Geochemical and stratigraphic evidence of environmental change at Lynch's Crater, Queensland, Australia

Muller, Joanne, Wüst, Raphael A.J., Weiss, Dominik, and Hu, Yi (2006) Geochemical and stratigraphic evidence of environmental change at Lynch's Crater, Queensland, Australia. Global and Planetary Change, 53 (4). pp. 269-277.

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Abstract

This is one of the first applications of geochemical proxies to define changes in vegetation, hydrology and atmospheric dust influence on a peat deposit in the southern hemisphere. A 6.6 m deep peat record from Lynch's Crater in NE-Queensland, Australia, provides a sensitive ~ 5000 to 30,000 cal years BP archive of environmental change. The deposit consists of 1.5 m of ombrotrophic peat underlain by a minerotrophic peat. Within the minerotrophic section, sponge spicules and diatom fragments offer evidence of prolonged flooding of the peat environment resulting in several layers containing (up to 50%) high inorganic material. The Ca and Mg data display episodes of enhanced dust influx and nutrient recycling and support previous palynological studies that show a Pleistocene to Holocene switch from sclerophyll woodlands to rainforest vegetation.

Item ID: 985
Item Type: Article (Refereed Research - C1)
Keywords: peat, stratigraphy, geochemistry, tropical, mire, Australia, radiocarbon dates
ISSN: 1872-6364
Date Deposited: 01 Nov 2006
FoR Codes: 04 EARTH SCIENCES > 0499 Other Earth Sciences > 049999 Earth Sciences not elsewhere classified @ 40%
04 EARTH SCIENCES > 0402 Geochemistry > 040299 Geochemistry not elsewhere classified @ 30%
06 BIOLOGICAL SCIENCES > 0602 Ecology > 060206 Palaeoecology @ 30%
SEO Codes: 96 ENVIRONMENT > 9603 Climate and Climate Change > 960399 Climate and Climate Change not elsewhere classified @ 100%
Citation Count from Web of Science Web of Science 10
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