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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. 1979, 1986 © Harper Collins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Cite This Source Fluorescence and Phosphorescence -- Prof.
Many different laboratory protocols have been developed as our understanding of the fundamental behaviour of luminescence signals from quartz and feldspar has improved.
These protocols are explained and discussed, giving the advantages and disadvantages of each procedure as applied to different types of sediment.
This property of these minerals can be used during the process of mineral identification at rock outcrops in the field, or in the laboratory.
Luminescence dating (including thermoluminescence and optically stimulated luminescence) is a type of dating methodology that measures the amount of light emitted from energy stored in certain rock types and derived soils to obtain an absolute date for a specific event that occurred in the past.The method is a direct dating technique, meaning that the amount of energy emitted is a direct result of the event being measured.Better still, unlike radiocarbon dating, the effect luminescence dating measures increases with time.Laboratory procedures for dating sediments have been adapted from those for pottery and new procedures have been developed as the need arises.The majority of sediment dating applications are carried out on quartz and potassium-rich feldspars and the general characteristics of the TL and OSL signals from these minerals are reviewed. He proposes the general name luminescence for evolutions of light which do not depend on the temperature of the substance concerned.Tags: Adult Dating, affair dating, sex dating