Definitions
from The Century Dictionary.
- Related to or characteristic of propylite.
Etymologies
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Examples
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Where chlorite is important, it is sometimes called chloritic or "propylitic" alteration.
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The wall rocks have undergone a "propylitic" alteration, with development of chlorite, epidote, and probably sericite, much as at Butte.
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The wall rocks have undergone alteration of the propylitic type.
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The mineralization encountered in the drilling has been subject to geological, petrographic and laboratory studies and has confirmed the presence of extensive pottassic and propylitic alteration of granites and porhyritic host rocks indicating that we are within a large alteration system similar to Magellan Minerals' Cuiu Cuiu project.
unknown title 2011
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Duran geologists have identified extensive zones with stockwork quartz veinlets and oxidized pyrite, which are part of a large phyllic alteration system that grades outwards to zones of argillic and propylitic alteration.
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This vein system is hosted in propylitic altered and locally silicified andesite.
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In addition to the holes reported above two holes drilled over 3.5 kilometres to the south-southwest of discovery hole LC08-29, in the Dura Verde area (DV08-01, -02), have intersected similar host lithologies, strong propylitic alteration and locally anomalous copper and lead-zinc-silver mineralization, consistent with the regional zoning pattern typically associated with large porphyry systems.
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