Microprobe element maps showing the distribution of mercury and iron in a weathered and altered rock from an old mercury mine at Puhipuhi. Cinnabar is absent. Mercury is sparsely distributed throughout the rock absorbed on to brown iron oxides. This mercury can be released into adjacent streams during further weathering.
Related
Introduction
Overview: Geological setting for Metals in the New Zealand environment
- Epithermal Gold
- Mesothermal Gold
- Acid Rock drainage
- Coal
- Metals in groundwater
- Alluvial Gold
- Northland Mercury
-
Hot Springs (in heavy metals)
Metalloids
Heavy Metals
- Heavy metal discharge from fossil hot springs
- Mine Tailings
- Weathering and alteration