Carbonate sedimentation and hydrodynamic pattern on a modern temperate shelf: The strait of Bonifacio (western Mediterranean) |
| |
Authors: | Giovanni De Falco Sandro De Muro Tiziana Batzella Andrea Cucco |
| |
Institution: | 1. Istituto per l’Ambiente Marino Costiero del CNR, Località Sa Mardini 09170 Torregrande Oristano, Italy;2. Dipartimento di Scienze della Terra Università degli studi di Cagliari, Via Trentino 51, 09127 Cagliari, Italy |
| |
Abstract: | The sedimentary features of the inner-middle shelf of the strait of Bonifacio (western Mediterranean) were analyzed to evaluate the relationship between the production and transport of biogenic carbonate sediments and the basin morphology and hydrodynamics. A three-dimensional hydrodynamic modeling was performed in order to simulate the influence of waves and currents at seabed level. Superficial sediments were collected at depths ranging from 5 to 80 m and were analyzed for grain size, mineralogical composition and skeletal carbonate composition. Posidonia oceanica seagrass meadows border the coasts in a narrow strip on both sides of the strait down to a depth of 40 m. At greater depths, the seabed is characterized by the presence of plateaus and ridges which are controlled by outcropping bedrock morphology. |
| |
Keywords: | biogenic carbonate Posidonia oceanica Maë rl sediment hydrodynamics |
本文献已被 ScienceDirect 等数据库收录! |