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Detailed Reference Information |
Gallet, Y., Krystyn, L., Besse, J., Saidi, A. and Ricou, L. (2000). New constraints on the Upper Permian and Lower Triassic geomagnetic polarity timescale from the Abadeh section (central Iran). Journal of Geophysical Research 105: doi: 10.1029/1999JB900218. issn: 0148-0227. |
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We present the magnetostratigraphy of the Abadeh section (central Iran). Thermal demagnetization shows two magnetic components: one at low unblocking temperatures, which corresponds to a present day-field direction, and another at high temperatures. This second component, which contains both polarities, is interpreted as a primary magnetization acquired during sediment deposition at a paleolatitude of about 7.7 ¿S. A sequence of 14 magnetic polarity zones is obtained in the intervals during the Upper Dzhulfian-Lower Changhsingian (Upper Permian) and during the Griesbachian (Lower Triassic). Combining data from south China, Canada, Pakistan, and Iran, we propose a composite (but still uncomplete) Upper Permian and Lower Triassic geomagnetic polarity timescale. ¿ 2000 American Geophysical Union |
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Keywords
Geomagnetism and Paleomagnetism, Magnetostratigraphy, Geomagnetism and Paleomagnetism, Reversals (process, timescale, magnetostratigraphy), Information Related to Geologic Time, Mesozoic, Information Related to Geologic Time, Paleozoic |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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