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dc.contributor.authorDrivenes, Kristian
dc.contributor.authorB. Larsen, Rune
dc.contributor.authorMüller, Axel Bernd
dc.contributor.authorSørensen, Bjørn Eske
dc.date.accessioned2020-05-14T10:18:26Z
dc.date.available2020-05-14T10:18:26Z
dc.date.created2016-03-14T09:45:51Z
dc.date.issued2016
dc.identifier.citationLithos. 2016, 252-253 57-75.en_US
dc.identifier.issn0024-4937
dc.identifier.urihttps://hdl.handle.net/11250/2654424
dc.description.abstractThe megacrystic, coarse-grained granite of the Land’s End granitic complex, SW England, has been investigated by analyzing fluid inclusions, trace elements, and cathodoluminescence textures of quartz. By applying the TitaniQ geothermobarometer together with the cathodoluminescence textures, a two-stage emplacement process is proposed. K-feldspar and quartz phenocrysts crystallized in a deep magma chamber at ca. 18–20 km depth. The phenocrysts were transported together with the melt to a shallow emplacement depth at ca. 5–9 km in multiple intrusive events, causing the composite appearance of the granitic complex. This model of emplacement concurs with similar granites from the Erzgebirge. At the emplacement level, the magma exsolved an aqueous fluid with average salinity of 17.3% m/m NaCl and 9.7% m/m CaCl2. Fluids with higher salinities were exsolved deeper in the system, as the magma experienced stages of water saturation and water undersaturation during ascent from the deep magma chamber. The complex fluid inclusion textures are the results of multiple stages of entrapment of aqueous fluids in the host phases as multiple recharge events from the deeper magma chamber supplied fresh melts and aqueous volatiles. Titanium contents in quartz are closely related to the panchromatic cathodoluminescence intensity, and the Al/Ti ratio is reflected by the 3.26 eV/2.70 eV ratio of hyperspectral cathodoluminescence.en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.titleCrystallization and uplift path of late Variscan granites evidenced by quartz chemistry and fluid inclusions: Example from the Land's End granite, SW Englanden_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.source.pagenumber57-75en_US
dc.source.volume252-253en_US
dc.source.journalLithosen_US
dc.identifier.doi10.1016/j.lithos.2016.02.011
dc.identifier.cristin1344201
dc.description.localcodeThis article will not be available due to copyright restrictions (c) 2016 by Elsevieren_US
cristin.unitcode194,64,90,0
cristin.unitnameInstitutt for geovitenskap og petroleum
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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