| Title | Hydrothermal-Magmatic Systems as the Basic Source for Energy and Mineral Resources in Areas of Recent Volcanism |
|---|---|
| Authors | S.N. Rychagov |
| Year | 2005 |
| Conference | World Geothermal Congress |
| Keywords | Hydrothermal-magmatic systems, Volcanism, Geological-Geochemical, Geothermal, Mineral-Ore Formation, Models, Resources |
| Abstract | The purpose of this work is creating the complex geological-geochemical model of evolution of a typical long-living (beginning from thousands and up to hundreds of thousands years and even more) hydrothermal-magmatic ore-generating system of the Kuril-Kamchatka insular arch. This model is considered as the basis for development of estimation and safety use of the richest thermal, water and mineral resources of recent and ancient volcanism areas. Specific examples were used to ground existence and show formation stages of hydrothermal-magmatic ore-generating systems of the area of ocean-continent transition. The hydrothermal-magmatic system geological structure is studied and thermo-controlling zones as well as ore-controlling ones are distinguished. The structure of areas of near-surface and abyssal solution intensive mixing and water boiling as well as geochemical barrier zones is shown. Native metals and intermetal compounds formed in the most permeable tectonic structures under conditions of "dry" reductive fluid circulation are identified. New conceptual models of hydrothermal-magmatic ore-generating systems are offered. Conditions existing in the bowels of hydrothermal-magmatic systems of insular arches result into generation of large hydrothermal deposits and formation of mineralization of auriferous-polymetallic and, probably, copper-porphyric type. |