Stable Carbon Isotope Ratios of Rock Varnish Organic Matter: A New Paleoenvironmental Indicator
1985; American Association for the Advancement of Science; Volume: 227; Issue: 4693 Linguagem: Inglês
10.1126/science.227.4693.1472
ISSN1095-9203
AutoresRonald I. Dorn, Michael J. DeNiro,
Tópico(s)Archaeology and ancient environmental studies
ResumoStable carbon isotope ratios of organic matter in rock varnishes of Holocene age from western North America and the Middle East show a strong association with the environment. This isotopic variability reflects the abundance of plants with different photosynthetic pathways in adjacent vegetation. Analyses of different layers of varnish on late Pleistocene desert landforms indicate that the carbon isotopic composition of varnish organic matter is a paleoenvironmental indicator.
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