Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-19T02:08:29.209Z Has data issue: false hasContentIssue false
  • English
  • Français

Trace element chemistry and textures of quartz during the magmatic hydrothermal transition of Oslo Rift granites

Published online by Cambridge University Press:  05 July 2018

R. B. Larsen ,
F. Jacamon  and
A. Kronz
R. B. Larsen*
Affiliation:
Department of Geology and Mineral Resources Engineering, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
F. Jacamon
Affiliation:
37 rue Javouhey, 97360 Mana, French Guiana
A. Kronz
Affiliation:
EPMA laboratory, Geowissenschaftliches Zentrum der Universität Göttingen, Germany
*
* E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

This study documents the textures and chemical evolution of igneous quartz (Qz) in granite from the Oslo Rift (Norway) during the magmatic-hydrothermal transition. Contrary to the other major igneous phases, primary quartz is well preserved. SEM-CL imaging documents four types of quartz (Qz1— Qz4). Qz1: bright primary magmatic quartz that grew under H2O-undersaturated conditions and developed a conspicuous sector zoning. Qz2: light grey luminescent secondary quartz that surrounds Qz1 and altered Qz1 in a ‘non-destructive’ process. Qz3: is usually darker than Qz2 and intersects Qz1 and Qz2. It is formed by dissolution/recrystallization processes involving saline deuteric fluids. Qz4: found in narrow cracks and patches of black quartz intersecting all the other types. EPMA in situ analyses of the different quartz generations confirm that the intensity of luminescence of quartz is positively correlated with the Ti content of the quartz. Aluminium and K are mostly incorporated in quartz in the form of [AlO4/K+]0 centre defects. In the Drammen granite, the Ti and Al contents of Qz1 averages 200 ppm and 80 ppm respectively. Titanium in Qz1 varies from 50 to 95 ppm in the peralkaline granite known as ekerite, whereas Al is irregular and ranges between 100 ppm and values below the limit of detection (LODAl at 2σ = 14 ppm). In all samples, Qz2 and Qz3 are strongly depleted in Ti and Al compared to Qz1. Either the Ti content in Qz2 is falling gradually towards Qz1 or more abruptly, whereas it is sharp from Qz3 towards Qz1 and Qz2. Potassium is variable in all four quartz types and samples, and ranges from values below the detection limit (LODk, at 2σ = 8 ppm) to 120 ppm. Grains in Qz4, being only 1–2µm wide, could not be resolved with the EPMA beam. In all granites, quartz crystallized from haplogranitic melts at P ~1.5 kbar and T = 700—750°C. SEM-CL and EPMA studies of igneous Oslo Rift quartz illustrate vividly the complex chemical and physical processes that characterize the magmatic-hydrothermal transition in shallow granitic systems and show that the chemistry of primary aqueous fluids is strongly modified from its primary igneous composition before eventually being expelled from the granitic system and perhaps incorporated in ore-forming hydrothermal convection systems.

Keywords

quartztrace elementsSEM-CL texturesfluid/rock interactiondeuteric alterationekeritegranitesOslo Rift.
Type
Research Article
Information
Mineralogical Magazine , Volume 73 , Issue 4 , August 2009 , pp. 691 - 707
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2009

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Allegre, C.J., Provost, A. and Jaupart, C. (1981) Oscillatory zoning: a pathological case of crystal growth. Nature, 294, 223—228.CrossRefGoogle Scholar
Andersen, T., Rankin, A.H., and Hansteen, T.H. (1990) Melt-mineral-fluid interaction in peralkaline silicic intrusions in the Oslo Rift, Southeast Norway. (III) Alkali geothermometry based on bulk fluid inclusions content. Norges Geologiske Unders0kelse Bulletin, 417, 33—40.Google Scholar
Armstrong, J.T. (1995) CITZAF: A package of correction programs for the quantitative electron microbeam X-ray analysis of thick polished materials, thin films, and particles. Microbeam Analysis, 4, 177—200.Google Scholar
Br<gger, W.C. (1906) Eine Sammlung der wichtigsten Typen der Eruptivgesteine des Kristianiagebietes. Nyt Magazin fUr Naturvidenskaberne, 44, 115–144.Google Scholar
Carmichael, I.S.E. and MacKenzie, W.S. (1963) Feldspar-liquid equilibria in pantellerites: an experimental study. American Journal of Science, 261, 382—396.CrossRefGoogle Scholar
Carmichael, I.S.E. and MacKenzie, W.S. (1963) Feldspar-liquid equilibria in pantellerites: an experimental study. American Journal of Science, 261, 382—396.CrossRefGoogle Scholar
Dietrich, R.V., Heier, K.S. and Taylor, S.R. (1965) Studies on the igneous rock complex of the Oslo Region. XX. Petrology and geochemistry of ekerite. Skrifter Norske Videnskapers Akademi Oslo. I. Mat.- Naturv. Kl. Ny ser, 19, 31 pp.Google Scholar
Gaut, A. (1981) Field relations and petrography of the biotite granites of the Oslo region. Norges Geologiske Unders0kelse Bulletin, 367, 39—64.Google Scholar
Geyti, A. and Sch0nwandt H.K. (1979) Bordvika — possible porphyry molybdenum occurrences within the Oslo Rift, Norway. Economic Geology, 74, 1211–1220.CrossRefGoogle Scholar
Hansteen, T.H. and Burke, E.A. (1990) Melt-mineral- fluid interaction in peralkaline silicic intrusions in the Oslo Rift, Southeast Norway. (II). High temperature fluid inclusions in the Eikeren Skrim complex. Norges Geologiske Unders0kelse Bulletin, 417, 15—32.Google Scholar
Ihlen, P.M., Tr0nnes, R. and Vokes, F.M. (1982) Mineralization, wall rock alteration and zonation of ore deposits associated with the Drammen Granite in the Oslo region, Norway. Metallization Associated with Acid Magmatism, 6, 111–136.Google Scholar
Jacamon, F. and Larsen, R.B. (2009) Trace element evolution of quartz in the charnockitic Kleivan granite, SW Norway: The Ge/Ti ratio of quartz as an index of igneous differentiation. Lithos, 107, 281—191.CrossRefGoogle Scholar
Kerrick, D.M. and Jacobs, G.K. (1981) A modified Redlich-Kwong equation of state for H2O, CO2 and H2O-CO2 mixtures at elevated pressures and temperatures. American Journal of Science, 281, 735—767.CrossRefGoogle Scholar
Landtwing, M. and Pettke, T. (2005) Relationships between SEM-cathodoluminescence response and trace-element composition of hydrothermal vein quartz. American Mineralogist, 90, 122—131.CrossRefGoogle Scholar
Larsen, R.B., Polve, M. and Juve, G. (2000) Granitic pegmatite quartz from Evje-Iveland: trace element chemistry and implications for high purity quartz formation. Bulletin Geological Survey Norway, 436, 57—65.Google Scholar
Larsen, R.B., Henderson, H., Ihlen, P.M. and Jacamon, F. (2004) Distribution and petrogenetic behaviour of trace elements in granitic pegmatite quartz from South Norway. Contributions to Mineralogy and Petrology, 147, 615–628.CrossRefGoogle Scholar
Lowenstern, J.B. (1995) Applications of silicate-melt inclusions to the study of magmatic volatiles. Pp. 71-99 in: Magmas, fluids and ore deposits (J.F.H Thompson, editor). Short Course 23, Mineralogical Association of Canada.Google Scholar
Müller, A., Kronz, A. and Breiter, K. (2002) Trace elements and growth patterns in quartz: a fingerprint of the evolution of the subvolcanic Podlesi Granite System (Krune hory Mts., Czech Republic). Bulletin Czech Geological Survey, 77, 135–145.Google Scholar
Müller, A., Rene, M., Behr, H.J. and Kronz, A. (2003) Trace elements and cathodoluminescence of igneous quartz in topaz granites from the Hub Stock (Slavkovsk? Les Mts., Czech Republic). Mineralogy and Petrology, 79, 167–191.CrossRefGoogle Scholar
Müller, A., Breiter, K., Seltmann, R. and Pecskay, Z. (2005) Quartz and feldspar zoning in the eastern Erzgebirge volcano-plutonic complex (Germany, Czech Republic): evidence of multiple magma mixing. Lithos, 80, 201–227.CrossRefGoogle Scholar
Neumann, E-R. (1976) Compositional relations among pyroxenes, amphiboles and other mafic phases in the Oslo region plutonic rocks. Lithos, 9, 85–109.CrossRefGoogle Scholar
Neumann, E-R., Andersen, T. and Hansteen, T.H. (1990) Melt-mineral-fluid interaction in peralkaline silicic intrusions in the Oslo Rift, Southeast Norway. 1. Distribution of elements in the Eikeren ekerite. Norges Geologiske Unders0kelse Bulletin, 417, 1–13.Google Scholar
Neumann, E-R., Olsen, K.H., Baldridge, W.S. and Sundvoll, B. (1992) The Oslo Rift: A review. Tectonophysics, 208, 1–18.CrossRefGoogle Scholar
Olsen, K.I. and Griffin W.L. (1984a) Fluid inclusions study of the Drammen granite, Oslo Paleorift, Norway I. Microthermometry. Contributions to Mineralogy and Petrology 87, 1–14.CrossRefGoogle Scholar
Olsen, K.I. and Griffin, W.L. (1984b). Fluid inclusions study of the Drammen granite, Oslo Paleorift, Norway II. Gas- and leachate analyses of miarolytic quartz. Contributions to Mineralogy and Petrology, 87, 15–23.CrossRefGoogle Scholar
Rasmussen, E., Neumann, E.R., Andersen, T., Sundvoll, B., Fjerdingstad, V. and Stabel, A. (1988) Petrogenetic processes associated with intermediate and silicic magmatism in the Oslo rift, south-east Norway. Mineralogical Magazine, 52, 293–307.CrossRefGoogle Scholar
Shand, S.J. (1947) Eruptive Rocks, their Genesis, Composition, Classification and their Relation to Ore Deposits, with a chapter on Meteorites, 3rd edition. Thomas Murby, London, 488 pp.Google Scholar
Shore, M. and Fowler, A.D. (1996) Oscillatory zoning in minerals: a common phenomenon. The Canadian Mineralogist, 34, 1111–1126.Google Scholar
Sigmond, E.M.O., Gustavsen, M. and Roberts, D. (1984) Bedrock map of Norway, 1:1 million. Geological Survey of Norway.Google Scholar
Sorensen, B.E. and Larsen, R.B. (2009) Coupled trace element mobilisation and strain softening in quartz during retrograde fluid infiltration in dry granulite protholiths. Contributions to Mineralogy and Petrology, 157, 147–161.CrossRefGoogle Scholar
Sundvoll, B. and Larsen, B.T. (1990) Rb-Sr isotope systematics in the magmatic rocks of the Oslo Rift. Norges Geologiske Unders0kelse Bulletin, 418, 27–46.Google Scholar
Thompson, R.N. and Mackenzie, W.S. (1967) Feldspar- liquid equilibria in peralkaline acid liquids: an experimental study. American Journal of Science, 265, 714–734.CrossRefGoogle Scholar
Tronnes, R.G. and Brandon, A.D. (1992) Mildly peraluminous high-silica granites in a continental rift: the Drammen and Finnemarka batholiths, Oslo Rift, Norway. Contributions to Mineralogy and Petrology, 109, 275–294.CrossRefGoogle Scholar
Tuttle, O.F. and Bowen, N.L. (1958) Origin of granite in the light of experimental studies in the system NaAlSi3O8- KAlSi3O8-SiO2-H2O. Memoir 74, Geological Society America, 153 pp.Google Scholar
Watt, G.R., Wright, P., Galloway, S. and Mclean, C. (1997) Cathodoluminescence and trace element zoning in quartz phenocrysts and xenocrysts. Geochimica et Cosmochimica Acta, 61, 4337–4348.CrossRefGoogle Scholar
Whitney, J.A. (1975) The effects of pressure, temperature and Xh2o on phase assemblage in four synthetic rock compositions. Journal of Geology, 83, 1–31.CrossRefGoogle Scholar