Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- File Type
Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
Optically Stimulated Luminescence (Osl) Dating Of Perenially Frozen Deposits In North-Central Siberia: Osl Characteristics Of Quartz Grains And Methodological Considerations Regarding Their Suitability For Dating, Lee Arnold, Richard Roberts
Optically Stimulated Luminescence (Osl) Dating Of Perenially Frozen Deposits In North-Central Siberia: Osl Characteristics Of Quartz Grains And Methodological Considerations Regarding Their Suitability For Dating, Lee Arnold, Richard Roberts
Richard G Roberts
Optically stimulated luminescence (OSL) dating of coarse-grained quartz is increasingly being used as the main chronological tool in late Quaternary palaeoenvironmental reconstructions of Siberia. However, relatively little information has been published on the suitability of OSL dating for the various types of perennially frozen sediments found in this region. Here we provide a systematic examination of the quartz luminescence characteristics of 21 perennially frozen samples from the Taimyr Peninsula and adjacent coastal lowlands of north-central Siberia, and discuss their implications for the reliability of single-grain and multi-grain OSL chronologies in such contexts. The results of this study suggest that the …
Optical Dating Of Perennially Frozen Deposits Associated With Preserved Ancient Plant And Animal Dna In North-Central Siberia, Richard Roberts, Lee Arnold, F Brock, E Willerslev, A Tikhonov, R Macphee
Optical Dating Of Perennially Frozen Deposits Associated With Preserved Ancient Plant And Animal Dna In North-Central Siberia, Richard Roberts, Lee Arnold, F Brock, E Willerslev, A Tikhonov, R Macphee
Richard G Roberts
No abstract provided.
An Arid-Adapted Middle Pleistocene Vertebrate Fauna From South-Central Australia, Richard Roberts, Lee Arnold, John Hellstrom, Gavin Prideaux, Mark Hutchinson, Linda Ayliffe, Walter Boles, Matthew Cupper, Paul Devine, Brad Pillans, John Long
An Arid-Adapted Middle Pleistocene Vertebrate Fauna From South-Central Australia, Richard Roberts, Lee Arnold, John Hellstrom, Gavin Prideaux, Mark Hutchinson, Linda Ayliffe, Walter Boles, Matthew Cupper, Paul Devine, Brad Pillans, John Long
Richard G Roberts
No abstract provided.
Late Acheulean Hominins At The Marine Isotope Stage 6/5e Transition In North-Central India, Michael Haslam, Richard Roberts, Ceri Shipton, J Pal, Jacqueline Fenwick, Peter Ditchfield, Nicole Boivin, A Dubey, M Gupta, Michael Petraglia
Late Acheulean Hominins At The Marine Isotope Stage 6/5e Transition In North-Central India, Michael Haslam, Richard Roberts, Ceri Shipton, J Pal, Jacqueline Fenwick, Peter Ditchfield, Nicole Boivin, A Dubey, M Gupta, Michael Petraglia
Richard G Roberts
Single-grain optically stimulated luminescence dating was applied to Late Quaternary sediments at two sites in the Middle Son Valley, Madhya Pradesh, India. Designated Bamburi 1 and Patpara, thesse sites contain Late Acheulean stone tool assemblages, which we associate with non-modern hominins. Age determinations of 140-120. ka place the formation of these sites at around the Marine Oxygen Isotope Stage 6-5 transition, placing them among the youngest Acheulean sites in the world. We present here the geochronology and sedimentological setting of these sites, and consider potential implications of Late Pleistocene archaic habitation in north-central India for the initial dispersal of modern …