Stable isotopes of gypsum hydration water in recent playa-lake sediments: implications for paleoclimate reconstructions

Authors

  • Jorge Cañada-Pasadas Department of Biology and Geology, University of Almería
  • Fernando Gázquez Department of Biology and Geology, University of Almería - Andalusian Centre for Global Change - Hermelindo Castro (ENGLOBA), University of Almería
  • Lucía Martegani Department of Biology and Geology, University of Almería - Andalusian Centre for Global Change - Hermelindo Castro (ENGLOBA), University of Almería
  • Claudia Voigt Department of Biology and Geology, University of Almería
  • Antonio García-Alix Department of Stratigraphy and Paleontology, Campus de Fuentenueva, University of Granada
  • Gonzalo Jiménez-Moreno Department of Stratigraphy and Paleontology, Campus de Fuentenueva, University of Granada
  • Miguel Rodríguez-Rodríguez Department of Physical, Chemical and Natural Systems, Pablo de Olavide University, Seville

DOI:

https://doi.org/10.55407/geogaceta104479

Keywords:

gypsum, stable isotopes, playa-lake, gypsum hydration water, modern lake sediments

Abstract

We investigate the oxygen and hydrogen stable isotopes of hydration water in gypsum (CaSO4·2H2O) from surface sediment of Laguna de la Ratosa playa-lake (northern Málaga Province, Spain). We aim to enhance the understanding of how lacustrine gypsum from playa-lakes can be used for paleoclimate reconstruction. Gypsum samples were collected at 30-meter intervals along a transect from the shore to the depocenter of the lake. Comparison of δ18O and δ2H values of gypsum hydration water with the modern seasonal isotope variability of lake water point to gypsum formation in spring and early summer, before complete desiccation of the lake. An increasing trend in the δ18O and δ2H values of gypsum hydration water, by ~1,5 and ~15‰, respectively, is observed from the shore to the depocenter. This indicates that coeval gypsum formed in different parts of the lakebed record slightly different isotopic values of the lake water during precipitation. This spatial variability should be considered when interpreting stable isotope series of gypsum hydration water from ephemeral lake sediments.

References

Benavente, J., Almécija, C., Rodríguez, M., Carrasco, F. and Rodríguez, P. (2000). Geogaceta, 28, 19-22.

Dixit, Y., Hodell, D., Giesche, A., Tandon, S.K., Gázquez, F., Saini, H.S., Skinner, L.C., Mujtaba, S.A.I., Pawar, V., Singh, R.N. and Petrie, C.A. (2018). Scientific reports, 8, 4225. https://doi.org/10.1038/s41598-018-22504-5

Escavy, J.I., Herrero, M.J. and Arribas, M.E. (2012). Ore Geology Reviews, 49, 72-84. https://doi.org/10.1016/j.oregeorev.2012.09.001

Evans, D., Badger, M.P.S., Foster, G.L. et al. (2018). Nat Commun, 9, 2875. https://doi.org/10.1038/s41467-018-05303-4

García-Alix, A., Jiménez-Moreno, G., Gázquez, F., Monedero-Contreras, R., López-Avilés, A., Jiménez-Espejo, F.J., Rodríguez-Rodríguez, M., Camuera, J., Ramos-Román, M.J., Anderson, R.S. (2022). CATENA, 214, 106292. https://doi.org/10.1016/j.catena.2022.106292

Gázquez, F., Mather, I., Rolfe, J., Evans, N.P., Herwartz D., Staubwasser M., Hodell D.A., (2015). Simultaneous analysis of 17O/16O, 18O/16O and 2H/1H of gypsum hydration water by cavity ring-down laser spectroscopy. Rapid Comm. Mass Spectr. 29, 1997-2006 https://doi.org/10.1002/rcm.7312

Gázquez F., Evans N.P. and Hodell D.A. (2017). Geochimica et Cosmochimica Acta, 198, 259-270. https://doi.org/10.1016/j.gca.2016.11.001

Gázquez, F., Morellón, M., Bauska, T., Herwartz, D., Surma, J., Moreno, A., Staubwasser, M., Garcés-Valero, B., Delgado-Huertas, D. and Hodell, D. (2018). Earth and Planetary Science Letters, 481, 177-188. https://doi.org/10.1016/j.epsl.2017.10.020

Gázquez F and Hodell D.A. (2022). Geochimica et Cosmochimica Acta, 337, 73-81. https://doi.org/10.1016/j.gca.2022.09.042

Gázquez, F., Jiménez-Espejo, F., Rodríguez-Rodríguez, M. et al. (2023). Sci Rep, 13, 18815.

Gómez-Zotano, J., Alcántara-Manzanares, J., Olmedo-Cobo, J. and Martínez-Ibarra, E. (2015). Revista de Geografía Norte Grande, 61, 161-180. https://doi.org/10.4067/S0718-34022015000200009

Halmos, L., Delgado-Rodríquez, J., Rodríguez-Rodríguez, M., Jiménez-Bonilla, A., & Díaz-Azpiroz, M. (2022). Geogaceta, 72, 39-42. https://doi.org/10.55407/geogaceta98433

Hodell, D., Turchyn, A.V., Wiseman, C.J., Escobar, J., Curtis, J.H., Brenner, M., Gilli, A., Mueller, A. D., Anselmetti, F., Aritzegui, D. and Brown, E. (2012). Geochimica et Cosmochimica Acta, 77, 352-368. https://doi.org/10.1016/j.gca.2011.11.026

Martegani, L., Gázquez, F., Melles, M., Schröder, T and Reicherter, K. Geogaceta, 73, 43-46. https://doi.org/10.55407/geogaceta95513

Pierre, C. (2018). Chemical Geology, 493, 451-457. https://doi.org/10.1016/j.chemgeo.2018.06.024

Rodríguez-Rodríguez, M. (2007). Wetlands, 27, 819-830. https://doi.org/cjthtm

Rodríguez-Rodríguez, M., Martos-Rosillo, S., Pedrera, A. and Benavente-Herrera, J. (2015). Environmental Monitoring and Assessment, 187(175). https://doi.org/10.1007/s10661-015-4364-2

Downloads

Published

2024-12-02

How to Cite

Cañada-Pasadas, J., Gázquez, F., Martegani, L., Voigt, C., García-Alix, A., Jiménez-Moreno, G., & Rodríguez-Rodríguez, M. (2024). Stable isotopes of gypsum hydration water in recent playa-lake sediments: implications for paleoclimate reconstructions. GEOGACETA, 76, 71–74. https://doi.org/10.55407/geogaceta104479

Issue

Vol. 76 (2024): July-December

Section

Artículos

License

Copyright (c) 2024 Jorge Cañada Pasadas, Fernando Gázquez, Lucía Martegani, Claudia Voigt, Antonio García Alix, Gonzalo Jiménez Moreno, Miguel Rodríguez Rodríguez

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Until the year 2023 the author assigned the copyright to the Sociedad Geológica de España, but from 2024 the author retains the copyright and grants the Sociedad Geológica de España the right of first publication and non-exclusive distribution of each article in all current or future media, while transferring, also non-exclusively, the commercial rights for the distribution of the printed version of Geogaceta. On the other hand, the articles, from the year 2023, are available simultaneously with their publication, under the Creative Commons CC BY-NC-SA 4.0 license, which allows copying, transforming the work, but if any transformation is distributed, the new work must be distributed under the same license, and never for commercial purposes, while acknowledging the authorship and original publication in GEOGACETA, so that the only role of copyright is to give authors control over the integrity of their works and the right to be properly acknowledged and cited.

Most read articles by the same author(s)