Matches in SemOpenAlex for { <https://semopenalex.org/work/W2054667070> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W2054667070 abstract "The Ordovician volcanic rocks in the Mayaxueshan area have been pervasively altered or metamorphosed and contain abundant secondary minerals such as albite, chlorite, epidote, prehnite, pumpellyite, actinolite, titanite, quartz, and/or calcite. They were denoted as spilites or spilitic rocks in terms of their petrographic features and mineral assemblages. The metamorphic grades of the volcanic rocks are equivalent to that of the intercalated metaclastic rocks. This indicates that both the spilitic volcanic rocks and metaclastic rocks in the Mayaxueshan area have formed as a result of Caledonian regional metamorphism. We suggest that the previously denoted spilitic rocks or altered volcanic rocks should be re-denoted as metabasalts or metabasaltic rocks. The metamorphic grade of the volcanic rocks increases with their age: prehnite-pumpellyite facies for the upper part of the Middle Ordovician volcanic rocks, prehnite-pumpellyite to lower greenschist facies for the lower part of the Middle Ordovician volcanic rocks, and lower greenschist facies for the Lower Ordovician volcanic rocks. The P-T conditions are estimated as T = 240 − 290°C and P = 1.5 − 4.5 kbar for the lower part of the Middle Ordovician rocks, and T = ∼ 300°C for the Lower Ordovician rocks. The variations of mineral assemblages occurring at different domains of the volcanic rocks were controlled by the variations of the effective bulk composition in those domains during metamorphism. The geochemical characteristics of Mg-Al chromite in the Mayaxueshan volcanic rocks are consistent with an origin of island arc environment." @default.
- W2054667070 created "2016-06-24" @default.
- W2054667070 creator A5007196769 @default.
- W2054667070 creator A5085703897 @default.
- W2054667070 date "2010-09-07" @default.
- W2054667070 modified "2023-09-27" @default.
- W2054667070 title "A Petrographic and Mineralogical Study of Volcanic Rocks from the Mayaxueshan Area, North Qilian Fold Belt, NW China" @default.
- W2054667070 cites W131146170 @default.
- W2054667070 cites W141071579 @default.
- W2054667070 cites W1966685022 @default.
- W2054667070 cites W1967419716 @default.
- W2054667070 cites W1989964869 @default.
- W2054667070 cites W1993619314 @default.
- W2054667070 cites W2026939814 @default.
- W2054667070 cites W2056797624 @default.
- W2054667070 cites W2058850685 @default.
- W2054667070 cites W2094901772 @default.
- W2054667070 cites W2101713821 @default.
- W2054667070 cites W2211156397 @default.
- W2054667070 cites W2317678368 @default.
- W2054667070 cites W40966293 @default.
- W2054667070 cites W4213089991 @default.
- W2054667070 cites W6461344 @default.
- W2054667070 cites W960227013 @default.
- W2054667070 doi "https://doi.org/10.1111/j.1755-6724.2002.tb00068.x" @default.
- W2054667070 hasPublicationYear "2010" @default.
- W2054667070 type Work @default.
- W2054667070 sameAs 2054667070 @default.
- W2054667070 citedByCount "0" @default.
- W2054667070 crossrefType "journal-article" @default.
- W2054667070 hasAuthorship W2054667070A5007196769 @default.
- W2054667070 hasAuthorship W2054667070A5085703897 @default.
- W2054667070 hasConcept C109007969 @default.
- W2054667070 hasConcept C112764850 @default.
- W2054667070 hasConcept C120806208 @default.
- W2054667070 hasConcept C127313418 @default.
- W2054667070 hasConcept C146588470 @default.
- W2054667070 hasConcept C151730666 @default.
- W2054667070 hasConcept C17409809 @default.
- W2054667070 hasConcept C192241223 @default.
- W2054667070 hasConcept C26687426 @default.
- W2054667070 hasConcept C37045145 @default.
- W2054667070 hasConcept C5900021 @default.
- W2054667070 hasConcept C59235061 @default.
- W2054667070 hasConcept C79927612 @default.
- W2054667070 hasConcept C91442348 @default.
- W2054667070 hasConceptScore W2054667070C109007969 @default.
- W2054667070 hasConceptScore W2054667070C112764850 @default.
- W2054667070 hasConceptScore W2054667070C120806208 @default.
- W2054667070 hasConceptScore W2054667070C127313418 @default.
- W2054667070 hasConceptScore W2054667070C146588470 @default.
- W2054667070 hasConceptScore W2054667070C151730666 @default.
- W2054667070 hasConceptScore W2054667070C17409809 @default.
- W2054667070 hasConceptScore W2054667070C192241223 @default.
- W2054667070 hasConceptScore W2054667070C26687426 @default.
- W2054667070 hasConceptScore W2054667070C37045145 @default.
- W2054667070 hasConceptScore W2054667070C5900021 @default.
- W2054667070 hasConceptScore W2054667070C59235061 @default.
- W2054667070 hasConceptScore W2054667070C79927612 @default.
- W2054667070 hasConceptScore W2054667070C91442348 @default.
- W2054667070 hasLocation W20546670701 @default.
- W2054667070 hasOpenAccess W2054667070 @default.
- W2054667070 hasPrimaryLocation W20546670701 @default.
- W2054667070 hasRelatedWork W1040231346 @default.
- W2054667070 hasRelatedWork W1976941467 @default.
- W2054667070 hasRelatedWork W2001365998 @default.
- W2054667070 hasRelatedWork W2027378697 @default.
- W2054667070 hasRelatedWork W2058903488 @default.
- W2054667070 hasRelatedWork W2060994884 @default.
- W2054667070 hasRelatedWork W2265270232 @default.
- W2054667070 hasRelatedWork W2351108709 @default.
- W2054667070 hasRelatedWork W2351439141 @default.
- W2054667070 hasRelatedWork W2352061239 @default.
- W2054667070 hasRelatedWork W2357179790 @default.
- W2054667070 hasRelatedWork W2362387266 @default.
- W2054667070 hasRelatedWork W2369306714 @default.
- W2054667070 hasRelatedWork W2371969974 @default.
- W2054667070 hasRelatedWork W2373447292 @default.
- W2054667070 hasRelatedWork W2376020227 @default.
- W2054667070 hasRelatedWork W2388136023 @default.
- W2054667070 hasRelatedWork W2778712881 @default.
- W2054667070 hasRelatedWork W2784065354 @default.
- W2054667070 hasRelatedWork W3204860347 @default.
- W2054667070 isParatext "false" @default.
- W2054667070 isRetracted "false" @default.
- W2054667070 magId "2054667070" @default.
- W2054667070 workType "article" @default.