| Basis for focus area |
Heavy mineral placer localities. |
| Identified resources |
Past production of gold, PGE, titanium (ilmenite), and zirconium (zircon). |
| Production |
Shi Shi beach placer produced concentrate before 1904: 1,120 lbs ilmenite, 96 lbs Zr, along with minor Au and platinum (Huntting, 1956). |
| Status |
Past minor mining. |
| Estimated resources |
Unknown. |
| Geologic maps |
Horton and others (2017), scale 1:500,000. |
| Geophysical data |
Mostly adequate (90%) aeromagnetic coverage. Inadequate aeroradiometric coverage. |
| Favorable rocks and structures |
Heavy mineral concentrations created by wave action. |
| Deposits |
Shi Shi Beach Placer (MRDS dep_id: 1055857). |
| Evidence from mineral occurrences |
MRDS. |
| Geochemical evidence |
Reiter mine ore assays ~ 20% arsenic sulfides. Arsenopyrite was mined for Au and Ag. Other As minerals: arsenolite, tennantite, proustite, ollingite, smaltite, cholanthite, and niccolite. |
| Geophysical evidence |
Unknown. |
| Evidence from other sources |
Unknown. |
| Comments |
In Olympic National Park. |
| Cover thickness and description |
Exposed. |
| Authors |
Daniel W. Eungard. |
| New data needs |
None requested at this time; in national park. |
| Geologic mapping and modeling needs |
None requested at this time; in national park. |
| Geophysical survey and modeling needs |
None requested at this time; in national park. |
| Digital elevation data needs |
Lidar in progress. |
