caa a22 4500 386318409 CHVBK 20180307111616.0 cr unu---uuuuu 161130e198812 xx s 000 0 eng 10.1017/S0003598X00075074 doi S0003598X00075074 pii (NATIONALLICENCE)cambridge-10.1017/S0003598X00075074 Cation-ratio dating of rock-engravings from the Olary Province of arid South Australia [Elektronische Daten] Desert varnish, the distinctive coating on exposed rock surfaces in arid regions, can be dated by cation ratios, providing a rare means directly to date petroglyphs. A first application of the method, much used in north America, is here reported from Australia, where it indicates minimum ages up to 30,000 years old. And it also shows that the style of figures, so often taken as a measure of chronology, is in this instance largely independent of age. Copyright © Antiquity Publications Ltd 1988 Dorn Ronald I. Department of Geography, Arizona State University, Tempe, AZ 85287, USA Nobbs Margaret 8 Hazelwood Avenue, Hazelwood Park, 5006 South Australia, Australia Cahill Tom A. Crocker Nuclear Laboratory, University of California, Davis, CA 95616, USA Antiquity Cambridge University Press 62/237(1988-12), 681-689 0003-598X 62:237<681 1988 62 AQY https://doi.org/10.1017/S0003598X00075074 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0003598X00075074 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dorn Ronald I. Department of Geography, Arizona State University, Tempe, AZ 85287, USA NATIONALLICENCE 700 1- Nobbs Margaret 8 Hazelwood Avenue, Hazelwood Park, 5006 South Australia, Australia NATIONALLICENCE 700 1- Cahill Tom A. Crocker Nuclear Laboratory, University of California, Davis, CA 95616, USA NATIONALLICENCE 773 0- Antiquity Cambridge University Press 62/237(1988-12), 681-689 0003-598X 62:237<681 1988 62 AQY CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge