MD03-2495 / Audierne

Objectives:

  1. To determine the origin of the sediments at the place where the core was obtained.
  2. To show the differences between sedimentary rates at very close distances. Another core was obtained at Quibron which is very close to the earlier core.
  3. To determine the origin of the river Loire.
The basic plan is to study the origin of sediments along with the path of flow from the coast to the deep sea fan. The sediment is trapped in tidal bars, canyons, paleovalleys, etc. At the end of the course they get deposited in the levee and the lobes of the deep sea fan.

Audierne:

The team of Jean-Francois Bourillet tried to determine the origin of the sediments. It is seen that they originate from the river LaLoire but there is no evidence to prove this fact and that remains the goal of the team. The morphology of the shelf shows that there may be a connection between the sediments in the lobes (where Audierne was obtained) and the sediments in the river LaLoire. They have studied the sediments with respect to carbonates and grain size analysis. Future work is expect to be done by a Master student.

Characteristics of the core (MD03-2495):

Name : Audierne
Date : 18th July, 2003
Time : 00:21:25 GMT
Latitude : 46°43.14
Longitude : 06°12.68
Depth of release (Theoritical) 4319 m
Depth of the sea floor 4381 m
Length of the core 30.6 m
Speed of the messenger 260 m/s

Written by: Amelie, Sebastien, and Saptarshi.