The purpose of this publication is to make an extended price history for a wide range of metals available in a single document. Such information can be useful for the analysis of mineralcommodity issues, as well as for other purposes. The chapter for each mineral commodity includes a graph of annual current and constant dollar prices for 1959 through 1998, where available; a list of significant events that affected prices; a brief discussion of the metal and its history; and one or more tables that list current dollar prices.

Post-Collisional Magmatism and Its Relationship to Late-Variscan Ore Forming Processes in the Erzgebirge (Bohemian Massif)

Постколлизионный магматизм и его связь с поздневарисканскими рудообразующими процессами в Эрцгебирге (Богемский массив)

The main goal of this contribution is to document the possible importance of post-collisional lamprophyre intrusions for late-Variscan ore mineralization in the Erzgebirge (Germany and Czech Republic). Located at the northwestern border of the Bohemian massif in the Internal Variscides, the Erzgebirge is one of the most important silver, tin, tungsten, uranium, lead, zinc, copper, indium, bismuth, cobalt, and fluorite ore deposit provinces in Europe with a mining history of more than 800 years. Because of the close spatial association between late-Variscan ore mineralization and Permo-Carboniferous lamprophyric and rhyolitic intrusions the Erzgebirge is one of the key localities to study the genetic relationship of epigenetic Sn-W-Mo, Ag-base metal, and U deposits with post-collisional, mantle derived magmatic pulses.

The Kibara belt is an intracontinental mobile belt formed between 1400 and 900 Ma within a craton of Lower Proterozoic age. The belt's evolution started by early rifting at about 1400 Ma, and continued by transition into a marine basin filled by clastic sediments > 10 km thick, with minor basic and acidic volcanic rocks. At about 1300 Ma, the pile was deformed by thrusting and folding of the main Kibaran Orogeny and intruded by numerous large syn-orogenic granite bodies.

A general metallogenic analysis and metallogenic zoning of the Altai-Sayan orogenic area (ASOA) were carried out in terms of the modern plate tectonics and mantle geodynamics concepts. The Altai-Sayan folded area is an example of a polyaccretionary orogenic system that resulted from the long evolution of the Paleoasian ocean. The main metallogenic belts have been recognized, in which typical ore associations (model types of mineral deposits) and their ages and geodynamic settings of formation have been established. A total of 48 metallogenic belts including 450 mineral deposits of 70 model types were studied.