Karst landscape evolution in the littoral area of the Bay of Biscay (north Iberian Peninsula)

Aranburu, Arantza; Arriolabengoa, Martín; Iriarte, Eneko; Giralt, Santiago; Yusta, Iñaki; Martínez-Pillado, Virginia; Val, M. del; Moreno, J.A Monjaras; Jiménez-Sánchez, Montserrat

doi:10.1016/j.quaint.2014.09.025

Cited by 31 publications

(25 citation statements)

References 37 publications

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“…COB1 flowstone in the Cobiheru Cave is coeval to the second generation of spelethems (141–112 ka) recognized in the Bay of Biscay; these speleothems are related to the fluvial deposits of the Urtiaga Cave II. COB2 flowstone possibly matches with the third generation ( c. 58 ka), which is related also to the detrital deposits of the Urtiaga Cave II (Aranburu et al , ).…”

Section: Discussionsupporting

confidence: 88%

“…A similar fluvial sequence to the detrital deposits of the Cobiheru Cave was deposited before 124 ka in El Pindal Cave (Asturias, Figure B), where speleothem precipitation was not identified during MIS 6 (Jiménez‐Sánchez et al , , ). Endokarstic fluvial deposition sedimentation would have occurred during three periods (15–50, 60–95 and 170–245 ka) in the Bay of Biscay (Figure B), with the second period (60–95 ka) matching phase 4 of the evolution model proposed for Cobiheru Cave (Aranburu et al , ). COB1 flowstone in the Cobiheru Cave is coeval to the second generation of spelethems (141–112 ka) recognized in the Bay of Biscay; these speleothems are related to the fluvial deposits of the Urtiaga Cave II.…”

Section: Discussionmentioning

confidence: 96%

“…show dips lower than 5° towards the sea (Flor, ; Mary, ; Moñino et al , ; Álvarez‐Marrón et al , ; Flor and Flor‐Blanco, ). These surfaces are interpreted as uplifted marine platforms (Jiménez‐Sánchez et al , ; Álvarez‐Marrón et al , ; Aranburu et al , ), although some authors attribute the uppermost terraces to continental processes (Flor and Flor‐Blanco, ). Initial studies suggested that the oldest terraces could have emerged during the Mio‐Pliocene period (Flor, ; Mary, ; Moñino et al , ).…”

Section: Introductionmentioning

confidence: 99%

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New evidence of sea‐level lowstands and paleoenvironment during MIS 6 and 4 in the Cantabrian coastal karst: the Cobiheru cave (North Iberia)

Ballesteros

Rodríguez‐Rodríguez

González-Lemos

et al. 2017

Earth Surf Processes Landf

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The geomorphological evolution of the Cobiheru Cave shows the influence of the non‐carbonate coastal mountain ranges on coastal karst evolution, as well as the temporal distribution of the cold‐adapted fauna sites in the Cantabrian Coast. Geomorphological observation and uranium/thorium (U/Th) dating lead to the construction of an evolution model. The model comprises two episodes of cave deposition occurring at c. 60–70 and 130–150 ka, linked to cold climate conditions, global sea‐level lowstands and the erosion of alluvial fans that covered the karst. Moreover, the comparison between the Cobiheru record and some raised beaches identified in previous studies sets the beginning of the sea‐level lowering in the Cantabrian Sea during the marine isotope stages (MIS) 5–4 transition. Two palaeoenvironments are inferred based on finding Equus ferus and Elona quimperiana. A wet deciduous forest would have developed on the emerged marine terrace of the Cobiheru Cave since at least the Middle Pleistocene, and an open landscape with scarce vegetation would have been present at c. 65 ka. The erosional event identified in the Cobiheru Cave helps to understand the temporal distribution of cold‐adapted mammals located in the Asturias region. The probable sites of cold‐adapted fauna developed in caves and alluvial fans would have disappeared after 65 ka. Therefore, palaeontological and palaeoclimate research based on cold‐adapted mammals suggests the occurrence of an hiatus in the palaeontological record prior to 50 ka. Copyright © 2017 John Wiley & Sons, Ltd.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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New evidence of sea‐level lowstands and paleoenvironment during MIS 6 and 4 in the Cantabrian coastal karst: the Cobiheru cave (North Iberia)

Ballesteros

Rodríguez‐Rodríguez

González-Lemos

et al. 2017

Earth Surf Processes Landf

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“…During the Cenozoic, several transgressions and regressions of the sea with amplitudes up to 120 m, occurred, some of them being related to the Pleistocene glaciations (Pedoja et al, 2014). The coast was uplifting and emerging from the sea since, at least, the PlioceneePleistocene boundary, forming several terraces at altitudes ranging from 5 to 250 m (Flor and Flor-Blanco, 2014;Aranburu et al, 2015;Domínguez-Cuesta et al, 2015). These emerged marine terraces were modified by recent faults, at least, in the western coast area ( Alvarez-Marr on et al, 2008), where siliceous bedrock predominates.…”

Section: Settingmentioning

confidence: 99%

“…These emerged marine terraces were modified by recent faults, at least, in the western coast area ( Alvarez-Marr on et al, 2008), where siliceous bedrock predominates. In the central and eastern coast areas, where the study cave is situated, marine terraces with limestone bedrock were karstified, developing closed depressions and cave conduits Aranburu et al, 2015). …”

Section: Settingmentioning

confidence: 99%

Palaeoenvironmental research at Rexidora Cave: New evidence of cold and dry conditions in NW Iberia during MIS 3

Álvarez-Lao

Ruiz-Zapata

Gil-García

et al. 2015

Quaternary International

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Reconstructing fluvial incision rates based on palaeo‐water tables in chalk karst networks along the Seine valley (Normandy, France)

Nehmé

Farrant

Ballesteros

et al. 2020

Earth Surf Processes Landf

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Quantifying rates of river incision and continental uplift over Quaternary timescales offer the potential for modelling landscape change due to tectonic and climatic forcing. In many areas, river terraces form datable archives that help constrain the timing and rate of valley incision. However, old river terraces, with high‐level deposits, are prone to weathering and often lack datable material. Where valleys are incised through karst areas, caves and sediments can be used to reconstruct the landscape evolution because they can record the elevation of palaeo‐water tables and contain preserved datable material. In Normandy (N. France), the Seine River is entrenched into an extensive karstic chalk plateau. Previous estimates of valley incision were hampered by the lack of preserved datable fluvial terraces. A stack of abandoned phreatic cave passages preserved in the sides of the Seine valley can be used to reconstruct the landscape evolution of the region. Combining geomorphological observations, palaeomagnetic and U/Th dating of speleothem and sediments in eight caves along the Lower Seine valley, we have constructed a new age model for cave development and valley incision. Six identified cave levels up to ∼100 m a.s.l. were formed during the last ~1 Ma, coeval with the incision of the Seine River. Passage morphologies indicate that the caves formed in a shallow phreatic/epiphreatic setting, modified by sediment influxes. The valley's maximum age is constrained by the occurrence of late Pliocene marine sand. Palaeomagnetic dating of cave infills indicates that the highest‐level caves were being infilled prior to 1.1 Ma. The evidence from the studied caves, complemented by fluvial terrace sequences, indicates that rapid river incision occurred during marine isotope stage (MIS) 28 to 20 (0.8–1 Ma), with maximal rates of ~0.30 m ka−1, dropping to ~0.08 m ka−1 between MIS 20–11 (0.8–0.4 Ma) and 0.05 m ka−1 from MIS 5 to the present time. © 2020 John Wiley & Sons, Ltd.

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Karst landscape evolution in the littoral area of the Bay of Biscay (north Iberian Peninsula)

Cited by 31 publications

References 37 publications

New evidence of sea‐level lowstands and paleoenvironment during MIS 6 and 4 in the Cantabrian coastal karst: the Cobiheru cave (North Iberia)

New evidence of sea‐level lowstands and paleoenvironment during MIS 6 and 4 in the Cantabrian coastal karst: the Cobiheru cave (North Iberia)

Palaeoenvironmental research at Rexidora Cave: New evidence of cold and dry conditions in NW Iberia during MIS 3

Reconstructing fluvial incision rates based on palaeo‐water tables in chalk karst networks along the Seine valley (Normandy, France)

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