FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2103071457> ?p ?o ?g. }

• W2103071457 endingPage "760" @default.
• W2103071457 startingPage "749" @default.
• W2103071457 abstract "The upper Oligocene to mid-Miocene granitic intrusive complexes of New Britain intrude basic Eocene volcanics that form part of the basement of the New Britain island arc. These complexes consist of geochemically coherent suites of I-type intrusions that range from diorite to granite; most are tonalites. Small centers of porphyry copper mineralization are found in association with plagioclase-quartz porphyry dike suites that generally invade the margins of the premineralization complexes.The intrusive complexes of central and western New Britain are found as isolated bodies along northwest-trending belts, whereas those of the Gazelle Peninsula crop out continuously along major northwest-trending fault systems. These relations probably reflect differing structural development in the two main sections of the arc.The intrusives consist of pyroxene, hornblende, biotite, calcic plagioclase, quartz, and orthoclase in varying proportions. This is a typical I-type assemblage. Accessories include magnetite, sphene, ilmenite, zircon, and apatite. Hornblende is the most abundant mafic mineral; orthoclase is important only in the most felsic intrusives and the members of the high-potassium suites, where it forms an interstitial phase. Mafic xenoliths are widely distributed through the intrusives and are considered to represent residual, refractory material carried in the magmas from their source.The granitic intrusives have I-type geochemistry which supports their derivation by partial melting of fractionated igneous rocks, most likely at the base of the crust. P-wave velocities of lower crustal rocks and estimates of past crustal thickness support this argument. The intrusives were probably emplaced at a time when 20 to 30 km of crust had developed within the arc.The close association between the granitic rocks and the plag-ioclase-quartz porphyries implies a relation in derivation, although the porphyries are texturally and geochemically distinct. The porphyries are not considered to be simple fractionates or textural variants of the granitic rocks, and their derivation from a lower crustal, fractionated igneous source, in a separate melting event, is also supported by their I-type geochemistry, low Ni, Cr, Co, and low Rb/Sr.The participation of magmatism from a mantle source is not considered, in this instance, to be a necessary condition for the generation of the granitic intrusives, porphyries, and associated copper mineralization systems." @default.
• W2103071457 created "2016-06-24" @default.
• W2103071457 creator A5005036828 @default.
• W2103071457 creator A5040741395 @default.
• W2103071457 date "1978-08-01" @default.
• W2103071457 modified "2023-09-23" @default.
• W2103071457 title "Intrusive rocks associated with porphyry copper mineralization, New Britain, Papua New Guinea" @default.
• W2103071457 doi "https://doi.org/10.2113/gsecongeo.73.5.749" @default.
• W2103071457 hasPublicationYear "1978" @default.
• W2103071457 type Work @default.
• W2103071457 sameAs 2103071457 @default.
• W2103071457 citedByCount "29" @default.
• W2103071457 countsByYear W21030714572012 @default.
• W2103071457 countsByYear W21030714572013 @default.
• W2103071457 countsByYear W21030714572014 @default.
• W2103071457 countsByYear W21030714572016 @default.
• W2103071457 countsByYear W21030714572020 @default.
• W2103071457 crossrefType "journal-article" @default.
• W2103071457 hasAuthorship W2103071457A5005036828 @default.
• W2103071457 hasAuthorship W2103071457A5040741395 @default.
• W2103071457 hasConcept C111696902 @default.
• W2103071457 hasConcept C127313418 @default.
• W2103071457 hasConcept C151730666 @default.
• W2103071457 hasConcept C156622251 @default.
• W2103071457 hasConcept C159390177 @default.
• W2103071457 hasConcept C159750122 @default.
• W2103071457 hasConcept C17409809 @default.
• W2103071457 hasConcept C179319051 @default.
• W2103071457 hasConcept C191897082 @default.
• W2103071457 hasConcept C192562407 @default.
• W2103071457 hasConcept C2549261 @default.
• W2103071457 hasConcept C2776152364 @default.
• W2103071457 hasConcept C3017739461 @default.
• W2103071457 hasConcept C544778455 @default.
• W2103071457 hasConcept C95457728 @default.
• W2103071457 hasConceptScore W2103071457C111696902 @default.
• W2103071457 hasConceptScore W2103071457C127313418 @default.
• W2103071457 hasConceptScore W2103071457C151730666 @default.
• W2103071457 hasConceptScore W2103071457C156622251 @default.
• W2103071457 hasConceptScore W2103071457C159390177 @default.
• W2103071457 hasConceptScore W2103071457C159750122 @default.
• W2103071457 hasConceptScore W2103071457C17409809 @default.
• W2103071457 hasConceptScore W2103071457C179319051 @default.
• W2103071457 hasConceptScore W2103071457C191897082 @default.
• W2103071457 hasConceptScore W2103071457C192562407 @default.
• W2103071457 hasConceptScore W2103071457C2549261 @default.
• W2103071457 hasConceptScore W2103071457C2776152364 @default.
• W2103071457 hasConceptScore W2103071457C3017739461 @default.
• W2103071457 hasConceptScore W2103071457C544778455 @default.
• W2103071457 hasConceptScore W2103071457C95457728 @default.
• W2103071457 hasIssue "5" @default.
• W2103071457 hasLocation W21030714571 @default.
• W2103071457 hasOpenAccess W2103071457 @default.
• W2103071457 hasPrimaryLocation W21030714571 @default.
• W2103071457 hasRelatedWork W2060057997 @default.
• W2103071457 hasRelatedWork W2094232525 @default.
• W2103071457 hasRelatedWork W2103071457 @default.
• W2103071457 hasRelatedWork W2352710904 @default.
• W2103071457 hasRelatedWork W2366324372 @default.
• W2103071457 hasRelatedWork W2381183300 @default.
• W2103071457 hasRelatedWork W2962424306 @default.
• W2103071457 hasRelatedWork W4226413089 @default.
• W2103071457 hasRelatedWork W4312942417 @default.
• W2103071457 hasRelatedWork W91473200 @default.
• W2103071457 hasVolume "73" @default.
• W2103071457 isParatext "false" @default.
• W2103071457 isRetracted "false" @default.
• W2103071457 magId "2103071457" @default.
• W2103071457 workType "article" @default.