Results 21 to 30 of about 1,743 (174)

Provenance and Tectonic Evolution of Bauxite Deposits in the Tethys: Perspective From Random Forest and Logistic Regression Analyses

Geochemistry, Geophysics, Geosystems, Volume 24, Issue 6, June 2023., 2023
Abstract Developments in Earth system research have led to widespread interest in multi‐sphere interactions that may have controlled bauxite formation. Although karst bauxite ores are abundant in the Tethyan Metallogenic Domain (TMD), their genesis and distribution are not yet fully understood.
Jintao Zhou, Wenchao Yu, Wei Wei, Mingyu Yang, Yuansheng Du   +4 more
wiley   +1 more source

Tertiary-Quaternary intra-plate magmatism in Europe and its relationship to mantle dynamics [PDF]

, 2006
Anorogenic intra-plate magmatism was widespread in Europe from early Tertiary to Recent times, extending west to east from Spain to Bulgaria, and south to north from Sicily to northern Germany. Magmatism is spatially and temporally associated with Alpine-
Downes, Hilary, Wilson, M.
core   +1 more source

Timing, Thrusting Mode, and Negative Inversion Along the Circeo Thrust, Apennines, Italy: How the Accretion‐To‐Extension Transition Operated During Slab Rollback

Tectonics, Volume 42, Issue 6, June 2023., 2023
Abstract The evolution of the Apennine wedge has seen the time‐space migration of the forebulge, foredeep, thrust wedge, and back‐arc extension phases in the wake of the Eastward rollback of the subducting Adria slab. In this framework, thrusting and post‐orogenic extensional faulting have occurred in two parallel forelandward‐migrating ribbons, with ...
S. Tavani, L. Smeraglia, S. Fabbi, L. Aldega, M. Sabbatino, G. L. Cardello, A. Maresca, G. Schirripa Spagnolo, A. Kylander‐Clark, A. Billi, S. M. Bernasconi, E. Carminati   +11 more
wiley   +1 more source

Asymmetric fold development in the Variscan Nappes of central Sardinia (Italy)

Comptes Rendus. Géoscience, 2004
The Meana Sardo Unit (MSU) shows trains of asymmetric SW-verging folds, developed during the thickening stage and nappe development of the Variscan belt in Sardinia. The geometry of the folds and the finite strain analysis results in the hinge of a kilometric fold give information on the folding mechanisms.
Carosi R., Iacopini D., Montomoli C.
openaire   +6 more sources

The Middle Jurassic Alpine Tethyan Unconformity and the Eastern Sardinia - Corsica Jurassic High: A sedimentary and regional analysis [PDF]

, 2016
Investigations performed along the Middle Jurassic Alpine Tethyan unconformity surface of E Sardinia evidenced an elaborate surface that developed over older Late Paleozoic to Triassic rocks. This surface is covered by the Middle Jurassic Genna Selole Fm,
Costamagna, Luca Giacomo
core   +2 more sources

Thermal Structure of the Paleo‐Continental Subduction Zone: Insights From Quantitatively Constrained Prograde P–T Paths of Exhumed LT/UHP Eclogites in the Dabie Orogen

Geochemistry, Geophysics, Geosystems, Volume 24, Issue 5, May 2023., 2023
Abstract The discrepancy of geothermal gradients predicted by numerical modeling and recorded by peak metamorphic conditions of exhumed high/ultrahigh pressure (HP/UHP) metamorphic rocks triggers many uncertainties on the thermal structure of subduction zones, which is especially significant for continental subduction zones. Well‐constrained prograde P‒
Mei Xia, Qiang‐Qiang Zhang, Xiao‐Ying Gao   +2 more
wiley   +1 more source

Late Ordovician (post–Sardic) rifting branches in the North Gondwanan Montagne Noire and Mouthoumet massifs of southern France [PDF]

, 2015
Upper Ordovician–Lower Devonian rocks of the Cabrières klippes (southern Montagne Noire) and the Mouthoumet massif in southern France rest paraconformably or with angular discordance on Cambrian–Lower Ordovician strata.
Colmenar, Jorge, Monceret, Eric, Pouclet, André, Vizcaïno, Daniel, Álvaro-Blasco, José Javier   +4 more
core   +1 more source

Kinematics and Timing Constraints in a Transpressive Tectonic Regime: The Example of the Posada-Asinara Shear Zone (NE Sardinia, Italy)

Geosciences, 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–timing ...
Rodolfo Carosi, Alessandro Petroccia, Salvatore Iaccarino, Matteo Simonetti, Antonio Langone, Chiara Montomoli   +5 more
doaj   +1 more source

Garnet-Rich Veins in an Ultrabasic Amphibolite from NE Sardinia, Italy: An Example of Vein Mineralogical Re-Equilibration during the Exhumation of a Granulite Terrane

Geosciences, 2020
A complex system of mono- and polymineralic centimeter-thick veins occurs within the ultrabasic amphibolites of Montigiu Nieddu hill in northeastern Sardinia, and they are filled with garnet, amphibole, chlorite, and epidote.
Gabriele Cruciani, Marcello Franceschelli, Hans-Joachim Massonne, Giovanni Musumeci, Massimo Scodina   +4 more
doaj   +1 more source

Correlating magnetic fabrics with finite strain : comparing results from mudrocks in the Variscan and Appalachian Orogens [PDF]

, 2004
New magnetic anisotropy data from Variscan mudstones collected in the Cantabrian Arc, N Spain constrain the corresponding strain (shortening). The results are based on our previous study of mudrocks from the Valley and Ridge Province (Appalachians) where
Parés, J. M., Van Der Pluijm, B. A.
core   +3 more sources