Matches in SemOpenAlex for { <https://semopenalex.org/work/W313753412> ?p ?o ?g. }
Showing items 1 to 62 of
62
with 100 items per page.
- W313753412 abstract "The Pan-African Zambezi belt in Zambia contains two major augen gneiss units that are elongated parallel to regional strike. These were previously regarded as slices of sialic basement structurally interleaved with Katangan metasedimentary rocks. New field and geochronologic evidence suggests that the gneisses are syntectonic granites intruded as large concordant sheets during main-phase (D/sub 1/) Pan-African deformation. A pervasive, horizontal or shallowly plunging mineral lineation on S/sub 1/ in the gneisses indicates that the parent granites were injected along major zones of transcurrent shear. The northern gneiss unit shows local discordant contacts against, and contains xenoliths of, adjacent Katangan rocks. Large, partly polygonized K-spar augen in the gneiss are wrapped around by S/sub 1/ and offset by microfractures antithetic to S/sub 1/. Finer grained granites intruding the gneiss are penetratively foliated to nondeformed, indicating that they were injected at various times relative to D/sub 1/. In the more intensely deformed southern gneiss unit, local pods of protomylonitic flaser gneiss grade into mylonites containing asymmetric K-spar augen set in a dynamically recrystallized matrix. U-Pb analyses of four fractions plus an air-abraded split of one fraction form a normal linear discordance pattern with an upper intercept of 820 +/- 7 Ma, takenmore » as the age of igneous crystallization. Comparison with other available geochronologic data indicates that this age dates main-phase deformation in the Zambezi belt, and that deformation in the supposedly continuous Damaran belt to the SW was significantly younger.« less" @default.
- W313753412 created "2016-06-24" @default.
- W313753412 creator A5003520200 @default.
- W313753412 creator A5053225811 @default.
- W313753412 creator A5080803285 @default.
- W313753412 date "1985-01-01" @default.
- W313753412 modified "2023-09-26" @default.
- W313753412 title "Structure, age, and regional significance of syntectonic augen gneisses in the Pan-African Zambezi belt, south-central Zambia" @default.
- W313753412 hasPublicationYear "1985" @default.
- W313753412 type Work @default.
- W313753412 sameAs 313753412 @default.
- W313753412 citedByCount "0" @default.
- W313753412 crossrefType "journal-article" @default.
- W313753412 hasAuthorship W313753412A5003520200 @default.
- W313753412 hasAuthorship W313753412A5053225811 @default.
- W313753412 hasAuthorship W313753412A5080803285 @default.
- W313753412 hasConcept C127313418 @default.
- W313753412 hasConcept C151730666 @default.
- W313753412 hasConcept C171701179 @default.
- W313753412 hasConcept C17409809 @default.
- W313753412 hasConcept C197737763 @default.
- W313753412 hasConcept C23295444 @default.
- W313753412 hasConcept C26687426 @default.
- W313753412 hasConcept C77928131 @default.
- W313753412 hasConcept C98742433 @default.
- W313753412 hasConceptScore W313753412C127313418 @default.
- W313753412 hasConceptScore W313753412C151730666 @default.
- W313753412 hasConceptScore W313753412C171701179 @default.
- W313753412 hasConceptScore W313753412C17409809 @default.
- W313753412 hasConceptScore W313753412C197737763 @default.
- W313753412 hasConceptScore W313753412C23295444 @default.
- W313753412 hasConceptScore W313753412C26687426 @default.
- W313753412 hasConceptScore W313753412C77928131 @default.
- W313753412 hasConceptScore W313753412C98742433 @default.
- W313753412 hasLocation W3137534121 @default.
- W313753412 hasOpenAccess W313753412 @default.
- W313753412 hasPrimaryLocation W3137534121 @default.
- W313753412 hasRelatedWork W1971742065 @default.
- W313753412 hasRelatedWork W1976016997 @default.
- W313753412 hasRelatedWork W2022103350 @default.
- W313753412 hasRelatedWork W2032275627 @default.
- W313753412 hasRelatedWork W2044431126 @default.
- W313753412 hasRelatedWork W2051763800 @default.
- W313753412 hasRelatedWork W2079579203 @default.
- W313753412 hasRelatedWork W2130866256 @default.
- W313753412 hasRelatedWork W2160954928 @default.
- W313753412 hasRelatedWork W2167627263 @default.
- W313753412 hasRelatedWork W2181579115 @default.
- W313753412 hasRelatedWork W2270336267 @default.
- W313753412 hasRelatedWork W2338161046 @default.
- W313753412 hasRelatedWork W2604271488 @default.
- W313753412 hasRelatedWork W2766698720 @default.
- W313753412 hasRelatedWork W2988487864 @default.
- W313753412 hasRelatedWork W3170719254 @default.
- W313753412 hasRelatedWork W3175434906 @default.
- W313753412 hasRelatedWork W1793839611 @default.
- W313753412 hasRelatedWork W2499704839 @default.
- W313753412 hasVolume "17" @default.
- W313753412 isParatext "false" @default.
- W313753412 isRetracted "false" @default.
- W313753412 magId "313753412" @default.
- W313753412 workType "article" @default.