TRIGGER MECHANISMS FOR SAND INTRUSIONS – INFERENCES FROM PUBLISHED DATA AND INTERPRETATION OF 3D SEISMIC DATA FROM THE NORTHERN NORTH SEA
Masterstudent: Iselin Torland Tjensvold
Spring 2016 (January)
Spring 2018 (March)
This thesis has investigated the possibility of a link between trigger mechanisms and the tectonic setting of the basin where sand intrusions occur. Several basins worldwide were investigated, and revealed an overrepresentation of subsurface sediment remobilization at convergent margins (including transform margins) and inverted passive margins. Possible trigger mechanisms for sand intrusions occurring at convergent margins were investigated based on already published literature. Investigations of 3D seismic data from the northern North Sea was carried out to examine trigger mechanisms of sand intrusions at inverted passive margins.