This preview shows pages 1–3. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: PLEASE SCROLL DOWN FOR ARTICLE This article was downloaded by: [Univ Bib Sez Geologia E Paleon] On: 3 February 2010 Access details: Access Details: [subscription number 911087545] Publisher Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office: Mortimer House, 37- 41 Mortimer Street, London W1T 3JH, UK Australian Journal of Earth Sciences Publication details, including instructions for authors and subscription information: http://www.informaworld.com/smpp/title~content=t716100753 Water, restite and granite mineralisation A. J. R. White a a Victorian Institute of Earth and Planetary Sciences, School of Earth Sciences, University of Melbourne, Vic. 3010, Australia. To cite this Article White, A. J. R.(2001) 'Water, restite and granite mineralisation', Australian Journal of Earth Sciences, 48: 4, 551 — 555 To link to this Article: DOI: 10.1046/j.1440-0952.2001.00878.x URL: http://dx.doi.org/10.1046/j.1440-0952.2001.00878.x Full terms and conditions of use: http://www.informaworld.com/terms-and-conditions-of-access.pdf This article may be used for research, teaching and private study purposes. Any substantial or systematic reproduction, re-distribution, re-selling, loan or sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material. Australian Journal of Earth Sciences (2001) 48 , 551–555 INTRODUCTION There is no doubt that many granite-related ore deposits such as porphyry–tin, porphyry–copper and others, are primarily formed from a hydrothermal fluid derived from the magma, although some porphyry–copper deposits are economic because of secondary supergene enrichment probably produced by fluids largely of meteoric origin. Chemical compositions of granites have commonly been discussed as a factor in ore formation, but little attention has been directed to varying H 2 O content in different magma types. White et al. (1991) pointed out that unless granite is produced by fractional crystallisation, which concentrates both metals and volatiles, it cannot give rise to an ore deposit; many granite magmas do not expel sufficient H 2 O on cooling or decompression to produce an ore deposit. The H 2 O budgets of contrasting magma types are discussed here....
View Full Document
This note was uploaded on 03/19/2012 for the course GEOLOGY 6 taught by Professor Rm during the Spring '12 term at UNAM MX.
- Spring '12
- The Land