| Basis for focus area |
Seal and others (2017) and MRDS producers and past producers. |
| Identified resources |
Historical production of antimony, gold, and mercury. |
| Production |
Stayton Mining District: production limited to ~500 lbs Sn metal, although none since WW II (Aune, 1966). |
| Status |
Past mining. |
| Estimated resources |
Stayton Mining District: Inferred resources of 181,000 metric tons of ore and 907,000 metric tons of ore at 3% Sb (Bailey and Myers, 1949). |
| Geologic maps |
Jennings and others (2010), scale 1:750,000. |
| Geophysical data |
Some adequate Rank 2 (75%) and inadequate Rank 3 (25%) aeromagnetic coverage and Rank 5 aeroradiometric coverage. |
| Favorable rocks and structures |
Contact between the Coast Range Ophiolite and Great Valley Sequence, Tertiary volcanic rocks. |
| Deposits |
McLaughlin mine (MRDS dep_id: 10310645), Quien Sabe mine (MRDS dep_id: 10261617), Ambrose mine (MRDS dep_id: 10110930), French Ranch (MRDS dep_id: 10077206), Shriver (MRDS dep_id: 10040873), Stayton mine (MRDS dep_id: 10106914), Stanton-Santa Clara Claim. |
| Evidence from mineral occurrences |
MRDS; Seal and others (2017). |
| Geochemical evidence |
Unknown. |
| Geophysical evidence |
Unknown. |
| Evidence from other sources |
District scale mapping and historical mining. |
| Comments |
Most recent large scale mapping is Dibblee (1975), scale 1:62,500; later compilations at a scale of 1:24,000 were done by Dibblee and Minch in 2007, but there is no newer mapping. |
| Cover thickness and description |
In the Stayton Mountain District antimony is hosted in Quien Sabe volcanics outcrops. |
| Authors |
David A. Ponce, Ben Parrish, Erica Key. |
| New data needs |
Updated geologic mapping, geochemistry, aeromagnetic and radiometric surveys. |
| Geologic mapping and modeling needs |
Updated geologic mapping for quadrangles not recently published by CGS. |
| Geophysical survey and modeling needs |
High-resolution, Rank 1 aeromagnetic and aeroradiometric surveys. |
| Digital elevation data needs |
Lidar nearly complete. |
