Map symbol | Lithology | Unit name |
---|---|---|
PzPxyqs | Metamorphic | Quartzite and pelitic schist |
Qs | Unconsolidated | Unconsolidated surficial deposits, undivided |
Qs | Unconsolidated | Unconsolidated surficial deposits, undivided |
ID | Data type | Description |
---|---|---|
Alaska Regional | M-Dz | Alaska Regional 14484 line km with spacing 16.10 km over parts of AK |
Northeast Alaska '73 | M-D | Northeast Alaska '73 25044 line km with spacing 1.60 km over parts of AK |
Big Delta-Fairbanks | M-Dz | Big Delta-Fairbanks 25749 line km with spacing 1.20 km over parts of AK |
Fairbanks EM West | M-D | Fairbanks EM West 5385 line km with spacing 0.40 km over parts of AK |
Fairbanks 1994 | M/EM-D | Fairbanks 1994 4325 line km with spacing 0.40 km over parts of AK |
Tract | Deposit Type | Mineralization age |
---|---|---|
AK-EC05 | Au-Sb veins | |
AK-EC07 | Low-sulfide Au-quartz veins | |
AK-EC08 | Low-sulfide Au-quartz veins | |
AK-EC13 | Porphyry Cu, BC-Ak type | |
AK-EC14 | Plutonic porphyry Au | |
AK-EC18 | Polymetallic vein | |
AK-EC15 | Placer Au |
Domain | Crust type | Region |
---|---|---|
Yukon-Tanana lower | Passive margin | Alaska |
Lab ID | Sample medium | Description |
---|---|---|
CHA585 | concentrate | panned C3 fraction |
CHA586 | concentrate | panned C3 fraction |
CHA596 | concentrate | panned C3 fraction |
CHA597 | concentrate | panned C3 fraction |
CHA598 | concentrate | panned C3 fraction |
CHB023 | mineral | |
CHB024 | mineral | |
CHB025 | mineral | |
CHB026 | mineral | |
CHB027 | mineral | |
CHB028 | mineral | |
CHB029 | mineral | |
CHB051 | mineral | |
MIN110 | concentrate | panned C3 fraction |
Sample ID | Date collected | Sample type |
---|---|---|
3034311 | 1977-07-27 | Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid. |
Site name | Development | Commodities |
---|---|---|
Creeks | Prospect | AU AS SB |
Site | Status | Commodities |
---|---|---|
Creeks | Inactive | Au |
Sample ID | Sample source | Sample notes |
---|---|---|
CHA585 | stream/river | Paxton's Straight Moose;; stream |
CHA586 | stream/river | Paxton's Straight Moose;; 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. |