Results 121 to 130 of about 278,731 (238)

Evaluating Forced Versus Plume‐Induced Subduction Initiation for the Talkeetna‐Bonanza Arc System: Implications for Permo‐Triassic Paleogeography of the North American Cordillera

Tectonics, Volume 45, Issue 9, September 2026.
Abstract The mechanisms by which new subduction zones form remain highly debated. Here we use Permo‐Triassic strata to evaluate potential mechanisms for initiation of the Talkeetna‐Bonanza Arc of the northern North American Cordillera. New mapping and analysis of Permian and Upper Triassic strata on the Alaska Peninsula suggest a period of uplift ...
Brandon M. Keough, Michael P. Eddy, Kenneth D. Ridgway   +2 more
wiley   +1 more source

Integrated Multi‐Physics Characterisation of the Northern Kiruna Mining District With Machine‐Learning‐Assisted Interpretation

Geophysical Prospecting, Volume 74, Issue 7, September 2026.
ABSTRACT Integrated earth modelling aims to combine all available geoscientific information to derive one common earth model. However, combining multiple parameters in a meaningful way remains challenging. In this study, we aim to improve mineral exploration workflows through the integration of new magnetotelluric data with other geophysical and ...
Oskar Rydman, Ervin Veress, Maxim Yu. Smirnov, Tobias E. Bauer, Thorkild M. Rasmussen, Niklas Juhojuntti   +5 more
wiley   +1 more source

Tectonic significance of Late Precambrian calc-alkaline and alkaline magmatism in Saint Katherina Area, Southern Sinai, Egypt

, 2021
Two magmatic rock suites are distinguished in the Late Precambrian basement of the Southern Sinai (NW Arabian-Nubian Shield, Egypt), namely (a) a calc-alkaline suite, and (b) an alkaline suite.
Kamal Azer, Mokhles
core  

Shallow and deep crustal control on differentiation of calc-alkaline and tholeiitic magma

, 2009
The role of changing crustal interaction and plumbing geometry in modulating calc-alkaline vs. tholeiitic magma affinity is well illustrated by the influence of 70 km thick crust beneath Volcan Parinacota.
Beard, Brian L., Johnson, Clark M., Woerner, Gerhard, Hora, John Milan, Jicha, Brian R., Singer, Bradley S.   +5 more
core   +1 more source

Partial Melting of Subducted Sediments Produced Early Mesozoic Calc-alkaline Lamprophyres from Northern Guangxi Province, South China. [PDF]

Sci Rep, 2017
Su HM, Jiang SY, Zhang DY, Wu XK.
europepmc   +1 more source

High-K calc-alkaline granitoid rocks in the Central Iberian Zone: the Garlitos-El Borracho area

, 1996
New petrographic and chemical data on the Garlitos pluton and other associated igneous rocks in the Almadén area have shown a high-K calc-alkaline character and clear simiarities with other calc-alkaline granitoids, in particular the lithotypes dominant ...
Pascual Martínez, Emilio, Higueras, Pablo L., Morata Céspedes, Diego, Donaire Romero, Teodosio   +3 more
core  

Middle Miocene calc-alkaline volcanism in Central Patagonia (47°S): petrogenesis and implications for slab dynamics Volcanismo calcoalcalino durante el Mioceno Medio en Patagonia Central (47°S): petrogénesis e implicaciones en la dinámica de placas

Andean Geology, 2010
We present a chronological (K-Ar), petrologic and geochemical study (major and trace elements, Sr-Nd isotopes) of Middle Miocene (ca. 16-14 Ma) calc-alkaline rocks (basalts to andesites) extruded in the present-day back-arc region of Central Patagonia ...
Felipe Espinoza, Diego Morata, Mireille Polvé, Yves Lagabrielle, René C Maury, Aude de la Rupelle, Christèle Guivel, Joseph Cotten, Hervé Bellon, Manuel Suárez   +9 more
doaj  

Calc-alkaline rocks

, 2006
J. SouČek, F. V. Holub, E. JelÍnek, H. KlÁpovÁ   +3 more
openaire   +1 more source

Petrography, geochemistry and tectonic setting of Salmabad Tertiary volcanic rocks, southeast of Sarbisheh, eastern Iran

Journal of Economic Geology, 2014
Introduction The area reviewed and studied in this paper is located 5 km southeast of Sarbisheh city at eastern border of the Lut block (Jung et al., 1983; Karimpour et al., 2011; Richards et al., 2012) in eastern Iran between 59° 47′ and 59° 53′ E ...
Masoumeh Goodarzi, Seyyed Saeid Mohammadi, Mohammad Hossein Zarrinkoub   +2 more
doaj  

Modern arc-like water content in the source of 3.1-billion-year-old volcanic rocks. [PDF]

Nat Commun
Vandenburg ED, Nebel O, Smithies RH, Cawood PA, Miller LA, Millet MA, Capitanio FA.   +6 more
europepmc   +1 more source