Results 41 to 50 of about 89,166 (344)

ORE GEOLOGY PROBLEMS AND THE HUMAN FACTOR. PART 3. METAMORPHISM AND MESOTHERMAL OREFORMATION

Известия Томского политехнического университета: Инжиниринг георесурсов, 2019
The relevance of the research. The conditions of the known large mesothermal gold deposits formation into black shales states of different age form the subject of animated discussion which often acquires the signs of substitute and probably therefore the
Igor V. Kucherenko
doaj   +1 more source

Petrography, Geochemistry and Tectonics of Harris Granite, East Azerbaijan Province: Evidence for Intracontinental Rift Magmatism

Journal of Economic Geology, 2022
Introduction Granites are interesting because of their abundance in the continental crust and the presentation of valuable information from the depths of the earth and their close dependence on tectonic and geodynamic processes (Bonin, 2007).
Farhad Pirmohammadi Alishah , Mehdi Mohammadrezaei , Ahmad Jahangiri   +2 more
doaj   +1 more source

U–Pb dating and Sm–Nd isotopic analysis of granitic rocks from the Tiris Complex : new constaints on key events in the evolution of the Reguibat Shield, Mauritania [PDF]

, 2012
The Reguibat Shield of N Mauritania and W Algeria represents the northern exposure of the West African Craton. As with its counterpart in equatorial West Africa, the Leo Shield, it comprises a western Archaean Domain and an eastern Palaeoproterozoic ...
Abdouloye, T.B., Darbyshire, F., Gillespie, M., Horstwood, M.S.A., O'Connor, E.A., Pitfield, P.E.J., Schofield, D.I.   +6 more
core   +1 more source

Magmatic Differentiation of Rocks [PDF]

Science, 1902
n ...
openaire   +3 more sources

The Gavorrano Monzogranite (Northern Apennines): An Updated Review of Host Rock Protoliths, Thermal Metamorphism and Tectonic Setting

Geosciences, 2021
We review and refine the geological setting of an area located nearby the Tyrrhenian seacoast, in the inner zone of the Northern Apennines (southern Tuscany), where a Neogene monzogranite body (estimated in about 3 km long, 1.5 km wide, and 0.7 km thick)
Andrea Brogi, Alfredo Caggianelli, Domenico Liotta, Martina Zucchi, Amalia Spina, Enrico Capezzuoli, Alessandra Casini, Elena Buracchi   +7 more
doaj   +1 more source

Variscan Magmatism [PDF]

, 2019
published
Ribeiro, M. L., Castro, A., Castro, A., González Menéndez, L., Jesus, A., Lains, J. A., Lopes, P., Martins, H. C. B., Mata, J., Mateus, A., Moita, P., Neiva, A. M. R., Ribeiro, M. A., Santos, José Francisco, Solá, A. R.   +14 more
openaire   +2 more sources

Temporal and Hf isotope geochemical evolution of southern Finnish Lapland from 2.77 Ga to 1.76 Ga [PDF]

Bulletin of the Geological Society of Finland, 2012
The southern Finnish Lapland area in the central part of the Fennoscandian shield is a geologically complex zone comprising several Archean blocks and Paleoproterozoic supracrustal belts all of which are intruded by voluminous Paleoproterozoic granites ...
L.S. Lauri, T. Andersen, J. Räsänen, H. Juopperi   +3 more
doaj   +1 more source

Outboard Onset of Ross Orogen Magmatism and Subsequent Igneous and Metamorphic Cooling Linked to Slab Rollback during Late-Stage Gondwana Assembly

Geosciences, 2023
Changes in magmatism and sedimentation along the late Neoproterozoic-early Paleozoic Ross orogenic belt in Antarctica have been linked to the cessation of convergence along the Mozambique belt during the assembly of East-West Gondwana.
Timothy Paulsen, John Encarnación, Anne Grunow, Jeffrey Benowitz, Paul Layer, Chad Deering, Jakub Sliwinski   +6 more
doaj   +1 more source

Factors contributing to the formation of carbonated mineral water systems in Serbia [PDF]

Geološki Anali Balkanskoga Poluostrva, 2012
There are more than 65 occurrences of carbonated mineral water (CMW) within the territory of Serbia. More than 93 % of these systems are found in the geotectonic unit referred to as the Vardar Zone and on the fringes of nearby units. To the east,
Marinković Goran, Papić Petar, Stojković Jana, Dragišić Veselin   +3 more
doaj   +1 more source

Dynamics of episodic Late Cretaceous–Cenozoic magmatism across Central to Eastern Anatolia: New insights from an extensive geochronology compilation

Geosphere, 2018
We compiled geochronology data from 87 published studies within the Anatolia orogen (32.5°E–44°E) to investigate the spatial and temporal patterns of continental magmatism during the final stages of Neotethys Ocean closure.
W. K. Schleiffarth, M. Darin, M. Reid, P. Umhoefer   +3 more
semanticscholar   +1 more source