Results 31 to 40 of about 296 (82)

Natural radioactivity in Sardinian granite dimension stones [PDF]

open access: yes, 2010
http://www.fe.infn.it/u/mantovani/CV/Proceedings/Puccini_10b ...
A. Puccini   +6 more
core  

Serpentinite–Sediment Associations: Provenance Controlled by Competing Extensional–Contractional Tectonic Processes During the Evolution of the Northern Apennines (Eastern Elba Island, Tuscany)

open access: yesBasin Research, Volume 37, Issue 1, January–February 2025.
ABSTRACT Orogenic wedges juxtapose tectonic units that originated far from each other, and tracing these back to their origin is often difficult. We have studied two contrasting serpentinite–sediment associations of the Alpine‐Apennine orogenic wedge of eastern Elba Island with the help of a detrital zircon study of the sediments and a geochemical ...
Joachim Jacobs   +4 more
wiley   +1 more source

Gravity field and geothermal structure of the Corsica‐Sardinia Block

open access: yesTerra Nova, Volume 36, Issue 6, Page 506-515, December 2024.
Abstract This paper presents a finite‐differences 3D numerical model that simulates the gravity and thermal structure of the Corsica‐Sardinia Block (CSB), an apparently stable lithospheric domain characterized by cryptic tectonic activity. In the experiments, we change the density and heat production rate of the model crust within a range of ...
F. Cocco, L. Casini, A. Funedda
wiley   +1 more source

Tin isotope analysis of tin ore deposits in Europe and Central Asia in view of the tin provenance in archaeological metal objects [PDF]

open access: yes, 2023
The aim of this work is to establish an overview of the tin isotope ratios of cassiterite and stannite from various mineralized regions in Europe, the Mediterranean and Central Asia in order to assess the possibility to geochemically discriminate tin ore
Marahrens, Janeta
core   +1 more source

Paleomagnetism of the Peloritan Terrane (NE Sicily): From Greater Iberia to the Neo Apennine‐Maghrebide Arc

open access: yesTectonics, Volume 43, Issue 7, July 2024.
Abstract Calabria and the Peloritan Mts. of NE Sicily are exotic terranes predominantly formed by Hercynian rocks interrupting the Meso‐Cenozoic sediments exposed along Apennine‐Maghrebide chains. Dual‐polarity pre‐tilting magnetization direction retrieved from 5 Jurassic, 5 upper Cretaceous‐Eocene, and 4 upper Oligocene sedimentary sites from external‐
Gaia Siravo, Fabio Speranza
wiley   +1 more source

The architecture of the European-Mediterranean lithosphere: A synthesis of the Re-Os evidence [PDF]

open access: yes, 2013
Rhenium-depletion model ages (TRD) of sulfi des in peridotite xenoliths from the subcontinental mantle beneath central Spain (the Calatrava volcanic fi eld) reveal that episodes of mantle magmatism and/or metasomatism in the Iberia microplate were ...
Ancochea Soto, Eumenio   +9 more
core   +2 more sources

Assessing the Helium Potential of Variscan Batholiths: Insight From Corsica Island

open access: yesGeochemistry, Geophysics, Geosystems, Volume 25, Issue 7, July 2024.
Abstract Most of the current helium (He) reserves originate from fortuitous discoveries, mainly made during oil and gas exploration in sedimentary basins. As helium generation depends on U and Th α‐decay, old geological provinces gather key ingredients for high He accumulation. However, numerous He‐rich springs have also been documented in much younger
H. Dutoit   +11 more
wiley   +1 more source

Post-Collisional Tectonomagmatic Evolution, Crustal Reworking and Ore Genesis along a Section of the Southern Variscan Belt: The Variscan Mineral System of Sardinia (Italy) [PDF]

open access: yes
Since the early Paleozoic, numerous metallogenic events produced in the Sardinian massif a singular concentration of mineral deposits of various kinds. Among them, the Variscan metallogenic peak represents a late Paleozoic phase of diffuse ore formation ...
Alfredo Loi   +7 more
core   +1 more source

Kinematics and Timing Constraints in a TranspressiveTectonic Regime: The Example of the Posada-AsinaraShear Zone (NE Sardinia, Italy) [PDF]

open access: yes, 2020
Detailed geological field mapping, integrated with meso- and microstructural investigations, kinematic of the flow and finite strain analyses, combined with geochronology, are fundamental tools to obtain information on the temperature–deformation ...
Carosi, R.   +5 more
core   +1 more source

Microstructural Investigation of Variscan Late-Collisional Granitoids (Asinara Island, NW Sardinia, Italy): New Insights on the Relationship Between Regional Deformation and Magma Emplacement [PDF]

open access: yes
In the framework of the geological mapping of sheet “n. 425—Asinara Island” (NW Sardinia, Italy) of the Italian National Geological Mapping Project (CARG Project), three late- to post-collisional Variscan intrusive units are recognized:
Chiara Montomoli   +4 more
core   +1 more source

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