Interaction between ice streaming, glacitectonics and fluid flow in Håkjerringdjupet, SW Barents Sea

• Main Author: Jakobsen, Frank Werner
• Format: Master Thesis
• Language: English
• Published: UiT Norges arktiske universitet 2016
• Subjects: VDP::Mathematics and natural science: 400::Geosciences: 450::Quaternary geology; glaciology: 465; VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Kvartærgeologi; glasiologi: 465; VDP::Mathematics and natural science: 400::Geosciences: 450::Marine geology: 466; VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Marin geologi: 466; VDP::Mathematics and natural science: 400::Geosciences: 450::Sedimentology: 456; VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Sedimentologi: 456; VDP::Mathematics and natural science: 400::Geosciences: 450::Petroleum geology and petroleum geophysics: 464; VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Petroleumsgeologi og -geofysikk: 464; glacitectonics; glasitektonikk; gas hydrates; gasshydrater; GEO-3900; Barents Sea
• Online Access: https://hdl.handle.net/10037/9239

By using high resolution multibeam swath batymetry and 2- and 3D seismic data this thesis investigate the interactions between ice streaming, glacitectonics and fluid flow in Håkjerringdjupet. The source area for a glacitectonic hill-hole pair is located directly above spatial fluid accumulations assosiated to a fault complex. Glacitectonic deposits are found directly downstream from this area. We suggest that sub-glacial gas hydrate formation due to low temperature - high pressure conditions caused basal freeze-on and subsequent glacitectonic rafting.