Blar i NGU Open Archive på forfatter "Andersen, Tom"
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Age and petrogenesis of the Tinn granite, Telemark, South Norway, and its geochemical relationship to metarhyolite of the Rjukan Group.
Andersen, Tom; Andresen, Arild; Sylvester, Arthur G. (NGU Bulletin (440), Journal article, 2002)The Tinn granite is a Mid Proterozoic, foliated pluton, situated in the central part of the Telemark Sector, South Norway. It is spatially associated with metarhyolite belonging to the Tuddal Formation of the Rjukan Group ... -
Melt-mineral-fluid interaction in peralkaline silicic intrusions in the Oslo Rift, Southeast Norway. IV. Fluid inclusions in the Sande nordmarkite.
Andersen, Tom (NGU Bulletin (417), Journal article, 1990)The mildly peralkaline Sande nordmarkite (quartz syenite) intrusion contains interstitial quartz and mafic minerals (alkali amphibloe, ilmenite, titanomagnetite, zirkon, sphene + calcite). Three generations of fluid ... -
Microsyenite from Lake Mykle, Oslo Rift: Subvolcanic rocks transitional between larvikite and nordmarkite
Andersen, Tom; Sørensen, Henning (NGU Bulletin (441), Journal article, 2003)A small body of trachyte or microsyenite cropping out east of lake Mykle in the Vestfold Graben of the Oslo Rift probably represents a subvolcanic intrusion emplaced at a fairly early stage of the intrusive history of the ... -
New data on net-veined complexes in the Oslo Rift, southeastern Norway.
Andersen, Tom; Sørensen, Henning; Morogan, Victoria (NGU Bulletin (442), Journal article, 2004)Bodies of basaltic trachyandesite occur in the endocontact zone of the Mykle granite against the large Skrim larvikite massif in the southern part of the Oslo igneous province.\rNew Sr and Nd isotope data indicate that the ... -
Timing and tectonic significance of Sveconorwegian A-type granitic magmatism in Telemark, southern Norway: New results from laser-ablation ICPMS U-Pb dating of zircon
Andersen, Tom; Sylvester, Arthur G.; Graham, Stuart (NGU Bulletin (447), Journal article, 2007)The ages of six Sveconorwegian A-type granites without penetrative deformational fabric and an intrusive rhyolite porphyry from Telemark, southern Norway, have been determined by laser ablation inductively coupled plasmasource ... -
Timing of late- to post-tectonic Sveconorwegian granitic magmatism in South Norway.
Andersen, Tom; Sylvester, Arthur G.; Andresen, Arild (NGU Bulletin (440), Journal article, 2002)Dating of late- to post-tectonic Sveconorwegian granitic intrusions from South Norway by the SIMS U-Pb method on zircons and by internal Pb-Pb isochrons on rock-forming minerals indicates a major event of granitic magmatism ...