Results 81 to 90 of about 858 (191)

Ti-Rich Tholeiitic Picrites from the Prinsen af Wales Bjerge, East Greenland, and Evidence for a Pyroxene-Rich Mantle Source at Breakup in the North Atlantic

open access: yes, 2022
Highly magnesian, olivine-phyric tholeiitic basaltic and picritic lavas with >5 wt% TiO2 from the Prinsen af Wales Bjerge (PAWB) region are chemically distinct from all other Paleogene East Greenland flood basalts and from basalts in the North ...
Hansen, Henriette   +3 more
core   +1 more source

Evolution of the Earth's mantle-crust-atmosphere system from the trace element and isotope geochemistry of the plume-mantle reservoir [PDF]

open access: yes, 2009
The 62 million year old lava flows of Baffin Island and West Greenland represent the earliest phase of magmatism in the North Atlantic Igneous Province (NAIP).
Starkey, Natalie
core   +2 more sources

Hf and Pb Isotopic Constraints on the Origin of a Well-Studied Suite of Icelandic Picrites

open access: yes, 2019
The Iceland plume is one of the best geochemically studied plume in the literature. Isotopically enriched Icelandic lavas likely contained significant recycled components in their mantle source regions [1].
Niklas, Robert W.   +2 more
core   +1 more source

Composition of alkali picrites from the southwestern Greenland continental margin

open access: yes, 2006
The Labrador Sea is a basin with oceanic crust in its deep part. Bottom morphology of the Labrador Sea is rather complicated. Data of seismic profiling in this region indicate presence of numerous submarine mountains and hills, which are dominated by ...
A V Bobrov (6964214)   +3 more
core   +1 more source

Deep mantle origin of large igneous provinces and komatiites. [PDF]

open access: yesSci Adv, 2022
Pierru R   +7 more
europepmc   +1 more source

IV.—On the Occurrence of a Variety of Picrite (Scyelite) in Sark [PDF]

open access: yesGeological Magazine, 1889
Last summer I had the pleasure of passing a fortnight in the Channel Islands under the guidance of my friend the Rev. E. Hill, who has done so much to elucidate their geology. During our short visit to Sark we spent some hours in the beautiful little cove called Port du Moulin, examining the interesting sections of the hornblende-schist and underlying ...
openaire   +2 more sources

Mantle heterogeneity during the formation of the North Atlantic Igneous Province: Constraints from trace elementand Sr-Nd-Os-O isotope systematics of Baffin Island picrites

open access: yes, 2010
Sr-Nd-Os-O isotope and major and trace element data from _62 Ma picrites from Baffin Island constrain the composition of mantle sources sampled at the inception of North Atlantic Igneous Province (NAIP) magmatism.
Francis, D.
core   +1 more source

Lithostratigraphy, geology and geochemistry of the volcanic rocks of the Maligât Formation and associated intrusions on Disko and Nuussuaq, Paleocene of West Greenland

open access: yesGeological Survey of Denmark and Greenland Bulletin, 2018
The Paleocene volcanic rocks in the Nuussuaq Basin on Disko and Nuussuaq comprise the picritic Vaigat Formation (c. 62–61 Ma) and the overlying basaltic Maligât Formation (c. 60 Ma).
Asger Ken Pedersen   +2 more
doaj  

Origins of compositional heterogeneity in olivine-hosted melt inclusions from the Baffin Island picrites

open access: yes, 2004
The Baffin Island picrites are highly magnesian (< 22 wt% MgO) olivine tholeiites, erupted through felsic continental crust. Plots of most major and minor element oxides against MgO for the lavas define very tight trends consistent with modification of ...
Vadim Kamenetsky (14740705)   +4 more
core  

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