Thallium
Geochemical Symbol: Tl
Typical Detection Limit (Aqua Regia/ICP): 10 ppm
Typical Detection Limit (Neutron Activation): N/A
Detectability

Frequency distributions heavily truncated: typical data set would contain no values above detection limit

Exploration Geochemical Applications
1. As a Pathfinder

None at typical concentration levels and detection limits. Important pathfinder for gold, especially in Phanerozoic terranes, if more sensitive analytical method is used

2. As an Aid to Geological Mapping

None known

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