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• W2104420858 endingPage "1020" @default.
• W2104420858 startingPage "997" @default.
• W2104420858 abstract "A group of dyke rocks from the Frederick E. Hyde Fjord area form the southern termination of a prominent dyke-swarm in Peary Land, northernmost Greenland. The melanocratic dykes are NS- to NW–SE-trending, vertically dipping, ≤10–12 m wide, and have narrow chilled margins. Whole-rock 40 Ar/ 39 Ar dating of three dyke rocks indicates emplacement at ca. 85 Ma, some 15 to 20 Ma older than previous K–Ar whole-rock dating indicated. Whole-rock 40 Ar/ 39 Ar dating of three Lower Paleozoic metasedimentary rocks collected hundreds of meters away from the dykes reflects partial resetting during dyke-rock emplacement and suggests that the area experienced a greater thermal disturbance than the outcrop distribution of the dyke rocks would suggest. The dyke rocks contain normally zoned, euhedral microphenocrysts of titaniferous ( ≤4 wt.% TiO2) clinopyroxene in a matrix of olivine (Fo 69–35), plagioclase (An69–35, ≤1.0 wt.% K2O), clinopyroxene and ilmenite; rare matrix biotite [Fe/(Fe + Mg) = 0.65] occurs, and intergranular granophyre is present in the most evolved dykes. Whole-rock geochemistry indicates a basaltic composition, with the least evolved rocks containing 5.7% MgO, 14% FeOT, 4% TiO2, 2.8% Na2O, and 0.9% K2O (by weight). In terms of major elements, the rocks correspond to sodic-type alkali basalts; the normative mineralogy indicates an affinity t o both olivine tholeiites and alkali basalts. Trace-element contents (45 ppm Ni, 45 ppm Co, 80 ppm Cr, 335 ppm V, on average) and mg numbers between 0.42 and 0.45 indicate that the rocks do not represent primitive magmas. Abundances of the rare-earth elements (REE = 170 to 200 ppm, LaN = 100) and strongly fractionated patterns (La N/LuN = 10) are consistent with the alkaline nature of the dyke rocks. The lack of negative Eu anomalies in chondrite-normalized REE profiles is consistent with the absence of plagioclase phenocrysts, suppressed by a high H 2O content of the magma. Normalized extended trace-element diagrams and 87 Sr/ 86 Sr versus 143 Nd/ 144 Nd isotopic plots indicate affinities with OIB. Although the 87 Sr/ 86 Sri values (0.70467 ± 10) do not indicate crustal contamination, 18 O values (+6.0 to +7.9‰) are above typical mantle values and suggest some crustal influence." @default.
• W2104420858 created "2016-06-24" @default.
• W2104420858 creator A5004001377 @default.
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• W2104420858 date "2001-08-01" @default.
• W2104420858 modified "2023-10-02" @default.
• W2104420858 title "CRETACEOUS MAFIC DYKE SWARM, PEARY LAND, NORTHERNMOST GREENLAND: GEOCHRONOLOGY AND PETROLOGY" @default.
• W2104420858 cites W1484832768 @default.
• W2104420858 cites W1560141275 @default.
• W2104420858 cites W1624806571 @default.
• W2104420858 cites W183474771 @default.
• W2104420858 cites W1840617620 @default.
• W2104420858 cites W1970658925 @default.
• W2104420858 cites W1972337416 @default.
• W2104420858 cites W1974499954 @default.
• W2104420858 cites W1982863321 @default.
• W2104420858 cites W1992891991 @default.
• W2104420858 cites W1995857854 @default.
• W2104420858 cites W2004494859 @default.
• W2104420858 cites W2009032167 @default.
• W2104420858 cites W2020775643 @default.
• W2104420858 cites W2021754290 @default.
• W2104420858 cites W2021987309 @default.
• W2104420858 cites W2022316305 @default.
• W2104420858 cites W2022648729 @default.
• W2104420858 cites W2024891920 @default.
• W2104420858 cites W2025327988 @default.
• W2104420858 cites W2025402266 @default.
• W2104420858 cites W2030816045 @default.
• W2104420858 cites W2039695289 @default.
• W2104420858 cites W2040908727 @default.
• W2104420858 cites W2050731913 @default.
• W2104420858 cites W2070104683 @default.
• W2104420858 cites W2073281216 @default.
• W2104420858 cites W2075849098 @default.
• W2104420858 cites W2083317421 @default.
• W2104420858 cites W2090457820 @default.
• W2104420858 cites W2095601024 @default.
• W2104420858 cites W2110008915 @default.
• W2104420858 cites W2112435406 @default.
• W2104420858 cites W2113790549 @default.
• W2104420858 cites W2115421030 @default.
• W2104420858 cites W2132871887 @default.
• W2104420858 cites W2138522501 @default.
• W2104420858 cites W2166978438 @default.
• W2104420858 cites W2172174448 @default.
• W2104420858 cites W2182530361 @default.
• W2104420858 cites W2196926643 @default.
• W2104420858 cites W2212178433 @default.
• W2104420858 cites W2292941994 @default.
• W2104420858 cites W2303593638 @default.
• W2104420858 cites W2338438729 @default.
• W2104420858 cites W2410435046 @default.
• W2104420858 cites W2465314537 @default.
• W2104420858 cites W2483504290 @default.
• W2104420858 cites W2501114495 @default.
• W2104420858 cites W2530595160 @default.
• W2104420858 cites W2604279050 @default.
• W2104420858 cites W2906151471 @default.
• W2104420858 cites W2907409562 @default.
• W2104420858 cites W2979595134 @default.
• W2104420858 cites W3118029888 @default.
• W2104420858 cites W3167386666 @default.
• W2104420858 cites W3167550570 @default.
• W2104420858 cites W3167675786 @default.
• W2104420858 cites W3168559954 @default.
• W2104420858 cites W3169182476 @default.
• W2104420858 cites W3169423443 @default.
• W2104420858 cites W3169680753 @default.
• W2104420858 cites W3170074671 @default.
• W2104420858 cites W3170766120 @default.
• W2104420858 cites W3170905013 @default.
• W2104420858 cites W3171170604 @default.
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• W2104420858 doi "https://doi.org/10.2113/gscanmin.39.4.997" @default.
• W2104420858 hasPublicationYear "2001" @default.
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