Results 61 to 70 of about 3,139 (203)

Early Jurassic Rare Metal Granitic Pluton of the Central Asian Orogenic Belt in North-Central Mongolia: Tungsten Mineralization, Geochronology, Petrogenesis and Tectonic Implications

open access: yesFrontiers in Earth Science, 2020
The Tukhum granitic pluton is a part of the Mesozoic composite Khentei batholith of north-central Mongolia, which belongs to the Central Asian Orogenic Belt. The shallow-seated pluton (∼900 km2) is made up of two distinct biotite granite intrusions dated
Jaroslav Dostal   +3 more
doaj   +1 more source

The crystalline units of the High Himalayas in the Lahul-Zanskar region (northwest India): metamorphic-tectonic history and geochronology of the collided and imbricated Indian plate [PDF]

open access: yes, 2017
In the High Himalayan belt of northwest India, crustal thickening linked to Palaeogene collision between India and Eurasia has led to the formation of two main crystalline tectonic units separated by the syn-metamorphic Miyar Thrust: the High Himalayan ...
Benna, P.   +6 more
core  

Extreme extension across Seram and Ambon, eastern Indonesia: Evidence for Banda slab rollback [PDF]

open access: yes, 2013
The island of Seram, which lies in the northern part of the 180°-curved Banda Arc, has previously been interpreted as a fold-and-thrust belt formed during arc-continent collision, which incorporates ophiolites intruded by granites thought to have been ...
Hall, Robert   +2 more
core   +4 more sources

Late Cretaceous to Eocene Sedimentary Source Change and Tectonic Evolution of Nanao Event in Taiwan: Implications From Detrital Zircon U‐Pb Geochronology

open access: yesTectonics, Volume 44, Issue 8, August 2025.
Abstract The tectonic evolution of the Taiwan orogenic belt from the Mesozoic to the Cenozoic remains unclear because of a lack of deterministic geochronological data for unraveling stratal sequences. The precise timing of the Nanao event is crucial for uncovering this evolution and is the focus of this study.
Chiu‐Lien Chang   +3 more
wiley   +1 more source

Geochemistry of Zircon from Pegmatite-bearing Leucogranites of the Laghman Complex, Nuristan Province, Afghanistan

open access: yesRussian Journal of Earth Sciences
For the first time, a study was carried out on the geochemistry of zircon (SIMS method, 2 samples, 20 points) from leucogranites of the Laghman complex, located in the pegmatite-bearing (LCT-type) province of Nuristan (Afghanistan).
Levashova Ekaterina Valer'evna   +4 more
doaj   +1 more source

Surface wave imaging using deep reflection seismic data: a study on the Cuonadong dome

open access: yesEarth, Planets and Space, 2022
As interference waves in deep reflection data processing, surface waves are often suppressed as noise, but surface waves carry considerable underground media information, including structural information and the physical properties of rocks.
Guangwen Wang   +7 more
doaj   +1 more source

Structural Architecture of the Cenozoic Kallianos (Post‐?)Orogenic Vein‐Hosted Au‐Ag‐Te Deposit and Its Relationship to the North Cycladic Detachment System, Greece

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 8, August 2025.
Abstract The Kallianos Au‐Ag‐Te deposit is a Cenozoic orogenic‐style deposit on Evia, hosted in the Cycladic Blueschist Unit. Integrated field observations and isotopic data illustrate a connection between the structural architecture that hosts mineralization in the deposit and the regional stress field associated with a crustal‐scale detachment, the ...
L. Hamel   +3 more
wiley   +1 more source

Geologic structure and composition of Munilkan massif Verkhoyansk-Kolyma orogenic area

open access: yesЛитосфера, 2015
This article presents the results of detailed study of geologic structure and composition of Munilkan massif of the Main batholith belt of Verkhoyansk-Kolyma mesozoides (Tas-Khayakhtakh Ridge).
V. A. Trunilina   +2 more
doaj   +2 more sources

GemmologicalCharacteristics of Gemstone Varieties Found in the Pegmatiteof Haramosh Area, Gilgit-Baltistan

open access: yesInternational Journal of Economic and Environment Geology, 2020
Haramosh valley is located in eastern side of Gilgit city (Fig. 1). Geographically it is located between 74°44' 17.37 " E and 35° 51 '8.97 " N. The area is a sub range of Karakoram in the south-central region of the Rakaposhi–Haramosh mountains ...
Javed Akhtar Qureshi, Mudasir Ali, Zohaib Hassan, Muhammad Alam, Memoona Niloofar, Sabit Rahim
doaj   +1 more source

Zircon U–Pb–Hf constraints from Gongga Shan granites on young crustal melting in eastern Tibet [PDF]

open access: yes, 2018
The Gongga Shan batholith is a complex granitoid batholith on the eastern margin of the Tibetan Plateau with a long history of magmatism spanning from the Triassic to the Pliocene. Late Miocene–Pliocene units are the youngest exposed crustal melts within
Roberts, Nick M.W., Searle, Michael P.
core   +1 more source

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