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Stable isotopes and soil-geomorphology as indicators of Holocene climate change, northern Chihuahuan Desert

Stable isotopes and soil-geomorphology as indicators of Holocene climate change, northern Chihuahuan Desert

Journal of Arid Environments 43(4): 357-373

Shifts in delta 13C values of pedogenic carbonate in buried soils at piedmont slope and basin floor sites in the Northern Chihuahuan Desert, Texas, USA, indicate a transition from C<sub>4</sub> grasses to C<sub>3</sub> desert-scrub between 7000 and 9000 years ago. All 5 aeolian and 3 alluvial profiles investigated recorded similar coeval basin palaeoenvironmental changes. In 2 of the aeolian profiles stage I and II pedogenic carbonate was found in fine-grained playa sediments.

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Accession: 003566277

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DOI: 10.1006/jare.1999.0584

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