On the Usefulness of the Modern Analog Approach to Interpret High Resolution Records: The Case of Varved Sediments from Lake Montcortès (Central Pyrenees)

How to cite: Vegas-Vilarrúbia, T.; Rull, V.; Trapote, M.D.C.; Cao, M.; Rosell-Melé, A.; Buchaca, T.; Gomà, J.; López, P.; Sigro, J.; Safont, E.; Cañellas, N.; Garcés-Pastor, S.; Giralt, S.; CORELLA, J.P.; Pérez-Zanón, N. On the Usefulness of the Modern Analog Approach to Interpret High Resolution Records: The Case of Varved Sediments from Lake Montcortès (Central Pyrenees). Preprints 2019, 2019050387. https://doi.org/10.20944/preprints201905.0387.v1 Vegas-Vilarrúbia, T.; Rull, V.; Trapote, M.D.C.; Cao, M.; Rosell-Melé, A.; Buchaca, T.; Gomà, J.; López, P.; Sigro, J.; Safont, E.; Cañellas, N.; Garcés-Pastor, S.; Giralt, S.; CORELLA, J.P.; Pérez-Zanón, N. On the Usefulness of the Modern Analog Approach to Interpret High Resolution Records: The Case of Varved Sediments from Lake Montcortès (Central Pyrenees). Preprints 2019, 2019050387. https://doi.org/10.20944/preprints201905.0387.v1

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MDPI and ACS Style

Vegas-Vilarrúbia, T.; Rull, V.; Trapote, M.D.C.; Cao, M.; Rosell-Melé, A.; Buchaca, T.; Gomà, J.; López, P.; Sigro, J.; Safont, E.; Cañellas, N.; Garcés-Pastor, S.; Giralt, S.; CORELLA, J.P.; Pérez-Zanón, N. On the Usefulness of the Modern Analog Approach to Interpret High Resolution Records: The Case of Varved Sediments from Lake Montcortès (Central Pyrenees). Preprints 2019, 2019050387. https://doi.org/10.20944/preprints201905.0387.v1

APA Style

Vegas-Vilarrúbia, T., Rull, V., Trapote, M.D.C., Cao, M., Rosell-Melé, A., Buchaca, T., Gomà, J., López, P., Sigro, J., Safont, E., Cañellas, N., Garcés-Pastor, S., Giralt, S., CORELLA, J.P., & Pérez-Zanón, N. (2019). On the Usefulness of the Modern Analog Approach to Interpret High Resolution Records: The Case of Varved Sediments from Lake Montcortès (Central Pyrenees). Preprints. https://doi.org/10.20944/preprints201905.0387.v1

Chicago/Turabian Style

Vegas-Vilarrúbia, T., JUAN PABLO CORELLA and Núria Pérez-Zanón. 2019 "On the Usefulness of the Modern Analog Approach to Interpret High Resolution Records: The Case of Varved Sediments from Lake Montcortès (Central Pyrenees)" Preprints. https://doi.org/10.20944/preprints201905.0387.v1

Abstract

In the Quaternary paleosciences, the rationale behind analogical inference presupposes that former natural changes can be explained by causes operating now, although their intensity and rates can vary through time. In this paper we synthesise synthetize the results of different modern analog studies and discuss their value to obtain the best inferences from high resolution past records. This synthesis is based on the following: 1) The monthly monitoring of calcite precipitation reveals a strong connection with primary producers and between-years variability; this precipitation produces a seasonal signal with imprint on varve formation. 2) Clear pollen sedimentation peaks occur in spring/summer and fall/winter that coincide with temperature, precipitation, relative humidity and winds; this pattern converges with the two-layer coupled varves representing the same seasonality. 3) We assess the lake’s contemporary oxygenation dynamics over a three- year period; a combination of sedimentary REDOX proxies revealed different scenarios of oxic/anoxic shifts since 1500 CE. 4) We investigate presence of seasonality in the production/distribution of glycerol dialkyl glycerol tetraethers and derived temperature estimates in soils and particulate matter. Branched glycerol dialkyl glycerol tetraethers signatures and some derived temperature estimates proxies appear to mainly depend on the non-seasonal shifts in soil properties. 5) Currently we examine relationships and similarities between extant phytoplankton and derived pigments in water and traps, and their correspondence with subfossil pigments; some preliminary results are presented here.Keywords: high resolution, endogenic varves, calcite precipitation, pollen sedimentation, meromixis, freshwater glycerol dialkyl tetraether, subfossil pigments, long-term ecology.

Keywords

high resolution, endogenic varves, calcite precipitation, pollen sedimentation, meromixis, freshwater glycerol dialkyl tetraether, subfossil pigments, long-term ecology

Subject

Environmental and Earth Sciences, Environmental Science

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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