Treitel Ridge: A unique inside corner hogback on the west flank of extinct Aegir spreading ridge, Norway basin

Vogt, Peter R.; Jung, Woo‐Yeol

doi:10.1016/j.margeo.2009.09.006

Cited by 7 publications

(8 citation statements)

References 77 publications

(187 reference statements)

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“…5 and 11). As recently discussed by Vogt and Jung (2009), the extremely low spreading rates estimated after C18n (40.1e38.4 Ma), may also favour the development of atypical oceanic features, interpreted as "nascent megamullions", denudated along the Treitel Ridge at the southwestern flank of the Aegir Ridge (Fig. 1).…”

Section: Crustal and Spreading Evolutionmentioning

confidence: 69%

“…The C13 period has often been considered as the principal tectonic event that affected the NB, although it has been recently suggested based on a detailed study of the Treitel Ridge (west of the southern Aegir Ridge) ( Fig. 1) that C18n time (40.13e38.4 Ma) could represent a better timing for the onset of plate reorganisation (Vogt and Jung, 2009) coinciding with a controversial seafloor spreading slowdown in the Labrador Sea (Roest and Srivastava, 1989) (Fig. 2).…”

Section: Geodynamic Framework and Previous Interpretationmentioning

confidence: 99%

“…The origin and nature of the Icelandic "hot-spot" continues to be controversial (Foulger, 2010;Meyer et al, 2007;Montelli et al, 2004;Vogt and Jung, 2009), but this "anomaly" seems to have had a restricted effect mostly on the Faroe-Iceland Ridge. Inversion of satellite altimetry-based gravity and topography (Greenhalgh and Kusznir, 2007) and a recent OBS (Ocean Bottom Seismometer) profile from the Møre margin to the Aegir Ridge (Breivik et al, 2006) suggested relatively normal to thin oceanic crust which is younger than C22 e this indicates normal to less than normal melt production for that period (Greenhalgh and Kusznir, 2007;Vogt and Jung, 2009).…”

Section: Faroe-iceland Ridgementioning

confidence: 99%

“…Inversion of satellite altimetry-based gravity and topography (Greenhalgh and Kusznir, 2007) and a recent OBS (Ocean Bottom Seismometer) profile from the Møre margin to the Aegir Ridge (Breivik et al, 2006) suggested relatively normal to thin oceanic crust which is younger than C22 e this indicates normal to less than normal melt production for that period (Greenhalgh and Kusznir, 2007;Vogt and Jung, 2009). To explain the decrease of melt production and the plume paradox, Breivik et al (2006) have suggested that Figure 9.…”

Section: Faroe-iceland Ridgementioning

confidence: 99%

See 3 more Smart Citations

The Norway Basin revisited: From continental breakup to spreading ridge extinction

Gernigon

Gaina

Olesen

et al. 2012

Marine and Petroleum Geology

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Section: Crustal and Spreading Evolutionmentioning

confidence: 69%

Section: Geodynamic Framework and Previous Interpretationmentioning

confidence: 99%

Section: Faroe-iceland Ridgementioning

confidence: 99%

Section: Faroe-iceland Ridgementioning

confidence: 99%

See 2 more Smart Citations

The Norway Basin revisited: From continental breakup to spreading ridge extinction

Gernigon

Gaina

Olesen

et al. 2012

Marine and Petroleum Geology

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“…A small number of large, elongated seamount chains or isolated rounded seamounts are also visible along the Jan Mayen Fracture Zone (JMFZ) situated in the northern Norway Basin (Table 1). One large feature was identified at the southernmost tip of the Aegir Ridge as a possible central volcano, formed by ridge propagation just prior to its extinction (Vogt & Jung 2009). …”

Section: Region Ii: the Norway Basinmentioning

confidence: 99%

Seamounts and oceanic igneous features in the NE Atlantic: a link between plate motions and mantle dynamics

Gaina

Blischke

Geissler

et al. 2016

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A new regional compilation of seamount-like oceanic igneous features (SOIFs) in the NE Atlantic points to three distinct oceanic areas of abundant seamount clusters. Seamounts on oceanic crust dated 54-50 Ma are formed on smooth oceanic basement, which resulted from high spreading rates and magmatic productivity enhanced by higher than usual mantle plume activity. Late Eocene-Early Miocene SOIF clusters are located close to newly formed tectonic features on rough oceanic crust in the Irminger, Iceland and Norway basins, reflecting an unstable tectonic regime prone to local readjustments of mid-ocean ridge and fracture zone segments accompanied by extra igneous activity. A SOIF population observed on Mid-Miocene-Present rough oceanic basement in the Greenland and Lofoten basins, and on conjugate Kolbeinsey Ridge flanks, coincides with an increase in spreading rate and magmatic productivity. We suggest that both tectonic/kinematic and magmatic triggers produced Mid-Miocene-Present SOIFs, but the Early Miocene westwards ridge relocation may have played a role in delaying SOIF formation south of the Jan Mayen Fracture Zone. We conclude that Iceland plume episodic activity combined with regional changes in relative plate motion led to local mid-ocean ridge readjustments, which enhanced the likelihood of seamount formation.

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Conjugate volcanic rifted margins, seafloor spreading, and microcontinent: Insights from new high‐resolution aeromagnetic surveys in the Norway Basin

et al. 2015

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We have acquired and processed new aeromagnetic data that cover the entire oceanic Norway Basin located between the Møre volcanic rifted margin and the Jan Mayen microcontinent (JMMC). The new compilation allows us to revisit the structure of the conjugate volcanic (rifted) margins and the spreading evolution of the Norway Basin from the Early Eocene breakup time to the Late Oligocene when the Aegir Ridge became extinct. The volcanic margins (in a strict sense) that formed before the opening of the Norway Basin have been disconnected with the previous Jurassic-Mid-Cretaceous episode of crustal thinning. We also show evidence of relationships between the margin architecture, the breakup magmatism distribution along the continent-oceanic transition, and the subsequent oceanic segmentation. The Norway Basin shows a complex system of asymmetric oceanic segments locally affected by episodic ridge jumps. The new aeromagnetic compilation also confirms that a fan-shaped spreading evolution of the Norway Basin was clearly active before the cessation of seafloor spreading and extinction of the Aegir Ridge. An important Mid-Eocene kinematic event at around magnetic chron C21r can be recognized in the Norway Basin. This event coincides with the onset of diking and increasing rifting activity (and possible oceanic accretion?) between the proto-JMMC and the East Greenland margin. It led to a second phase of breakup and microcontinent formation in the Norwegian-Greenland Sea~26 Myrs later in the Oligocene.

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Treitel Ridge: A unique inside corner hogback on the west flank of extinct Aegir spreading ridge, Norway basin

Cited by 7 publications

References 77 publications

The Norway Basin revisited: From continental breakup to spreading ridge extinction

The Norway Basin revisited: From continental breakup to spreading ridge extinction

Seamounts and oceanic igneous features in the NE Atlantic: a link between plate motions and mantle dynamics

Conjugate volcanic rifted margins, seafloor spreading, and microcontinent: Insights from new high‐resolution aeromagnetic surveys in the Norway Basin

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