) L. King

© Her Majesty the Queen in Right of Canada, as represented by the Minister of Natural Resources Canada, 2014

doi:10.4095/295113

Publications in this series have not been edited; they are released as submitted by the author.

View the licence agreement at http://data.gc.ca/eng/open-government-licence-canada

Recommended citation

King, E.L., 2014. Quaternary unconsolidated sediment thickness on the Grand Banks of Newfoundland and Northeast Newfoundland Shelf, a GIS database; Geological Survey of Canada, Open File 7513, 1 .zip file.  doi:10.4095/295113

Contents

This spatial database is in the form of spot thicknesses along survey tracks and thickness-classed zonation interpolated from these points. It comprises over 85 000 point thickness entries, each identifying the stratigraphic unit (or range in units) measured, a code linking to the raw data source, thickness in metres and milliseconds, notes on the source of interpretation and the process and positional accuracy, and generally the stratigraphic unit underlying the sediment at that position. Most records document only the total Quaternary thickness. A total Quaternary thickness zonation map (polygons/contours in six thickness classes) adds considerable interpretive value to the spot thickness measurements. Control for extrapolation and interpolation of the spot thicknesses came from bathymetric shaded relief images (mainly low resolution) where, for example, basins, valleys and ridges, near-seabed bedrock expression and other morphological elements helped provide spatial control for sediment thickness distribution.

This product contains maps, data and documents with associated metadata). The map is provided in several digital formats including ArcGISTM projects (mxd) in versions 10 and 10.1 and an Adobe® file (pdf).  The primary product is a vector-based Geographic Information System (GIS) available as an ESRI® file geodatabase in version 10.1 and as shapefiles with the aim to satisfy a wider range of users. The pdf format is limited in sediment thickness display capabilities compared to the GIS product but does have interactive toggle-enabled layering.

The GIS product is organized in file geodatabase. Contents of the various feature classes in the file geodatabase are shown below.

Directory structure

Adobe®, Acrobat®, and Reader® are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States and/or other countries.

ESRI®, ArcExplorer™ and ArcReader™ are trademarks, registered trademarks, or service marks of ESRI® in the United States, the European Community, or certain other jurisdictions.

System requirements

PC with 486 or greater processor, or Mac® with OS® X v. 10.2.2 or later; Adobe® Reader® v. 6.0 or later; video resolution of 1280 x 1024.

Author contact information

Edward (Ned) King (eking@nrcan.gc.ca; Edward.King@nrcan.gc.ca)
Geological Survey of Canada
1 Challenger Drive
P.O. Box 1006
Dartmouth, Nova Scotia
Canada B2Y 4A2

Availability information

This publication is available for free download through GEOSCAN (http://geoscan.nrcan.gc.ca/).