نتایج جستجو برای: metallic mineral industry

تعداد نتایج: 295309  

2006
L. F. Lim J. E. Emery T. H. McConnochie

Introduction: We are conducting a survey of the emission spectra of 27 class M asteroids using the Spitzer Infrared Spec-trgraph (IRS; 5.2–38 µm). Although the visible and near-IR spectra of these asteroids are nearly featureless, ten of these asteroids are now known to have hydration features at 3 µm that are absent in the spectra of 15 others [1]. High S/N spectroscopy of these asteroids in t...

2016
David Finnoff Arthur J. Caplan DAVID FINNOFF

111 We present a computable general equilibrium model of the interface between the Great Salt Lake (GSL) ecosystem and the regional economy that impacts the ecosystem. With respect to the ecosystem, the model treats the various representative species as net-energy maximizers and bases population dynamics on the period-by-period sizes of surplus net energy. Energy markets-where predators and pre...

2011
Luca Bindi PauL J. Steinhardt Peter J. Lu

Icosahedrite, ideally Al63Cu24Fe13, is a new mineral from the Khatyrka River, southeastern Chukhotka, Russia. It occurs as dark gray-black anhedral to subhedral grains up to 100 μm across, closely associated with spinel, diopside, forsterite, nepheline, sodalite, corundum, stishovite, khatyrkite, cupalite, and an unnamed phase of composition AlCuFe. Icosahedrite is opaque with a metallic luster...

2010
WADE C. ROBERTS Wade C. Roberts

Nutritional minerals have been sourced from the Great Salt Lake (GSL) and provided to domestic and international markets since 1969. Endorheic properties of the lake leading to high mineral concentrations, in conjunction with the vastness of the lake, set the GSL apart as the most logical location for nutritional mineral extraction in the world. In spite of the vast abundance of mineral-based r...

2017
Wenbin Ma Dingena Schott Gabriël Lodewijks Glen Corder

Deep sea mining tailings disposal is a new environmental challenge related to water pollution, mineral crust waste handling, and ocean biology. The objective of this paper is to propose a new tailings disposal procedure for the deep sea mining industry. Through comparisons of the tailings disposal methods which exist in on-land mining and the coastal mining fields, a new tailings disposal proce...

Journal: :British journal of industrial medicine 1967
W R Lee J K McCann

Although mule spinning has been used in the cotton and wool industries for about two centuries, the *earliest recorded cases of mule spinners' cancer were not reported until the end of the nineteenth century. From then on the number of cases rapidly increased. Evidence accumulated which strongly suggested that the mineral oil used to lubricate the mule spindles was the cause. It is remarkable t...

1999
Scott Flander John Paul Kennedy Christopher Robinson

The southern part of Skull Valley has potential for shallowly buried mineral deposits. The most likely deposit type is either skarn/porphyry copper deposits, perhaps with surrounding polymetallic lead-zinc-silver replacement deposits or "distal disseminated" gold-silver deposits. The area (1) is structurally complex with both thrust and high-angle faults, (2) contains lithologic units favorable...

Journal: :تحقیقات جغرافیایی 0
محمدرضا نقوی گروه جغرافیا، دانشگاه تربیت مدرس عبدارضا رکن الدین افتخاری گروه جغرافیا، دانشگاه تربیت مدرس مهدی پورطاهری گروه جغرافیا، دانشگاه تربیت مدرس

rapid population increase, expanding urbanization, lack of employment opportunities, particularly in agriculture, population pressure on natural resources and failing to create and expand medium and large industries, especially in developing countries led industrialization strategy that these countries from the mid-decade villages 1970 in their development programs to consider. this year emphas...

Journal: :pollution 2015
ikbal hussain jakir hussain mohammed arif vinod vadiya

rajasthan is one of the main mineral potential state of india. during the last 30 years it has witnessed enormous expansion of mining industries, but mining of most of the minor minerals coupled with changing climate has posed serious problems to the environmental fabric in the state, apart from base metal beneficiation plants. groundwater is also being polluted day-by-day by effluents generate...

2003
Gary Banks

The history of the mining industry is intimately connected with government regulation. As in many other countries, this reflects the fact that the Crown has reserved almost all mineral rights to itself. In many cases regulation has had adverse consequences for the sector. A notorious example was the ban on exports of iron ore in the 1960s, which depressed exploration activity and postponed the ...

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