- Title
- The 2002-2003 El Niño recorded in Australian cave drip waters: implications for reconstructing rainfall histories using stalagmites
- Creator
- McDonald, Janece; Drysdale, Russell; Hill, David
- Relation
- Geophysical Research Letters Vol. 31, Issue 22
- Publisher Link
- http://dx.doi.org/10.1029/2004GL020859
- Publisher
- American Geophysical Union
- Resource Type
- journal article
- Date
- 2004
- Description
- A 30-month study of drip hydrochemistry from Kooringa Cave, eastern Australia, revealed a clear geochemical response to the 2002–2003 El Niño. Through the drought, drip discharge fell to base flow, drip Ca²⁺ concentrations fell by half and drip Mg/Ca and Sr/Ca increased in a co-varying pattern. Calcite Mg/Ca and Sr/Ca predicted from drip waters displayed a marked increase through, and just beyond, the period of greatest moisture deficit. The results suggest that stalagmites from shallow caves in drought-sensitive eastern Australia potentially preserve a valuable record of El Niño-La Niña history.
- Subject
- el Niño; hydrochemistry; stalagmites; caves
- Identifier
- http://hdl.handle.net/1959.13/29201
- Identifier
- uon:2461
- Identifier
- ISSN:0094-8276
- Language
- eng
- Full Text
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