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| Morin, P; Lecorre, P; Marty, Y; Lhelguen, S. |
| The evolution of nutrient distribution has been followed in spring on the Armorican shelf in association with hydrological features and phytoplankton development. Data were collected on a sampling grid of 20 stations on the continental shelf during four cruises (SATIR 8 to 11) between March and June 1982. Haline fronts (Ushant haline front, coastal haline front) were found in late winter and early spring; their outlines follow closely the outlines of the summer thermal fronts. The origin of these haline fronts comes mainly from the outflow towards the English Channel of the waters of the Loire river on the South Brittany shelf. At this time of the year, a conservative mixing is observed between offshore waters with relatively low nutrient concentrations... |
| Tipo: Text |
Palavras-chave: NUTRIENTS; CONTINENTAL SHELF; NORTH-WEST EUROPE; TIDAL FRONTS; PHYTOPLANKTON. |
| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/00101/21256/18869.pdf |
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| Cirac, P; Frappa, M; Jaaid, Eb. |
| A 3.5 KHz high-resolution seismic survey carried out on the West-Riffian continental shelf, between Cap Spartel and Rabat, has shown that the morphostructural lineaments already identified on the continent, mainly within the South-Riffian western basin and its margins, extends towards the sea, on the continental shelf. These structures are related to stepped anticlinal flexures with a large curvature radius. The paleozoic acoustic substratum to the south and the cenozoic to the north are both characterised by a succession of abrupt erosion surfaces whose relatively constant bathymetric position could be attributed to paleoshorelines. We have also shown that the river mouth of Oued Sebou has changed position in the course of the Quaternary, under the... |
| Tipo: Text |
Palavras-chave: CONTINENTAL SHELF; NORTHWESTERN MOROCCO; HIGH-RESOLUTION SEISMOGRAPHY PALEOSHORELINE. |
| Ano: 1993 |
URL: http://archimer.ifremer.fr/doc/00099/21037/18663.pdf |
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