The Jan Mayen microcontinent's Cenozoic stratigraphic succession and structural evolution within the NE-Atlantic
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The Jan Mayen microcontinent's Cenozoic stratigraphic succession and structural evolution within the NE-Atlantic. / Blischke, Anett; Stoker, Martyn S.; Brandsdóttir, Bryndís; Hopper, John R.; Peron-Pinvidic, Gwenn; Ólavsdóttir, Jana; Japsen, Peter.
In: Marine and Petroleum Geology, Vol. 103, 05.2019, p. 702-737.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - The Jan Mayen microcontinent's Cenozoic stratigraphic succession and structural evolution within the NE-Atlantic
AU - Blischke, Anett
AU - Stoker, Martyn S.
AU - Brandsdóttir, Bryndís
AU - Hopper, John R.
AU - Peron-Pinvidic, Gwenn
AU - Ólavsdóttir, Jana
AU - Japsen, Peter
N1 - Funding Information: This research project is conducted at the University of Iceland and funded by the National Energy Authority of Iceland (Orkustofnun) and the Iceland GeoSurvey . We specifically commemorate Dr. þórarinn S. Arnarson, Orkustofnun, for his support and advice. Data permissions were provided by Spectrum ASA, TGS; the University of Oslo (UiO), the Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), and GEUS (Geological Survey of Denmark and Greenland). We thank Guðrún Helgadóttir and Páll Reynisson, Marine Research Institute of Iceland (MRI), for making the multibeam and backscatter data available and the Norwegian Petroleum Directorate (NPD) for use of their 2D multichannel reflection data sets from 2011 & 2012. Funding Information: This research project is conducted at the University of Iceland and funded by the National Energy Authority of Iceland (Orkustofnun) and the Iceland GeoSurvey. We specifically commemorate Dr. þórarinn S. Arnarson, Orkustofnun, for his support and advice. Data permissions were provided by Spectrum ASA, TGS; the University of Oslo (UiO), the Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), and GEUS (Geological Survey of Denmark and Greenland). We thank Guðrún Helgadóttir and Páll Reynisson, Marine Research Institute of Iceland (MRI), for making the multibeam and backscatter data available and the Norwegian Petroleum Directorate (NPD) for use of their 2D multichannel reflection data sets from 2011 & 2012. Publisher Copyright: © 2019 Elsevier Ltd
PY - 2019/5
Y1 - 2019/5
N2 - Cenozoic seismic-stratigraphic units of the Jan Mayen microcontinent (JMMC) are presented in context with kinematic modelling of plate reorganisation correlation with conjugate margins, and their chrono-stratigraphic correlations. Our model of development of the microcontinent, from continental breakup to present-day, is based on the interpretation of new and legacy geological and geophysical data. From these data, we have established eleven Cenozoic seismic-stratigraphic units (JM-70 to JM-01) separated by ten locally varying unconformities and disconformities, six of which are regional and reflect discrete tectonostratigraphic phases in the evolution of the Jan Mayen region. These six main phases are: (1) pre-breakup Paleocene (>55 Ma) extension represented by seismic unit JM-70, which comprises terrigenous and marine sedimentary rocks and a thick plateau basalt volcanic succession; (2) Early Eocene (∼55-52 Ma) syn-breakup (rift-to-drift) represented by seismic unit JM-60 and comprises a mix of intrusive igneous rocks, subaerial lavas and hyaloclastites, and non-marine to shallow-marine sedimentary rocks; (3) Early to Mid-Eocene (∼52-43 Ma) syn-breakup (rift-to-drift) and rift-transfer across the Iceland plateau rift, represented by seismic unit JM-50 that comprises volcanic rocks and shelf-margin deltaic sediment succession; (4) Late Eocene – Early Oligocene (43-30 Ma) ridge transfer and tectonic re-arrangement in proximity of the Iceland hotspot represented in the rock record by shallow-to deep-marine deposits preserved as units JM-40, JM-35, and JM-30; (5) in the Late Oligocene (30-22 Ma), a second breakup occurred along the western JMMC igneous margin, together with the formation of the south-western Jan Mayen igneous province, the proto-Kolbeinsey ridge, and the initiation of proto-Iceland all, of which, is represented in the rock record by seismic units JM-20 and JM-15; and, (6) Miocene-to-present-day separation of the JMMC from East Greenland (since 22 Ma), which is represented by seismic units JM-10, JM-05, and JM-01 that reflect a general deepening of the microcontinent.
AB - Cenozoic seismic-stratigraphic units of the Jan Mayen microcontinent (JMMC) are presented in context with kinematic modelling of plate reorganisation correlation with conjugate margins, and their chrono-stratigraphic correlations. Our model of development of the microcontinent, from continental breakup to present-day, is based on the interpretation of new and legacy geological and geophysical data. From these data, we have established eleven Cenozoic seismic-stratigraphic units (JM-70 to JM-01) separated by ten locally varying unconformities and disconformities, six of which are regional and reflect discrete tectonostratigraphic phases in the evolution of the Jan Mayen region. These six main phases are: (1) pre-breakup Paleocene (>55 Ma) extension represented by seismic unit JM-70, which comprises terrigenous and marine sedimentary rocks and a thick plateau basalt volcanic succession; (2) Early Eocene (∼55-52 Ma) syn-breakup (rift-to-drift) represented by seismic unit JM-60 and comprises a mix of intrusive igneous rocks, subaerial lavas and hyaloclastites, and non-marine to shallow-marine sedimentary rocks; (3) Early to Mid-Eocene (∼52-43 Ma) syn-breakup (rift-to-drift) and rift-transfer across the Iceland plateau rift, represented by seismic unit JM-50 that comprises volcanic rocks and shelf-margin deltaic sediment succession; (4) Late Eocene – Early Oligocene (43-30 Ma) ridge transfer and tectonic re-arrangement in proximity of the Iceland hotspot represented in the rock record by shallow-to deep-marine deposits preserved as units JM-40, JM-35, and JM-30; (5) in the Late Oligocene (30-22 Ma), a second breakup occurred along the western JMMC igneous margin, together with the formation of the south-western Jan Mayen igneous province, the proto-Kolbeinsey ridge, and the initiation of proto-Iceland all, of which, is represented in the rock record by seismic units JM-20 and JM-15; and, (6) Miocene-to-present-day separation of the JMMC from East Greenland (since 22 Ma), which is represented by seismic units JM-10, JM-05, and JM-01 that reflect a general deepening of the microcontinent.
KW - Cenozoic
KW - Dual-breakup
KW - Hiatus
KW - Iceland plateau
KW - Jan Mayen microcontinent
KW - Kinematic model
KW - Seismic stratigraphy
KW - Unconformity
UR - http://www.scopus.com/inward/record.url?scp=85063615684&partnerID=8YFLogxK
U2 - 10.1016/j.marpetgeo.2019.02.008
DO - 10.1016/j.marpetgeo.2019.02.008
M3 - Journal article
AN - SCOPUS:85063615684
VL - 103
SP - 702
EP - 737
JO - Marine and Petroleum Geology
JF - Marine and Petroleum Geology
SN - 0264-8172
ER -
ID: 355627285