Sericitic alteration

Sericitic alteration or sericitization is a type of hydrothermal alteration characterized by the development of fine-grained white mica assemblages collectively referred to as sericite. In the Buchans–Roberts Arm Belt of Newfoundland, these assemblages include muscovitic illite, phengite, and paragonite associated with hydrothermal alteration zones.¹

References

Sparkes, G.W. (2022). Short wavelength infrared spectrometry studies of sericitic alteration zones, southern Buchans–Roberts Arm Belt, Newfoundland (PDF) (Current Research). Newfoundland and Labrador Department of Industry, Energy and Technology. pp. 85–118. 22-1. Archived from the original (PDF) on 2025-12-31. Retrieved 2026-05-08.

[1] Sparkes, G.W. (2022). Short wavelength infrared spectrometry studies of sericitic alteration zones, southern Buchans–Roberts Arm Belt, Newfoundland (PDF) (Current Research). Newfoundland and Labrador Department of Industry, Energy and Technology. pp. 85–118. 22-1. Archived from the original (PDF) on 2025-12-31. Retrieved 2026-05-08.

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