DETERMINATION OF LYAPOUNOV EXPONENTS TO CHARACTERIZE THE OSCILLATORY DISTRIBUTION OF TRACE-ELEMENTS IN MINERALS

Authors
HALDEN NM
Citation
Nm. Halden, DETERMINATION OF LYAPOUNOV EXPONENTS TO CHARACTERIZE THE OSCILLATORY DISTRIBUTION OF TRACE-ELEMENTS IN MINERALS, Canadian Mineralogist, 34, 1996, pp. 1127-1135
Citations number
22
Categorie Soggetti
Mineralogy
Journal title
Canadian Mineralogist → ACNP
ISSN journal
00084476
Volume
34
Year of publication
1996
Part
6
Pages
1127 - 1135
Database
ISI
SICI code
0008-4476(1996)34:<1127:DOLETC>2.0.ZU;2-V
Abstract
Lyapounov exponents have been determined for patterns of oscillatory z oning as revealed by cathodoluminescence in zircon and apatite; values for the exponent range from +0.0011 to +0.0149. These positive values indicate that the zoning patterns are weakly chaotic, and that the de velopment of the zoning was sensitive to the initial conditions of cry stal growth. The Lyapounov exponent can be used as a quantitative meas ure of the zoning character and in comparisons of various patterns of zoning.