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A Mesoproterozoic Continental Flood Rhyolite Province, the Gawler Ranges, Australia: the End Member Example of the Large Igneous Province Clan : Volume 2, Issue 2 (09/09/2010)

By Pankhurst, M. J.

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Book Id: WPLBN0004021779
Format Type: PDF Article :
File Size: Pages 24
Reproduction Date: 2015

Title: A Mesoproterozoic Continental Flood Rhyolite Province, the Gawler Ranges, Australia: the End Member Example of the Large Igneous Province Clan : Volume 2, Issue 2 (09/09/2010)  
Author: Pankhurst, M. J.
Volume: Vol. 2, Issue 2
Language: English
Subject: Science, Solid, Earth
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2010
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Betts, P. G., Schaefer, B. F., Phillips, N., Hand, M., & Pankhurst, M. J. (2010). A Mesoproterozoic Continental Flood Rhyolite Province, the Gawler Ranges, Australia: the End Member Example of the Large Igneous Province Clan : Volume 2, Issue 2 (09/09/2010). Retrieved from http://www.ebooklibrary.org/


Description
Description: GEMOC, Earth and Planetary Sciences, Macquarie University, North Ryde, NSW, 2109, Australia. Rhyolite and dacite lavas of the Mesoproterozoic upper Gawler Range Volcanics (GRV) (>30 000 km3 preserved), South Australia, represent the remnants of one of the most voluminous felsic magmatic events preserved on Earth. Geophysical interpretation suggests eruption from a central cluster of feeder vents which supplied large-scale lobate flows >100 km in length. Pigeonite inversion thermometers indicate eruption temperatures of 950–1100 °C. The lavas are A-type in composition (e.g. high Ga/Al ratios) and characterised by elevated primary halogen concentrations (~1600 ppm Fluorine, ~400 ppm Chlorine). These depolymerised the magma such that temperature-composition-volatile non-Arrhenian melt viscosity modelling suggests they had viscosities of <3.5 log η (Pa s). These physicochemical properties have led to the emplacement of a Large Rhyolite Province, which has affinities in emplacement style to Large Basaltic Provinces. The low viscosity of these felsic magmas has produced a unique igneous system on a scale which is either not present or poorly preserved elsewhere on the planet. The Gawler Range Volcanic Province represents the erupted portion of the felsic end member of the family of voluminous, rapidly emplaced terrestrial magmatic provinces.

Summary
A mesoproterozoic continental flood rhyolite province, the Gawler Ranges, Australia: the end member example of the Large Igneous Province clan

Excerpt
Aiuppa, A., Federico, C., Paonita, A., Pecoraino, G., and Valenza, M.: S, Cl and F degassing as an indicator of volcanic dynamics: The 2001 eruption of Mount Etna, Geophys. Res. Lett., 29, 1559, doi:10.1029/2002gl015032, 2002.; Allen, S. R. and McPhie, J.: The Eucarro rhyolite, Gawler Range Volcanics, South Australia: A > 675 km3, compositionally zoned lava of Mesoproterozoic age, Geol. Soc. Am. Bull., 114, 1592–1609, 2002.; Allen, S. R., Simpson, C. J., McPhie, J., and Daly, S. J.: Stratigraphy, distribution and geochemistry of widespread felsic volcanic units in the Mesoproterozoic Gawler Range Volcanics, South Australia, Aust. J. Earth Sci., 50, 97–112, 2003.; Allen, S. R., McPhie, J., Ferris, G., and Simpson, C.: Evolution and architecture of a large felsic Igneous Province in western Laurentia: The 1.6 Ga Gawler Range Volcanics, South Australia, J. Volcanol. Geoth. Res., 172, 132–147, doi:10.1016/J.Jvolgeores.2005.09.027, 2008.; Bagdassarov, N. S., Dingwell, D. B., and Webb, S. L.: Viscoelasticity of Crystal-Bearing and Bubble-Bearing rhyolite Melts, Phys. Earth Planet. In., 83, 83–99, 1994.; Betts, P. G., Giles, D., Foden, J., Schaefer, B. F., Mark, G., Pankhurst, M. J., Forbes, C. J., Williams, H. A., Chalmers, N. C., and Hills, Q.: Mesoproterozoic plume-modified orogenesis in eastern Precambrian Australia, Tectonics, 28, Tc3006, doi:10.1029/2008tc002325, 2009.; Betts, P. G., Giles, D., Schaefer, B. F., and Mark, G.: 1600–1500 Ma hotspot track in eastern Australia: implications for Mesoproterozoic continental reconstructions, Terra Nova, 19, 496–501, doi:10.1111/J.1365-3121.2007.00778.X, 2007.; Blissett, A. H., Creaser, R. A., Daly, S. J., Flint, R. B., and Parker, A. J.: Gawler Range Volcanics, in: The geology of South Australia, Volume 1, The Precambrian, edited by: Drexel, J. F., Preiss, W. V., and Parker, A. J., Department of Mines and Energy, Adelaide, 106–124, 1993.; Bondre, N. R., Duraiswami, R. A., and Dole, G.: Morphology and emplacement of flows from the Deccan Volcanic Province, India, B. Volcanol, 66, 29–45, doi:10.1007/S00445-003-0294-X, 2004.; Bryan, S.: Silicic Large Igneous Provinces, Episodes, 30, 20–31, 2007.; Bryan, S. E., Riley, T. R., Jerram, D. A., Stephens, C. J., and Leat, P. T.: Silicic volcanism; an undervalued component of large igneous provinces and volcanic rifted margins, Special Paper, Geol. Soc. Am., 362, 97–118, 2002.; Bryan, S. E. and Ernst, R. E.: Revised definition of large igneous provinces (LIPs), Earth-Sci. Rev., 86, 175–202, doi:10.1016/J.Earscirev.2007.08.008, 2008.; Cashman, K., Pinkerton, H., and Stephenson, J.: Introduction to special section: Long lava flows, J. Geophys. Res.-Solid, 103, 27281–27289, 1998.; Christiansen, E. H., Bikun, J. V., Sheridan, M. F., and Burt, D. M.: Geochemical evolution of topaz rhyolites from the Thomas Range and Spor Mountain, Utah, Am. Mineral., 69, 223–236, 1984.; Clemens, J. D., Holloway, J. R., and White, A. J. R.: Origin of an A-type granite; experimental constraints, Am. Mineral., 71, 317–324, 1986.; Coffin, M. F. and Eldholm, O.: Large Igneous Provinces – Crustal Structure, Dimensions, and External Consequences, Rev. Geophys., 32, 1–36, 1994.; Courtillot, V., Davaille, A., Besse, J., and Stock, J.: Three distinct types of hotspots in the Earth's mantle, Earth Planet. Sc. Lett., 205, 295–308, 2003.; Creaser, R. A. and White, A. J. R.: Yardea Dacite; large-volume, high-temperature felsic volcanism from the middle Proterozoic of South Australia, Geology, 19, 48–51, 1991.; Dingwell, D. B., Scarfe, C. M., and Cronin, D. J.: The effect of fluorine on viscosities in the system Na2O-Al2O3SiO2; implications for phonolites, trachytes and rhyolites, Am. Mineral., 70, 80–87, 1985.; Dingwell, D. B., Brearley, M., and Virgo, D.: The dual role of ferric iron in liquid silicates: Effects on density and viscosity, Chem. Geol., 70

 

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