Data Publication

The lithosphere and upper mantle of the Western-Central Mediterranean region from integrated geophysical-geochemical modelling

DIGITAL.CSIC

(2024)

Descriptions

This study integrates geophysical-geochemical data to investigate the thermochemical structure of the lithosphere and sublithospheric mantle, along the Southern Tyrrhenian Basin, Apennines, Adriatic Sea, Dinarides, and Carpathians-Balkanides. We present the lithospheric structure of the Adria microplate and the two opposing mantle slabs along its NE and SW margins. The modelling shows the presence of two asthenospheric mantle wedges aligning with the Apenninic and Dinaric continental mantle slab rollback, along with cold (-200ºC) sublithospheric anomalies beneath Adria’s NE and SW margins. In the northern Adria region, the lithosphere undergoes synchronous thinning in the Tyrrhenian domain and thickening toward the forefront of the northern Apennines. This is associated with the northeastward rollback of the SW Adriatic slab, leading to subsequent delamination of the continental mantle. In the southern Adria region, the complex deep structure results from the variably oriented lithospheric slabs, and nearly 90-degree shift of the tectonic grain between the southern Apennines and the Calabrian Arc. At the SW Adria margin, beneath the northern Apennines, the thermal sublithospheric anomaly is attached to the shallower lithosphere, while a slab gap is modelled in the southern Apennines. One possibility is that the gap is due to a recent horizontal slab tear. Along the NE margin of Adria, the thermal anomaly penetrates to depths of about 200 km in the northern Dinarides and 280 km in the southern Dinarides, shallower than the SW Adria anomaly, which extends to at least 400 km depth.

File List: - BestfitModel.zip: The files for best fitting model with two sublithospheric anomalies (a attached slab beneath Dinarides and a slab gap beneath Apennines). It can be loaded by LitMod2D_2.0. - BestfitModel_No_mantle_anomalies.zip: The files for best fitting model without mantle anomalies. It can be loaded by LitMod2D_2.0. - Model_With_Two_attached_slabs.zip: The files for best fitting model with two attached sublithospheric anomalies (both slabs attached, no slab gap beneath Apennines). It can be loaded by LitMod2D_2.0. - Readme.txt.

Keywords

Originally assigned keywords

Thermomechanical structure of the Lithosphere & sublithospheric mantle

Sublithospheric thermal anomalies

Lithospheric mantle composition

Potential field and thermal data

Convergent margins

Integrated geophysical-geochemical modelling

MSL enriched keywords

Earth's structure

Earth mantle

upper mantle

lithosphere

Phanerozoic

Cenozoic

Quaternary

Pleistocene

Calabrian

tectonic plate boundary

convergent tectonic plate boundary

subduction

slab roll-back

Source

https://digital.csic.es/handle/10261/349909

Source publisher

DIGITAL.CSIC

DOI

10.20350/digitalcsic/16154

Creators

Jimenez-Munt, Ivone

Zhang, Wentao

Torné, Montserrat

Vergés, Jaume

Bravo-Gutiérrez, Estefanía

Negredo, Ana M.

García-Castellanos, Daniel

Contributors

Digital.CSIC

DataManager

Digital.CSIC

HostingInstitution

Citation

Jimenez-Munt, I., Zhang, W., Torné, M., Vergés, J., Bravo-Gutiérrez, E., Negredo, A. M., & García-Castellanos, D. (2024). The lithosphere and upper mantle of the Western-Central Mediterranean region from integrated geophysical-geochemical modelling [Data set]. DIGITAL.CSIC. https://doi.org/10.20350/DIGITALCSIC/16154

Dates

Accepted:

2024-03-11

Available:

2024-03-11

Issued:

2024-03

Language

en

Funding References

Funder name: GeoCAM (ref. PGC2018-095154-B-I00); GEOADRIA (PID2022-139943NB-I00); (AGAUR 2021 SGR 00410);

Rights

openAccess

https://creativecommons.org/licenses/by/4.0/deed.es