A seismic and gravity profile across the Arctic Ocean Basin
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Cited by (39)
Sediment deformation atop the Lomonosov Ridge, central Arctic Ocean: Evidence for gas-charged sediment mobilization?
2022, Marine and Petroleum GeologyCitation Excerpt :The exception is a 10 km long multichannel seismic section acquired by icebreaker (Knudsen et al., 2017) across the ridge perimeter at 89° N (Fig. 1, green track). As a result, the only seismic transects available across the level top of the ridge are a single drift track collected in 1965 from the ice drift station Arlis II using a five kilo-watt sparker recording on electrostatic paper (Ostenso and Wold, 1977) and three traverses made in 1985 by the Soviet ice station North Pole -28 (Fig. 1, red track). The seismic source used on North Pole-28 (NP-28) was blasting caps fired at 500 m intervals (Gramberg et al., 1991; Langinen et al., 2009).
Structure of ridges and basins off East Siberia along 81°N, Arctic Ocean
2015, Marine and Petroleum GeologyCitation Excerpt :The LR is interpreted as a continental fragment, which rifted off the Barents-Kara shelf at 56 Ma. This was first proposed by Heezen and Ewing (1961), and was generally accepted after seismic data became available from ice station ARLIS I (Ostenso and Wold, 1977) and the LOREX project (Sweeney et al., 1982), which showed that parts of the ridge consist of a series of en echelon fault blocks. The expedition of the German RV Polarstern in 1991 gathered the first two multichannel seismic traverses across the LR.
Gravity inversion predicts the nature of the amundsen basin and its continental borderlands near greenland
2014, Earth and Planetary Science LettersCitation Excerpt :At present, such models are largely unconstrained in the Arctic Ocean north of Greenland (Fig. 1b). Following the first seismic acquisition programs from drifting ice-stations (the Arlis-II expedition from 1963 to 1965, Ostenso and Wold, 1977; Duckworth and Baggeroer, 1985, and the North Pole-28 (NP-28) expedition from 1987 to 1989, Langinen et al., 2009), around 1500 km of marine seismic reflection profiles were acquired in the Amundsen Basin during the ARCTIC'91 expedition (Fig. 1b) (Jokat et al., 1995a, 1995b). Further, a continuous seismic reflection profile was acquired across the Amundsen Basin near the North Pole (Siberian side) in 2001 (Jokat and Micksch, 2004).
Arctic lithosphere - A review
2014, TectonophysicsCitation Excerpt :Physical samples of the acoustic basement have yet to be obtained. The Lomonosov Ridge consists of a series of en echelon fault blocks with a surprisingly simple fabric and a thin (40–75 m) veneer of sediment near the North Pole (Fütterer, 1992; Ostenso and Wold, 1977; Sweeney et al., 1982). At 88°N, the ridge is flat topped and Cenozoic sediments up to 500 m thick are separated from Mesozoic sediments of 1370 m thickness by an erosional unconformity across which a significant jump in seismic velocity is recorded (Jokat et al., 1992).
On the origin of the Amerasia Basin and the High Arctic Large Igneous Province-Results of new aeromagnetic data
2013, Earth and Planetary Science Letters
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Now with the U.S. Geological Survey, Woods Hole, Mass. 02543, U.S.A.