The red coloration of Goikoetxe Cave’s speleothems (Busturia, Spain): An indicator of paleoclimatic changes / V. Martínez-Pillado, I. Yusta, E. Iriarte, A. Álvaro, N. Ortega, A. Aranburu, J.L. Arsuaga.
Contributor(s): Martínez-Pillado, Virginia
| Yusta, I | Iriarte, E | Ortega, N | Aranburu, A | Arsuaga, Juan Luis.
Material type: 
Computer fileCitation: Martinez-Pillado, V., Yusta, I., Iriarte, E., Alvaro, A., Ortega, N., Aranburu, A., Arsuaga, J.L., 2020. The red coloration of Goikoetxe Cave’s speleothems (Busturia, Spain): An indicator of
paleoclimatic changes. Quaternary International. 566-567, 141-151. https://doi.org/10.1016/j.quaint.2020.04.006 Publisher: [S.l.]: Elsevier, 2020Content type: texto (visual) Media type: electrónico Subject(s): Color espeleotema | Materia orgánica | Espectroscopia | FluorescenciaOnline resources: Click here to access online Summary: The most commonly used paleoclimatic proxies in speleothem studies are the carbon and oxygen stable isotopes and the trace elements of calcite. However, assessing the incorporation of other components, such as organic matter, may also be of interest in interpreting and reconstructing the climate during speleothem growth. In this work, the incorporation of humic and fulvic acids derived from overlying soils is proposed as the cause of the red coloration of speleothems from the Goikoetxe Cave (Busturia, Bizkaia). Through the application of petrological studies combined with X-ray fluorescence, UV luminescence, Raman spectroscopy and Fourier-transform infrared spectroscopy (FTIR) analysis, it has been possible to correlate a variation of organic content in the overlying soils and the red coloration, being this stain a main proxy to study and reconstruct the seasonal paleoclimatic parameters during the speleothem formation.
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The most commonly used paleoclimatic proxies in speleothem studies are the carbon and oxygen stable isotopes and the trace elements of calcite. However, assessing the incorporation of other components, such as organic matter, may also be of interest in interpreting and reconstructing the climate during speleothem growth. In this work, the incorporation of humic and fulvic acids derived from overlying soils is proposed as the cause of the red coloration of speleothems from the Goikoetxe Cave (Busturia, Bizkaia). Through the application of petrological studies combined with X-ray fluorescence, UV luminescence, Raman spectroscopy and Fourier-transform infrared spectroscopy (FTIR) analysis, it has been possible to correlate a variation of organic content in the overlying soils and the red coloration, being this stain a main proxy to study and reconstruct the seasonal paleoclimatic parameters during the speleothem formation.
Martinez-Pillado, V., Yusta, I., Iriarte, E., Alvaro, A., Ortega, N., Aranburu, A., Arsuaga, J.L., 2020. The red coloration of Goikoetxe Cave’s speleothems (Busturia, Spain): An indicator of
paleoclimatic changes. Quaternary International. 566-567, 141-151. https://doi.org/10.1016/j.quaint.2020.04.006
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