Results 31 to 40 of about 22,282 (212)

Modulus of Elasticity of Concretes from Polish and Ukrainian Crushed Aggregates from Igneous Rocks

Budownictwo i Architektura, 2014
Test results concern modulus of elasticity and compressive strength of ordinary concretes made of various coarse aggregates from igneous rocks. Test results of some properties of these aggregates (3 crushed granites, 3 basalts, granodiorite, natural ...
Waldemar Budzyński, Jacek Góra, Wojciech Piasta, Tadeusz Turkiewicz   +3 more
doaj   +1 more source

Structure of a Variscan migmatite-granite transition zone (N Sardinia, Italy)

Journal of Maps, 2023
This paper presents the structural map of the Barrabisa Complex, an E-W ribbon-like migmatitic massif exposed in the northern part of Sardinia. The migmatites consist of metatexites and diatexites with variable melt proportion, grading in the central ...
M. De Luca, N. Ruberti, G. Oggiano, Ph. Rossi, V. Pascucci, L. Casini   +5 more
doaj   +1 more source

Hydrophobic Coatings Based on Zinc Oxide Nanoparticles for the Protection of the Granodioritic Sphinx Statue at the Open-Air Museum of Kom EL Dikka, Alexandria, Egypt [PDF]

International Journal of Multidisciplinary Studies in Heritage Research, 2023
The research paper aims to study the use of zinc oxide nanocomposites to protect the granodiorite sculptures exposed to outdoor conditions. Protecting stone cultural heritage is a major challenge due to ongoing exposure of stone materials to complex ...
Moshira Hamad
doaj   +1 more source

Alteration Mechanism of Variscan Granite in a Project Area at the Northern Foot of the Tianshan Mountains, China

Applied Sciences, 2023
Long-term erosion of granite—a type of hard rock—by hydrothermal fluids and tectonic movement can lead to a fragmentation of the internal structure of the original rock, transfer/replacement of mineral elements, and alteration of the rock’s basic ...
Tong Wu, Shang Shi, Minghao Ren, Jingwen Wang, Jinyu Dong   +4 more
doaj   +1 more source

Zircon and apatite U-Pb geochronology of the Paleoproterozoic (Eburnean) basement and late Neoproterozoic (Pan-African) metamorphism and magmatism from Port-Béni, Armorican Massif (France)

BSGF - Earth Sciences Bulletin
By re-examining the historical outcrops of Port-Béni located in the Trégor unit of the North Armorican Cadomian belt, the present work delivers four new ages that provide additional constraints on the Proterozoic history of northern Brittany.
Poujol Marc, Hallot Erwan, Abiven Baptiste, Poulizac Aymeric   +3 more
doaj   +1 more source

Influence of elevated temperature exposure on the residual compressive strength and radiation shielding efficiency of ordinary concrete incorporating granodiorite and ceramic powders

Scientific Reports
This research investigates the potential of utilizing types of construction waste as partial cement replacements within concrete formulations. Notably, granodiorite and ceramic powders were introduced at varying substitution ratios.
Alaa A. Mahmoud, Alaa A. El‐Sayed, Ayman M. Aboraya, Islam N. Fathy, Mohamed A. Abouelnour, Maged E. Elfakharany, M. Fattouh, Abdelmoniem E. Alahmer, I. M. Nabil   +8 more
semanticscholar   +1 more source

(Table 1) Geochemical composition of the Mazagan granodiorite at DSDP Hole 79-544A

, 1984
(Table 1) Geochemical composition of the Mazagan granodiorite at DSDP Hole 79 ...
Kreuzer, H, Reinecke, T, Wissmann, Gerd, P Müller (6973373), Gerd Wissmann (6973376), H Kreuzer (6973370), T Reinecke (6973379), Müller, P   +7 more
core   +1 more source

Unveiling the radiation shielding efficacy of diorite, granodiorite, tonalite, and granite: experimental and simulation study

Scientific Reports
For the purpose of this study, four natural rock samples-namely, diorite, granodiorite, tonalite, and granite-are being investigated about their radiation attenuation.
M. Elsafi, M. A. El-Nahal, M. K. Alawy, I. M. Nabil   +3 more
semanticscholar   +1 more source

At the Dawn of Continents: Archean Tonalite-Trondhjemite-Granodiorite Suites

Elements
Archean rocks of the tonalite-trondhjemite-granodiorite (TTG) suite are dominant constituents of Earth’s earliest preserved silicic crust, while conversely rare in Phanerozoic continental crust.
Oscar Laurent, M. Guitreau, E. Bruand, J. Moyen   +3 more
semanticscholar   +1 more source