The East China Sea (ECS) is featured by the broad continental shelf, huge terrigenous sediment input and striking river-sea interaction during the Quaternary. Despite the numerous studies, mostly on the delta, coastal and inner shelf areas, the late Quaternary stratigraphy and sedimentary environment on the mid-outer ECS shelf were poorly documented. In particular, it is still controversial in issues such as the recognition of marine transgression deposits in the interglacial period and the occurrence and ages of deposits in the glacial period. This study presents new data of high-resolution seismic reflection profiles and collective evidences from lithology, microfossil assemblages and geochronology of borehole SFK-1 on the ECS outer shelf, aiming to revisit the sedimentary stratigraphic evolution and environmental changes since the Marine Isotopic Stage 5 (MIS5). Sixty-one ages were obtained by radiocarbon and Optical Stimulation Luminescence (OSL), providing robust constraints on th
First humans in Tasmania must have seen spectacular auroras
Laschamp excursion occurred in Australia and seen by first humans
Study shows Tasmanian Aboriginals would ve seen Laschamp geomagnetic excursion.
Newswise Drilling a 270,000-year old core from a Tasmanian lake has provided the first Australian record of a major global event where the Earth s magnetic field switched - and the opportunity to establish a precedent for developing new paleomagnetic dating tools for Australian archaeology and paleosciences. This is the first study of this kind in Australia since pioneering studies in the 1980s, said author Dr Agathe Lisé-Provonost, a McKenzie Fellow from the School of Earth Sciences at the University of Melbourne.