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| Martin, V; Henry, P; Nouze, Herve; Noble, M; Ashi, J; Pascal, G. |
| In 2000, a 3D MCS survey was carried out on the Eastern Nankai Trough. A strong and widespread bottom-simulating reflector (BSR) was observed and mapped after a preserved amplitude 3D prestack migration of the seismic data. We use this BSR to calculate a heat flow map over the 3D survey area. This map presents some high and low heat flow areas, that cannot be correlated to known active wedge faults and previously observed fluid venting sites. Since the heat flow anomalies are not correlated to known major faults or fluid venting sites, large fluid circulation is not likely to explain the varying BSR-derived heat flow distribution. In order to explain this heat flow distribution quantitatively, we calculate the rates of erosion and sedimentation that are... |
| Tipo: Text |
Palavras-chave: Eastern Nankai margin; Surface processes; Heat flow; Bottom simulating reflector. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/2004/publication-509.pdf |
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