Results 71 to 80 of about 3,531 (178)

Tectonic Interplay in the Gulf of Cagliari (Italy): Extension, Compression and Strike‐Slip Movements

Basin Research, Volume 38, Issue 3, May–June 2026.
Since the Oligocene, extensional tectonics of the Sardinia Rift and Campidano Graben interacted with the collision between Sardinia and northern Africa, generating reverse faults. At the Plio‐Quaternary boundary, compressional tectonics resumed, shaping the southern margin of the gulf through transpressional tectonics of the exposed Ichnusa High ...
Anna Del Ben, Silvana Fais, Riccardo Geletti, Maria Cristina Caradonna, Veronica Frisicchio, Giuseppe Brancatelli   +5 more
wiley   +1 more source

Comparison of metamorphic evolution and tectonic position of metasediments of the Austevoll islands with rocks from the Samnanger Complex (Major Bergen Arc, Norwegian Caledonides) [PDF]

, 2015
Metasedimentary rocks represent a substantial component of the Bergen Arcs System and they are mostly confined to the Minor and Major Bergen Arcs. The arcs represents imbricate structures composed of island arc lithologies, prism sediments and gneissic ...
Hordvik, Øystein Sørumshaugen
core  

Anatexis of meta-marls generates (silico-)carbonatites in orogenic settings

Communications Earth & Environment
The genesis of anatectic carbonatites – i.e., rocks crystallized from carbonate melts generated by partial melting of metasediments – remains unclear, though essential to elucidate their occurrence.
Chiara Groppo, Fabrizio Tursi, Maria Luce Frezzotti, Andrea Maroni, Sara Nerone, Franco Rolfo   +5 more
doaj   +1 more source

Timing of Metamorphism and Deformation in the Neoarchean Quetico Metasedimentary Belt, Superior Craton, Constrained by Garnet Trace‐Element Mapping and Lu–Hf Geochronology

Journal of Metamorphic Geology, Volume 44, Issue 4, Page 265-286, May 2026.
ABSTRACT The Quetico subprovince of the Superior Province is among the largest metasedimentary belts globally and provides evidence of tectonic processes at play during the final stages of Archean cratonization. Although previous studies have shown that deformation and metamorphism of the 2.7‐Ga turbiditic protolith resulted in regional subvertical ...
Adrian G. Rehm, Antoine Godet, Doug Tinkham, Carl Guilmette, Matthijs A. Smit   +4 more
wiley   +1 more source

Chemical mineralogy and illite crystallinity in low grade metasediments, Zarouchla Group, northern Peloponnesus, Greece [PDF]

, 1991
Low grade metasediments from the Zarouchla Group of the Phyllite-Quartzite series in northern Peloponnesus have been investigated. Mineralogically, there is a clear distinction between the lowermost and the overlying formations.
Tsolis-Katagas, P., Baltatzis, E., Katagas, C.   +2 more
core  

Precambrian crustal evolution and Cretaceous–Palaeogene faulting in West Greenland: Zircon geochronology from the Kangaatsiaq–Qasigiannguit region, the northern part of the 1.9–1.8 Ga Nagssugtoqidian orogen, West Greenland [PDF]

Geological Survey of Denmark and Greenland Bulletin, 2006
The Kangaatsiaq–Qasigiannguit region in the northern part of the Palaeoproterozoic Nagssugtoqidian orogen of West Greenland consists of poly-deformed orthogneisses and minor occurrences of interleaved, discontinuous supracrustal belts. Laser ablation ICP-
Conelly, James N., Thrane, Kristine
doaj  

Epidote Records (De)hydration From the Seafloor Through Subduction and Underplating: Implications for Subduction Zone Fluid Budgets and Slow Slip

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.
Abstract When, where, and how much fluid is released from subducting oceanic crust control deformation, element cycling, and magmatism in subduction zones. However, the palimpsest of tectonometamorphic processes in the exhumed rock record complicates the relation of geologic observations to geodynamic models of subduction fluid sources and transport ...
P. C. Lindquist, C. B. Condit, W. F. Hoover, V. E. Guevara, G. S. Epstein   +4 more
wiley   +1 more source

Metamorphic evolution of Verrucano metasediments in northern Apennines: new petrological constraints [PDF]

, 1998
The Triassic Verrucano metasediments largely crop out along the mid Tuscan ridge, in the northern Apennines. The metasediments mainly consist of ferriferous quartzites and Al-rich metapelites and contain a specific mineralogy which lead to the ...
GOFFE', B., NIETO F., TURBANTI, I., GIORGETTI, G.   +3 more
core   +1 more source

Chromium, iron, gold and manganese in Amapá and northern Pará, Brazil

Brazilian Journal of Geology
: Information is presented on the geology and mineral deposits in greenstone belts and mafic-ultramafic complexes in Amapá and northern Pará, with the emphasis in iron, gold, manganese, and chromium.
Wilson Scarpelli, Elio Hiromi Horikava
doaj   +1 more source

Metamorphic Rock-Hosted Orogenic Gold Deposit Type as a Source of Langkowala Placer Gold, Bombana, Southeast Sulawesi

Indonesian Journal on Geoscience, 2014
DOI: 10.17014/ijog.v6i1.114In 2008, placer gold was discovered in Langkowala area (Bombana Regency), Southeast Sulawesi, Indonesia, and more than 60,000 traditional gold miners in the early 2009 have been operating by digging vertical pits and panning ...
Arifudin Idrus, I. Nur, I. W. Warmada, Fadlin Fadlin   +3 more
doaj   +1 more source