標(biāo)題: Titlebook: Economic Evaluations in Exploration; Friedrich-Wilhelm Wellmer Textbook 19891st edition Springer-Verlag Berlin Heidelberg 1989 Exploration [打印本頁] 作者: 根深蒂固 時間: 2025-3-21 16:20
書目名稱Economic Evaluations in Exploration影響因子(影響力)
書目名稱Economic Evaluations in Exploration影響因子(影響力)學(xué)科排名
書目名稱Economic Evaluations in Exploration網(wǎng)絡(luò)公開度
書目名稱Economic Evaluations in Exploration網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Economic Evaluations in Exploration被引頻次
書目名稱Economic Evaluations in Exploration被引頻次學(xué)科排名
書目名稱Economic Evaluations in Exploration年度引用
書目名稱Economic Evaluations in Exploration年度引用學(xué)科排名
書目名稱Economic Evaluations in Exploration讀者反饋
書目名稱Economic Evaluations in Exploration讀者反饋學(xué)科排名
作者: ovation 時間: 2025-3-22 00:12 作者: N斯巴達(dá)人 時間: 2025-3-22 03:15
Conversion of Geological Data into Mining Data for Ore Deposits,has been put on the market. The geological grades will seldom correspond with the grades of the mill head ore. As a rule the ore is diluted by inclusion of wall rock and losses occur during beneficiation. These factors have to be taken into account before revenues can be calculated.作者: 加強(qiáng)防衛(wèi) 時間: 2025-3-22 06:47
Calculation of the Net Smelter Return (NSR) of a Mine,es and ores are available, i. e. iron ore, tungsten, and antimony concentrates or “yellow cake”., U.O., the end product of uranium mines. These quotations are supplied by the price lists of the weekly “Metal Bulletin” or the “Engineering and Mining Journal”. Generally these prices are quoted in “uni作者: correspondent 時間: 2025-3-22 09:47 作者: optic-nerve 時間: 2025-3-22 16:51
Comparison of Deposits,r in production or still in the preproduction stage. The best comparison is an eco nomic one. In the preliminary stage, however, when only order of magnitude para meters are available, other “semi-economic” methods of comparison are also used.作者: optic-nerve 時間: 2025-3-22 18:23 作者: 變形詞 時間: 2025-3-22 23:18 作者: NAVEN 時間: 2025-3-23 04:38 作者: 多山 時間: 2025-3-23 08:24
Brian Klinkenberg,Keith C. Clarkeions are supplied by the price lists of the weekly “Metal Bulletin” or the “Engineering and Mining Journal”. Generally these prices are quoted in “units”, with 1 unit (1 u) being 1% of the metal in the concentrate (see Chap. 1.1.4.6). From this the net smelter return of the mine can easily be derived.作者: Rankle 時間: 2025-3-23 11:26
https://doi.org/10.1007/978-3-030-47247-4 the most important conversions and conversion factors mainly related to the “imperial” system of measures common in the Anglo-American field are listed. Although many countries, such as Canada or Australia, have adopted the metric system, time and again the exploration geologist will come across non-metric units in old texts.作者: 檢查 時間: 2025-3-23 16:28 作者: 雇傭兵 時間: 2025-3-23 20:24 作者: 雜役 時間: 2025-3-23 22:10
Mohammad Ashiqur Rahman,Ehab Al-Shaer amount of ore mined. When considering the production costs, the output per unit of time must also be taken into account. The greater the output per day or per year, the lower are the costs per ton of ore. This effect is called “economics of scale”.作者: MULTI 時間: 2025-3-24 02:47 作者: 無關(guān)緊要 時間: 2025-3-24 06:29
https://doi.org/10.1007/978-3-030-88132-0For the calculation of the volume and the tonnage of ore deposits there is a variety of available methods to choose from, each suited for a particular deposit. These methods fall into two categories: reserve calculation on the basis of cross-sections and on the basis of longitudinal planar sections or level plans respectively.作者: slow-wave-sleep 時間: 2025-3-24 12:57 作者: hangdog 時間: 2025-3-24 16:24
https://doi.org/10.1007/978-94-009-1675-3Generally speaking, multi-element deposits contain more than one metal as a significant source of revenue. This applies to most non-ferrous metal deposits. Complex volcanogenic sulphide deposits often contain five components: Cu, Pb, Zn, Ag, and Au. In this case, each individual component has to be weighted separately as shown in Chapter 4.作者: ARIA 時間: 2025-3-24 22:44 作者: addict 時間: 2025-3-25 01:58 作者: 爆炸 時間: 2025-3-25 03:40
Characteristics of Proof Tasks,Now that we know how to calculate the revenues for a potential mine from the grades of a deposit to be evaluated (Chap. 7), how to determine the lifetime of a mine (Chap. 8), and how to derive capital and operating costs from the capacity (Chap. 9), we have all the data required to carry out economic calculations.作者: Subdue 時間: 2025-3-25 07:57 作者: slow-wave-sleep 時間: 2025-3-25 12:21 作者: Prognosis 時間: 2025-3-25 17:03 作者: Arable 時間: 2025-3-25 21:53 作者: 油膏 時間: 2025-3-26 01:36 作者: seroma 時間: 2025-3-26 08:19
Calculation of Cost Data,After having determined the capacity of the potential mine (Chap. 8), cost data will have to be calculated.作者: 百科全書 時間: 2025-3-26 11:12
Additional Economic Planning Methods,Before going into economic calculations two economic planning methods shall be considered which can influence the economics of an ore deposit:作者: saphenous-vein 時間: 2025-3-26 14:35
Economic Evaluations,Now that we know how to calculate the revenues for a potential mine from the grades of a deposit to be evaluated (Chap. 7), how to determine the lifetime of a mine (Chap. 8), and how to derive capital and operating costs from the capacity (Chap. 9), we have all the data required to carry out economic calculations.作者: 一起 時間: 2025-3-26 19:16 作者: apiary 時間: 2025-3-26 22:27
Equity Calculations,Equity calculations will be considered under two aspects:作者: 造反,叛亂 時間: 2025-3-27 02:00
https://doi.org/10.1007/978-3-662-02578-9Exploration Geology; Mineral Deposits; Resource Estimation; Statistics; economic geology; mineral resourc作者: Synchronism 時間: 2025-3-27 05:23
Springer-Verlag Berlin Heidelberg 1989作者: 1FAWN 時間: 2025-3-27 10:56 作者: Habituate 時間: 2025-3-27 17:25
Metal Prices,For metals (see Chap. 1.2.7) the London-based, twice-weekly “Metal Bulletin” is the standard reference. The “Engineering and Mining Journal” publishes monthly price surveys for metallic and non-metallic commodities.作者: 伙伴 時間: 2025-3-27 21:19
Conversion of Geological Data into Mining Data for Ore Deposits,has been put on the market. The geological grades will seldom correspond with the grades of the mill head ore. As a rule the ore is diluted by inclusion of wall rock and losses occur during beneficiation. These factors have to be taken into account before revenues can be calculated.作者: CORD 時間: 2025-3-27 23:12
Production Lifetime, amount of ore mined. When considering the production costs, the output per unit of time must also be taken into account. The greater the output per day or per year, the lower are the costs per ton of ore. This effect is called “economics of scale”.作者: amenity 時間: 2025-3-28 03:58
Comparison of Deposits,r in production or still in the preproduction stage. The best comparison is an eco nomic one. In the preliminary stage, however, when only order of magnitude para meters are available, other “semi-economic” methods of comparison are also used.作者: 險代理人 時間: 2025-3-28 08:46 作者: 熔巖 時間: 2025-3-28 12:20
https://doi.org/10.1007/978-3-030-47247-4 the most important conversions and conversion factors mainly related to the “imperial” system of measures common in the Anglo-American field are listed. Although many countries, such as Canada or Australia, have adopted the metric system, time and again the exploration geologist will come across no作者: 玉米棒子 時間: 2025-3-28 18:11
Alexander Kanaris,Petros Ioannou,Fu-Sheng HoFor metals (see Chap. 1.2.7) the London-based, twice-weekly “Metal Bulletin” is the standard reference. The “Engineering and Mining Journal” publishes monthly price surveys for metallic and non-metallic commodities.作者: AORTA 時間: 2025-3-28 20:12
https://doi.org/10.1007/978-3-030-11333-9has been put on the market. The geological grades will seldom correspond with the grades of the mill head ore. As a rule the ore is diluted by inclusion of wall rock and losses occur during beneficiation. These factors have to be taken into account before revenues can be calculated.作者: AORTA 時間: 2025-3-29 01:29
Brian Klinkenberg,Keith C. Clarkees and ores are available, i. e. iron ore, tungsten, and antimony concentrates or “yellow cake”., U.O., the end product of uranium mines. These quotations are supplied by the price lists of the weekly “Metal Bulletin” or the “Engineering and Mining Journal”. Generally these prices are quoted in “uni作者: MELD 時間: 2025-3-29 05:37
Mohammad Ashiqur Rahman,Ehab Al-Shaer amount of ore mined. When considering the production costs, the output per unit of time must also be taken into account. The greater the output per day or per year, the lower are the costs per ton of ore. This effect is called “economics of scale”.作者: Hiatal-Hernia 時間: 2025-3-29 08:05 作者: mortuary 時間: 2025-3-29 14:19
Textbook 19891st editions. In the early stages of exploration, however, any evaluator of deposits has to be able to cover the whole spectrum himself. Since only order of magnitude parameters are available at this stage, the calculations can only yield order of magnitude results. Precise calculations would even be misleadin作者: thrombus 時間: 2025-3-29 17:49 作者: BAIL 時間: 2025-3-29 20:31
Financial Privacy,ns. The chapter then considers the arguments, most prominently aired by Kenneth Rogoff in his book ., to eliminate large denomination physical currency. It finds that there are many other reasons apart from the desire to hold cash for criminal purposes to seek an anonymous payments system.作者: MOAN 時間: 2025-3-30 01:27
A. J. R. van Gestel PT,J?rg Steier,Helmut Teschler a loss of creativity with regard to the students’ spatial imagination that is conveniently nourished with an imaginary of references as much useful as they are necessary. The work of sculptors as much as that of architects is adequate at this learning stage to enrich the mentioned student’s imagina作者: 館長 時間: 2025-3-30 05:44
Haiko Schlink?lich noch in vorchristlicher Zeit eine Ausdehnung der bewirtschafteten Fl?che auf 40 000 km., die schlie?lich die Ern?hrung von 25 Millionen Menschen erm?glichte. Die umfangreichen Schiffahrtskan?le, Be- und Entw?sserungsanlagen, Hochwasserschutzdeiche und Flu?umleitungen wurden im Laufe der wechse作者: 步履蹣跚 時間: 2025-3-30 08:42 作者: puzzle 時間: 2025-3-30 13:32
https://doi.org/10.1007/978-3-319-56210-0G.) is ambiguous, whether L(G.) ? L(G.), and whether L(G.) = L(G.). Section 9.4 discusses methods for avoiding redundancies and other inefficiencies. Section 9.5 shows how these methods can be used to the handle ambiguities.作者: 向外供接觸 時間: 2025-3-30 16:53 作者: 四牛在彎曲 時間: 2025-3-30 22:39
