Matches in SemOpenAlex for { <https://semopenalex.org/work/W2339591121> ?p ?o ?g. }
- W2339591121 endingPage "282" @default.
- W2339591121 startingPage "257" @default.
- W2339591121 abstract "Tectonic models predict that following breakup, rift margins undergo only decaying thermal subsidence during their postrift evolution. However, postbreakup stratigraphy beneath the NE Atlantic shelves shows evidence of regional-scale unconformities, commonly cited as outer margin responses to inner margin episodic uplift, including the formation of coastal mountains. The origin of these events remains enigmatic. We present a seismic reflection study from the Greenland Fracture Zone-East Greenland Ridge (GFZ-EGR) and the NE Greenland shelf. We document a regional intra-Miocene seismic unconformity (IMU), which marks the termination of synrift deposition in the deep-sea basins and onset of (i) thermomechanical coupling across the GFZ, (ii) basin compression, and (iii) contourite deposition, north of the EGR. The onset of coupling across the GFZ is constrained by results of 2-D flexural backstripping. We explain the thermomechanical coupling and the deposition of contourites by the formation of a continuous plate boundary along the Mohns and Knipovich ridges, leading to an accelerated widening of the Fram Strait. We demonstrate that the IMU event is linked to onset of uplift and massive shelf progradation on the NE Greenland margin. Given an estimated middle to late Miocene (~15–10 Ma) age of the IMU, we speculate that the event is synchronous with uplift of the east and west Greenland margins. The correlation between margin uplift and plate motion changes further indicates that the uplift was triggered by plate tectonic forces, induced perhaps by a change in the Iceland plume (a hot pulse) and/or by changes in intraplate stresses related to global tectonics." @default.
- W2339591121 created "2016-06-24" @default.
- W2339591121 creator A5016421467 @default.
- W2339591121 creator A5037633869 @default.
- W2339591121 creator A5038862422 @default.
- W2339591121 creator A5039996849 @default.
- W2339591121 creator A5080046975 @default.
- W2339591121 creator A5088831781 @default.
- W2339591121 creator A5090394968 @default.
- W2339591121 date "2016-02-01" @default.
- W2339591121 modified "2023-10-18" @default.
- W2339591121 title "Miocene uplift of the NE Greenland margin linked to plate tectonics: Seismic evidence from the Greenland Fracture Zone, NE Atlantic" @default.
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