نتایج جستجو برای: future mineral resources

تعداد نتایج: 835440  

Journal: :Environmental development 2022

To keep the increase in global average temperature below 2 °C use of renewable energy sources is essential. There are various scenarios for this transition depending on amounts and types energies implemented. However, material requirements to build new power systems rarely considered. It key understand impact that increasing demand materials technologies could have mining mineral availability s...

Journal: :Geographical Review 1992

Journal: :The ANNALS of the American Academy of Political and Social Science 1909

2007
Robert L. Bradley Bradley

Economists inside and outside of the Austrian-school tradition have formulated a subjectivist theory of mineral resources. While von Mises (1940) presented a rudimentary theory, institutionalist Zimmermann (1933 and after) provided an indepth mind-centered approach distinct from the objective, neoclassical theory for minerals developed by Jevons (1865, 1866), Gray (1913), and Hotelling (1931). ...

Journal: :int. journal of mining & geo-engineering 2015
fathi habashi

metals used in everyday life are produced from ores occurring in the earth’s crust. geological processes are known to concentrate minerals to form ores of economic value. mineral processing engineers concentrate these ores by mechanical and physico-chemical methods while the extractive metallurgist extracts the metals by chemical means.

Journal: :Tetsu-to-Hagane 1984

Journal: :Journal of Geography (Chigaku Zasshi) 1972

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