@ARTICLE{Jasiewicz_Jan_Anachronism_2007,
 author={Jasiewicz, Jan and Głodzik, Stanisław and Magda, Roman and Woźny, Tadeusz},
 number={No 4},
 pages={5-18},
 journal={Gospodarka Surowcami Mineralnymi - Mineral Resources Management},
 howpublished={online},
 year={2007},
 publisher={Komitet Zrównoważonej Gospodarki Surowcami Mineralnymi PAN},
 publisher={Instytut Gospodarki Surowcami Mineralnymi i Energią PAN},
 abstract={A fact that in spite of more and more often affords aimed to correction of actually obligatory recoverability criteria related with pol i-metallic ore deposits do not follow current increase of the deposit value resulting from high copper prices on the World markets was pointed out in the present study. Based on the analysis of two geological bore-holes it was proved in the study that actual value of Im2 of the deposit occurring around the bore-hole, from which the data are classified according to current and former criteria as non-recoverable (because of small efficiency or too low equivalent percentage content of Cu), is comparable to value of Im2 of the deposit classified according to criterions from the year 1977 (and actual) as recoverable resources. Some doubts were also pointed out with respect to calculation procedure of equivalent Cu percentage content taking under consideration rigid parity Cu versus Ag, as the value of silver is usually overestimated, and moreover, price fluctuations of these both metals are not mutually correlated.},
 title={Anachronism of the obligatory copper ores recoverability criteria in Pre-Sudetian Monoclyne considered in aspect of high metal prices},
 type={Article},
 URL={http://journals.pan.pl/Content/133721/PDF/3_GSM_23_4_2007_Jasiewicz_Anachronism.pdf},
 keywords={Copper ore mining, deposit resources, economy of resources, recoverability criteria},
}