Provenance on the Lysing-Lange megasequences on the Dønna Terrace: focus on stratigraphic variability and lateral sandbody connectivity
Master's thesis in Petroleum Geosciences Engineering The Cenomanian to Coniacian-Turonian Lange-Lysing megasequences are located on the Dønna Terrace in the Norwegian Sea. Provenance study using traditional provenance methods such as petrography, whole-rock geochemistry, and single grain U-Pb a...
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University of Stavanger, Norway
2019
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Online Access: | http://hdl.handle.net/11250/2619639 |
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ftunivstavanger:oai:uis.brage.unit.no:11250/2619639 2023-06-11T04:13:51+02:00 Provenance on the Lysing-Lange megasequences on the Dønna Terrace: focus on stratigraphic variability and lateral sandbody connectivity Olsen, Thomas Meldahl Ravnås, Rodmar Augustsson, Carita Norway, Norwegian Sea 2019-06-29 application/pdf http://hdl.handle.net/11250/2619639 eng eng University of Stavanger, Norway Masteroppgave/UIS-TN-IER/2019; http://hdl.handle.net/11250/2619639 petroleumsgeologi whole-rock geochemistry petroleum geology stratigraphic variability geokjemi VDP::Technology: 500::Rock and petroleum disciplines: 510::Geological engineering: 513 VDP::Mathematics and natural science: 400::Geosciences: 450::Petroleum geology and petroleum geophysics: 464 Master thesis 2019 ftunivstavanger 2023-05-29T16:04:27Z Master's thesis in Petroleum Geosciences Engineering The Cenomanian to Coniacian-Turonian Lange-Lysing megasequences are located on the Dønna Terrace in the Norwegian Sea. Provenance study using traditional provenance methods such as petrography, whole-rock geochemistry, and single grain U-Pb and hafnium isotope analysis, combined with stratigraphy were used to test the validity of correlation within the megasequences. Low to a high degree of weathering and recycling, a different tectonic setting between a continental island arc and passive continental margin combined with element ratios, reveals significant contrasts within the stratigraphy of the megasequences. A relation between stratigraphic variability and lower slope to the basinfloor gross depositional environment have been established by a moderate to a high degree of sediment recycling with broader age spectra from U-Pb zircon dating of 90-3300 Ma. The marginal-marine to upper slope reveals a stratigraphic consistency by none to a low degree of sediment recycling combined with a narrower age spectrum of 350-1850 Ma. Provenance development of the marginal-marine unravels a difference in reservoir quality; however, better the reservoir quality decreases with the gross depositional environment. The basinfloor to lower slope gross depositional environment show overall bad reservoir quality, however, there are variations within the sandbodies from bad to good reservoir quality pointing to stratigraphic variability. A decrease in reservoir quality has defined a lateral rationale association between the marginal-marine towards the lower slope. Four main sediment transportation directions from seven provenance regions were deduced by frequent (350-1850 Ma), and subordinate (90-300 Ma and 2000-3300 Ma) U-Pb zircon age spectra and are relating to the Western Gneiss Region, Lofoten-Vesterålen and the West-Troms Basement Complex. Combining subordinate juvenile Phanerozoic (90-350 Ma) and older Archean ages (2500-3300 Ma), with other studies, suggests the origin ... Master Thesis Lofoten Norwegian Sea Vesterålen Troms University of Stavanger: UiS Brage Dønna ENVELOPE(12.583,12.583,66.100,66.100) Lofoten Norway Norwegian Sea Vesterålen ENVELOPE(14.939,14.939,68.754,68.754) |
institution |
Open Polar |
collection |
University of Stavanger: UiS Brage |
op_collection_id |
ftunivstavanger |
language |
English |
topic |
petroleumsgeologi whole-rock geochemistry petroleum geology stratigraphic variability geokjemi VDP::Technology: 500::Rock and petroleum disciplines: 510::Geological engineering: 513 VDP::Mathematics and natural science: 400::Geosciences: 450::Petroleum geology and petroleum geophysics: 464 |
spellingShingle |
petroleumsgeologi whole-rock geochemistry petroleum geology stratigraphic variability geokjemi VDP::Technology: 500::Rock and petroleum disciplines: 510::Geological engineering: 513 VDP::Mathematics and natural science: 400::Geosciences: 450::Petroleum geology and petroleum geophysics: 464 Olsen, Thomas Meldahl Provenance on the Lysing-Lange megasequences on the Dønna Terrace: focus on stratigraphic variability and lateral sandbody connectivity |
topic_facet |
petroleumsgeologi whole-rock geochemistry petroleum geology stratigraphic variability geokjemi VDP::Technology: 500::Rock and petroleum disciplines: 510::Geological engineering: 513 VDP::Mathematics and natural science: 400::Geosciences: 450::Petroleum geology and petroleum geophysics: 464 |
description |
Master's thesis in Petroleum Geosciences Engineering The Cenomanian to Coniacian-Turonian Lange-Lysing megasequences are located on the Dønna Terrace in the Norwegian Sea. Provenance study using traditional provenance methods such as petrography, whole-rock geochemistry, and single grain U-Pb and hafnium isotope analysis, combined with stratigraphy were used to test the validity of correlation within the megasequences. Low to a high degree of weathering and recycling, a different tectonic setting between a continental island arc and passive continental margin combined with element ratios, reveals significant contrasts within the stratigraphy of the megasequences. A relation between stratigraphic variability and lower slope to the basinfloor gross depositional environment have been established by a moderate to a high degree of sediment recycling with broader age spectra from U-Pb zircon dating of 90-3300 Ma. The marginal-marine to upper slope reveals a stratigraphic consistency by none to a low degree of sediment recycling combined with a narrower age spectrum of 350-1850 Ma. Provenance development of the marginal-marine unravels a difference in reservoir quality; however, better the reservoir quality decreases with the gross depositional environment. The basinfloor to lower slope gross depositional environment show overall bad reservoir quality, however, there are variations within the sandbodies from bad to good reservoir quality pointing to stratigraphic variability. A decrease in reservoir quality has defined a lateral rationale association between the marginal-marine towards the lower slope. Four main sediment transportation directions from seven provenance regions were deduced by frequent (350-1850 Ma), and subordinate (90-300 Ma and 2000-3300 Ma) U-Pb zircon age spectra and are relating to the Western Gneiss Region, Lofoten-Vesterålen and the West-Troms Basement Complex. Combining subordinate juvenile Phanerozoic (90-350 Ma) and older Archean ages (2500-3300 Ma), with other studies, suggests the origin ... |
author2 |
Ravnås, Rodmar Augustsson, Carita |
format |
Master Thesis |
author |
Olsen, Thomas Meldahl |
author_facet |
Olsen, Thomas Meldahl |
author_sort |
Olsen, Thomas Meldahl |
title |
Provenance on the Lysing-Lange megasequences on the Dønna Terrace: focus on stratigraphic variability and lateral sandbody connectivity |
title_short |
Provenance on the Lysing-Lange megasequences on the Dønna Terrace: focus on stratigraphic variability and lateral sandbody connectivity |
title_full |
Provenance on the Lysing-Lange megasequences on the Dønna Terrace: focus on stratigraphic variability and lateral sandbody connectivity |
title_fullStr |
Provenance on the Lysing-Lange megasequences on the Dønna Terrace: focus on stratigraphic variability and lateral sandbody connectivity |
title_full_unstemmed |
Provenance on the Lysing-Lange megasequences on the Dønna Terrace: focus on stratigraphic variability and lateral sandbody connectivity |
title_sort |
provenance on the lysing-lange megasequences on the dønna terrace: focus on stratigraphic variability and lateral sandbody connectivity |
publisher |
University of Stavanger, Norway |
publishDate |
2019 |
url |
http://hdl.handle.net/11250/2619639 |
op_coverage |
Norway, Norwegian Sea |
long_lat |
ENVELOPE(12.583,12.583,66.100,66.100) ENVELOPE(14.939,14.939,68.754,68.754) |
geographic |
Dønna Lofoten Norway Norwegian Sea Vesterålen |
geographic_facet |
Dønna Lofoten Norway Norwegian Sea Vesterålen |
genre |
Lofoten Norwegian Sea Vesterålen Troms |
genre_facet |
Lofoten Norwegian Sea Vesterålen Troms |
op_relation |
Masteroppgave/UIS-TN-IER/2019; http://hdl.handle.net/11250/2619639 |
_version_ |
1768391243566415872 |