Palaeomagnetism of the Bayan Gol Formation, western Mongolia
- 1 July 1996
- journal article
- Published by Cambridge University Press (CUP) in Geological Magazine
- Vol. 133 (4) , 487-496
- https://doi.org/10.1017/s0016756800007615
Abstract
Oriented samples of the Lower Cambrian Bayan Gol Formation from Salaany Gol, Mongolia, were collected at roughly 5 m stratigraphic intervals for palaeomagnetic analysis. Progressive alternatingfield and thermal demagnetization isolated two magnetic components: a present-field overprint, typically removed by 10 mT fields and ~200600 13C profiles for the Zavkhan basin and the Siberian platform. Alternatively, the characteristic magnetic direction from our samples may be a pre-fold overprint. If post-accretionary, then comparison with Siberian palaeomagnetic results suggest a Silurian45°, several thousand kilometres from the equatorial Siberian cratonKeywords
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