Results 31 to 40 of about 33,816 (306)

U-Pb Isotopic Dating of Monazite in Granite from the Changjiang Uranium Orefield, Northern Guangdong Province and Its Geological Significance

open access: yesYankuang ceshi, 2022
BACKGROUND The Changjiang uranium ore field in the southern margin of the Zhuguangshan complex pluton is a typical granite-type uranium ore field in China. Zircon U-Pb dating has been used to date ore-bearing granites. However, due to the high content of
CHEN Yan   +6 more
doaj   +1 more source

Physico-mechanical properties and shielding efficiency in relation to mineralogical and geochemical compositions of Um Had granitoid, Central Eastern Desert, Egypt

open access: yesFrontiers in Earth Science, 2023
The current work aims to describe the physico-mechanical characteristics and shielding efficiency with reference to the mineralogical and geochemical compositions of the Neoproterozoic Um Had composite granitoid pluton in order to deduce their ...
Mohammed A. Rashwan   +9 more
doaj   +1 more source

Comment on “Bilaterian Burrows and Grazing Behavior at >585 Million Years Ago” [PDF]

open access: yes, 2013
Pecoits et al. (Reports, 29 June 2012, p. 1693) describe bilaterian trace fossils and assign them an Ediacaran age based on the age of a granite interpreted as intrusive.
Beri, Angeles   +4 more
core   +2 more sources

Lithium Isotope Fractionation During Intensive Felsic Magmatic Differentiation

open access: yesGeochemistry, Geophysics, Geosystems, 2023
The Xihuashan and Yaogangxian granitic plutons in South China comprise highly evolved multiphase Li‐rich granites and host quartz‐vein‐type tungsten deposits.
Jie‐Hua Yang   +4 more
doaj   +1 more source

A more informative way to name plutonic rocks — comment by Frost et al. [PDF]

open access: yes, 2019
Published ...
Anderson, J. Lawford   +4 more
core   +1 more source

3D magnetic model of the Korsun-Novomirgorod pluton and the Novoukrainka massif and its geological interpretation

open access: yesГеофизический журнал, 2013
Three-dimensional model of the upper and middle crust of the Korsun-Novomirgorod pluton and the Novoukrainka massif has been constructed applying the maps of anomalous magnetic field of a scale 1: 200 000, the data of gravity modeling and DSS.
I.K. Pashkevich, M. Bakarzhieva
doaj   +1 more source

Geochemistry and geochronology of granitoid rocks of the Taatsiin Gol pluton of the Khangai Complex, Central Mongolia

open access: yesMongolian Geoscientist, 2021
The Taatsiin Gol pluton is one of the major constitute the intrusive body of the Khangai Complex, and is composed the first phase of diorite, the second phase of porphyritic granite, biotite-hornblende granite, and granodiorite, and the third phase of ...
Tsogoo Bayasgalan   +3 more
doaj   +1 more source

Early Cenozoic denudation of central west Britain in response to transient and permanent uplift above a mantle plume [PDF]

open access: yes, 2018
Upwelling mantle plumes beneath continental crust are predicted to produce difficult to quantify, modest uplift and denudation. The contribution of permanent and transient components to the uplift is also difficult to distinguish.
Al-Kindi   +98 more
core   +1 more source

Mesozoic–Cenozoic Thermochronology of the Tarim–Southern Tianshan System, NW China

open access: yesGeological Journal, EarlyView.
Tectonothermal history of the Tarim–Southern Tianshan system compared with the major tectonic events at far‐field plate margins. ABSTRACT The Tarim Basin, an oil‐bearing basin in northwest China, is tectonically and sedimentologically linked to the Southern Tianshan Orogenic Belt.
Shuangfeng Zhao   +4 more
wiley   +1 more source

Petrogenetic processes in the ultramafic, alkaline and carbonatitic magmatism in the Kola Alkaline Province: a review [PDF]

open access: yes, 2005
Igneous rocks of the Devonian Kola Alkaline Carbonatite Province (KACP) in NW Russia and eastern Finland can be classified into four groups: (a) primitive mantle-derived silica-undersaturated silicate magmas; (b) evolved alkaline and nepheline syenites; (
Balaganskaya, E.   +4 more
core   +1 more source

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