Counties, states, countries, continents, or oceans | |
Yukon-Koyukuk | Census area |
Alaska | state |
United States | country |
North America | continent |
Land | continent |
Map quadrangles, from USGS or Canadian NTS | |
Medfra C-6 | 1:63,360 Alaska quadrangle |
Medfra | 1:250,000 Alaska quadrangle |
Watershed boundaries (USGS hydrologic units) | |
Upper Innoko River | hydrologic unit |
190408 | hydrologic accounting unit |
Southwest Alaska | hydrologic subregion |
Alaska | hydrologic region |
Map symbol | Lithology | Unit name |
---|---|---|
JMct | Sedimentary | Cherty tuff and breccia |
Kmvi | Igneous - Volcanic | Mafic to intermediate volcano-plutonic complexes |
Kvgc | Sedimentary | Volcanic graywacke and conglomerate |
Qs | Unconsolidated | Unconsolidated surficial deposits, undivided |
TKgd | Igneous - Plutonic | Granodiorite to quartz monzodiorite |
ID | Data type | Description |
---|---|---|
West-Central Alaska | M-D | West-Central Alaska 21360 line km with spacing 9.60 km over parts of AK |
Medfra '78 | M-D | Medfra '78 10702 line km with spacing 1.60 km over parts of AK |
Medfra | M/R-D | Medfra 2245 line km with spacing 9.60 km over parts of AK |
Tract | Deposit Type | Mineralization age |
---|---|---|
AK-WC16 | Plutonic porphyry Au | |
AK-WC22 | Polymetallic vein | |
AK-WC17 | Placer Au |
Domain | Crust type | Region |
---|---|---|
Farewell-Innoko-Idono | Continental arc | Alaska |
Lab ID | Sample medium | Description |
---|---|---|
CCS610 | rock | igneous unspecified |
CDS081 | rock | igneous felsite |
CDS082 | rock | igneous dacite porphyry |
CDS083 | rock | metamorphic hornfels |
CDS084 | rock | igneous felsite |
CDS085 | rock | metamorphic hornfels |
CDS086 | rock | igneous dacite porphyry |
CDS282 | sediment | |
CED271 | concentrate | panned C2 fraction |
Sample ID | Material | Source |
---|---|---|
C-158523 | Sediment | Pond, Natural, wet |
Sample ID | Date collected | Sample type |
---|---|---|
7015233 | 1977-08-16 | Wet natural-pond (or lake in Alaska) sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves. |
Sample ID | Date collected | Sample type |
---|---|---|
3016336 | 1977-08-16 | Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid. |
Sample ID | Rock type | Rock name |
---|---|---|
CCS610 | igneous | unspecified |
CDS081 | igneous | felsite |
CDS082 | igneous | dacite porphyry |
CDS083 | metamorphic | hornfels |
CDS084 | igneous | felsite |
CDS085 | metamorphic | hornfels |
CDS086 | igneous | dacite porphyry |
Site name | Development | Commodities |
---|---|---|
Wyoming Lode | Prospect | AU SB AS HG |
Wyoming Creek | Prospect | SB HG |
Site | Status | Commodities |
---|---|---|
Wyoming Lode | Inactive | Au;Sb |
Sample ID | Sample source | Sample notes |
---|---|---|
CED271 | stream/river | stream |
Tract name | Deposit type | Geology |
---|---|---|
Yukon-Tanana Upland | porphyry copper | Kluane Arc and Tertiary Kuskokwim Mountains volcanic-plutonic belt (continuation of Canadian Cordilleran continental arc); north of the Denali Fault |
Pacific Margin | porphyry copper | Cretaceous through middle Tertiary volcanic and intrusive rocks representing a series of continental- and island-arc systems accreted and superimposed onto the paleomargin of northeast Asia. |