Acoustic Doppler Current Profiler (ADCP) data of sites GeoB22716-1, GeoB22717-1 and GeoB22732-1 during RV SONNE cruise SO260/1 and rock descriptions ...

This data set include (1) the detailed petrographic description of the diagnostic rock types used to infer the source areas of the material recovered from the Mar del Plata Canyon area (Western South Atlantic at 38° S) at Sites GeoB13830, GeoB22712, GeoB22717 and L45; and (2) the Acoustic Doppler Cu...

Full description

Bibliographic Details
Main Authors: Bozzano, Graziella, Baqués, Michele, Schwenk, Tilmann, Kasten, Sabine
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 2020
Subjects:
ADCP data
Argentine continental slope
SW Atlantic
Center for Marine Environmental Sciences MARUM
Antarctic
Antarctic Peninsula
Argentine
Scotia Sea
The Antarctic
Antarc*
Iceberg*
Tierra del Fuego
Online Access:https://dx.doi.org/10.1594/pangaea.925557
https://doi.pangaea.de/10.1594/PANGAEA.925557
Description
Summary:This data set include (1) the detailed petrographic description of the diagnostic rock types used to infer the source areas of the material recovered from the Mar del Plata Canyon area (Western South Atlantic at 38° S) at Sites GeoB13830, GeoB22712, GeoB22717 and L45; and (2) the Acoustic Doppler Current Profiler (ADCP) data obtained from Sites GeoB22716, GeoB22717 and GeoB22732.A variety of gravel- to cobble-sized rocks, recovered from the Mar del Plata Canyon area and interpreted as ice-rafted debris, represents the first evidence that large icebergs have floated in the Falkland (Malvinas) Current from the southern polar high latitudes far northward. Detailed petrographic analyses identified the Antarctic Peninsula, sub-Antarctic islands in the Scotia Sea, and Tierra del Fuego as plausible source areas. In the Mar del Plata Canyon, a combination of local slope instability and strong and persistent contouritic bottom currents, favored local enrichment in dropstones in the form of a loose, coarse sediment ...

Similar Items