Results 21 to 30 of about 6,255 (170)

Short-term exposure to stone minerals used in asphalt affect lung function and promote pulmonary inflammation among healthy adults

Scandinavian Journal of Work, Environment & Health, 2022
OBJECTIVE: Stone minerals are a partially ignored environmental challenge but a significant contributor to urban air pollution. We examined if short-term exposure to two stone minerals – quartz diorite and rhomb porphyry – commonly used in asphalt ...
Therese Nitter Moazami, Bjørn Hilt, Kirsti Sørås, Kristin V Hirsch Svendsen, Hans Jørgen Dahlman, Magne Refsnes, Marit Låg, Johan Øvrevik, Rikke Bramming Jørgensen   +8 more
doaj   +1 more source

Geology, alteration, mineralization, Geochemistry, fluid inclusion, petrology, petrogenises and U-Pb zircon dating of diorite dykes in the Robaie copper area (South of Damghan)

Journal of Economic Geology, 2020
Introduction The Robaie copper area is located 95 kilometers South of Damghan in the Semnan province. The study area has coordinates between 54˚30΄37˝to 54˚30΄42.71˝ latitude and 35˚22΄29.41˝ to 35˚23΄47.54˝ longitude. Geotectonically, the study area is
Mehdi Mahdavi Akerdi, Azadeh Malekzadeh Shafaroudi, Mohammad Hassan Karimpour, Behnam Rahimi   +3 more
doaj   +1 more source

Se(IV) uptake by Äspö diorite: Micro-scale distribution [PDF]

, 2014
Risk assessment of deep geological repositories (DGR) for high level radioactive waste demands radionuclide (RN) sorption data, with minimised uncertainties, on repository barriers.
PATELLI, ALESSANDRO, Alonso, Ursula, Garcia Gutierrez, Miguel, CECCATO, DANIELE, Missana, Tiziana, Rigato, Valentino, Garc??a-Guti??rrez, Miguel, García-Gutiérrez, Miguel   +7 more
core   +1 more source

Earth’s crust composition of the Ingul megablock of the Ukrainian Shield (types of crust) and patterns of location of ore mineral resources

Геофизический журнал, 2017
Within the Ingul Megablock of the Ukrainian Shield, according to the data of three-dimensional density modeling, at the scale of 1 : 200 000, the thickness of conditionally allocated “granite”, “diorite”, “basalt” layers, which abroad have the name of ...
V. I. Starostenko, P. Ya. Kuprienko, I.B. Makarenko, A. Savchenko, O.V. Legostaeva   +4 more
doaj   +1 more source

Basement rocks around the eastern sector of Baranis-Aswan Road, Egypt: Remote sensing data analysis and petrology

Egyptian Journal of Remote Sensing and Space Sciences, 2022
The basement rocks around Baranis-Aswan Road, South Eastern Desert of Egypt encompasses a variety of the oldest Pan-African rock units including medium-grade hornblende schist, a variety of gneisses and migmatite as well as medium- to low-grade ...
Mohamed W. Ali-Bik, Mohamed F. Sadek, Safaa M. Hassan   +2 more
doaj   +1 more source

The thermal damaging process of diorite under microwave irradiation [PDF]

Fracture and Structural Integrity, 2019
Laboratory tests have been conducted to investigate the effects of thermal damage on diorite under microwave irradiation. The sample rocks were heated to high temperature range of 300 to 800 ? in a single-mode microwave furnace.
He Leping, Chen Yuan, Zeng Junsen, Hu Qijun, Shao Dadong, Zhang Haibin, Lu Xirui   +6 more
doaj   +1 more source

Applicability of additive mass method in density tests on soil-mixture materials

Yantu gongcheng xuebao, 2023
The additive mass method (AMM) has been applied in the density tests on different materials of many earth-rockfill dams. With the development of hydropower projects in recent years, the soil-rock mixtures (S-RM) with wide gradation and high fines content
XU Siyuan 1, 2, CHEN Shengshui 1, 2, FU Zhongzhi 1, 2, LIU Sihong 3, CIREN Yundan 4
doaj   +1 more source

MOISTURE ABSORPTION OF COMPOSITES MADE FROM UNSATURATED POLYESTER FILLED WITH PULVERIZED SANDSTONE, DIORITE AND CORNSTALK [PDF]

, 2015
Moisture absorption of materials is one major concern in any engineering design. This is because moisture absorption is capable of leading to material degradation and ultimate failure.
Izijesu Osikia, Thimothy Thamae
core   +1 more source

Short-lived active margin magmatism preceding Variscan collision in the Western French Massif Central

BSGF - Earth Sciences Bulletin
This paper presents and discusses new geochronological and petrological data on a suite of calc-alkaline plutons composed predominantly of diorites and tonalites from the West Massif Central.
Berger Julien, Beau-Hurdebourcq Léa, Serrano Julien, Benoit Mathieu, Grégoire Michel, Benmammar Anissa, Duchene Stéphanie, Bruguier Olivier, Baele Jean-Marc   +8 more
doaj   +1 more source

Mix Proportion Design of Tunnel Shotcrete Based on Diorite Manufactured Sand

Zhongwai Gonglu
Tunnel construction produces a large amount of waste slag, which cannot be effectively utilized due to various factors. By using tunnel slag to prepare manufactured sand to replace natural sand, resources can be saved; costs can be reduced, and the ...
SONG Funing, WANG Zegang, LIU Naifei, SONG Zhanping   +3 more
doaj   +1 more source