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Titlebook: Ore Deposit Geology and its Influence on Mineral Exploration; Richard Edwards,Keith Atkinson Book 1986 R. P. Edwards and K. Atkinson 1986

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樓主: ODDS
41#
發(fā)表于 2025-3-28 17:02:01 | 只看該作者
literature up to the end of 1984. However, we have visited most of the mining districts cited in the text and have also corresponded extensively with geologists to extend our knowledge beyond the published literature. Nonetheless writing a text-book on Ore Deposits is a demanding task and it is inevitable th978-94-011-8058-0978-94-011-8056-6
42#
發(fā)表于 2025-3-28 20:50:34 | 只看該作者
43#
發(fā)表于 2025-3-29 00:29:51 | 只看該作者
,Sediment-hosted Copper—Lead—Zinc deposits, considered that igneous hydrothermal solutions were of dominant importance in ore formation. Lindgren and Bateman were amongst the leading advocates of the ‘hydrothermal’ school, and in their opinion ore deposits associated with sediments were largely the products of replacement by solutions emanating from a cooling magma.
44#
發(fā)表于 2025-3-29 04:07:41 | 只看該作者
Magmatic hydrothermal deposits,vels in the earth’s crust. Fluid inclusion and isotope studies indicate that magmatically derived fluids and circulating meteoric water have played varying roles in the genesis of these hydro- thermal ore bodies. The tectonic setting, primary mineralogy and alteration characteristics are very important in guiding exploration for these deposits.
45#
發(fā)表于 2025-3-29 09:57:00 | 只看該作者
Placers and palaeo-placers, specific placer environment, which is ultimately controlled by tectonic setting. In this chapter, the main environments of placer formation are reviewed with particular emphasis on the genesis of the deposits and the appropriate exploration techniques.
46#
發(fā)表于 2025-3-29 13:23:33 | 只看該作者
47#
發(fā)表于 2025-3-29 18:47:28 | 只看該作者
48#
發(fā)表于 2025-3-29 20:34:38 | 只看該作者
Uranium ores of sedimentary affiliation,ey constitute more than 60% of World resources but also because they serve to illustrate contrasting approaches to exploration. Uranium contained in quartz—pebble conglomerates is discussed in Chapter 5.
49#
發(fā)表于 2025-3-30 02:05:44 | 只看該作者
The design and implementation of exploration programmes, project and the form the full feasibility study should take. If the feasibility studies are favourable and all factors are positive the project proceeds to development and eventually to production. The generalized sequence is illustrated in Fig. 11.1 and the component parts are elaborated upon in Table 11.1.
50#
發(fā)表于 2025-3-30 05:02:50 | 只看該作者
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