Secure optical communications systems using quantum cryptography
- 15 March 1996
- journal article
- Published by The Royal Society in Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
- Vol. 354 (1708) , 805-817
- https://doi.org/10.1098/rsta.1996.0033
Abstract
Modern analytic methods enable finite strain states on the scale of a hand specimen and textures on a much smaller scale to be determined in some rocks, together with error measures. Some recent publications describe attempts to calculate finite strain states from observed textures of phyllosilicates in slates. Petrographic, finite strain and textural data for several slates are presented, which suggest that such calculations are in fact often impossible and in general give inconsistent and erroneous results. The reasons for this are discussed, and it is suggested that there are no simple relations between finite strain states and textures in slates.Keywords
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