Sökning: onr:"swepub:oai:DiVA.org:uu-132696" > Magma mixing in the...
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000 | 04298naa a2200481 4500 | |
001 | oai:DiVA.org:uu-132696 | |
003 | SwePub | |
008 | 101025s2011 | |||||||||||000 ||eng| | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-1326962 URI |
024 | 7 | a https://doi.org/10.1007/s00410-010-0596-x2 DOI |
040 | a (SwePub)uu | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Wiesmaier, Sebastianu Department of Geology, Trinity College Dublin, 2 College Green, Dublin 2, Ireland4 aut |
245 | 1 0 | a Magma mixing in the 1100 AD Montaña Reventada composite lava flow, Tenerife, Canary Islands :b Interaction between rift zone and central volcano plumbing systems |
264 | c 2011-02-03 | |
264 | 1 | b Springer,c 2011 |
338 | a print2 rdacarrier | |
500 | a Erratum in: Contributions to Mineralogy and Petrology, 2011, vol. 162, pp 671-673, doi: 10.1007/s00410-011-0668-6 | |
520 | a Zoned eruption deposits commonly show a lower felsic and an upper mafic member, thought to reflect eruption from large, stratified magma chambers. In contrast, the Montaña Reventada composite flow (Tenerife) consists of a lower basanite and a much thicker upper phonolite. A sharp interface separates basanite and phonolite, and chilled margins at this contact indicate the basanite was still hot upon emplacement of the phonolite, i.e. the two magmas erupted in quick succession. Four types of mafic to intermediate inclusions are found in the phonolite. Inclusion textures comprise foamy quenched ones, others with chilled margins and yet others that are physically mingled, reflecting progressive mixing with a decreasing temperature contrast between the end-members. Analysis of basanite, phonolite and inclusions for majors, traces and Sr, Nd and Pb isotopes show the inclusions to be derived from binary mixing of basanite and phonolite end-members in ratios of 2:1 to 4:1. Although, basanite and phonolite magmas were in direct contact, contrasting 206Pb/204Pb ratios show that they are genetically distinct (19.7193(21)–19.7418(31) vs. 19.7671(18)–19.7807(23), respectively). We argue that the Montaña Reventada basanite and phonolite first met just prior to eruption and had limited interaction time only. Montaña Reventada erupted from the transition zone between two plumbing systems, the phonolitic Teide-Pico Viejo complex and the basanitic Northwest rift zone. A rift zone basanite dyke most likely intersected the previously emplaced phonolite magma chamber. This led to eruption of geochemically and texturally unaffected basanite, with the inclusion-rich phonolite subsequently following into the established conduit. | |
650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskap0 (SwePub)1052 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciences0 (SwePub)1052 hsv//eng |
653 | a Magma mixing | |
653 | a basanite | |
653 | a phonolite | |
653 | a Tenerife | |
653 | a Canary Islands | |
653 | a Reventada | |
653 | a Earth sciences | |
653 | a Geovetenskap | |
653 | a Earth Science with specialization in Mineral Chemistry, Petrology and Tectonics | |
653 | a Geovetenskap med inriktning mot mineralogi, petrologi och tektonik | |
700 | 1 | a Deegan, Frances M,d 1983-u Uppsala universitet,Berggrundsgeologi4 aut0 (Swepub:uu)frade877 |
700 | 1 | a Troll, Valentin Ru Uppsala universitet,Berggrundsgeologi4 aut0 (Swepub:uu)valtr808 |
700 | 1 | a Carracedo, Juan Carlosu Estación Volcanológica de Canarias, IPNA-CSIC, Av. Astrofísica Francisco Sanchez 3, 38206 La Laguna, Tenerife, Spain4 aut |
700 | 1 | a Chadwick, Jane Pu Department of Petrology (FALW), Vrjie Universiteit, 1081 HV Amsterdam, The Netherlands4 aut |
700 | 1 | a Chew, David Mu Department of Geology, Trinity College Dublin, 2 College Green, Dublin 2, Ireland4 aut |
710 | 2 | a Department of Geology, Trinity College Dublin, 2 College Green, Dublin 2, Irelandb Berggrundsgeologi4 org |
773 | 0 | t Contributions to Mineralogy and Petrologyd : Springerg 162:3, s. 651-669q 162:3<651-669x 0010-7999x 1432-0967 |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-132696 |
856 | 4 8 | u https://doi.org/10.1007/s00410-010-0596-x |
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