Climate change and human impact in central Spain during Roman times: High-resolution multi-proxy analysis of a tufa lake record (Somolinos, 1280m asl)

Currás, Andrés; Zamora, Laia; Reed, Jane M.; García-Soto, E.; Ferrero, S.; Armengol, Xavier; Mezquita-Joanes, F.; Marqués, M. A.; Riera, Santiago; Julià, Ramón

doi:10.1016/j.catena.2011.09.009

Cited by 75 publications

(49 citation statements)

References 78 publications

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“…Other studies in southern Iberia show variability in humidity during the IRHP. The most humid period from 2500 to 2140 cal yr BP, an arid period between 2140 to 1800 cal yr BP and a relative humid period from 1800 to 1600 cal yr BP are also observed in the record from Zoñar Lake (Martín-Puertas et al, 2009) and a very similar variability is showed in the record of Somolinos Lake (Currás et al, 2012).…”

Section: Arid Interval Between ~4000 and ~3100 Cal Yr Bpsupporting

confidence: 50%

“…Several high-resolution multiproxy lake records from northern and central Iberia have documented centennial-scale paleoclimate evolution for the last millennia (e.g. Martín-Puertas 2008; Morellón et al, 2011;Currás et al, 2012;Corella et al, 2013). Most of the Holocene paleoclimate reconstructions in the southern Iberian Peninsula come from lake and peat deposits at low and montane altitudes, as well as from marine cores (Carrión, 2002;Carrión et al, 2001aCarrión et al, , 2001bCarrión et al, , 2003Carrión et al, , 2007Carrión et al, , 2010Martín-Puertas et al, 2008, 2010Nieto-Moreno et al 2011;Jiménez-Moreno et al, 2015).…”

mentioning

confidence: 99%

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Centennial-scale vegetation and North Atlantic Oscillation changes during the Late Holocene in the southern Iberia

Ramos‐Román

Jiménez‐Moreno

Anderson

et al. 2016

Quaternary Science Reviews

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Highlights1. We studied a late Holocene vegetation and fire record from southern Spain.2. A long-term aridification trend is observed, interrupted by shorter-scale variability.3. This study shows humidity changes during the last 4500 yr, related to NAO changes and solar variability. AbstractHigh-resolution pollen analysis, charcoal, non-pollen palynomorphs and magnetic susceptibility have been analyzed in the sediment record of a peat bog in Sierra Nevada in southern Iberia. The study of these proxies provided the reconstruction of vegetation, 2 climate, fire and human activity of the last ~4500 cal yr BP. A progressive trend towards aridification during the late Holocene is observed in this record. This trend is interrupted by millennial-and centennial-scale variability of relatively more humid and arid periods. Arid conditions are recorded between ~4000 to 3100 cal yr BP, being characterized by a decline in arboreal pollen and with a spike in magnetic susceptibility. This is followed by a relatively humid period from ~3100 to 1600 cal yr BP, coinciding partially with the Iberian-Roman Humid Period, and is indicated by the increase of

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Section: Arid Interval Between ~4000 and ~3100 Cal Yr Bpsupporting

confidence: 50%

mentioning

confidence: 99%

Centennial-scale vegetation and North Atlantic Oscillation changes during the Late Holocene in the southern Iberia

Ramos‐Román

Jiménez‐Moreno

Anderson

et al. 2016

Quaternary Science Reviews

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“…Overall, the sequence is dominated by planktonic taxa Cyclotella distinguenda Hustedt, an alkaliphilous freshwater diatom that can also tolerate slightly brackish water (Reed 1998), and Cyclotella ocellata Pantocsek, a taxon that is probably a species complex, with very broad ecological preferences, but which is common in Mediterranean karst lakes and typically found in shallow to deep, and ultra-oligotrophic to meso-eutrophic water (Reed et al 2010;Jones et al 2013). The benthic flora is dominated by freshwater species within the genera Amphora, Diploneis, Mastogloia, Gomphonema and Cymbella, typical of epiphytic and epipelic habitats in the littoral zone of Spanish karst lakes (Currás et al 2012). …”

Section: Geochemical and Isotope Analysismentioning

confidence: 99%

“…At least 300 valves were counted where diatoms were well preserved, but fewer were enumerated in poorly preserved samples. Diatom identification was based on standard texts, with updated nomenclature (Currás et al 2012). Ryves' simple F-index (FI), comprising the ratio of pristine to partially dissolved diatom valves (Ryves et al 2001), was used to summarise preservation status.…”

Section: Diatom Analysismentioning

confidence: 99%

“…We provide new data from sediment core BAN II, including oxygen (δ 18 O) and carbon (δ 13 C) isotope data from endogenic calcite, to address (1) and (2) (Leng and Marshall 2004), and diatom data to 7 provide an indicator of lake-level and productivity change (3) (Currás et al 2012). Our interpretation is strengthened by multi-proxy comparison with previous work on Lake Banyoles (Pérez-Obiol and Julià 1994;Valero-Garcés et al 1998;Höbig et al 2012) and with palaeoclimate reconstructions from the eastern and western Mediterranean, to improve understanding of Late Quaternary variability across this complex region.…”

Section: Introductionmentioning

confidence: 99%

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Western Mediterranean climate and environment since Marine Isotope Stage 3: a 50,000-year record from Lake Banyoles, Spain

et al. 2015

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We present new stable isotope (δ 18 O calcite and δ 13 C calcite ) and diatom data from a 67-m sediment core (BAN II) from Lake Banyoles, northeastern Spain. We reassessed the chronology of the sequence by correlating stable isotope data with a shorter U-series-dated record from the lake, confirming a sedimentological offset between the two cores and demonstrating that BAN II spans Marine Isotope Stages (MIS) 3 to 1. Through comparison with previous records, the multi-proxy data are used to improve understanding of palaeolimnological dynamics and, by inference, western Mediterranean climate and environmental change during the past ca. 50,000 years. Three main zones, defined by isotope and diatom data, correspond to the MIS. The basal zone (MIS 3) is characterised by fluctuating δ 18 O calcite and benthic diatom abundance, indicating a high degree of environmental and climate variability, concomitant with large lake-level changes. During the full glacial (MIS 2), relatively constant δ 18 O calcite and a poorly preserved planktonicdominated diatom assemblage suggest stability, and intermittently, unusually high lake level.In MIS 1, δ 18 O calcite and δ 13 C calcite initially transition to lower values, recording a pattern of Late Glacial to Holocene change that is similar to other Mediterranean records. This study suggests that Lake Banyoles responds limnologically to changes in the North Atlantic oceanatmosphere system and provides an important dataset from the Iberian Peninsula, a region in need of longer-term records that can be used to correlate between marine and terrestrial archives, and between the western and eastern Mediterranean.4

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Comment on “Next‐Generation Ice Core Technology Reveals True Minimum Natural Levels of Lead (Pb) in the Atmosphere: Insights From the Black Death” by More et al.

Bindler

2018

GeoHealth

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Over the past four decades numerous studies of lake sediment, marine sediment, and peat from sites in close proximity to mining or metallurgical centers and in remote locations have detailed local and regional histories of lead (Pb) pollution in Europe. Contrary to More et al.'s (2017, https://doi.org/10.1002/2017GH000064) claim that “previous assumptions about preindustrial “natural” background lead levels in the atmosphere have been misleading,” these studies have clearly shown that true natural background conditions occurred more than 2,500 or even 3,500 years ago, and Pb pollution has proceeded uninterrupted since. The implications of this have been discussed within the context of environmental policy, for example, European Water Framework Directive. Though these records reflect a common European narrative of mining, metallurgy, and pollution, each reflects a combination of local and regional events, leading to differences in the timing and intensity of changes in each Pb record. No one record—ice or otherwise—fully represents the three millennia Pb pollution history in Europe. While the resolution of the ice record is impressive, there are questions about its interpretation. First, the authors discount local and regional Pb sources, whereas there is a close connection between the mining history in an area 40 km from the glacier and changes in a nearby lake Pb record; second, significant changes in ice chemistry cooccurring with the lowest Pb values are overlooked. A sharp increase in Ca/Fe ratios occurs precisely with the steepest Pb declines during the Black Death and mid‐1400s, suggesting additional processes influencing the Pb record.

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Climate change and human impact in central Spain during Roman times: High-resolution multi-proxy analysis of a tufa lake record (Somolinos, 1280m asl)

Cited by 75 publications

References 78 publications

Centennial-scale vegetation and North Atlantic Oscillation changes during the Late Holocene in the southern Iberia

Centennial-scale vegetation and North Atlantic Oscillation changes during the Late Holocene in the southern Iberia

Western Mediterranean climate and environment since Marine Isotope Stage 3: a 50,000-year record from Lake Banyoles, Spain

Comment on “Next‐Generation Ice Core Technology Reveals True Minimum Natural Levels of Lead (Pb) in the Atmosphere: Insights From the Black Death” by More et al.

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