Sökning: "Pliocene"

Visar resultat 11 - 13 av 13 uppsatser innehållade ordet Pliocene.

  1. 11. Analys av ursprunget på löss från sen Pliocen – tidig Kvartär i Kina

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Kevin Pettersson; [2017]
    Nyckelord :loess; source; correlation; ratio; löss; källa; korrelation; förhållande;

    Sammanfattning : The boundary between the Pliocene and the Quaternary marks a major transition in Earth’s climate, before which relatively warm climate prevailed and after which large scale glaciation of the Northern Hemisphere developed. In China a record of windblown dust deposits on the Chinese loess plateau forms loess sequences. LÄS MER

  3. 12. The population structure of Late Pliocene and Early Pleistocene Neptunea angulata, Gastropoda and an investigation into bias in the fossil record and museum collections.

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Thomas Owen; [2016]
    Nyckelord :Bias; age distributions; taphonomy; population structure.; Partiskhet; åldersfördelning; tafonomi; populationsstrukturer.;

    Sammanfattning : The fossil population structure of the gastropod Neptunea angulata from the late Pliocene and Early Pleistocene was investigated in this project in order to contribute to a wider study on the influence of predation on populations and the evolutionary history of organisms. Over time, predator-prey relationships can drive evolution in a way similar to the Red Queen Hypothesis. LÄS MER

  4. 13. Diamonds in the Rough : Remote predictive mapping using multispectral satellite imagery for kimberlite exploration on northeast Banks Island, NT

    Master-uppsats, Stockholms universitet/Institutionen för naturgeografi

    Författare :Anne Farineau; [2015]
    Nyckelord :;

    Sammanfattning : This study demonstrates the use and limitations of Remote Predictive Mapping (RPM) as an aid to kimberlite exploration on northeast Banks Island, Northwest Territories, Canada. It focuses on the effectiveness of ASTER and Landsat 8 optical multi-spectral satellite imagery for discerning the spectral properties of different bedrock and surficial materials that outcrop or blanket the regional terrain. LÄS MER