Dripwater organic matter and trace element geochemistry in a semi-arid karst environment: Implications for speleothem paleoclimatology

Research output: Contribution to journalArticlepeer-review

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Dripwater organic matter and trace element geochemistry in a semi-arid karst environment : Implications for speleothem paleoclimatology. / Rutlidge, Helen; Baker, Andy; Marjo, Christopher E.; Andersen, Martin S.; Graham, Peter W.; Cuthbert, Mark O.; Rau, Gabriel C.; Roshan, Hamid; Markowska, Monika; Mariethoz, Gregoire; Jex, Catherine N.

In: Geochimica et Cosmochimica Acta, Vol. 135, 15.06.2014, p. 217-230.

Research output: Contribution to journalArticlepeer-review

Harvard

Rutlidge, H, Baker, A, Marjo, CE, Andersen, MS, Graham, PW, Cuthbert, MO, Rau, GC, Roshan, H, Markowska, M, Mariethoz, G & Jex, CN 2014, 'Dripwater organic matter and trace element geochemistry in a semi-arid karst environment: Implications for speleothem paleoclimatology', Geochimica et Cosmochimica Acta, vol. 135, pp. 217-230. https://doi.org/10.1016/j.gca.2014.03.036

APA

Rutlidge, H., Baker, A., Marjo, C. E., Andersen, M. S., Graham, P. W., Cuthbert, M. O., Rau, G. C., Roshan, H., Markowska, M., Mariethoz, G., & Jex, C. N. (2014). Dripwater organic matter and trace element geochemistry in a semi-arid karst environment: Implications for speleothem paleoclimatology. Geochimica et Cosmochimica Acta, 135, 217-230. https://doi.org/10.1016/j.gca.2014.03.036

Vancouver

Author

Rutlidge, Helen ; Baker, Andy ; Marjo, Christopher E. ; Andersen, Martin S. ; Graham, Peter W. ; Cuthbert, Mark O. ; Rau, Gabriel C. ; Roshan, Hamid ; Markowska, Monika ; Mariethoz, Gregoire ; Jex, Catherine N. / Dripwater organic matter and trace element geochemistry in a semi-arid karst environment : Implications for speleothem paleoclimatology. In: Geochimica et Cosmochimica Acta. 2014 ; Vol. 135. pp. 217-230.

Bibtex

@article{2bd3f6409c474793a6116004561cb06f,
title = "Dripwater organic matter and trace element geochemistry in a semi-arid karst environment: Implications for speleothem paleoclimatology",
abstract = "A series of four short-term infiltration experiments which revealed hydrochemical responses relevant to semi-arid karst environments were carried out above Cathedral Cave, Wellington, New South Wales (NSW), Australia. Dripwater samples were collected at two sites for trace element and organic matter analysis. Organic matter was characterised using fluorescence and interpreted using a PARAFAC model. Three components were isolated that represented unprocessed, soil-derived humic-like and fulvic-like material, processed humic/fulvic-like material and tryptophan-like fluorescence. Principal Component Analysis (PCA) performed on the entire dataset comprising trace element concentrations and PARAFAC scores revealed two dominant components that were identified as soil and limestone bedrock. The soil component was assigned based on significant contributions from the PARAFAC scores and additionally included Ba, Cu, Ni and Mg. The bedrock component included the expected elements of Ca, Mg and Sr as well as Si. The same elemental behaviour was observed in recent stalagmite growth collected from the site. Our experiments demonstrate that existing paleoclimate interpretations of speleothem Mg and Sr, developed in regions of positive water balance, are not readily applicable to water limited environments. We provide a new interpretation of trace element signatures unique to speleothems from water limited karst environments.",
author = "Helen Rutlidge and Andy Baker and Marjo, {Christopher E.} and Andersen, {Martin S.} and Graham, {Peter W.} and Cuthbert, {Mark O.} and Rau, {Gabriel C.} and Hamid Roshan and Monika Markowska and Gregoire Mariethoz and Jex, {Catherine N.}",
year = "2014",
month = jun,
day = "15",
doi = "10.1016/j.gca.2014.03.036",
language = "English",
volume = "135",
pages = "217--230",
journal = "Geochimica et Cosmochimica Acta",
issn = "0016-7037",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Dripwater organic matter and trace element geochemistry in a semi-arid karst environment

T2 - Implications for speleothem paleoclimatology

AU - Rutlidge, Helen

AU - Baker, Andy

AU - Marjo, Christopher E.

AU - Andersen, Martin S.

AU - Graham, Peter W.

AU - Cuthbert, Mark O.

AU - Rau, Gabriel C.

AU - Roshan, Hamid

AU - Markowska, Monika

AU - Mariethoz, Gregoire

AU - Jex, Catherine N.

PY - 2014/6/15

Y1 - 2014/6/15

N2 - A series of four short-term infiltration experiments which revealed hydrochemical responses relevant to semi-arid karst environments were carried out above Cathedral Cave, Wellington, New South Wales (NSW), Australia. Dripwater samples were collected at two sites for trace element and organic matter analysis. Organic matter was characterised using fluorescence and interpreted using a PARAFAC model. Three components were isolated that represented unprocessed, soil-derived humic-like and fulvic-like material, processed humic/fulvic-like material and tryptophan-like fluorescence. Principal Component Analysis (PCA) performed on the entire dataset comprising trace element concentrations and PARAFAC scores revealed two dominant components that were identified as soil and limestone bedrock. The soil component was assigned based on significant contributions from the PARAFAC scores and additionally included Ba, Cu, Ni and Mg. The bedrock component included the expected elements of Ca, Mg and Sr as well as Si. The same elemental behaviour was observed in recent stalagmite growth collected from the site. Our experiments demonstrate that existing paleoclimate interpretations of speleothem Mg and Sr, developed in regions of positive water balance, are not readily applicable to water limited environments. We provide a new interpretation of trace element signatures unique to speleothems from water limited karst environments.

AB - A series of four short-term infiltration experiments which revealed hydrochemical responses relevant to semi-arid karst environments were carried out above Cathedral Cave, Wellington, New South Wales (NSW), Australia. Dripwater samples were collected at two sites for trace element and organic matter analysis. Organic matter was characterised using fluorescence and interpreted using a PARAFAC model. Three components were isolated that represented unprocessed, soil-derived humic-like and fulvic-like material, processed humic/fulvic-like material and tryptophan-like fluorescence. Principal Component Analysis (PCA) performed on the entire dataset comprising trace element concentrations and PARAFAC scores revealed two dominant components that were identified as soil and limestone bedrock. The soil component was assigned based on significant contributions from the PARAFAC scores and additionally included Ba, Cu, Ni and Mg. The bedrock component included the expected elements of Ca, Mg and Sr as well as Si. The same elemental behaviour was observed in recent stalagmite growth collected from the site. Our experiments demonstrate that existing paleoclimate interpretations of speleothem Mg and Sr, developed in regions of positive water balance, are not readily applicable to water limited environments. We provide a new interpretation of trace element signatures unique to speleothems from water limited karst environments.

UR - http://www.scopus.com/inward/record.url?scp=84898420155&partnerID=8YFLogxK

U2 - 10.1016/j.gca.2014.03.036

DO - 10.1016/j.gca.2014.03.036

M3 - Article

AN - SCOPUS:84898420155

VL - 135

SP - 217

EP - 230

JO - Geochimica et Cosmochimica Acta

JF - Geochimica et Cosmochimica Acta

SN - 0016-7037

ER -