Results 71 to 80 of about 8,479 (222)

The Archean Granitoid-Paleoproterozoic Unconformity: Superimposition of Alteration Events in Archean Granitoids, Gabon

Procedia Earth and Planetary Science, 2013
AbstractThe Archean granitoids of the South Gabon, dated from 3.0-to-2.5 Ga, were examined along the Archean-Proterozoic unconformity. The petrography was based on mineralogical identification using electron microscopy, X-ray diffraction, and the electron microprobe.
Idalina, Mouélé Moubiya, Dudoignon, Patrick, El Albani, Abderrazak, Martin, Hervé, Paquette, Jean-Louis, Cuney, Michel, Gauthier-Lafaye, François   +6 more
openaire   +3 more sources

Geochemical Characteristics of Metasediment—Rich Lower Continental Crust: Insights From the Ivrea‐Verbano Zone (DIVE Drilling Project, ICDP Expedition 5071, Val d’Ossola, Italy)

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 11, November 2026.
Abstract Whole‐rock geochemical data from two drill cores obtained through the ICDP (International Continental Scientific Drilling Program) funded Drilling the Ivrea‐Verbano Zone (IVZ) (DIVE) project: 5071_1_B (Ornavasso) and 5071_1_A (Megolo), provide new insights into the composition of the lower continental crust (LCC) in the IVZ. Borehole 5071_1_B (
Alexia Secrétan, Othmar Müntener, Benjamin Klein, Sarah Degen, Luca Pacchiega, Junjian Li, Mattia Pistone, Kim Lemke, György Hetényi, Jörg Hermann   +9 more
wiley   +1 more source

GEOLOGI DAN INDIKASI MILONITIK PADA BATUAN GRANITOID DI DAERAH SANGGAU, KALIMANTAN BARAT, INDONESIA: GEOLOGY AND MYLONITIC INDICATION IN GRANITOID ROCK AT SANGGAU DISTRICT, WEST KALIMANTAN, INDONESIA [PDF]

Lokasi penelitian secara administratif terletak di Kabupaten Sanggau, Kalimantan Barat, yang secara fisiografis termasuk ke dalam Blok Kalimantan Barat.
Yuda, Himmes Fitra, Meirawaty, Mira, Deva, Muhamad Deva Pratama, Anouw, Meldayan Monang, Adhitama, Ramadhan   +4 more
core   +1 more source

Granitoid formations in the Republic of Macedonia [PDF]

, 2002
Granitoid formations can be found in alJ geotectonic units in the territory of the Republic of Macedonia: the Western Macedonian zone, the Pelagonian massif, the Vardar zone and throughout the Serbo-Macedonian mass.
Boev, Blazo, Petrov, Gose, Lepitkova, Sonja   +2 more
core   +1 more source

Using synthetic models to understand the detecting ability of ground‐penetrating radar for water‐conducting structures in the bedrock of formerly glaciated site

Near Surface Geophysics, Volume 24, Issue 5, Page 669-692, October 2026.
Abstract Utilizing synthetic models for the interpretation of ground‐penetrating radar (GPR) profiles can aid in the detection of hydrogeological structures by identifying their signatures. In this study, finite difference (FD) forward modelling was used to understand the detection ability of 50 MHz GPR for (1) the quaternary deposit–bedrock contact ...
Annika Katarina Åberg, Salla Eeva, Emilia Koivisto, Susanne Charlotta Åberg, Seija Kultti, Kirsti Korkka‐Niemi   +5 more
wiley   +1 more source

Geochemistry, Petrology and Zircon U-Pb Dating for Bibi Maryam Granitoid, NE of Nehbandan, East of Iran

Journal of Economic Geology, 2011
Bibi Maryam granitoid body with about 5 Km2 has intruded into ophiolite mélange complex in sistan suture zone, in east of Iran. Thermal effects of this body on the host rocks show that this activity occurred after emplacement of ophiolite mélange ...
Mohammad Hossein Zarrinkoub, Sun-Lin Chung, Seyyed Saeid Mohammadi, Mohammad Mahdi Khatib   +3 more
doaj   +1 more source

Paleomagnetism of the Scourie Dykes, Lewisian Foreland, NW Scotland: Constraints on Early Paleoproterozoic Paleogeography of Kenorland

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 10, October 2026.
Abstract The Scourie dyke swarm in the Lewisian foreland of northwest Scotland provides key constraints on the Paleoproterozoic evolution of the North Atlantic craton. High‐precision U‐Pb geochronology identifies two distinct intrusive phases at ∼2.41–2.38 Ga and ∼2.00 Ga.
M. Mirzaei, V. A. Kravchinsky, F. Alizadeh, L. Heaman, A. Goguitchaichvili   +4 more
wiley   +1 more source

Re-Os molybdenite ages of granitoid-hosted Mo-Cu occurrences from central Anatolia (Turkey)

, 2012
The Central Anatolian Crystalline Complex (CACC), where many granitoids are emplaced and related ore occurrences/deposits occur, is tectonically located in the Alpine-Himalayan Belt The CACC hosts numerous ore occurrences/deposits (Cu, Mo, Fe, Pb and Zn)
DELİBAŞ, OKAN, GENÇ, YURDAL
core   +1 more source

Petrology of Pirin granitoids

Geologica Balcanica, 1989
On the basis of spatial relationships, petrological and structural studies, accessory-mineralogical, geochemical and paleogeophysical data, the following groups of plutons are distinguished in Pirin Mountain: Spančevo (of probable Late Proterozoic age), Bezbog (Southbulgarian type, Hercynian age) and young – Central Pirin (Central Pirin and Dautovo ...
openaire   +1 more source

Sensitization of OSL Signals in Quartz and Provenance Implications: Insights From Multi‐Spectroscopic Analysis of Quartz From Multiple Geological Settings

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 10, October 2026.
Abstract Quartz optically stimulated luminescence (OSL) sensitivity and electron spin resonance (ESR) signals have been empirically proposed as indicators of sediment provenance. OSL sensitivity is defined as luminescence produced per unit dose (Gray: Gy) per unit mass (mg).
Monika Devi, Serban‐Constantin Grecu, Zsejke‐Réka Tóth, Daniela Constantin, Daniela Brezeanu, Anca Barla, Ion Nesterovschi, Simona Cinta‐Pinzaru, Mihai N. Ducea, Stephen J. Mojzsis, Alida Timar   +10 more
wiley   +1 more source