Mathematics – Logic
Scientific paper
Apr 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993georl..20..667b&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 20, no. 8, p. 667-670.
Mathematics
Logic
10
Chronology, Geomagnetism, Lava, Magnetic Field Inversions, Argon, Basalt, Data Processing, Mass Spectrometers, Radioactive Age Determination
Scientific paper
Recent dating of geomagnetic field reversals over the past 2 Ma, by both the radiometric and astrochronologic techniques, indicates that the K-Ar derived ages for these reversals are too young. We report an Ar-40/Ar-39 incremental heating study of two geomagnetic field reversals trapped in lavas on Akaroa Volcano, New Zealand, which demonstrates that the K-Ar derived ages for field reversals at 10-9 Ma are too young by about 7 percent. The new age for the termination of chron 5, a critical tie point on the geomagnetic polarity time-scale for late Miocene time, is 9.67 +/- 0.11 Ma.
Baksi Ajoy K.
Farrar Edward
Hoffman Kenneth A.
No associations
LandOfFree
A new calibration point for the late Miocene section of the geomagnetic polarity time scale - Ar-40/Ar-39 dating of lava flows from Akaroa Volcano, New Zealand does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A new calibration point for the late Miocene section of the geomagnetic polarity time scale - Ar-40/Ar-39 dating of lava flows from Akaroa Volcano, New Zealand, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A new calibration point for the late Miocene section of the geomagnetic polarity time scale - Ar-40/Ar-39 dating of lava flows from Akaroa Volcano, New Zealand will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1371254