Results 11 to 20 of about 9,387 (221)

Sr-Nd isotopic characteristic, U-Pb zircon geochronology, and petrogenesis of Najmabad Granodiorite batholith, Eastern Iran

open access: yesJournal of Economic Geology, 2012
The study area is located south of Ghonabad in Eastern Iran. This area is situated between two major faults, Darouneh to the north and Dashtbyaz to the south. The movements of these faults cased major dislocation of this block.
Mehrab Moradi Noghondar   +3 more
doaj   +2 more sources

Strength degradation of sandstone and granodiorite under uniaxial cyclic loading

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2018
Change in mechanical properties of rocks under static loading has been widely studied and documented. However, the response of rocks to cyclic loads is still a much-debated topic.
Rashid Geranmayeh Vaneghi   +3 more
doaj   +2 more sources

The origin of Cihara granodiorite from South Banten [PDF]

open access: yesIndonesian Journal on Geoscience, 2014
http://dx.doi.org/10.17014/ijog.vol3no2.20085Petrographical and geochemical characteristics of the Late Oligocene Cihara Granodiorite from South Banten are presented.
Udi Hartono   +2 more
doaj   +2 more sources

A gravity survey of the Criffel Granodiorite [PDF]

open access: yes, 1960
The results are presented of a gravity survey of the Criffel - Dalbeattie granodiorite complex and the surroundingarea, carried out from the Geology Department of the Durham Colleges.
Kennett, Peter
core   +6 more sources

Large Igneous Provinces (LIPs) and Anoxia Events in “The Boring Billion”

open access: yesGeophysical Monograph Series, Page 449-486., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Shuan‐Hong Zhang   +4 more
wiley  

+1 more source

Plastic deformation of the granodiorite gravel and sand-gravel mixtures when exposed to cyclic triaxial load [PDF]

open access: yesИнженерно-строительный журнал, 2013
This article gives an overview and analysis of models of plastic deformation of soils and granular materials. It was found that the most frequently used functions are power, logarithmic and exponential, connecting the plastic deformation with the ...
A.S. Aleksandrov
doaj   +1 more source

Petrology and tectonic settings of the Sarcheshmeh porphyry copper deposit with emphasis on granodiorite and quartz eye porphyry

open access: yesJournal of Economic Geology, 2020
Introduction The Sarcheshmeh porphyry copper deposit (PCD) and other porphyry deposits occur in the the most important metallogenic belt in Iran, i.e. the Urumieh-Dokhtar magmatic belt (UDMB).
Mohammad Maanijou   +3 more
doaj   +1 more source

Determination of Trace Zirconium in Granodiorite by Inductively Coupled Plasma-Mass Spectrometry with Sealed Acid Digestion at High Pressure

open access: yesYankuang ceshi, 2016
Determination of trace elements in rocks by Inductively Coupled Plasma-Mass Spectrometry with sealed acid digestion at high pressure is widely used in geological analysis.Zirconium occurs as insoluble accessory minerals such as zircon and rutile in ...
LI Wei-liang   +3 more
doaj   +1 more source

Petrographic and petrogenetic studies of adakitic magmatism of Gavdel (Shivar Dagh) in Garehdagh-South Arminian Zone (Northwest of Iran) (Irankuh Pb-Zn deposit, Southwest of Isfahan) [PDF]

open access: yesپترولوژی, 2017
Gavdel intrusive body, situated in NW Iran and NE of Uromieh-Dokhtar zone, is a part of Garehdagh, South-Arminian Zone (Arasbaran). The major outcrops of intrusive include of granodiorite, monzonite accompanied with granodioritic dyke.
Ahmad Jahangiri, Hossien Bahmodinia
doaj   +1 more source

Tectonic-magmatic setting for Early Cretaceous low-sulfidation epithermal gold deposits in the Xing–Meng Orogenic Belt: Constraints from zircon U–Pb and Hf isotopic data of wulaga deposit, NE China

open access: yesSolid Earth Sciences, 2022
The Xing–Meng Orogenic Belt hosts an amount of low-sulfidation epithermal gold deposits. However, the tectonic-magmatic setting remains problematic, which hinders understanding the factors that control the gold endowment in the region.
Yongbin Wang   +4 more
doaj   +1 more source

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