학술논문

Validity of paleomagnetic poles and principles of constructing their wander paths: A case study of the East European platform
Document Type
Case study
Author abstract
Source
Izvestiya Physics of the Solid Earth. Nov, 2007, Vol. 43 Issue 11, p960, 7 p.
Subject
Algorithm
Algorithms -- Case studies
Language
English
ISSN
1069-3513
Abstract
Methods of selecting paleomagnetic data for the construction of apparent polar wander paths (APWPs) are analyzed. It is shown that the existing criteria of reliability of paleomagnetic data cannot be regarded as evidence for their validity. In other words, no unambiguous dependence exists between the reliability and the closeness of paleomagnetic poles to a hypothetical region crossed by the reliable APWP. A new approach to the construction of paleomagnetic APWPs based on simple principles (principle of space and principle of time) is proposed. Using a numerical implementation of this algorithm, three stable clusters were determined (L .sub.p = 164, F .sub.p = 43 L .sub.p = 144, F .sub.p = 13 and L .sub.p = 170, F .sub.p = -2) the respective maximum estimates of their ages are 248--251, 345, and 385 Ma. These clusters can be regarded as reliable paleomagnetic poles in the Paleozoic of the East European platform.