Silicification

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Silicification

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Silicification:
A process in which the original minerals of a rock become replaced by silicate minerals, this process is caused by the flow of aqueous silica solution through the rocks pore space and over its surface
Other definitions:Wikipedia Reegle


A volcanic breccia with strong silicification and moderate argillic alteration. http://www.cazagold.com/projects/nicaragua/los_andes/

Silicification refers to the addition of silica to a rock by a hydrothermal fluid. Silicification is often visually non-distinct, but results in hardening of the rock that is readily detectable using a scratcher tool.

Examples

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CSV
Geothermal
Resource
Area
Geothermal
Region
Control
Structure
Host
Rock
Age
Host
Rock
Lithology
Mean
Capacity
Mean
Reservoir
Temp
Blue Mountain Geothermal Area Northwest Basin and Range Geothermal Region Intrusion Margins and Associated Fractures
Fault Intersection
Triassic Metasedimentary 49.5 MW49,500 kW
49,500,000 W
49,500,000,000 mW
0.0495 GW
4.95e-5 TW
470.15 K197 °C
386.6 °F
846.27 °R
Salt Wells Geothermal Area Northwest Basin and Range Geothermal Region 23.6 MW23,600 kW
23,600,000 W
23,600,000,000 mW
0.0236 GW
2.36e-5 TW
466.15 K193 °C
379.4 °F
839.07 °R
Sumatra-Sibayak Geothermal Area Sunda Volcanic Arc - Great Sumatra Fault Zone Fault Intersection Tertiary Sandstone; Limestone 12 MW12,000 kW
12,000,000 W
12,000,000,000 mW
0.012 GW
1.2e-5 TW
543.15 K270 °C
518 °F
977.67 °R