Matches in SemOpenAlex for { <https://semopenalex.org/work/W1582227211> ?p ?o ?g. }
Showing items 1 to 64 of
64
with 100 items per page.
- W1582227211 endingPage "361" @default.
- W1582227211 startingPage "354" @default.
- W1582227211 abstract "A whole-rock Rb-Sr isochron for the Donegal Granite gives an age of 470±1 m.y., which places it between the Older Granites (pre-500 m.y.) and the Newer Granites (400± m.y.) of Scotland and Ireland. The initial Sr87/Sr86 ratio of the Donegal Granite, together with the field evidence, suggests that some contamination by crustal material has occurred. Two groups of Dalradian rocks of near stratigraphic equivalence--sillimanite-grade Connemara Schist from western Ireland and metasedimentary rocks of lower green-schist grade from Islay, Scotland--yield isochron ages of 490±30 and 540±20 m.y., respectively. It is postulated that the latter is very nearly the age of the main Dalradian metamorphism, which is shown from stratigraphic evidence to have occurred probably during the Middle or Late Cambrian. The Connemara Schist, because of higher metamorphic temperature, took longer to cool to a temperature at which homogenization of strontium and rubidium isotopes ceased in the whole rock on the scale of a hand specimen. Previous work has shown that individual minerals in the Connemara Schist remained as open chemical systems ntil about 450 m.y. ago, and that low-grade Dalradian slate became closed to argon diffusion at 505±6 m.y. ago." @default.
- W1582227211 created "2016-06-24" @default.
- W1582227211 creator A5062630474 @default.
- W1582227211 creator A5064742511 @default.
- W1582227211 creator A5072259121 @default.
- W1582227211 date "1969-01-01" @default.
- W1582227211 modified "2023-09-27" @default.
- W1582227211 title "Isochron Study of Donegal Granite and Certain Dalradian Rocks of Britain: Chapter 26: Central Orogenic Belt" @default.
- W1582227211 hasPublicationYear "1969" @default.
- W1582227211 type Work @default.
- W1582227211 sameAs 1582227211 @default.
- W1582227211 citedByCount "0" @default.
- W1582227211 crossrefType "journal-article" @default.
- W1582227211 hasAuthorship W1582227211A5062630474 @default.
- W1582227211 hasAuthorship W1582227211A5064742511 @default.
- W1582227211 hasAuthorship W1582227211A5072259121 @default.
- W1582227211 hasConcept C101139013 @default.
- W1582227211 hasConcept C112764850 @default.
- W1582227211 hasConcept C127313418 @default.
- W1582227211 hasConcept C170187044 @default.
- W1582227211 hasConcept C17409809 @default.
- W1582227211 hasConcept C26687426 @default.
- W1582227211 hasConcept C2780200354 @default.
- W1582227211 hasConcept C46381822 @default.
- W1582227211 hasConcept C487381 @default.
- W1582227211 hasConceptScore W1582227211C101139013 @default.
- W1582227211 hasConceptScore W1582227211C112764850 @default.
- W1582227211 hasConceptScore W1582227211C127313418 @default.
- W1582227211 hasConceptScore W1582227211C170187044 @default.
- W1582227211 hasConceptScore W1582227211C17409809 @default.
- W1582227211 hasConceptScore W1582227211C26687426 @default.
- W1582227211 hasConceptScore W1582227211C2780200354 @default.
- W1582227211 hasConceptScore W1582227211C46381822 @default.
- W1582227211 hasConceptScore W1582227211C487381 @default.
- W1582227211 hasLocation W15822272111 @default.
- W1582227211 hasOpenAccess W1582227211 @default.
- W1582227211 hasPrimaryLocation W15822272111 @default.
- W1582227211 hasRelatedWork W1968394942 @default.
- W1582227211 hasRelatedWork W1971670231 @default.
- W1582227211 hasRelatedWork W1991701166 @default.
- W1582227211 hasRelatedWork W1998370907 @default.
- W1582227211 hasRelatedWork W2007179398 @default.
- W1582227211 hasRelatedWork W2021590279 @default.
- W1582227211 hasRelatedWork W2023661605 @default.
- W1582227211 hasRelatedWork W2037411083 @default.
- W1582227211 hasRelatedWork W2045462758 @default.
- W1582227211 hasRelatedWork W2051245013 @default.
- W1582227211 hasRelatedWork W2062009148 @default.
- W1582227211 hasRelatedWork W2085936917 @default.
- W1582227211 hasRelatedWork W2093072679 @default.
- W1582227211 hasRelatedWork W2096723489 @default.
- W1582227211 hasRelatedWork W2107845159 @default.
- W1582227211 hasRelatedWork W2124362366 @default.
- W1582227211 hasRelatedWork W2129980100 @default.
- W1582227211 hasRelatedWork W2156860638 @default.
- W1582227211 hasRelatedWork W2158901503 @default.
- W1582227211 hasRelatedWork W2159247473 @default.
- W1582227211 hasVolume "106" @default.
- W1582227211 isParatext "false" @default.
- W1582227211 isRetracted "false" @default.
- W1582227211 magId "1582227211" @default.
- W1582227211 workType "article" @default.