von Dobeneck, TiloRazik, SebastianSebastianRazik2020-03-092020-03-092014-11-07https://media.suub.uni-bremen.de/handle/elib/760Continental margins are supplied by terrigenous clastic, as well as by biogenic marine sediments and, thus, act as natural archives for various environmental conditions. This thesis delineates sediment-distribution patterns off SE South America (20-55 deg. S) and NW Africa (14-17 deg. N) mainly based on rock-magnetic properties supplemented by clastic grain-size distributions, major-element concentrations, planktic and benthic foraminiferal assemblages, as well as stable-isotope signatures obtained from surface and down-core sediment samples. These investigations, spanning the last 19 kyr, reveal insights about prevalent climatic conditions on land (i.e., intensities of South American Monsoon System&Southern Westerly Wind Belt, or North-African Harmattan&trade winds) with impacts on major terrestrial sediment sources and transport paths. However, they also enable to draw conclusions about marine environmental conditions linked to ocean-current systems (i.e., Brazil&Malvinas Currents).enBitte wählen Sie eine Lizenz aus: (Unsere Empfehlung: CC-BY)environmental magnetismgranulometrymulti proxysediment provenancesediment transportSouth AmericaSouth American Monsoon SystemSouthern Westerly Wind BeltWest Africatrade windsHarmattan windBrazil CurrentMalvinas CurrentSubtropical Shelf Front500 Naturwissenschaften und Mathematik::550 Geowissenschaften, GeologieDissertationurn:nbn:de:gbv:46-00104091-19