Results 71 to 80 of about 167,615 (303)

Neyshabour turquoise mine: the first Iron Oxide Cu-Au-U-LREE (IOCG) mineralized system in Iran

Journal of Economic Geology, 2012
Neyshabour turquoise mine is located in northwest of Neyshabour, southern Quchan volcanic belt. Eocene andesite and dacite forming as lava and pyroclastic rocks cover most of the area.
Mohammad Hasan Karimpour, Azade Malekzadeh Shafaroudi, Akbar Esfandiarpour, Hasan Mohammad Nejad   +3 more
doaj  

PALEOZOIC INTRAPLATE MAGMATISM OF THE EAST EUROPEAN PLATFORM: COMPARATIVE ANALYSIS OF THE PRIPYAT-DNIEPER-DONETS RIFT ZONE AND THE KOLA-ARKHANGELSK PROVINCE

Геодинамика и тектонофизика
This paper presents a comparative analysis of geochronological, geochemical, Sr-Nd isotopic data and geodynamic conditions for the Devonian magmatism of the East European Platform, using as an example the Pripyat-Dnieper-Donets rift zone in the south of ...
E. V. Yutkina, A. V. Kargin, A. A. Nosova, O. F. Kuzmenkova, L. V. Sazonova, I. A. Kondrashov   +5 more
doaj   +1 more source

Advancing mine pillar design: Evaluating traditional methods and integrating AI for enhanced stability of pillars in the Great Dyke, Zimbabwe

Deep Underground Science and Engineering, EarlyView.
B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza, Hendrik Grobler, Peter Apata Olubambi, Moshood Onifade, Manoj Khandelwal   +4 more
wiley   +1 more source

Petrology and geochemistry of volcanic rocks of Cheshmeh Khuri and Shekasteh Sabz areas, Khur, northwest of Birjand [PDF]

پترولوژی, 2016
Khur area is located in east of Iran and northwest of Birjand. The area comprises outcrops of Eocene to Oligocene volcanics with basaltic andesite to rhyolite composition, which were intruded by subvolcanic and intrusive bodies of granodiorite to gabbro.
Maryam Javidi Moghaddam, Mohammad Hassan Karimpour, Khosrow Ebrahimi Nasrabadi, Azadeh Malekzadeh Shafaroudi, Mohammad Reza Hidarian Shahri   +4 more
doaj  

Co AND Ni MINERALS IN ORES OF THE MIKHEEVSKOE PORPHYRY Cu DEPOSIT (SOUTH URALS) [PDF]

Минералогия
Co and Ni minerals are described in ores of the Mikheevskoe porphyry copper deposit (South Urals, Russia). Minerals of the cobaltite–gersdorfite series (CoAsS–NiAsS), violarite (FeNi2S4), millerite (NiS), pentlandite (Ni5.5Fe3.4)8.9S8.0 and melonite ...
O.Yu. Plotinskaya, E.V. Kovalchuk
doaj   +1 more source

The formation of ore mineral deposits on the Moon: A feasibility study [PDF]

Most of the ore deposits on Earth are the direct result of formation by hydrothermal solutions. Analogous mineral concentrations do not occur on the Moon, however, because of the absence of water.
Lu, Fengxiang, Taylor, Lawrence A.
core   +1 more source

More than ore : modern Spanish steel, 1856-1936 [PDF]

, 2001
Contrasting the iron law of the principle of comparative advantages as the determinant of the international division of labour has attracted dissidents to the international trade paradigm over the years.
Houpt, Stefan
core   +1 more source

Air Stability of Sulfide Solid Electrolytes: From Theoretical Insights to Practical Solutions

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This paper reviews research progress on the air stability of SSEs, covering their instability mechanisms and modification strategies, while outlining core challenges and future directions for practical applications. Sulfide solid electrolytes are pivotal for enabling high‐performance all‐solid‐state batteries due to their high ionic conductivity and ...
Hongbing Ding, Yue Hu, Xin Li, Yang Su, Xinlu Wang, Hongbo Zhang, Guixia Liu, Wensheng Yu, Xiangting Dong, Jinxian Wang, Xin Wang   +10 more
wiley   +1 more source

Interpretation of Lineaments Within the Western Part of the Baikal-Patom Belt Using a Multiscale Tectonophysical Approach in the Context of Ore-Forming Systems Prediction

Georesursy
In the article, using the territory of the western part of the Baikal-Patom belt as an example, an author’s approach to the automatic extraction of lineaments reflecting various scale levels of the development of the fault network framework is proposed ...
S. A. Ustinov, V. A. Petrov, A. A. Andreev, A. D. Svecherevsky, I. A. Kochkin, V. V. Shukhov   +5 more
doaj   +1 more source

Gold and other impurity elements in pyrite from the Berezovskoe deposit in the Middle Urals

Литосфера, 2019
Research subject. In this work, we investigated the crystals of pyrite, one of the key gold-bearing minerals, from the Berezovskoe (the Middle Urals) deposit using modern research approaches.Materials and methods.
N. V. Sidorova, I. V. Vikent’ev, V. D. Abramova, E. V. Koval’chuk   +3 more
doaj   +1 more source