Administrative things


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Denis Gojak
Department of Archaeology, SOPHI
University of Sydney NSW 2006


One Response to Administrative things

  1. MAL FABIAN says:

    see image of how Australian bushfires and even grass fires , remove lichen every time a fire happens . In the Gosford glyphs area , a major fire burned the area In 1979 , the nearby Gilford house , long abandoned , was built in the 1920’s and was destroyed in 1979 in one of the frequent Australian bush fires. lichen can only confirm the time of the latest fire , not the age the glyphs were first carved
    see wiki , ” In archaeology, lichenometry is a geomorphic method of dating that uses lichen growth to determine the age of exposed rock, based on a presumed specific rate of increase in radial size over time.[1][2]:9 Measuring the diameter of the largest lichen of a species on a rock surface can therefore be used to determine the length of time the rock has been exposed. it is most accurate (within 10% error) when applied to surfaces that have been exposed for less than 1,000 years.[3] Lichenometry is especially useful for dating surfaces less than 500 years old, as radiocarbon dating techniques are less accurate over this period.[4] … REBUTTAL OF Lichen growth – Kariong hieroglyph site – collating the evidence – Part 1.November 21, 2014 five part series within the Secret Visitors Project ” There are two main types of lichen growing on the sides of the cleft – a green circular lichen – Xanthoparmelia – and a lighter one with black ‘peppery’ spots – Buellia. Symbols were cut through the Xanthoparmelia lichen and they have not in any instance had time to re-colonise the cuts.”
    IMHO lichenometry,can only confirm the time of the latest fire , not the age the glyphs were first carved , IN THIS BUSHFIRE PRONE SITE , SEE PIC

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