Hostname: page-component-76fb5796d-x4r87 Total loading time: 0 Render date: 2024-04-25T09:40:40.762Z Has data issue: false hasContentIssue false
  • English
  • Français

RAPID COMMUNICATIONS Complex quartz growth histories in granite revealed by scanning cathodoluminescence techniques

Published online by Cambridge University Press:  01 July 1997

R. S. D'LEMOS ,
A. T. KEARSLEY ,
J. W. PEMBROKE ,
G. R. WATT  and
P. WRIGHT
R. S. D'LEMOS
Affiliation:
Geology & Cartography Division, Oxford Brookes University, Oxford, OX3 0BP, UK
A. T. KEARSLEY
Affiliation:
Geology & Cartography Division, Oxford Brookes University, Oxford, OX3 0BP, UK
J. W. PEMBROKE
Affiliation:
Geology & Cartography Division, Oxford Brookes University, Oxford, OX3 0BP, UK
G. R. WATT
Affiliation:
Geology & Cartography Division, Oxford Brookes University, Oxford, OX3 0BP, UK
P. WRIGHT
Affiliation:
Oxford Instruments Group PLC, Group Headquarters, Eynsham, OX8 1TH, UK
Get access Rights & Permissions [Opens in a new window]

Abstract

A scanning electron microscope based cathodoluminescence technique utilizing a novel collector system reveals complex internal heterogeneities within granitic quartz grains. The technique overcomes the low intensity and limited variation in cathodoluminescence generated by quartz, which hamper conventional cathodoluminescence analysis. Detailed images of zoning patterns in quartz are comparable to those observed in minerals such as feldspar, and attributed to a combination of progressive growth, boundary layer effects and mineral–melt disequilibria produced during fluctuations in melt composition and temperature during the crystallization interval. We attribute such mineral–melt disequilibria to open system, mixing behaviour in the granite plutons sampled.

Type
Brief Report
Information
Geological Magazine , Volume 134 , Issue 4 , July 1997 , pp. 549 - 552
Copyright
© 1997 Cambridge University Press

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.)