Age of the Solomon Sea Basin from magnetic lineations |
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Authors: | Masato Joshima Yoshihisa Okuda Fumitoshi Murakami Kiyoyuki Kishimoto Eiichi Honza |
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Affiliation: | 1. Geological Survey of Japan, Higashi, 305, Yatabe, Japan
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Abstract: | Magnetic anomalies measured in the central to western half of the Solomon Sea, when considered with other magnetic data, reveal the existence of linear patterns. Magnetic lineation anomaly models of the Cenozoic, 65 to 0 Ma, suggest that an age between 34 and 28 Ma and a half-rate spreading speed of 5.8 cm/yr for the northern flank of a former spreading center best fits our present magnetic data in the Solomon Sea Basin. Heat flow and bathymetry data support this preferred model. |
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