Results 71 to 80 of about 1,193 (219)

Radiogenic Heating as the Thermal Driver of Himalayan Crustal Heating During Prolonged Thickening

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 11, November 2025.
Abstract The thermal evolution of the crust during continental collision evolves from cold to hot with time, which impacts crustal reworking and differentiation. However, it remains elusive as to the mechanism driving the crust to be hot during the protracted collision.
Shuaiqi Liu   +4 more
wiley   +1 more source

Myrmekite in the Rubidoux Mountain leucogranite - a replacement pluton

open access: yes, 1997
The Rubidoux Mountain leucogranite is one of many granitic plutons that occur in the eastern part of the Southern California batholith in the Peninsular Range province (Larsen, 1948; Banks, 1963).
Collins, Lorence G.
core  

On the geodynamics of the Alpine collisional granitoids from Central Anatolia: petrology, age and isotopic characteristics of the granitoids of the Ekecikdağ Igneous Association (Aksaray/Turkey)

open access: yesGeodinamica Acta, 2019
Granitoids of the Ekecikdağ Igneous Association (Central Anatolia/Turkey) are products of collisional–post-collisional magmatism in the Ekecikdağ area. These granitoids are granodiorite, microgranite and leucogranite.
Fatma Toksoy-Köksal
doaj   +1 more source

Petrogenetic and mineralogical constraints in metamorphic-plutonic complex of N-Bijar, Kordestan, Iran [PDF]

open access: yesپترولوژی
IntroductionThe Sanandaj-Sirjan metamorphic-magmatic zone (SSZ) (with 1500 km in length and 150-200 km in width) along with the Urumieh-Dokhtar magmatic arc as well as the folded-thrust belt of Zagros comprise the Zagros orogeny in south west of Iran ...
Maryam Bafandeh   +2 more
doaj   +1 more source

Long‐Lasting Plutonism During Orogenic Cycles: Incremental Emplacement of the Variscan Bassiès Pluton (Central Pyrenees, France)

open access: yesTerra Nova, Volume 37, Issue 5, Page 316-323, October 2025.
ABSTRACT Laser ablation U–Pb single zircon geochronology was applied to four peraluminous granite and granodiorite samples from the Bassiès pluton in the Central Pyrenees (France) yielding a wide range of concordant ages from early Carboniferous (Tournaisian, 351 Ma) to early Permian (Artinskian, 285 Ma).
Stephan Schnapperelle   +5 more
wiley   +1 more source

Leucogranite genesis connected with low-pressure high-temperature metamorphism in the Sila basement (Calabria, Italy)

open access: yes, 2003
A Late-Hercynian intrusion of two-mica leucogranite from the Sila (Calabria, Italy) has been examined for petrographic, geochemical, and radiogenic isotope characteristics.
DEL MORO A.   +8 more
core  

Leucogranite intruding the South Tibetan Detachment in western Nepal: implicarions for exhumation models in the Himalayas

open access: yes, 2013
The most popular models regarding the exhumation of the Greater Himalayan Sequence (GHS), such as extrusion, channel flow, critical taper and wedge extrusion, require prolonged activity of the two bounding shear zones and faults, the Main Central Thrust (
MONTOMOLI, CHIARA   +3 more
core   +1 more source

Dating deformation using sheared leucogranite: temporal constraints by 40Ar/39Ar thermochronology for the Mae Ping shear zone, NW Thailand

open access: yes, 2021
The Mae Ping shear zone (MPSZ) is one of the major ductile strike-slip systems associated with the Cenozoic extrusion tectonics in Southeast Asia. However, its sinistral shear lacks a robust temporal constraint.
Quek, Long Xiang   +7 more
core   +1 more source

DURATION OF GRANITOID MAGMATISM IN PERIPHERAL PARTS OF LARGE IGNEOUS PROVINCES (BASED ON 40AR/39AR ISOTOPIC STUDIES OF ALTAI PERMIAN-TRIASSIC GRANITOIDS)

open access: yesГеодинамика и тектонофизика, 2017
In large igneous provinces (LIP) of fold areas, granitoid rocks are dominant, while mantle-derivated rocks play a subordinate role in rock formation. If magma emissions are impulsive, it may take 25–30 million years for a LIP to form and take shape.
O. A. Gavryushkina   +2 more
doaj   +1 more source

Multi‐Stage Crustal Thickening, Surface Uplift, and Collision in the Western Himalaya‐Karakoram‐Tibet Orogen Revealed by Chemical Mohometry

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 9, September 2025.
Abstract The Himalaya‐Karakoram‐Tibet (HKT) orogen provides an unrivaled opportunity to study the dynamic linkages between deep and surface processes during collisional orogenesis. However, these efforts are hindered by conflicting interpretations on the number and timing of collisional events, and the timing of crustal thickening and associated ...
Ian W. Hillenbrand, Victor E. Guevara
wiley   +1 more source

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