Mathematics – Logic
Scientific paper
Oct 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999e%26psl.172..255e&link_type=abstract
Earth and Planetary Science Letters, Volume 172, Issue 3-4, p. 255-259.
Mathematics
Logic
1
Scientific paper
Magnetic mineralogy is now commonly employed in the study of past climate changes, but the underlying magnetoclimatological mechanisms are not fully understood. Many important instances have been reported where pedogenesis leads to magnetic enhancement; warmer, more humid conditions produce higher magnetic signals. However, significant exceptions occur, wherein colder, more arid conditions lead to higher magnetic content. One suggested explanation for the latter is the so-called wind-vigour model in which glacial intervals are associated with stronger, more frequent winds which are more efficient at entraining and transporting dense iron oxide particles. This notion is tested here by determining the relevant magnetic properties of the ash produced by the 1980 eruption of Mount St. Helens. A clear exponential decrease of magnetic susceptibility with increasing distance from the vent is observed. This supports the wind-vigour concept (at least in some environments) as a viable alternative to the pedogenetic model of magnetoclimatology.
No associations
LandOfFree
Magnetoclimatology: a test of the wind-vigour model using the 1980 Mount St. Helens ash 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 Magnetoclimatology: a test of the wind-vigour model using the 1980 Mount St. Helens ash, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetoclimatology: a test of the wind-vigour model using the 1980 Mount St. Helens ash will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1084633