FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2123408034> ?p ?o ?g. }

• W2123408034 endingPage "1039" @default.
• W2123408034 startingPage "1019" @default.
• W2123408034 abstract "Abstract The youngest known ultrahigh‐pressure ( UHP ) rocks in the world occur in the Woodlark Rift of southeastern Papua New Guinea. Since their crystallization in the Late Miocene to Early Pliocene, these eclogite facies rocks have been rapidly exhumed from mantle depths to the surface and today they remain in the still‐active geodynamic setting that caused this exhumation. For this reason, the rocks provide an excellent opportunity to study rates and processes of (U) HP exhumation. We present New Rb–Sr results from 12 rock samples from eclogite‐bearing gneiss domes in the D'Entrecasteaux Islands, and use those results to examine the time lag between (U) HP metamorphism and later ductile thinning, penetrative fabric development and accompanying metamorphic retrogression at amphibolite facies conditions during their exhumation. A Rb–Sr age for a sample of mafic eclogite (with no preserved coesite) from the core zone of the Mailolo gneiss dome (Fergusson Island) provides a new estimate of the timing of HP metamorphism (5.6 ± 1.6 Ma). The strongly deformed quartzofeldspathic and granitic gneisses (90–95% by volume) that enclose variably retrogressed relict blocks of mafic eclogite (5–10% by volume) yield Rb–Sr isochron ages from 4.4 to 2.4 Ma. For the UHP ‐bearing gneisses of Mailolo dome, previously published U–Pb ages on zircon and our Rb–Sr isochron ages are consistent with a mean time lag of 2.2 ± 1.5 Ma (~95% c.i.) for passage of the rock between eclogite and amphibolite facies conditions. New thermobarometric data indicate that the main syn‐exhumational foliation developed at amphibolite facies conditions of 630–665 °C and 12.1–14.4 kbar. These pressure estimates indicate that the lower crust of the Woodlark Rift was unusually thick (>40 km) at the time of the amphibolite facies overprint, possibly as a result of accumulation and underplating of UHP ‐derived material from below. Our data imply a minimum unroofing rate of 10 ± 7 mm year −1 (~95% c.i.) for the (U) HP body from minimum HP depths (73 ± 7 km) to lower crustal depths. This minimum unroofing rate reinforces previous inferences that the exhumation from the mantle to the surface of the gneiss domes in the D'Entrecasteaux Islands took place at plate tectonic rates. On the basis of previous structural studies and the new thermobarometry, we attribute the high (cm year −1 ) exhumation to diapiric ascent of the partially molten terrane from mantle depths, with a secondary contribution from pure shear thinning of the terrane after its arrival in the crust." @default.
• W2123408034 created "2016-06-24" @default.
• W2123408034 creator A5005829588 @default.
• W2123408034 creator A5050265033 @default.
• W2123408034 creator A5055610674 @default.
• W2123408034 creator A5066208386 @default.
• W2123408034 creator A5067752590 @default.
• W2123408034 creator A5070838720 @default.
• W2123408034 creator A5076018403 @default.
• W2123408034 date "2014-09-30" @default.
• W2123408034 modified "2023-10-03" @default.
• W2123408034 title "Timing of UHP exhumation and rock fabric development in gneiss domes containing the world's youngest eclogite Facies rocks, southeastern Papua New Guinea" @default.
• W2123408034 cites W1501781670 @default.
• W2123408034 cites W1564613405 @default.
• W2123408034 cites W1601824667 @default.
• W2123408034 cites W1611586638 @default.
• W2123408034 cites W1634080907 @default.
• W2123408034 cites W1660706859 @default.
• W2123408034 cites W1829163844 @default.
• W2123408034 cites W1965458064 @default.
• W2123408034 cites W1966016940 @default.
• W2123408034 cites W1973993291 @default.
• W2123408034 cites W1974260748 @default.
• W2123408034 cites W1977902080 @default.
• W2123408034 cites W1980532484 @default.
• W2123408034 cites W1984826053 @default.
• W2123408034 cites W1994855356 @default.
• W2123408034 cites W1995782535 @default.
• W2123408034 cites W2001964436 @default.
• W2123408034 cites W2008038205 @default.
• W2123408034 cites W2011407246 @default.
• W2123408034 cites W2011952615 @default.
• W2123408034 cites W2018050219 @default.
• W2123408034 cites W2019793007 @default.
• W2123408034 cites W2020559961 @default.
• W2123408034 cites W2022653241 @default.
• W2123408034 cites W2028327545 @default.
• W2123408034 cites W2029963782 @default.
• W2123408034 cites W2037221458 @default.
• W2123408034 cites W2043150287 @default.
• W2123408034 cites W2043758942 @default.
• W2123408034 cites W2044219742 @default.
• W2123408034 cites W2047230097 @default.
• W2123408034 cites W2047688111 @default.
• W2123408034 cites W2048794400 @default.
• W2123408034 cites W2049992455 @default.
• W2123408034 cites W2052663957 @default.
• W2123408034 cites W2054314513 @default.
• W2123408034 cites W2062474827 @default.
• W2123408034 cites W2064536888 @default.
• W2123408034 cites W2066857664 @default.
• W2123408034 cites W2068705742 @default.
• W2123408034 cites W2071029078 @default.
• W2123408034 cites W2072746426 @default.
• W2123408034 cites W2077437893 @default.
• W2123408034 cites W2091198544 @default.
• W2123408034 cites W2091950820 @default.
• W2123408034 cites W2094635981 @default.
• W2123408034 cites W2096132197 @default.
• W2123408034 cites W2098906133 @default.
• W2123408034 cites W2100411277 @default.
• W2123408034 cites W2131915563 @default.
• W2123408034 cites W2141672163 @default.
• W2123408034 cites W2152066361 @default.
• W2123408034 cites W2153139681 @default.
• W2123408034 cites W2156471784 @default.
• W2123408034 cites W2159928436 @default.
• W2123408034 cites W2170245360 @default.
• W2123408034 cites W2172263446 @default.
• W2123408034 cites W2322045914 @default.
• W2123408034 cites W2322717888 @default.
• W2123408034 cites W2607318792 @default.
• W2123408034 cites W3028949811 @default.
• W2123408034 cites W4233848018 @default.
• W2123408034 cites W4246596171 @default.
• W2123408034 cites W970647145 @default.
• W2123408034 doi "https://doi.org/10.1111/jmg.12105" @default.
• W2123408034 hasPublicationYear "2014" @default.
• W2123408034 type Work @default.
• W2123408034 sameAs 2123408034 @default.
• W2123408034 citedByCount "9" @default.
• W2123408034 countsByYear W21234080342014 @default.
• W2123408034 countsByYear W21234080342017 @default.
• W2123408034 countsByYear W21234080342018 @default.
• W2123408034 countsByYear W21234080342019 @default.
• W2123408034 countsByYear W21234080342020 @default.
• W2123408034 countsByYear W21234080342021 @default.
• W2123408034 crossrefType "journal-article" @default.
• W2123408034 hasAuthorship W2123408034A5005829588 @default.
• W2123408034 hasAuthorship W2123408034A5050265033 @default.
• W2123408034 hasAuthorship W2123408034A5055610674 @default.
• W2123408034 hasAuthorship W2123408034A5066208386 @default.
• W2123408034 hasAuthorship W2123408034A5067752590 @default.
• W2123408034 hasAuthorship W2123408034A5070838720 @default.
• W2123408034 hasAuthorship W2123408034A5076018403 @default.
• W2123408034 hasConcept C109007969 @default.
• W2123408034 hasConcept C112764850 @default.
• W2123408034 hasConcept C114793014 @default.

• next