The red coloration of Goikoetxe Cave’s speleothems (Busturia, Spain): An indicator of paleoclimatic changes

Downloads

Downloads per month over past year

63637

Impacto

Downloads

Downloads per month over past year

Martínez Pillado, Virginia and Yusta Arnal, Iñaki and Iriarte, Eneko and Alvaro, A. and Ortega, N. and Aranburu, Arantza and Arsuaga, Juan Luis (2020) The red coloration of Goikoetxe Cave’s speleothems (Busturia, Spain): An indicator of paleoclimatic changes. Quaternary International, 566–67 . pp. 141-151. ISSN 1040-6182

[thumbnail of The red coloration of Goikoetxe Cave’s speleothems (Busturia, Spain).pdf] PDF
Restringido a Repository staff only

3MB

Official URL: https://doi.org/10.1016/j.quaint.2020.04.006



Abstract

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.


Item Type:Article
Uncontrolled Keywords:Speleothem color, Organic matter, Spectroscopy, Fluorescence´
Subjects:Sciences > Geology > Stratigraphic geology
Sciences > Geology > Geochemistry
Sciences > Geology > Petrology
ID Code:63637
Deposited On:18 Jan 2021 16:52
Last Modified:19 Jan 2021 08:01

Origin of downloads

Repository Staff Only: item control page