# name
Holocene humidity changes in southern Iberia inferred from the geochemical signature of marine sediments

# metadata.dc.description.abstract[].value
The Mediterranean region is particularly sensitive to global climate variability that critically reflects on
its hydrological conditions. A recently published high resolution reconstruction of Holocene Sea Surface
Temperature (SST) based on Globigerina bulloides Mg/Ca ratios, set the basis to explore, within a
warm climatic period, the impact of North Atlantic oceanographic conditions shaping the properties of
the inflowing waters into the Mediterranean Sea. Here we go a step further in establishing the potential
links between these oceanographical changes with the hydrological conditions on the southern Iberian
Peninsula.

# metadata.dc.description.abstract[].value
This study combines XRF-core-scanner analyses with the radiogenic isotopes characterization (Sr, Nd
and Pb) of the terrigenous fraction in core ALB-2 from the Alboran Sea. Results indicate that the most
humid conditions developed during the early to middle Holocene with a transition towards drier conditions
and colder SST that occurred by the late Holocene. The radiogenic Sr, Nd and Pb records do not show
any covariance with the millennial scale oscillations shown in the Zr and K XRF records interpreted as
humidity changes. This could suggest that inputs of African dust are not the main controlling factor in the
XRF records. In contrast, the Sr isotope record shows a significant transition around the middle Holocene
while SSTs show a cooling trend. For an accurate interpretation of that feature, this study also targets a
novel approach by characterizing the radiogenic isotope composition of settling particles recovered by
moored sediment traps under well characterized meteorological conditions.

# metadata.dc.relation.ispartof[].value
Resum del pòster presentat a: 14th International Conference on Paleoceanography (ICP14). 29 August-2 September 2022. Bergen. (Poster Abstracts Topic 1: Climate and Ocean Chemistry - P1-068)

# metadata.dc.rights[].value
cc by-nc-nd (c) Pena González, Leopoldo David et al., 2023

# metadata.dc.source[].value
Comunicacions a congressos (Dinàmica de la Terra i de l'Oceà)

# metadata.dc.title[].value
Holocene humidity changes in southern Iberia inferred from the geochemical signature of marine sediments