No short reversals of Brunhes Age recorded in the Toba Tuffs, north Sumatra, Indonesia
Document Type
Article
Publication Date
1-1987
Department
Department of Geological and Mining Engineering and Sciences
Abstract
Paleomagnetic and 40Ar/39Ar data indicate that two tuffs are present at Siguragura, North Sumatra, Indonesia: a reversely magnetized tuff (the earliest eruptive unit of the Toba caldera) of Matuyama age (0.84 Ma) and a normally magnetized tuff (the last eruptive unit of the Toba caldera) of late Brunhes age. No reversely magnetized tuffs of late Brunhes age are present at this location as suggested by previous investigators.
Publication Title
Geophysical Research Letters
Recommended Citation
Diehl, J.,
Onstott, T.,
Chesner, C.,
&
Knight, M.
(1987).
No short reversals of Brunhes Age recorded in the Toba Tuffs, north Sumatra, Indonesia.
Geophysical Research Letters,
14(7), 753-756.
http://doi.org/10.1029/GL014i007p00753
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/8384