Sökning: "Radiocarbon dating"

Visar resultat 31 - 35 av 46 avhandlingar innehållade orden Radiocarbon dating.

  1. 31. Pollen analysis, chronology and palaeomagnetism of three Late Weichselian sites in southern Sweden

    Författare :Jonas Ising; Kvartärgeologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; southern Sweden; calendar year chronology; Late Weichselian; Pollen stratigraphy; palaeomagnetic secular variations; Geology; physical geography; Geologi; fysisk geografi;

    Sammanfattning : Three sites, Torreberga in Skåne, Farslycke in Blekinge and Lake Bolmen in Småland, with Late Weichselian lake sediments were studied with respect to pollen analysis and palaeomagnetism. The chronologies are based on pollen stratigraphical correlations, radiocarbon dating and, for two of the sites, on a clay-varve chronology. LÄS MER

  3. 32. Late Quaternary climate and environmental change in the summer rainfall region of South Africa : A study using trees and wetland peat cores as natural archives

    Författare :Elin Norström; Karin Holmgren; Michael Meadows; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; paleoclimate; Late Quaternary; pollen; stable isotopes; diatoms; phytoliths; dendroclimatology; South Africa; Physical geography; Naturgeografi; Physical Geography; naturgeografi;

    Sammanfattning : This thesis contributes with information on past climate and environmental changes in South Africa’s summer rainfall region. The study is based on multi-proxy analyses on wetland peat cores and analyses of stable isotope composition (δ13C, δ18O) and wood anatomy in cross sections from subtropical trees (Breonadia salicina). LÄS MER

  4. 33. Blinded by the light : developing models of settlement and mobility with the use of spectroscopy and exploratory methods

    Författare :Mattias Sjölander; Philip I. Buckland; Johan Linderholm; Peter Jordan; Umeå universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; archaeology; hunter-gatherer; spectroscopy; chemometrics; quartz; quartzite; bifacial; lithics; geoarchaeology; exploratory; spatial analysis; modelling; arkeologi; jakt- och fångstfolk; spektroskopi; kemometri; kvarts; kvartsit; bifacial; flathuggen; geoarkeologi; rumslig analys; modellering; Archaeology; arkeologi; environmental archaeology; miljöarkeologi;

    Sammanfattning : In this thesis an exploratory approach has been used to study settlement and mobility among hunter-gatherer societies in Northern Sweden during the 2 000 – 0 BC period. The focus has been on developing the topics of bifacial point use and raw material management of quartzand quartzite materials. LÄS MER

  5. 34. Towards an Early Holocene Tephrochronology for the Faroe Islands: Methodology and first results

    Författare :Ewa Lind; Stefan Wastegård; Margareta Hansson; Britta Sannel; Jane Boygle; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Quarternary Geology; kvartärgeologi;

    Sammanfattning : The uncertainties regarding future climate change have put considerable notice to the climate variability following the Late Glacial-Holocene transition (ca. 13-9 ka BP) in the North Atlantic region as well as the forcing mechanisms behind climate changes. LÄS MER

  7. 35. Unguja Ukuu on Zanzibar : An archaeological study of early urbanism

    Författare :Abdurahman Juma; Paul Sinclair; Chapurukha M Kusimba; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Archaeology; cultural complexity; cycles; early urbanism; and urban characterization; Arkeologi; Archaeology subjects; Arkeologiämnen;

    Sammanfattning : This study describes archaeological excavations carried out at Unguja Ukuu on the main island of Zanzibar, Tanzania. The site has long remained obscure, oral histories do not mention it and no particular group among the living community of the island describes its origin from the site. LÄS MER