Paleomagnetic of the Paleocene/Eocene boundary interval in DSDP holes from the eastern North Atlantic ...
A magnetostratigraphic reinvestigation of the Paleocene/Eocene boundary intervals in DSDP Holes 550 and 549, Goban Spur, has removed uncertainties associated with the previously published magnetostratigraphic information for these chronostratigraphically important sections. In Hole 550, levels assig...
| Main Authors: | , |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
PANGAEA
1998
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.1594/pangaea.711461 https://doi.pangaea.de/10.1594/PANGAEA.711461 |
| Summary: | A magnetostratigraphic reinvestigation of the Paleocene/Eocene boundary intervals in DSDP Holes 550 and 549, Goban Spur, has removed uncertainties associated with the previously published magnetostratigraphic information for these chronostratigraphically important sections. In Hole 550, levels assigned to nannoplankton zones NP4 and 5, previously considered to be of normal polarity, carry a reverse polarity characteristic magnetisation which is correlated with geomagnetic Chron C26r. Unconformably overlying these levels is a thin interval of reversely magnetised sediment which records the latter part of Chron C25r. Chron C25n is redefined and its lower/upper boundaries are placed respectively at 425.08 and 422.12 mbsf in Hole 550. Chron C24r extends upwards ~62.4 m. Respectively, the start and end of Chron C24n.3n are placed at 359.69 and 349.41 mbsf in this hole. Within Core 28, just above C24n.3n, is a record of Chron C24n.2n as well as interval of indeterminate polarity within C24n.2r. The problematic ... : Supplement to: Ali, Jason Richard; Hailwood, Ernie A (1998): Magnetostratigraphic (re)calibration of the Paleocene/Eocene boundary interval in Holes 550 and 549, Goban Spur, eastern North Atlantic. Earth and Planetary Science Letters, 161(1-4), 201-213 ... |
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