The GeologyOntario (includes OGSEarth) web pages will be updated with a new look in the coming weeks, starting at the end of September 2021.
The updated design improves the user experience by simplifying the layout, making the pages more mobile compatible, and aligning with other Ministry web pages.
Please contact Alphons Evers (alphons.evers@ontario.ca) if you encounter any issues after the change or have any questions.
During this update, this page will be removed. Please update your bookmark to the following: Specific Gravity.
This digital data set contains specific gravity data for rock samples collected by Ontario Geological Survey staff from across Ontario between 1970 and 2014. The majority of the more than 26 000 geolocated data records were obtained from specific gravity measurements of Archean rocks, with smaller populations of data from Proterozoic and Paleozoic eras.
Download the Ontario Specific Gravity Data for Bedrock Samples Acquired from 1970 to 2014 in GIS format.