Counties, states, countries, continents, or oceans | |
Nome | Census area |
Alaska | state |
United States | country |
North America | continent |
Land | continent |
Map quadrangles, from USGS or Canadian NTS | |
Nome D-1 | 1:63,360 Alaska quadrangle |
Nome | 1:250,000 Alaska quadrangle |
Watershed boundaries (USGS hydrologic units) | |
Nome | hydrologic unit |
190501 | hydrologic accounting unit |
South Central Alaska | hydrologic subregion |
Alaska | hydrologic region |
ID | Data type | Description |
---|---|---|
Seward Peninsula | M-D | Seward Peninsula 24944 line km with spacing 0.40 km over parts of AK |
Cady | M-D | Cady -9999 line km with spacing 0.40 km over parts of AK |
Nome 1993 | M/EM-D | Nome 1993 3856 line km with spacing 0.40 km over parts of AK |
Nome | M/R-D | Nome 346 line km with spacing 9.60 km over parts of AK |
Tract | Deposit Type | Mineralization age |
---|---|---|
AK-WC17 | Placer Au | |
AK-WC01 | Besshi massive sulfide | |
AK-WC23 | Cu (Au) skarn | |
AK-WC09 | Low-sulfide Au-quartz veins | |
AK-WC18 | Polymetallic replacement | |
AK-WC20 | Polymetallic vein | |
AK-WC25 | Zn-Pb skarn | |
AK-WC27 | Sedex Zn-Pb |
Domain | Crust type | Region |
---|---|---|
Brooks-Seward | Passive margin | Alaska |
Lab ID | Sample medium | Description |
---|---|---|
BDB489 | concentrate | panned only concentrate |
BDN029 | rock | metamorphic marble |
BDN030 | rock | metamorphic marble |
BDN031 | rock | metamorphic marble |
BDN035 | rock | metamorphic marble |
BDN037 | rock | metamorphic marble |
BDN116 | rock | metamorphic marble |
BDN117 | rock | metamorphic schist |
BET348 | concentrate | panned only concentrate |
BFE047 | concentrate | panned C1 fraction |
BFE589 | concentrate | panned C1 fraction |
BFN619 | concentrate | panned C3 fraction |
D154282 | concentrate | panned C3 fraction |
M126224 | rock | |
M126225 | rock | metamorphic marble |
MAB542 | sediment | |
MAB704 | sediment | |
MAB866 | sediment | |
MAC025 | sediment |
Sample ID | Date collected | Sample type |
---|---|---|
7024189 | 1978-07-17 | Wet stream 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 |
---|---|---|
3025859 | 1978-07-17 | Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid. |
Sample ID | Rock type | Rock name |
---|---|---|
BDN029 | metamorphic | marble |
BDN030 | metamorphic | marble |
BDN031 | metamorphic | marble |
BDN035 | metamorphic | marble |
BDN037 | metamorphic | marble |
BDN116 | metamorphic | marble |
BDN117 | metamorphic | schist |
BDN513 | metamorphic | unspecified |
M114119 | metamorphic | metamafite |
M126224 | unspecified | |
M126225 | metamorphic | marble |
Site name | Development | Commodities |
---|---|---|
Dorothy Creek | Producer | AU SB W |
Dorothy Creek | Past Producer | AU SB |
Little Gulch | Occurrence |
Site | Status | Commodities |
---|---|---|
Little Gulch | Inactive | |
Dorothy Creek | Active? | Au |
Wyoming | Probably inactive | Au? |
Sample ID | Sample source | Sample notes |
---|---|---|
MAC025 | stream/river | stream |
Sample ID | Sample source | Sample notes |
---|---|---|
BDB489 | stream/river | stream |
BET348 | ||
BFE047 | stream/river | stream |
BFE589 | stream/river | stream |
BFN619 | stream/river | stream |
D154282 | stream/river | stream |
MAB542 | stream/river | stream |
MAB704 | stream/river | stream |
MAB866 | 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 |
Chukotka | porphyry copper | Early to Late Cretaceous volcanic and intrusive rocks composing island-arc, continental-arc, and collisional magmatic belts associated with the Chukotka microcontinent. |
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. |