Authors
BS Singer, MK Relle, KA Hoffman, A Battle, C Laj, H Guillou, JC Carracedo
Publication date
2002/11
Journal
Journal of Geophysical Research: Solid Earth
Volume
107
Issue
B11
Pages
EPM 7-1-EPM 7-20
Description
A detailed study of 43 lava flows comprising two stratigraphic sequences exposed along the north and south walls of Barranco de los Tilos on the island of La Palma, Canary Islands, reveals a complex, temporally segmented record of geodynamo behavior that contains no less than three distinct geomagnetic events. The Matuyama‐Brunhes (M‐B) reversal is recorded in five transitionally magnetized lava flows from the north (TN) section. The isochrons obtained from three of the lower four M‐B lavas are defined by 14 incremental heating experiments that, together with a previous age determination, yielded a weighted mean of 798.4 ± 6.2 ka (all uncertainties ±2σ). In addition, a 780.3 ± 10.3 ka isochron was determined for the overlying transitionally magnetized flow, indicating that it was erupted during a distinctly younger portion of the transition. Near the base of the south (TS) section one finds a sequence of …
Total citations
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Scholar articles
BS Singer, MK Relle, KA Hoffman, A Battle, C Laj… - Journal of Geophysical Research: Solid Earth, 2002