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Paleomagnetism of the Port Stanley Till, Ontario

1974; Geological Society of America; Volume: 85; Issue: 1 Linguagem: Inglês

10.1130/0016-7606(1974)85 2.0.co;2

1943-2674

M. Stupavsky, D. T. A. Symons, C. P. Gravenor,

Geological and Geochemical Analysis

Research Article| January 01, 1974 Paleomagnetism of the Port Stanley Till, Ontario M. STUPAVSKY; M. STUPAVSKY 1Department of Geology, University of Windsor, Windsor 11, Ontario Search for other works by this author on: GSW Google Scholar D.T.A. SYMONS; D.T.A. SYMONS 1Department of Geology, University of Windsor, Windsor 11, Ontario Search for other works by this author on: GSW Google Scholar C. P. GRAVENOR C. P. GRAVENOR 1Department of Geology, University of Windsor, Windsor 11, Ontario Search for other works by this author on: GSW Google Scholar Author and Article Information M. STUPAVSKY 1Department of Geology, University of Windsor, Windsor 11, Ontario D.T.A. SYMONS 1Department of Geology, University of Windsor, Windsor 11, Ontario C. P. GRAVENOR 1Department of Geology, University of Windsor, Windsor 11, Ontario Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1974) 85 (1): 141–144. https://doi.org/10.1130/0016-7606(1974)85 2.0.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation M. STUPAVSKY, D.T.A. SYMONS, C. P. GRAVENOR; Paleomagnetism of the Port Stanley Till, Ontario. GSA Bulletin 1974;; 85 (1): 141–144. doi: https://doi.org/10.1130/0016-7606(1974)85 2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search 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 JNRM ≈ 4.1 × 10−5 emu per cm3) and stable (mean coercivity ≈300 Oe). The DRM mean directions after alternating-field (AF) demagnetization for each site are well grouped (mean α95 = 8.6°), indicating a mean direction by sites of 7.4°, 47.2° (R = 6.9830, α95 = 3.2°) and a mean virtual geomagnetic pole (VGP) position of lat 74.7° N., long 78.2° E. (δm = 4.2°, δp = 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. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.