| Deposit ID | 10001472 |
|---|---|
| MRDS ID | A012221 |
| Record type | Site |
| Current site name | Hope Creek |
| Related records | 10257444 |
| Geographic coordinates: | -146.35685, 65.39971 (WGS84) |
|---|---|
| Relative position | SEE LOCATION COMMENTS |
Political divisions (FIPS codes)
Fairbanks North Star(Borough)
Alaska(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Circle B-5(quadrangle 1:63,360 scale)
Circle SW(quadrangle 1:100,000 scale)
Circle(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Alaska(hydrologic region)
| Country | State |
|---|---|
| United States | Alaska |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Materials | Type of material |
|---|---|
| Gold | Ore |
| (1) | -146.35685, 65.39971 |
|---|
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Fairbanks |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | A012221 | |
| USGS | Alaska Resource Data File | ARDF | CI026 | |
| USGS | Mineral Resources Data System | MRDS | D002674 |
Brooks, A. H., 1907, The Circle precinct, Alaska: U.S. Geological Survey Bulletin 314, p. 187-204.
Prindle, L. M., 1908, The Fairbanks and Rampart quadrangles, Yukon-Tanana region, Alaska, with a section on the Rampart placers, by F.L. Hess, and a paper on the water supply of the Fairbanks region, by C.C. Covert: U.S. Geological Survey Bulletin 337, 102 p.
Prindle, L. M. and Katz, F. J., 1913, Geology of the Fairbanks district , in A geologic reconnaissance of the Fairbanks quadrangle, Alaska [Prindle, L.M., 1913]: U.S. Geological Survey Bulletin 525, 220 p.
Wedow, Helmuth, Jr., White, M. G., and Moxham, R. M., 1952, Interim report on an appraisal of the uranium possibilities of Alaska: U.S. Geological Survey Open-File Report 52-165, 123 p.
Cobb, E. H., 1972, Metallic mineral resources map of the Circle quadrangle, Alaska: U.S. Geological Survey Misc. Field Studies Map 391, 1 sheet, scale 1:250,000.
Cobb, E. H., 1973, Placer deposits of Alaska: U.S. Geological Survey Bulletin 1374, 213 p.
Cobb, E. H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Circle quadrangle, Alaska: U. S. Geological Survey Open-File Report 76-633, 72 p.
Menzie, W. D., Foster, H. L., Tripp, R.B., and Yeend, W. E., 1983, Mineral resource assessment of the Circle quadrangle, Alaska: U.S. Geological Survey Open-File Report 83-170-B, 61 p., 1 sheet, 1:250,000.
Swainbank, R.C., and Burton, P. J., 1987, Mineral assessment of the Lime Peak-Mt. Prindle area, Alaska in Smith, T. E., Pessel, G. H., Wiltse, M. A., eds., Mineral assessment of the Lime Peak-Mt. Prindle area, Alaska, p. 2.27-2.41.
Lampright, R. L., 1996, Gold placer deposits near Fairbanks Alaska: Iron Fire Publications, Nederland, Colorado, 135 p.
BAG-OFR-83-170B-62
Wedow, Helmuth, Jr., White, M.G., and Moxham, R.M., 1952, Interim report on an appraisal of the uranium possibilities of Alaska: U.S. Geological Survey Open-File Report 52-165, 124 p.
| Subject category | Comment text |
|---|---|
| Deposit | BEDROCK EXPOSURE IS RARE IN THE HOPE CREEK AREA, EXCEPT ON RIDGETOPS, AND LOCALLY ALONG CREEKS. MICACEOUS QUARTZITE, TYPICALLY WEATHERING TO MASSIVE SLABS AND BLOCKS, IS THE MOST ABUNDANT RUBBLE AND FORMS MOST OF THE BEDROCK OUTCROPS. WHITE, SULFIDE-FREE, QUARTZ LENSES, SEGREGATIONS AND VEINLETS ARE COMMON IN THE QUARTZITE. QUARTZ-MICA SCHIST AND PELITIC SCHIST ALSO FORM SOME OUTCROPS. NONFOLIATED HORNBLENDE QUARTZ MONZONITE OCCURS AS SMALL BODIES IN HOPE CREEK DRAINAGE. THE ROCK VARIES IN COMPOSITION BETWEEN QUARTZ MONZONITE AND MONZOGRANITE. HORNBLENDE QUARTZ MONZONITE IS COMMONLY ALTERED TO CHLORITE-ANKERITE-SERICITE WITH OR WITHOUT PYRITE. FLUORITE AND GARNET ARE OCCASIONALLY PRESENT. ALTERATION OCCURS BOTH ALONG PLUTONIC CONTACTS AND ALONG SHEAR ZONES WITHIN THE PLUTONS. NUMEROUS COBBLES AND BOULDERS OF SULFIDE-BEARING HORNFELS OCCUR IN HOPE CREEK. SAMPLES OF SULFIDE-BEARING HORNFELS AND QUARTZ-MONZONITE NORTH OF HOPE CREEK ARE STRONGLY ANOMALOUS IN AS (UP TO 7,000 PPM) |
| Deposit | AND AU (UP TO 550 PPB) AND MODERATELY ANOMALOUS IN SB (UP TO 120 PPB). SULFIDE-BEARING HORNFELS AND QUARTZ MONZONITE SAMPLES FROM SOUTH OF HOPE CREEK ARE ALSO ANOMALOUS IN THESE ELEMENTS WITH MAXIMUM VALUES OF 53 PPM AS, 43 PPB AU, AND 29 PPB SB. VIRTUALLY NO MINERALIZATION WAS OBSERVED IN METAMORPHIC ROCKS AWAY FROM PLUTONIC CONTACTS. IN SUMMARY, SULFIDE-BEARING HORNFELS AND ALTERED QUARTZ MONZONITE SAMPLES NEAR HORNBLENDE QUARTZ MONZONITE CONTACTS ARE THE MOST GOLD-RICH ROCKS FOUND IN THE HOPE CREEK DRAINAGE. (SWAINBANK AND BURTON, 1987, P. 6-19 TO 6-22) PLACER GOLD WAS FOUND IN STREAM GRAVEL, APPARENTLY IN SUBECONOMIC AMOUNTS. STIBNITE DEPOSITS WERE REPORTEDLY FOUND IN 1926, BUT WERE APPARENTLY REBURIED BY 1942 (JOESTING, 1943, P. 12). |
| Deposit | SEE ALSO FAITH CREEK, ARDF NO. CI018; USGS OFR 83-170-B, LOC. 62 |
| Deposit | THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUN-1986 | Leonard, Kenneth R. (Elliott, R. L.) | U.S. Geological Survey | |
| Updater | 01-SEP-1998 | C.J. Freeman, J.R. Guidetti Schaefer, A.S. Clements | Avalon Development Corporation |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.