Results 61 to 70 of about 1,204 (166)

Neoarchean Arc Magmatism and Crust Recycling in the Northern Marginal Zone of the Limpopo Complex, Zimbabwe: New Insights From Zircon U‐Pb‐Hf Isotopes of a Charnockite Suite

Geological Journal, Volume 61, Issue 3, Page 566-592, March 2026.
Charnockites with 2691–2607 Ma magmatic ages from the NMZ show arc‐magmatic geochemical signatures. They correspond to the lower‐crustal equivalent of the Chilimanzi Suite Granite in the Zimbabwe Craton. Lu‐Hf isotopic data of magmatic zircons show negative εHf(t) values (−11.18 to −2.20) with TDMC ages of 3699–3158 Ma, suggesting their protolith ...
Toshiaki Tsunogae, Md. Sazzadur Rahman, Gao Pin, M. Santosh, Wataru Fujisaki, Sam Uthup, Prince Mandingaisa   +6 more
wiley   +1 more source

INTEGRAL-DIFFERENTIATED PALOGEODYNAMICS OF THE NEW UKRAINIAN GRANITE-GNEIS DOME OF THE UKRAINIAN SHIELD

Геохімія техногенезу, 2020
The article discusses the results of comprehensive studies of the integral and differential geodynamics of the Early Proterozoic Novoukrain-skyi granite gneiss dome, which does not have its own petrological, parametric and specialized analogue on the ...
Semenyuk N., Verkhovsev V., Vaylo A., Ganevich A., Kulibaba V.   +4 more
doaj   +1 more source

Triassic High-Mg Diorites and Granitoids in the NE Pamir Reveal Tectonic Evolution of the Paleo-Tethys Ocean [PDF]

Lithosphere
The Western Kunlun-Pamir Orogen (WKPO) in the northwestern Tibetan Plateau holds crucial information on the Tethyan evolution. Until now, the subduction polarity and the assemblage processes of the Northern, Central, and Southern Pamir during the Paleo ...
Xiao-Qiang Liu, Chuan-Lin Zhang, Masumeh Sargazi, Hua-Dong Ma, Aerken Xiaili, Xu-Kun Qian, Zhi-Hao Song   +6 more
doaj   +1 more source

Zircon Inheritance Refines the Cambrian Orogenic Architecture of Southeast Australia

Tektonika
The Selwyn Block is one of the few accreted terranes identified in the vast Paleozoic Tasmanides of eastern Australia and its incorporation into this orogen marks a first-order event in the tectonic evolution of the Pacific margin of Gondwana.
Jacob Mulder, Jacqueline Halpin, Laura Morrissey, Yousef Zoleikhaei, John Everard, Sebastien Meffre, Mike Hall, Oliver Nebel, Peter Cawood   +8 more
doaj   +1 more source

Indoor - soil gas radon relationshipin the Central Bohemian Plutonic Complex

Annals of Geophysics, 2005
The relationship of indoor radon measurements and radon in bedrock was studied in the granitoid Central Bohemian Plutonic Complex (CBPC). The indoor data were linked to vectorised geological and radon risk maps using the coordinates of ...
I. Fojtíková, J. Miksová, I. Barnet
doaj   +1 more source

Geoheritage Value of Three Localities from Kislovodsk in the Southern Central Ciscaucasus: A Resource of Large Resort Area

Geosciences
Many geographical domains possess notable geological and geomorphological features, which are yet to be characterized comprehensively in terms of geoheritage. The present study focuses on the Kislovodsk area, which is situated in the southern part of the
Natalia N. Yashalova, Dmitry A. Ruban
doaj   +1 more source

Petrogenesis of the Lalezar granitoid intrusions (Kerman Province - Iran) [PDF]

Journal of Sciences, Islamic Republic of Iran, 2015
The Lalezar granitoids crop out within volcanic successions of the Urumieh-Dokhtar Magmatic Assemblage (UDMA). These granitoids have a range from gabbro-diorites to granites in composition.
S. M. Niktabar, A. Moradian, H. Ahmadipour1, J. F. Santos, M. H. Mendes   +4 more
doaj  

Сomposition and mineralogy of granitoids of the Ob-Zaisan folded region in the context of the prediction of groundwater radioactivity

Горные науки и технологии
The presented research is carried out in continuation of the works connected with studying the nature of radioactivity of drainage waters of quarries of Novosibirsk region, performed by the Laboratory of Hydrogeology of Sedimentary Basins of Siberia ...
Vasiliy P. Sukhorukov , Anna F. Sukhorukova, Dmitry A. Novikov, Anton S. Derkachev   +3 more
doaj   +1 more source

Highlights on Geochemical Changes in Archaean Granitoids and Their Implications for Early Earth Geodynamics

Geosciences, 2018
The Archaean (4.0–2.5 Ga) continental crust is mainly composed of granitoids, whose geochemical characteristics are a function of their formation mechanisms and components, as well as physical conditions of their source.
Jaana Halla
doaj   +1 more source

KIBARAN GRANITOID MAGMATISM IN THE REPUBLIC OF BURUNDI: GEOLOGY, COMPOSITIONAL FEATURES, TIME AND GEODYNAMIC CONDITIONS OF OCCURRENCE

Геодинамика и тектонофизика
The paper examines the specific granitoid magmatism of the northern sector of the Kibaran orogenic belt in the general context of geodynamic typification of granitoids.
V. M. Nenakhov, B. Barihuta, V. V. Ilin
doaj   +1 more source