 | | Journal (article/letter/editorial) | | Bagdonas1,*, Carol D. Frost1,*, and C. Mark Fanning2 Department of Geology and Geophysics, University of Wyoming...of central Wyoming compose part of the Wyoming province, an Archean craton that extends across most of...Dakota (Fig. 1). Today rocks of the Archean Wyoming province are exposed in the cores of basement-involved...sub-provinces (Fig. 1). The Montana metasedimentary province lies in the northwest part of the craton and is...to 4.0 Ga (Mueller and Frost 2006). The Wyoming province grew southward (present-day coordinates) through |  | | Journal (article/letter/editorial) | | Building, Queen’s Road, Bristol BS8 1RJ, UK 3 Department of Exploration, Helmholtz Institute Dresden‑Rossendorf...Nazca Group), 13–14 Ma (e.g. Huaylillas and Altos de Pica ignimbrites) and <10 Ma (Altiplano and Puna...Francis et al. 1989; de Silva 1989a, b; Wörner et al. 2000a; Lindsay et al. 2001; de Silva et al. 2006;...Lipman and Glazner 1991; and references therein). De Silva (1989a, b) introduced the flare-up concept...ignimbrite magmas derived from the middle crust (e.g. de Silva 1989a; Lindsay et al. 2001; Kay et al. 2010) |  | | Journal (article/letter/editorial) | | Frost1,*, B. Ronald Frost1, and James S. Beard2 Department of Geology and Geophysics, University of Wyoming...the main subcaldera magma reservoir and extra-caldera lavas (Hildreth et al. 1991). The rhyolites have...Late Cretaceous Tuolumne intrusive series in the Sierra Nevada batholith, California (Coleman et al. 2012)...associated felsic volcanism of the Etendeka-Paraná province. The ~23 km diameter intrusive complex is composed...plutonic material is ignimbrite from the Cerro Galán caldera on the eastern edge of the Puna plateau (Folkes |  | | Journal (article/letter/editorial) | | occurrence of petrological cycles associated with caldera-forming events in long-lived magmatic provinces...1979; Lipman 1984; Sparks et al. 1984; Marsh 1989a; de Silva 1991) have greatly helped crystallizing ideas...schematic diagrams for several examples of large caldera systems in the U.S.A., as well as the more recent...and Sparks (2013), Cashman and Giordano (2014), and de Silva and Gregg (2014)]. At this stage, it is clear...three big active caldera systems in the Western U.S.A. There are many other caldera systems around the |  | | Journal (article/letter/editorial) | | University, PO Box 600, Wellington 6140, New Zealand Department of Earth Sciences, Durham University, Science... The ignimbrite is crystal rich (20–30%), of rhyodacite to low-silica rhyolite composition and lacks...from Mangakino is also crystal-rich (20–30%), of rhyodacite to low-silica rhyolite composition, and shows...38–57 and Dungan, 2002; Bachmann et al., 2002), Cerro Galan ignimbrite (Folkes et al., 2011; Francis et...et al., 1996)? The rapid rates of generation and ‘de-generation’ by crystallisation of eruptible melt-dominant |
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