Abstract
Paleomagnetism and K-Ar ages of two successive lava flows from Kita-Matsuura, northwestern Kyushu were studied in attempting to estimate the time required for the geomagnetic field to switch from one polarity to the other. Both lava flow successions record normal and reversed polarities. K-Ar ages of these flows range from 7m. y. to 10m. y. However, because of inconsistensies within a flow and among successive flows, K-Ar ages should be regarded as indicating approximate ages of these lava flows. Hence, it was not possible to determine the transition time for the geomagnetic field switching.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
