Hydrothermal mineral deposits are accumulations of valuable minerals which formed from hot waters circulating in Earth's crust through fractures. They eventually produce metallic -rich fluids concentrated in a selected volume of rock, which become supersaturated and …

2022年8月28日 · Hydrothermal deposits generally form at mid-ocean ridges, in subduction zone, or next to plutons. In all these settings, there is a source of heat that drives fluid circulation. The exceptions are epigenetic deposits that may form in continental interiors.

2023年4月23日 · Hydrothermal deposits can be formed in a variety of geologic settings, including veins, breccias, and replacement bodies. They can also occur in a range of different host rocks, including igneous, metamorphic, and sedimentary rocks.

Hydrothermal replacement deposits are a form of hydrothermal metamorphism or metasomatism. Hydrothermal deposits are valuable mineral accumulations formed by the precipitation of dissolved metals from hot, mineral-laden water circulating through Earth's crust.

Hydrothermal mineral deposit, any concentration of metallic minerals formed by the precipitation of solids from hot mineral-laden water (hydrothermal solution). The solutions are thought to arise in most cases from the action of deeply circulating water heated by magma.

Hydrothermal deposits are of enormous significance in the extraction of many important minerals. They are essential for the production of nonferrous, rare, noble, and radioactive metals.

Hydrothermal mineral deposits are those in which hot water serves as a concentrating, transporting, and depositing agent. They are the most numerous of all classes of deposit. Hydrothermal deposits are never formed from pure water, because pure water is a poor solvent of most ore minerals.

Hydrothermal deposits refer to the accumulation of minerals in fractures and cavities resulting from the circulation of hot waters in the Earth's crust. Magma releases hot fluids (water and gases) as it cools but can also heat circulating groundwater.

2024年11月14日 · Heated meteoric water can circulate through the crust, dissolving metals and forming ore deposits. Oceanic Water: Similar to meteoric water, ocean water can percolate through the ocean floor, later heated by interaction with magma chambers.

2011年1月1日 · Hydrothermal deposits are diverse, being present in a wide range of geological settings and tectonic environments: some are closely associated with granitic intrusions, others form on the ocean floor and still others are in sedimentary basins.