Mathematics – Logic
Scientific paper
Aug 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13..733g&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 13, Aug. 1986, p. 733-736. USGS-supported research.
Mathematics
Logic
12
Geomagnetism, Paleomagnetism, Remanence, Structural Properties (Geology), British Columbia, Geological Faults, Sites, Tectonics, Washington
Scientific paper
Detailed demagnetization experiments isolated a characteristic remanent magnetization in ten stable sites from the upper Cretaceous Winthrop and Midnight Peak Formations in the Methow-Passayten belt of north-central Washington. This remanence agrees best between opposite limbs of a fold (the Goat Peak syncline) when corrected for 46 percent of tilt. This is consistent with magnetization acquired during deformation. Synfolding magnetization may have been facilitated by a thermochemical event associated with synkinematic intrusions along the axis of folding. The mean direction (D = 12.0 deg, I = 61.1 deg, Alpha-95 = 4.8 deg) is highly discordant with respect to the expected direction for north-central Washington. This discordance points to about 1,400 km of poleward transport and 48 deg of clockwise rotation between 93 and 45-48 Ma.
Beck Myrl E. Jr.
Burmester Russell F.
Granirer J. L.
No associations
LandOfFree
Cretaceous paleomagnetism of the Methow-Pasayten belt, Washington does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Cretaceous paleomagnetism of the Methow-Pasayten belt, Washington, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cretaceous paleomagnetism of the Methow-Pasayten belt, Washington will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-892817