 | | Journal (article/letter/editorial) | | Petrogenesis of the Mesozoic Sistefjell syenite intrusion, Dronning 18 Maud Land,Antarctica and surrounding low-...e-mail: dphillip@unimelb.edu.au ABSTRACT The Sistefjell intrusion is approximately 10km in diameter and...the largest Mesozoic pluton in western Dronning Maud Land. The main intrusive phase is a syenite consisting...consisting of >78 modal % alkali feldspar, quartz, sodic-calcic amphibole, aegirine-augite, and minor fayalite...Associated sills and dykes include microsyenite, quartz porphyry and microgranite. The variation in chemical |  | | Report (chapter) | | Cambrian metamorphism in western Dronning Maud Land, East Antarctica: a carbon and oxygen isotope study of...The Sverdrupfjella Group in western Dronning Maud Land is a 1200 to 900 Ma orogenic belt that experienced...Geochronological studies in central and eastern Dronning Maud Land (Fig. 1) show that this early Cambrian...al. 1993; Fitzsimons 1998). The Maud Belt of western Dronning Maud Land is the westernmost part of the...S r and K - A r cooling ages are recorded in the Maud Belt (e.g. Moyes et al. 1993; Krynauw 1996), these |  | | | | Straumsvola Tvora alkaline plutons, Dronning Maud Land, Antarctica and their association with the Karoo large...ACT Jurassic dykes of western Dronning Maud Land (Antarctica) form a minor component of the Karoo large...elsewhere in the Karoo (southern Africa and Dronning Maud Land). Later-stage (170 Ma) felsic (phonolite comendite)...now represented by western Dronning Maud Land in East Antarctica (Marsh et al., 1997; Le Gall et al....the Svedrupfjella region of western Dronning Maud Land (Fig. 1). The syenites range from Si-undersaturated |  | | Journal (article/letter/editorial) | | the Straumsvola complex, western Dronning Maud Land, Antarctica Chris Harris1 · Tanya Dreyer1 · Petrus...nepheline syenite pluton in Western Dronning Maud Land, Antarctica. The average peralkalinity index (PI = molecular...crystallization of parental peralkaline magma of quartz trachyte composition, and internal mineral segregation...7075 ± 0.0032), and have an average εNd of − 12.0. Quartz phenocrysts have δ18O values of 8.4–9.2‰, which...with bulk rock. Differences in the δ18O values of quartz and aegirine (average Δquartz−aegirine = 3.5‰) |  | Sirevaag, Hallgeir, Jacobs, Joachim, Ksienzyk, Anna K., Dunkl, István, Marschall, Horst R. (2018) Extent, thickness and erosion of the Jurassic continental flood basalts of Dronning Maud Land, East Antarctica: A low-T thermochronological approach. Gondwana Research, 61. 222-243 doi:10.1016/j.gr.2018.04.017 | Journal (article/letter/editorial) | | continental flood basalts of Dronning Maud Land, East Antarctica: A low-T thermochronological approach...continental flood basalts of Dronning Maud Land, East Antarctica: A low-T thermochronological approach...continental flood basalts of Dronning Maud Land, East Antarctica: a low-T thermochronological approach...1 ACCEPTED MANUSCRIPT Abstract The Dronning Maud Land Mountains form a c. 1500 km long, coast-parallel...as smaller RI remnants in western Dronning Maud Land. By investigating the paleo-thermal effect of |  | | Report (volume) | | granulites during Ordovician intraplate transpression, eastern Arunta Inlier, central Australia PARRISH, P. The...igneous intrusions in central Dronning Maud Land, East Antarctica CARTWRIGHT, L, BUICK, I. S. & VRY, J...Cambrian metamorphism in western Dronning Maud Land, East Antarctica: a carbon and oxygen isotope study of...Prydz-Leeuwin orogenic system which linked Africa, Antarctica and Australia, incorporating Archaean and Proterozoic...Scrimgeour & Raith discuss two terrains in the eastern Arunta Inlier with distinct metamorphic histories |  | Ashworth, L., Kinnaird, J.A., Nex, P.A.M., Harris, C., Müller, A.B. (2020) Origin of rare-element-mineralized Damara Belt pegmatites: A geochemical and light stable isotope study. Lithos, 372. 105655pp. doi:10.1016/j.lithos.2020.105655 | Journal (article/letter/editorial) | | Crystallization temperatures calculated using Ti-in-quartz and O-isotope 1 Journal Pre-proof thermometry...mined for petalite, amblygonite, lepidolite, beryl, quartz, pollucite, bismuth, and bismuth oxides since the...variable, is generally a few metres thick. It contains quartz, muscovite and garnet (spessartine) in an albite-rich...with 5 Journal Pre-proof albite, muscovite, and quartz. The Intermediate Zone can be subdivided into Perthite...variable thicknesses. The Perthite Zone is composed of quartz, Li-muscovite, lepidolite, microcline-perthite |
|
