Interaction of mantle derived melts with crust during the emplacement of the Vøring Plateau, N.E. Atlantic

Meyer, R.; Hertogen, Jan; Pedersen, Rolf B.; Viereck‐Götte, Lothar; Abratis, Michael

doi:10.1016/j.margeo.2009.02.007

Cited by 35 publications

(53 citation statements)

References 14 publications

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“…Figure 16 summarizes (Viereck et al 1988;Meyer et al 2009) and SE Greenland (Fitton et al 2000). Available data for Skye define a trend that largely coincides with the field of the SE Greenland Lower Series (Carter et al 1978;Dickin, 1981;Thirlwall & Jones, 1983) and Middle Series (Gibson, 1991).…”

Section: Comparison Of Rum With Other Units Of the North Atlantic Volmentioning

confidence: 77%

“…The seaward-dipping wedges were emplaced on the edge of a thinned and stretched Figure 17. Th-Hf/3-Nb/16 diagram for the representative Rum samples and available data from the seaward-dipping reflector sequences of SE Greenland (Fitton et al 2000) and the mid-Norwegian Vøring margin (Meyer et al 2009). Included in the Rum plot are the average granulite compositions (star symbol) proposed by Wood (1980) and Rudnick & Gao (2003).…”

Section: Comparison Of Rum With Other Units Of the North Atlantic Volmentioning

confidence: 99%

“…This paper focuses on a study of the samples from the Isle of Rum. Detailed results of samples from Vøring Plateau, ODP Leg 104, Hole 642E are reported elsewhere (Meyer et al 2009). …”

Section: Introductionmentioning

confidence: 99%

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Trace element and isotope constraints on crustal anatexis by upwelling mantle melts in the North Atlantic Igneous Province: an example from the Isle of Rum, NW Scotland

et al. 2009

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-Sr and Nd isotope ratios, together with lithophile trace elements, have been measured in a representative set of igneous rocks and Lewisian gneisses from the Isle of Rum in order to unravel the petrogenesis of the felsic rocks that erupted in the early stages of Palaeogene magmatism in the North Atlantic Igneous Province (NAIP). The Rum rhyodacites appear to be the products of large amounts of melting of Lewisian amphibolite gneiss. The Sr and Nd isotopic composition of the magmas can be explained without invoking an additional granulitic crustal component. Concentrations of the trace element Cs in the rhyodacites strongly suggests that the gneiss parent rock had experienced Cs and Rb loss prior to Palaeogene times, possibly during a Caledonian event. This depletion caused heterogeneity with respect to 87 Sr/ 86 Sr in the crustal source of silicic melts. Other igneous rock types on Rum (dacites, early gabbros) are mixtures of crustal melts and and primary mantle melts. Forward Rare Earth Element modelling shows that late stage picritic melts on Rum are close analogues for the parent melts of the Rum Layered Suite, and for the mantle melts that caused crustal anatexis of the Lewisian gneiss. These primary mantle melts have close affinities to Mid-Oceanic Ridge Basalts (MORB), whose trace element content varies from slightly depleted to slightly enriched. Crustal anatexis is a common process in the rift-to-drift evolution during continental break-up and the formation of Volcanic Rifted Margins systems. The 'early felsic-later mafic' volcanic rock associations from Rum are compared to similar associations recovered from the now-drowned seaward-dipping wedges on the shelf of SE Greenland and on the Vøring Plateau (Norwegian Sea). These three regions show geochemical differences that result from variations in the regional crustal composition and the depth at which crustal anatexis took place.

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Section: Comparison Of Rum With Other Units Of the North Atlantic Volmentioning

confidence: 77%

Section: Comparison Of Rum With Other Units Of the North Atlantic Volmentioning

confidence: 99%

See 1 more Smart Citation

Trace element and isotope constraints on crustal anatexis by upwelling mantle melts in the North Atlantic Igneous Province: an example from the Isle of Rum, NW Scotland

et al. 2009

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“…5 and the geodynamic history associated with continental breakup (Meyer et al, 2007;Meyer et al, 2009a; In this paper we investigate in detail the pre-breakup magmatism in the North Atlantic area by addressing the example of the Vøring volcanic margin. For this matter, we used new and reprocessed seismic data, in combination with updated stratigraphic and petrological data from the Ocean Drilling Program (ODP) Hole 642E to constrain the nature, composition and emplacement mechanisms of the igneous rock successions erupted during the pre-breakup stages of the Vøring Margin.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…The recovered igneous succession from Hole 642E covers the rift to drift magmatic evolution and is considered to provide intrinsic petrological constraints on the initial breakup history and the subsequent volcanic margin evolution (e.g. Meyer et al, 2009a).…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

Pre-breakup magmatism on the Vøring Margin: Insight from new sub-basalt imaging and results from Ocean Drilling Program Hole 642E

et al. 2016

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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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Interaction of mantle derived melts with crust during the emplacement of the Vøring Plateau, N.E. Atlantic

Cited by 35 publications

References 14 publications

Trace element and isotope constraints on crustal anatexis by upwelling mantle melts in the North Atlantic Igneous Province: an example from the Isle of Rum, NW Scotland

Trace element and isotope constraints on crustal anatexis by upwelling mantle melts in the North Atlantic Igneous Province: an example from the Isle of Rum, NW Scotland

Pre-breakup magmatism on the Vøring Margin: Insight from new sub-basalt imaging and results from Ocean Drilling Program Hole 642E

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

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