Sökning: "stratigraphy"

Visar resultat 31 - 35 av 80 avhandlingar innehållade ordet stratigraphy.

1. 31. Seismic stratigraphy and tectonics offshore Scania, south-western Baltic Sea

   Författare :Wasim Paracha; Boris Winterhalter; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Geovetenskap; allmän och historisk geologi; General and Historical Geology;

   Sammanfattning : Geophysical data and descriptions of deep wells, produced during hydrocarbon explorations in the south-western part of the Baltic Sea offshore Scania, have revealed new information on the geological development of the area. This investigation is concentrated to the offshore triangular segment between the northwest-southeast Permian Sorgenfrei-Tornquist Zone through Scania and the east-west Caledonian Front north of Rügen. LÄS MER

3. 32. Urbanised Nature in the Past : Site formation and Environmental Developement in Two Swedish Towns, AD 1200-1800

   Författare :Jens Heimdahl; Ann-Marie Robertsson; Jane Sidell; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Urban stratigraphy; environmental reconstruction; site formation; geoarchaeology; dark earth; macrofossil analysis; Quaternary geology; Kvartärgeologi;

   Sammanfattning : In order to explore site formations and reconstruct environmental development in Medieval and Post-Medieval towns, urban occupational strata in Norrköping and Karlstad were studied according to biostratigraphy, sedimentology and pedology. New field procedures including continuous pilot sampling, parallel archaeological and geological stratigraphic interpretation, and on-site analysis of plant macrofossils were developed and applied at archaeological excavations in both towns. LÄS MER

4. 33. Geological development of the East African coastal basin of Tanzania

   Författare :Samson Mpanda; Ole Veibaeck; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Marine Geology; seismic methods; seismic stratigraphy; multichannel seismic recordings; tectonic development; Karoo; Mesozoic; Tertiary; East Africa; Tanzania; Earth sciences; Geovetenskap; allmän och historisk geologi; General and Historical Geology;

   Sammanfattning : The East African coastal basin of Tanzania, which is characterised by an extensional tectonic style, is located along the passive continental margin of the western Indian Ocean. The present study is concerned with the Mafia Island and the Mafia Channel which together form a subbasin within the north-south elongated coastal sedimentary basin of Tanzania. LÄS MER

5. 34. Tracing environmental change and human impact as recorded in sediments from coastal areas of the northwestern Baltic Proper

   Författare :Lena Norbäck Ivarsson; Elinor Andrén; Thomas Andrén; Mikael Lönn; John Anderson; Södertörns högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Baltic Sea; paleoecology; diatom stratigraphy; stable nitrogen isotopes; hypoxia; nutrient discharge; eutrophication; Medieval Climate Anomaly; Little Ice Age; Environmental Studies; Miljövetenskapliga studier; Östersjö- och Östeuropaforskning; Baltic and East European studies;

   Sammanfattning : The eutrophication of the Baltic Sea due to increased anthropogenic nutrient loads during the 20th century is well documented and studied. However, in the Baltic Sea drainage area, humans have affected the environment longer than the environmental monitoring can provide data for. LÄS MER

7. 35. Seismic stratigraphy and bedrock geology of the Bothnian Sea, northern Baltic

   Författare :Stefan Axberg; Stockholms universitet; []
   Nyckelord :;

   Sammanfattning : .... LÄS MER