FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1505858180> ?p ?o ?g. }

• W1505858180 startingPage "275" @default.
• W1505858180 abstract "The Persani Mts. in the Eastern Transylvanian Basin is the easternmost Plio-Pleistocene alkali-basaltic volcanic field in the Carpathian–Pannonian Region. The products of the volcanic activity are lava flows and pyroclastic rocks, in which peridotites as xenoliths from the upper mantle can often be found. Besides peridotite xenoliths, pyroxenites are also quite common. The mineralogical composition of these pyroxenite xenoliths is mostly clinopyroxene, olivine, garnet, spinel ± orthopyroxene and amphibole. According to their modal composition, they are olivine clinopyroxenites, clinopyroxenites and websterites. We classified the pyroxenites into spinel-bearing pyroxenites (representing type I/I and type II/I series) and garnet-bearing pyroxenites. In the type I/I series clinopyroxene is diopsidic whereas in type II/I series its composition is augitic. In spinel pyroxenites, besides clinopyroxene, olivine is the second common mineral in some cases accompanied by orthopyroxene and amphibole. In garnet-bearing pyroxenites olivine and amphibole are absent, whereas orthopyroxene can often be observed. Textural observations suggest deformation events and mineral reactions, the results of changes in stress and p-T conditions during the evolution of the mantle rocks. Both clinopyroxene and orthopyroxene occur in each other as exsolution lamellae, which in some cases are curved. Garnet often contains exsolved needles of rutile and is always surrounded by symplectitic intergrowth of secondary orthopyroxene, clinopyroxene, spinel and plagioclase.Thermobarometry was based upon EMP analyses of the “primary” rock forming minerals. Equilibrium pressure values estimated from single clinopyroxene compositions are between 1,1 and 1,4 GPa, whereas garnet orthopyroxene barometry yielded 1,3-1,6 GPa. Orthopyroxene-clinopyroxene equilibrium temperatures are in the range 1070-1140°C, temperatures obtained from garnet-clinopyroxene pairs are between 1030-1170°C (at 1,1-1,3 GPa). Thermobarometric calculations were also made on the symplectite-forming minerals. The clinopyroxene barometer yielded 1,0-1,3 GPa for the symplectite-formation. Temperature values calculated with the compositional data of symplectite-forming clinopyroxene-orthopyroxene are 1070-1120°C.The variation in lithology points to the heterogeneity of the upper mantle. Based on the textural relationships and the thermobarometric results, the evolution of the xenoliths can be outlined: the deformation and pressure decrease (upwelling) in the lithospheric mantle before alkaline basaltic volcanism. The inferred p-T-path of the Persani Mts. pyroxenites fits well previously studied garnet peridotites.We used geochemical data to determine the equilibrium conditions of the xenolith formation, and the p-T path along with the degree of the mantle upwelling in the Eastern- Carpathian region is estimated by thermobarometric calculations, too." @default.
• W1505858180 created "2016-06-24" @default.
• W1505858180 creator A5011092929 @default.
• W1505858180 creator A5015567292 @default.
• W1505858180 creator A5036879395 @default.
• W1505858180 creator A5051765083 @default.
• W1505858180 creator A5073662908 @default.
• W1505858180 date "2005-01-07" @default.
• W1505858180 modified "2023-10-18" @default.
• W1505858180 title "SIGNIFICANCE OF PYROXENITES MANTLE XENOLITHS FROM THE PERSANI MOUNTAINS (EASTERN TRANSYLVANIAN BASIN) BASED ON PETROLOGIC AND GEOCHEMICAL STUDY" @default.
• W1505858180 doi "https://doi.org/10.4454/ofioliti.v30i2.315" @default.
• W1505858180 hasPublicationYear "2005" @default.
• W1505858180 type Work @default.
• W1505858180 sameAs 1505858180 @default.
• W1505858180 citedByCount "0" @default.
• W1505858180 crossrefType "journal-article" @default.
• W1505858180 hasAuthorship W1505858180A5011092929 @default.
• W1505858180 hasAuthorship W1505858180A5015567292 @default.
• W1505858180 hasAuthorship W1505858180A5036879395 @default.
• W1505858180 hasAuthorship W1505858180A5051765083 @default.
• W1505858180 hasAuthorship W1505858180A5073662908 @default.
• W1505858180 hasConcept C120806208 @default.
• W1505858180 hasConcept C127313418 @default.
• W1505858180 hasConcept C139498673 @default.
• W1505858180 hasConcept C151730666 @default.
• W1505858180 hasConcept C161509811 @default.
• W1505858180 hasConcept C17409809 @default.
• W1505858180 hasConcept C192241223 @default.
• W1505858180 hasConcept C23295444 @default.
• W1505858180 hasConcept C2776472008 @default.
• W1505858180 hasConcept C2779181077 @default.
• W1505858180 hasConcept C2779870107 @default.
• W1505858180 hasConcept C2780364934 @default.
• W1505858180 hasConcept C42796848 @default.
• W1505858180 hasConcept C4992710 @default.
• W1505858180 hasConcept C5900021 @default.
• W1505858180 hasConcept C67236022 @default.
• W1505858180 hasConcept C77928131 @default.
• W1505858180 hasConcept C84372278 @default.
• W1505858180 hasConceptScore W1505858180C120806208 @default.
• W1505858180 hasConceptScore W1505858180C127313418 @default.
• W1505858180 hasConceptScore W1505858180C139498673 @default.
• W1505858180 hasConceptScore W1505858180C151730666 @default.
• W1505858180 hasConceptScore W1505858180C161509811 @default.
• W1505858180 hasConceptScore W1505858180C17409809 @default.
• W1505858180 hasConceptScore W1505858180C192241223 @default.
• W1505858180 hasConceptScore W1505858180C23295444 @default.
• W1505858180 hasConceptScore W1505858180C2776472008 @default.
• W1505858180 hasConceptScore W1505858180C2779181077 @default.
• W1505858180 hasConceptScore W1505858180C2779870107 @default.
• W1505858180 hasConceptScore W1505858180C2780364934 @default.
• W1505858180 hasConceptScore W1505858180C42796848 @default.
• W1505858180 hasConceptScore W1505858180C4992710 @default.
• W1505858180 hasConceptScore W1505858180C5900021 @default.
• W1505858180 hasConceptScore W1505858180C67236022 @default.
• W1505858180 hasConceptScore W1505858180C77928131 @default.
• W1505858180 hasConceptScore W1505858180C84372278 @default.
• W1505858180 hasIssue "2" @default.
• W1505858180 hasLocation W15058581801 @default.
• W1505858180 hasOpenAccess W1505858180 @default.
• W1505858180 hasPrimaryLocation W15058581801 @default.
• W1505858180 hasRelatedWork W1480101760 @default.
• W1505858180 hasRelatedWork W1640410802 @default.
• W1505858180 hasRelatedWork W167877980 @default.
• W1505858180 hasRelatedWork W1968554667 @default.
• W1505858180 hasRelatedWork W1981648540 @default.
• W1505858180 hasRelatedWork W2017952569 @default.
• W1505858180 hasRelatedWork W2018991138 @default.
• W1505858180 hasRelatedWork W2045363855 @default.
• W1505858180 hasRelatedWork W2052108658 @default.
• W1505858180 hasRelatedWork W2065523416 @default.
• W1505858180 hasRelatedWork W2122253283 @default.
• W1505858180 hasRelatedWork W2155413836 @default.
• W1505858180 hasRelatedWork W2178492345 @default.
• W1505858180 hasRelatedWork W2507475138 @default.
• W1505858180 hasRelatedWork W2609245780 @default.
• W1505858180 hasRelatedWork W2766913578 @default.
• W1505858180 hasRelatedWork W2790230645 @default.
• W1505858180 hasRelatedWork W3158528305 @default.
• W1505858180 hasRelatedWork W954577772 @default.
• W1505858180 hasRelatedWork W229816662 @default.
• W1505858180 hasVolume "30" @default.
• W1505858180 isParatext "false" @default.
• W1505858180 isRetracted "false" @default.
• W1505858180 magId "1505858180" @default.
• W1505858180 workType "article" @default.