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| Michaud, F; Bourgeois, J; Auboulin, J. |
| Marine geophysical surveys using Seabeam, single channel seismic reflection, gravity and magnetic profiling were conducted along the Acapulco Trench (21 degree 30'N-18 degree 00'N) during the Seamat Cruise of R/V Jean Charcot in June-July 1987. The surveyed areas are centered around latitude 18 degree N and 20 degree 30'N across the trench. Detailed surveying was also conducted at the East Pacific Rise (EPR) - Rivera Fracture Zone (RFZ) eastern junction. Unpublished bathymetric data of the Searise Cruise of R/V Jean Charcot conducted at the Western junction of EPR and RFZ in 1980 are also presented. |
| Tipo: Text |
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| Ano: 1990 |
URL: http://archimer.ifremer.fr/doc/00268/37931/36012.pdf |
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| Bandy, W; Michaud, F; Dyment, Jerome; Mortera Gutierrez, C; Bourgois, J; Calmus, T; Sosson, M; Ortega Ramirez, J; Royer, J; Pontoise, B; Sichler, Bertrand. |
| To better understand the recent motion of the Pacific plate relative to the Rivera plate and to better define the limitations of the existing Rivera-Pacific plate motion models for accurately predicting this motion, total-field magnetic data, multibeam bathymetric data and sidescan sonar images were collected during the BART and FAMEX campaigns of the N/O L'Atalante conducted in April and May 2002 in the area surrounding the Moctezuma Spreading Segment of the East Pacific Rise, located offshore of Manzanillo, Mexico, at 106 degrees 16'W, between 17.8 degrees N and 18.5 degrees N. Among the main results are: (1) the principle transform displacement zone of the Rivera Transform is narrow and well defined east of 107 degrees 15'W and these azimuths should be... |
| Tipo: Text |
Palavras-chave: Plate motions; Plate boundary morphology; Mexico; Rivera plate; Rivera Transform; East Pacific Rise. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-4486.pdf |
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| Bourgeois, J; Renard, V; Michaud, F; Mercier De Lepinay, B. |
| The data of the Seamat Cruise indicate that: a) the junction between the East Pacific Rise and the Rivera Fracture Zone is located 165 km seaward the Acapulco Trench axis at 18 degree 30'N latitude and 106 degree 15'W longitude; and b) the East Pacific Rise axial ridge connects the Rivera Transverse Ridge trough an overshot ridge. This situation makes the Rivera Fracture Zone located eastward of the junction progressively inactive and documents a westward jump of the junction. |
| Tipo: Text |
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| Ano: 1990 |
URL: http://archimer.ifremer.fr/doc/00268/37951/36032.pdf |
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