Abstract
The Port Stanley till, located along the north shore of Lake Erie, was sampled in detail at vertical intervals of 25 cm at one site near Wheatley, Ontario (19 blocks, 90 specimens), and at six other sites (39 blocks, 235 specimens) along 100 km of the shore of Lake Erie east of Wheatley to the Port Stanley area. The detrital remanent magnetization (DRM) is moderately intense (mean J NRM ≈ 4.1 × 10 −5 emu per cm 3 ) and stable (mean coercivity ≈300 Oe). The DRM mean directions after alternating-field (AF) demagnetization for each site are well grouped (mean α 95 = 8.6°), indicating a mean direction by sites of 7.4°, 47.2° ( R = 6.9830, α 95 = 3.2°) and a mean virtual geomagnetic pole (VGP) position of lat 74.7° N., long 78.2° E. (δ m = 4.2°, δ p = 2.7°). The paleomagnetic data suggest a rapid deposition rate for the Port Stanley till of 100 to 400 yr, in reasonable agreement with the minimum geologic estimate of about 500 yr. Anisotropy of magnetic susceptibility measurements made at each site provides a reliable estimate of the fabric in the till.
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.
