SMALL SCALE PRESENT DAY TURBIDITY CURRENTS IN A TECTONICALLY ACTIVE SUBMARINE GRABEN, THE GULF OF CORINTH (GREECE): THEIR SIGNIFICANCE IN DISPERSING MINE TAILINGS AND THEIR RELEVANCE TO BASIN FILLING

摘要

A detailed marine survey, in Antikyra bay, in the northern margin of the Corinth Gulf graben in Greece, was carried out to examine the distribution and dispersion of bauxite "red-mud" tailings which have been discharged since 1970 on the shelf at a depth of 100 m. The 'red-mud' tailings are transported to the basir floor by turbidity currents is a depth of about 800 m and at a distance of up to 17 km from the source. Over a period of 14 years, ten (10) turbidity flow events have occurred The turbidity flows form small scattered sheet-like deposits. The deposits are usually lobe shaped, between 0.6 and 4 cm thick, and with an aerial coverage from 1·10~6 to 12 6·10~6 m~2. The turbidites overlap each other and cover a total area of 48 km~2.