Abstract
The Upper Cambrian Potsdam Formation (orthoquartzitic sandstone and conglomerate) in eastern Ontario, southwestern Quebec, and northern New York State, was deposited during an early Paleozoic transgression over the Precambrian surface of the Canadian shield. Rock types and sedimentary structures indicate three distinct environments: (1) Terrestrial, talus sheet wash fan (quartzite breccia), Frontenac arch, Thousand Islands region; (2) marine and (or) fluvial channel (cross laminated sandstone), Ontario and northern New York; and (3) low-energy, littoral to nearshore (laminated sandstone and some siltstone) Quebec and New York State. Reference outcrops are cited; bibliography is comprehensive.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
