| Deposit ID | 10060994 |
|---|---|
| MRDS ID | TC32122 |
| Record type | Site |
| Current site name | Ianna Goldfield |
| Alternate or previous names | Meadow Half, Stone Hill, Sweetheart, Charles Reef Veins |
| Geographic coordinates: | -59.80266, 7.82923 (WGS84) |
|---|
Political divisions (FIPS codes)
Guyana(country)
South America(continent)
Land(continent)
| Country |
|---|
| Guyana |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Materials | Type of material |
|---|---|
| Gold | Ore |
| Quartz | Gangue |
| Result | 3 OZ/TON AU FOR 2 FT WIDTH OVER 54 FT LENGTH IN STONEHILL VEIN |
|---|---|
| Result | MEADOW HALF VEIN 0.48 TO 2.06 OZ/TON AU OVER 7 INCHES |
| Result | SWEETHEART VEIN 0.20-0.25 OZ/TON AU AVERAGE GRADE |
| Result | CHARLES REEF 0.26 OZ/TON AU OVER 48 INCHES. |
| Model code | 273 |
|---|---|
| USGS model code | 36a |
| Deposit model name | Low-sulfide Au-quartz vein |
| Mark3 model number | 27 |
| Host or associated | Associated | ||||||
|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite | ||||||
| Rock unit name | Ianna Stock | ||||||
| Rock description | Ianna Stock | ||||||
| |||||||
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Metavolcanic Rock |
| Rock unit name | Mazaruni Group;Cuyuni Formation |
| Rock description | Mazaruni Group;Cuyuni Formation |
| Host or associated | Host |
|---|---|
| Rock type | Unconsolidated Deposit > Gravel |
| (1) | -59.80266, 7.82923 |
|---|
| Strike | (1) EW, (2) NE |
|---|---|
| Dip | (1) 60S, (2) 60 SE |
| Thickness | 0.61M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Significant | No |
| Discovery year | 1898 |
| Year of first production | 1898 |
| District name | Northwest District Division |
|---|
| Type | Operator |
|---|---|
| Owner | Charles ; Messrs. B. G. Consolidated Goldfields, Ltd ); Canarc Resources ) |
| First year | 1911 |
| Last year | 1935 |
| Type | Owner |
|---|---|
| Owner | Charles ; Messrs. B. G. Consolidated Goldfields, Ltd ) |
| First year | 1911 |
| Last year | 1935 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | TC32122 |
MACDONALD, J.R., 1968, A GUIDE TO MINERAL EXPLORATION IN GUYANA: GEOLOGICAL SURVEY OF GUYANA, BULLETIN 38, P. 57.
BISHOPP, D.W., 1941, THE GEOLOGY AND GEOGRAPHY OF THE TOWAKAIMA REGION, UPPER BARAMA VALLEY, NORTHWEST DISTRICT: GEOLOGICAL SURVEY OF BRITISH GUIANA BULLETIN NO. 16, P. 28.
DAVIES, D.A.B., 1937-1938, REPORT ON GOLD AND MANGANESE DEPOSITS OF THE LOWER BARAMA RIVER, NORTHWEST DISTRICT: GEOLOGICAL SURVEY OF BRITISH GUIANA BULLETIN NO. 14, 31 P.
ANON., 1994, GUYANA: CANARC PREFORA: LATINOAMERICA, AUGUST, 1994, P.12.
CIMRI
MACDONALD (1968); DAVIES (1937-1938).
| Subject category | Comment text |
|---|---|
| Deposit | Discovery Year: 1898-1899 |
| Deposit | First Production Year: 1911 FROM LODE; 1898 FROM PLACER |
| Deposit | PLACERS AND ELUVIAL WORKINGS ON IANNA RIVER AND TRIBUTARIES AND TRIBUTARIES OF YAKISHURU CREEK OVER AND NEAR IANNA GRANITE; (1) SWEETHEART VEIN; (2) STONEHILL VEIN; STONEHILL CONSISTS OF 2 VEINS, 50 FT APART STRIKING NE-SW, DIPPING 30-60 SE. SECOND MODEL: PLACER AU-PGE (MODEL NUM 39A) |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUN-1992 | Page, Norman J. | U.S. Geological Survey | |
| Updater | 06-MAR-1995 | Page, Norman J. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.