Propylitic alteration is the chemical alteration of a rock, caused by iron and magnesium bearing hydrothermal fluids, altering biotite or amphibole within the rock groundmass. It typically …

2023年5月9日 · Propylitic alteration is a type of hydrothermal alteration that occurs in volcanic and plutonic rocks. It is characterized by the alteration of primary minerals, such as feldspar and …

2018年1月1日 · The large footprint of propylitic alteration should present an attractive target for remotely sensed mineral exploration. However, the rocks that typify propylitic alteration zones …

the propylitic alteration has determinated the separation of the chlorite zone to the vein mineralizations rich in copper in the NW part and subordinately to the copper vein group in the …

to a series of commonly recognized alteration zones: potas-sic, argillic, phyllic, and propylitic, with distinct mineralogy and decreasing intensity of alteration developed away from the vein or …

Propylitic alteration of intrusive rocks (e.g., Sewell diorite, Teniente dacite porphyry) is typified by chlorite and epidote alteration of the ferromagnesian minerals, plus magnetite, hematite, …

2023年2月1日 · Propylitic alterations are noticeable as prominent alteration zones with mineral deposits, whereas the phyllic alterations presented the lowest possibility of mineral …

The association of epidote-chlorite-calcite ± actinolite ± albite, typically referred to as propylitic alteration (Becker 1882), is a widespread alteration assemblage on the outer margins of …

2023年9月12日 · DPCA of band 1, band 4, band 5, and band 8 was performed to highlight propylitic alteration zones depending mainly on the spectral behavior of its common minerals …

1991年2月1日 · Propylitic alteration of volcanic rock can be subdivided into actinolite, epidote, and chlorite subzones. An actinolite subzone containing actinolite, epidote, chlorite, and calcite …