標(biāo)題: Titlebook: Gold Metallogeny and Exploration; R. P. Foster (Senior Lecturer in Economic Geology) Book 1993 Springer Science+Business Media Dordrecht 1 [打印本頁] 作者: MASS 時間: 2025-3-21 17:07
書目名稱Gold Metallogeny and Exploration影響因子(影響力)
書目名稱Gold Metallogeny and Exploration影響因子(影響力)學(xué)科排名
書目名稱Gold Metallogeny and Exploration網(wǎng)絡(luò)公開度
書目名稱Gold Metallogeny and Exploration網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Gold Metallogeny and Exploration被引頻次
書目名稱Gold Metallogeny and Exploration被引頻次學(xué)科排名
書目名稱Gold Metallogeny and Exploration年度引用
書目名稱Gold Metallogeny and Exploration年度引用學(xué)科排名
書目名稱Gold Metallogeny and Exploration讀者反饋
書目名稱Gold Metallogeny and Exploration讀者反饋學(xué)科排名
作者: CLOWN 時間: 2025-3-22 00:02 作者: 性上癮 時間: 2025-3-22 03:31
https://doi.org/10.1007/978-90-313-9253-7r, an indication is obtained of the lithology and mineralizing processes, factors which are especially useful in terrains where outcrop is poor. However, problems specific to explorations in till-covered areas are considered by Coker and Shills in Chapter 11.作者: BRINK 時間: 2025-3-22 07:20 作者: Individual 時間: 2025-3-22 09:00 作者: 有花 時間: 2025-3-22 13:10 作者: 有花 時間: 2025-3-22 20:49 作者: 敘述 時間: 2025-3-22 23:07
ration, ranging from the chemical distribution of gold in the Earth‘s crust, and the hydrothermal chemistry of gold, to Archaean and Phanerozoic lode deposits, epithermal environments, chemical sediments, and placer deposits, and culminates in chapters devoted to geochemical and geophysical exploration, and t978-0-412-56960-9978-94-011-2128-6作者: Minuet 時間: 2025-3-23 03:31
R. P. Foster (Senior Lecturer in Economic Geology)作者: 紅腫 時間: 2025-3-23 08:38 作者: subacute 時間: 2025-3-23 13:43 作者: FLEET 時間: 2025-3-23 16:58 作者: 運動吧 時間: 2025-3-23 18:44
Economics of gold deposits,and, then, mining, recovering and selling gold from them. Thus, economic deposits are the focal point of the gold-supply process. The economic characteristics of gold deposits are shaped by their geological features. Gold deposits are initially unknown and, once discovered, are fixed in size and highly variable in quality.作者: 突變 時間: 2025-3-24 00:58 作者: Harridan 時間: 2025-3-24 06:07 作者: 入會 時間: 2025-3-24 09:51 作者: ordain 時間: 2025-3-24 13:22 作者: 相同 時間: 2025-3-24 16:39
https://doi.org/10.1007/978-1-349-07701-4s crust. The choice of such a broad definition reflects (a) the wide use of the term `‘epithermal’ in contemporary mineral exploration and (b) the recognition that active geothermal systems in volcanic terranes are the present day . of the epithermal systems responsible for ore formation in the geol作者: 付出 時間: 2025-3-24 21:52
Long-Throated Flumes and Broad-Crested Weirsosits (Figure 6.1). Here the spectrum is subdivided into: (a) intrusion-hosted stockwork/disseminated deposits of both porphyry and non-porphyry types, the former possessing all the essential geological attributes (especially multidirectional stock-works) of typical porphyry copper and/or molybdenum作者: 擔(dān)憂 時間: 2025-3-25 01:31
G. L. Larson,R. Collier,M. W. Buktenicahe Newmont Mining Company to seek precious-metal properties amenable to low-cost mining (Ramsey, 1973). Following concepts proposed on the relationship of gold and silver mineralization to windows through the Palaeozoic Roberts Mountains thrust fault in north-central Nevada (Roberts, 1960), Newmont 作者: 爭吵加 時間: 2025-3-25 06:35
https://doi.org/10.1007/978-3-642-01774-2tions, mixed chemical and clastic sediments, tuffaceous exhalites, and disseminated or massive sulphides in both volcanic-and sediment-dominated sequences. Gold-bearing iron formations and interflow metalliferous sediments associated with seafloor hydrothermal activity also have been implicated as p作者: 代理人 時間: 2025-3-25 10:36
Long-term effects of Learning English, they present economically attractive exploration targets. Individual ancient placer deposits like the Steyn/Basal placer in the Welkom goldfield of South Africa have produced in excess of 4500 t (metric tons) of gold from heavy mineral concentrates distributed over a palaeosurface area of 170 km. 作者: labyrinth 時間: 2025-3-25 14:57
https://doi.org/10.1007/978-90-313-9253-7atures of which must be identified in the various sampling media (rock, soil, etc.) used for exploration. The geochemical signature of gold mineralization depends upon several parameters, particularly the style of mineralization in question and the physico-chemical characteristics of the supergene e作者: averse 時間: 2025-3-25 17:11 作者: irritation 時間: 2025-3-25 21:51
Inflammation: The Fire of Frailty?,l prospecting. In the 1950s and 1960s, direct detection methods (chiefly airborne and ground electromagnetics (EM)) were applied widely in the search for massive sulphide-hosted base-metal deposits (Paterson, 1967). At the same time, induced-polarization (IP) methods were developed for the direct de作者: 名字的誤用 時間: 2025-3-26 00:43 作者: 攀登 時間: 2025-3-26 07:45
,Distribution of gold in the Earth’s crust,arge masses of rock through fluid—rock reactions in the deep crust (Kerrich, 1983; Groves and Phillips, 1987; Colvine ., 1988) while others stress the importance of relatively restricted petrogenetic groups of rocks termed source rocks that concentrate gold above the norm (Viljoen ., 1970; Keays, 19作者: 輕信 時間: 2025-3-26 11:53
The hydrothermal geochemistry of gold,e Earth’s crust. Deposition of elemental gold and gold-containing minerals occurs in response to changes in the chemical and physical environment through which the hydrothermal ore fluid is migrating. For example, a buoyantly ascending hydrothermal fluid may encounter a permeable zone which induces 作者: FIS 時間: 2025-3-26 12:49
Archaean lode gold deposits,situated in most major cratonic areas (e.g. Australia, Brazil, Canada, India, South Africa, Zimbabwe: Foster, 1984; Macdonald, 1986; Ho and Groves, 1987). Even relatively small cratons typically contain some Archaean gold deposits (e.g. Tanzania; van Straaten, 1984), and the Archaean belts of China 作者: Rotator-Cuff 時間: 2025-3-26 20:09
Phanerozoic gold deposits in tectonically active continental margins,the deposits of the Witwatersrand are excluded (data from Woodall, 1988). With the anticipated increase in production from newly discovered gold deposits of the southern Pacific and western US, this percentage should increase substantially in the coming years. Consequently, the understanding of and 作者: deface 時間: 2025-3-26 21:36 作者: Grasping 時間: 2025-3-27 04:09
Intrusion-related gold deposits,osits (Figure 6.1). Here the spectrum is subdivided into: (a) intrusion-hosted stockwork/disseminated deposits of both porphyry and non-porphyry types, the former possessing all the essential geological attributes (especially multidirectional stock-works) of typical porphyry copper and/or molybdenum作者: 存心 時間: 2025-3-27 09:19 作者: analogous 時間: 2025-3-27 11:35 作者: 旁觀者 時間: 2025-3-27 16:44 作者: outset 時間: 2025-3-27 18:01 作者: 短程旅游 時間: 2025-3-28 00:14
Geochemical exploration for gold in glaciated terrain,allochthonous in relation to the bedrock they overlie. In the context of almost totally glaciated landscapes, which includes most of North America north of 40°N, Greenland and Iceland, most of Europe north of 50°N, extensive parts of Asia north of 60°N, parts of South America, and Antarctica, the se作者: 圣歌 時間: 2025-3-28 03:43 作者: 序曲 時間: 2025-3-28 06:51 作者: DOSE 時間: 2025-3-28 12:05 作者: creatine-kinase 時間: 2025-3-28 15:44 作者: 注入 時間: 2025-3-28 21:02 作者: deviate 時間: 2025-3-28 23:10
John S. Eaton,Mark J. Mcdonnellits of the southern Pacific and western US, this percentage should increase substantially in the coming years. Consequently, the understanding of and exploration for gold deposits in Phanerozoic terranes merit a substantial effort from both the research and industrial communities.作者: 小平面 時間: 2025-3-29 03:52 作者: 惡臭 時間: 2025-3-29 11:09
EM Assessment for Power Grid Networkscontain major gold deposits, although they are most likely of Mesozoic, not Archaean, age (e.g. Sang and Ho, 1987). Only the major cratons of Finland and the USSR (e.g. Baltic, Ukrainian and Siberian Shields) are virtually devoid of significant Archaean gold mineralization.作者: somnambulism 時間: 2025-3-29 11:27
Long-term effects of Learning English(Minter ., 1986). This amounts to about 26 t of gold/km.. Another important deposit, the Vaal placer, which lies in the adjacent Klerksdorp goldfield, extracts about 32 t of gold/km.. Production figures from the well-known Witwatersrand Supergroup placers illustrate their productivity relative to other types of gold deposits (Figure 9.1).作者: AVANT 時間: 2025-3-29 18:58
Archaean lode gold deposits,contain major gold deposits, although they are most likely of Mesozoic, not Archaean, age (e.g. Sang and Ho, 1987). Only the major cratons of Finland and the USSR (e.g. Baltic, Ukrainian and Siberian Shields) are virtually devoid of significant Archaean gold mineralization.作者: 離開 時間: 2025-3-29 23:28
Ancient placer gold deposits,(Minter ., 1986). This amounts to about 26 t of gold/km.. Another important deposit, the Vaal placer, which lies in the adjacent Klerksdorp goldfield, extracts about 32 t of gold/km.. Production figures from the well-known Witwatersrand Supergroup placers illustrate their productivity relative to other types of gold deposits (Figure 9.1).作者: SHRIK 時間: 2025-3-29 23:55
Long-Throated Flumes and Broad-Crested Weirswallrocks; (d) wallrock-hosted breccia pipes; and (e) veins in both intrusions and wallrocks. This spectrum of deposits is transitional upwards to the volcanic-hosted, epithermal gold environment, which is mentioned only briefly in this chapter but discussed at length by Henley (this volume).作者: 消息靈通 時間: 2025-3-30 04:45
G. L. Larson,R. Collier,M. W. Buktenica62. Because of both the exploration and research attention paid to the Carlin Mine in the years following its discovery, deposits with similar mineralogy, host rocks, and trace elements to Carlin have become known as ‘Carlin-type deposits’ (Figure 7.1).作者: hallow 時間: 2025-3-30 08:40 作者: languor 時間: 2025-3-30 12:49
