Geoscience BC Releases East Kootenay Gravity Database
December 3, 2012 -Geoscience BC is pleased to announce the release of Report 2012-12 "Stimulating Exploration in the East Kootenays (SEEK Project): East Kootenay Gravity Database" .
The report is now available for download through Geoscience BC's website at www.geosciencebc.com/s/DataReleases.asp.
Geoscience BC Report 2012-12 by T. Sanders This report describes a collection of ground station gravity data. The majority of gravity data in the database was obtained from data listings in assessment reports on the Mineral Titles Online ARIS (Assessment Report Indexing System) website. Other sources include: contributed data from gravity surveys not presently available on the ARIS website, a subset of the Geological Survey of Canada (GSC) database, and a digitized Bouguer Anomaly posting map (obtained from an ARIS file which did not contain raw data).
All of the original gravity data listings in the ARIS PDF files include Bouguer Anomaly values for each station. However, Bouguer Anomaly values from different contractors used different data reduction formulae and parameters. Some processing errors were also detected in the raw data listings. As a result, leveling adjustments have been made to some of the ARIS GPS survey data, Observed Gravity values, and Bouguer Anomaly data prior to reprocessing and the creation of a uniform Gravity Database. In addition, 30 km Outer Terrain Corrections were calculated for each station as part of data reduction to Bouguer Anomaly values in the database.
This project enables users to download digital (.csv) files of the original ARIS gravity data listings and raw Inner Terrain Correction data. In addition, the complete database (27 fields) of levelled and reprocessed gravity data can be downloaded and includes raw and reduced Bouguer Anomaly values for all stations using three rock densities.
The East Kootenay ground station Gravity Database is a component of the SEEK (Stimulating Exploration in the East Kootenays) project. This project is funded by Geoscience BC and is a partnership with the East Kootenay Chamber of Mines.
For more information on the SEEK Project, go to www.geosciencebc.com/s/Seek.asp.
Geoscience BC is an industry-led, industry-focused not-for-profit society. Its mandate includes the collection, interpretation and marketing of geoscience data and expertise to promote investment in resource exploration and development in British Columbia. Geoscience BC is funded through grants from the Provincial Government and works in partnership with industry, academia, government, First Nations and communities to attract mineral and oil & gas investment to BC.