Results 21 to 30 of about 11,069 (182)

Petrogenesis of Mantle-Hosted Granitoids from the Samail Ophiolite

open access: yes, 2023
Granitoids with evolved chemical signatures, intruding both oceanic crustal rocks and mantle peridotite, are well known in the Samail supra-subduction ophiolite of Oman and United Arab Emirates.
Tiago Valim Angelo   +9 more
core   +1 more source

Granitoids of Sanandaj-Sirjan Zone that are concurrent with Cimmerian Orogeny (178-160 Ma) belong to ilmenite series (S-type): investigation of reason for lacking the porphyry tin mineralization

open access: yesJournal of Economic Geology, 2021
ntroduction The granitic rocks are divided into magnetite and ilmenite series (Ishihara 1977), coinciding spatially with the I-type (εNdi0; (87Sr/86Sr)i~0.704-0.706) and S-type granites (εNdi0.707, N-MORB normalized patterns with enrichment in Low- and ...
Mohammad Hassan Karimpour   +2 more
doaj   +1 more source

The Mesozoic and Palaeozoic granitoids of north-western New Guinea [PDF]

open access: yes, 2018
A large portion of the Bird's Head Peninsula of NW New Guinea is an inlier that reveals the pre-Cenozoic geological history of the northern margin of eastern Gondwana. The peninsula is dominated by a regional basement high exposing Gondwanan ('Australian'
Max Webb   +7 more
core   +1 more source

High-K, I-type Tonian post-collisional magmatism in the South Delhi Terrane, NW India: Petrogenetic and tectonic implications

open access: yesGeosystems and Geoenvironment
The limited whole-rock geochemical data of the granitoids exposed in the southern domain of the South Delhi Terrane, Aravalli orogen, northwestern India characterised these rocks as subduction-related continental arc I-type granites.
Manisha   +2 more
doaj   +1 more source

Use of petrophysical data for siting of deep geological repository of radioactive waste

open access: yesE3S Web of Conferences, 2017
The paper is devoted to analyzing the petrophysical properties and petrographical characteristics of Volyn region with the view to choosing the least permeable and so the most suitable geological formation for the radioactive waste disposal.
Petrenko Liliana, Shestopalov Vyacheslav
doaj   +1 more source

Mechanical properties of selected granitoids along the Karora hydropower project, Besham, Northern Pakistan: Insights from petrography and joint analysis

open access: yesFrontiers in Earth Science, 2023
The stability of tunnel site depends upon the deformation behaviors of the surrounding rocks, including joint density, mineral composition, micro cracks, and grain boundaries.
Musa Khan   +6 more
doaj   +1 more source

Archean granitoids of the Aravalli Craton, northwest India

open access: yes, 2020
Table 1: Major (wt%) and trace element (ppm) data of Archean granitoids of the Aravalli Craton, NW India; Table 2: Nd-isotope data of Archean granitoids of the Aravalli Craton, NW ...
Md Sayad Rahaman (8422398)   +4 more
core   +1 more source

Radiogenic heat production in granitoids from the Sierras de Córdoba, Argentina

open access: yesGeothermal Energy, 2021
One of the most important processes of heat generation from the Earth's interior is the radioactive decay of isotopes. The main hosts of the major radiogenic elements U, Th and K in the crust are granitoids.
M. Pleitavino   +3 more
doaj   +1 more source

Geological and isotopic characteristics of granites from the Western Pernambuco-Alagoas Domain: implications for the crustal evolution of the Neoproterozoic Borborema Province

open access: yesBrazilian Journal of Geology
The Western Pernambuco-Alagoas Domain is a complex tectonic domain of the Southern part of the Neoproterozoic Borborema Province. It borders the Northern margin of São Francisco Craton. U-Pb and Sm-Nd data discussed in this work show that, in the Western
Rodrigo Fabiano da Cruz   +3 more
doaj   +1 more source

Petrography, geochemistry and tectonic setting of ‎Hanar granitoids (south of Birjand): a signature for magmatism ‎identification of east of Lut block [PDF]

open access: yesپترولوژی, 2018
The Hanar granitoids, geographically located 155 km south of Birjand in the east of Iran. Geologically, It belongs to the Lut block volcanic–plutonic belt and occurs near to the Lut block-Sistan suture zone border. The granitoid rocks consist of tonalite,
Siavash Omidianfar   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy