@prefix pubblicazioni: . @prefix unitaDiPersonaleInterno: . @prefix prodotto: . unitaDiPersonaleInterno:MATRICOLA6911 pubblicazioni:autoreCNRDi prodotto:ID29126 . @prefix prodottidellaricerca: . @prefix istituto: . istituto:CDS043 prodottidellaricerca:prodotto prodotto:ID29126 . @prefix modulo: . modulo:ID8075 prodottidellaricerca:prodotto prodotto:ID29126 . @prefix rdf: . @prefix retescientifica: . prodotto:ID29126 rdf:type retescientifica:ProdottoDellaRicerca , prodotto:TIPO1101 . @prefix rdfs: . prodotto:ID29126 rdfs:label "Two-stage growth of laccoliths at Elba Island, Italy. (Articolo in rivista)"@en . @prefix xsd: . prodotto:ID29126 pubblicazioni:anno "2002-01-01T00:00:00+01:00"^^xsd:gYear ; pubblicazioni:doi "10.1130/0091-7613(2002)030<0983:TSGOLA>2.0.CO;2"^^xsd:string . @prefix skos: . prodotto:ID29126 skos:altLabel "
Rocchi S. (1), Westerman D.S. (2), Dini A. (3), Innocenti F. (1), Tonarini S. (3) (2002)
Two-stage growth of laccoliths at Elba Island, Italy.
in Geology (Boulder Colo.); Geological Society Of America, Inc., Boulder (Stati Uniti d'America)
"^^rdf:HTML ; pubblicazioni:autori "Rocchi S. (1), Westerman D.S. (2), Dini A. (3), Innocenti F. (1), Tonarini S. (3)"^^xsd:string ; pubblicazioni:paginaInizio "983"^^xsd:string ; pubblicazioni:paginaFine "986"^^xsd:string ; pubblicazioni:altreInformazioni "The emplacement of granitic melts contributes prominently to the processes of mass redistribution in the continental crust, but the way felsic intrusions gain space and grow has been debated throughout the twentieth century. In the last decade, new ideas on magma ascent by dikes, tabular shape of intrusions, and room-generating processes (fault opening, roof lifting and floor depression) have helped to mitigate the space problem, and the process of growth of felsic intrusions has gained renewed interest. This study provides new data for such a debate and shed new lights on the similarr intrusive environment for granite laccoliths and plutons."^^xsd:string ; pubblicazioni:numeroVolume "30"^^xsd:string . @prefix ns11: . prodotto:ID29126 pubblicazioni:rivista ns11:ID307092 ; pubblicazioni:note "Impact Factor 2,649"^^xsd:string ; pubblicazioni:pagineTotali "4"^^xsd:string ; pubblicazioni:numeroFascicolo "11"^^xsd:string ; pubblicazioni:descrizioneSinteticaDelProdotto "The unique tectonic history of Elba Island allows the direct collection of quantitative\nf\u00ECeld data on several shallow intrusions of similar composition, all emplaced within a\nshort time span in a uniform tectonic setting. Indeed, a shallow-level late Miocene\nigneous complex has been decapitated with its upper slice translated and tilted by\ntectonic processes, resulting in serendipitous roof and floor exposures of several\nintrusive layers that constitute an outstanding example of three Christmas-tree laccoliths nested within each other. The geometric parameters of the laccolith latersare the first reported coherent field data set, and are used to test hypotheses\nrecently outlined for the emplacement of tabular igneous intrusion. \n New speculat\u00ECons are proposed concerning the two-stage growth of shallow-level intrusion, and the relationship between that process and the formation of plutons (generally larger, wider and deeper inrusions than laccoliths). \n\n"^^xsd:string ; skos:note "ISI Web of Science (WOS)"^^xsd:string ; pubblicazioni:affiliazioni "(1) Universit\u00E0 di Pisa, Dipartimento di Scienze della Terra, Via S. Maria 53,56126,\nPisa, Italy\n(2) Norwich University, Department of Geology, Northfield, Vermont 05663, USA\n(3) CNR, Istituto Geoscienze e Georisorse-CNR, Via Moruzzi 1,56124, Pisa, Italy"^^xsd:string ; pubblicazioni:titolo "Two-stage growth of laccoliths at Elba Island, Italy."^^xsd:string ; prodottidellaricerca:abstract "At Elba Island (Italy), nine shallow-levei late Miocene granite porphyry\nlayers connected by feeder dikes built up three nested Christmas-tree laccoliths. The intrusive units have been defined and correlated between exposures in western and centrai Elba on the basis of field,petrographic, and geochemical data, along with intrusive relationships. Detailed mapping and reconstuction of tectonic history led to restoration of the originai 5-km-thick sequence and determination of the dimensional parameters of each intrusive layer. Th\u00E8 laccolith layers were emplaced\nat depths between 1.9 and 3.7 km, exploiting physical discontinuities that served as crustal magma traps inside a stack of nappes. The intrusive layers are 50-700 m thick, with diameters between 1.6 and 10 km. Length to thickness relationships for individuai laccolith layers show a power-law correlation that does not f\u00ECt the known\ndimensional distribution for laccoliths, but instead fit a line with a slope typical of the theoretical vertical-inflation stage of laccolith development This is interpreted as the first reported natural example of the occurrence of a vertical-inflation stage during laccolith growth. The dimensional data for Elba intrusive layers also suggest\nthat laccoliths and plutons commonly form by amalgamation of smaller sheet-like bodies, while multilayer laccoliths form when coalescence faiis, possibly owing to the large availability of crustal magma traps."@en . @prefix ns12: . prodotto:ID29126 pubblicazioni:editore ns12:ID297 ; prodottidellaricerca:prodottoDi istituto:CDS043 , modulo:ID8075 ; pubblicazioni:autoreCNR unitaDiPersonaleInterno:MATRICOLA6911 . @prefix parolechiave: . prodotto:ID29126 parolechiave:insiemeDiParoleChiave . ns12:ID297 pubblicazioni:editoreDi prodotto:ID29126 . ns11:ID307092 pubblicazioni:rivistaDi prodotto:ID29126 . parolechiave:insiemeDiParoleChiaveDi prodotto:ID29126 .