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Part 1 Generalities: the impact of scientific techniques; absolute dating and derivative dating; the event being dated; reasons for dating; which technique? Part 2 Climatic clocks and frameworks: climate-based frameworks; the oxygen-isotope timescale - the Milankovitch astronomical theory of climate; the pollen record (palynology) - late-glacial and postglacial dating in NW Europe, pollen assemblage zones (PAZ), correlation with the oxygen-isotope timescale - La Grand Pile, Les Echets; varve chronology - the Scandianavian varbe chronology, the Lake of Clouds, Minnesota; dendrochronology (tree-ring dating - the European oak and bristlecone pine chronology.

Part 9 Magnetic dating and magnetostratigraphy: the Earth's magnetic field; recording mechanisms - thermoremanent magnetism (TRM)k viscous remanent magnetism (VRM), sediments (DRM, PDRM CRM); sampling and measurement; the magnetic polarity timescale (reversal stratigraphy); archaeomagnetism - the Fisher index.

A discussion of the various scientific methods used to help in the dating of archaeological finds.

The method was developed by Willard Libby in the late 1940s and soon became a standard tool for archaeologists.

Libby received the Nobel Prize for his work in 1960.

Additional complications come from the burning of fossil fuels such as coal and oil, and from the above-ground nuclear tests done in the 1950s and 1960s.Extensions of luminescence dating to other fired materials such as burnt flint, and to stalagmitic calcite and unburnt sediment are then outlined, including optical dating of the latter.Final sections deal with limitations in age range, accuracy and error limits.The main text is a coherent introduction to the whole field of science-­based dating, written in plain langauge for non-­scientists.Additional end-­notes, however, offer a a more technical understanding, and cater for those who have a scientific and mathematical background.

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Da venerdì 23 a domenica 25 settembre si terrà la quinta edizione di Trieste Next, il Salone Europeo della Ricerca Scientifica promosso dal Comune di Trieste, dall'Università di Trieste e da Venezie Post, in collaborazione con tutti gli enti di ricerca e di alta formazione del territorio.