Broulan Reef Gold Project
Red Lake Gold Camp Overview
McKenzie Island Gold Project
Twenty-One Silver-Gold Project, Nevada
Gunman Zinc Project, Nevada
South Voisey's Bay Nickel Project, Labrador
 |
|
  |
The Twenty-One Claims Project is located in Mineral County, approximately 100 miles southeast of Carson City, Nevada. The property sits 3 miles south of the pavement of US Highway 95. Access to the property is by dirt track roads. The Twenty-One project consists of two blocks of lode claims centred on an area of outcropping. High voltage power lines run along highway 95 providing excellent infrastructure to the project area.
Recent chip sampling of exposed quartz breccia veins has returned assay values from 211 g/t (6.5 ounces) silver to 1141 g/t (34.5 ounces) silver and up to 2 g/t gold. The vein breccias occur within a parallel series of east-northeast trending faults which cut a 1312 feet X 1640 feet zone of altered, hydrothermal, quartz matrix breccia. High lead, arsenic, zinc, bismuth and tellurium values accompany the sampled mineralization. Andesitic and rhyolite sills, plugs, and dikes occur on the Twenty-One property. The mid-Miocene age intrusive activity in this district is considered to be highly favorable for the existence of both epithermal precious metal veins and related mineralization within carbonate wall rocks.
Age dating of these intrusive rocks in the immediate area shows 17 to 19 million years before present timing, mid Miocene. This mid Miocene age intrusive activity is considered to be highly favorable for the existence of both epithermal precious metal veins and related mineralization within carbonate wall rocks due to the presence of other districts in the region of that age. The alignment of major Miocene age gold and silver deposits along the northeast trending zone is dramatic and strongly suggests a robust structural link between the deposits.
Similar settings occur at other mining districts in the region. These districts include Tonapah, Paradise Peak and Santa Fe, which have a combined production of approximately 4 million ounces of gold and 500 million ounces of silver.
The high-grade mineralization, alteration and host rock units on the Twenty-One Silver-Gold property are very similar to those found at the Santa Fe gold-silver deposit located 10 miles along a regional scale, mid Miocene age mineral trend to the north-northeast. The Santa Fe mine was mined by Corona and Homestake and produced approximately 450,000 ounces of gold and 700,000 ounces of silver from 10 million tons of near surface oxide ore in the late 1980's and early 1990's. A sulfide phase precious metal reserve remains in the Santa Fe Mine below the level of oxide ore mined.
The exploration target at the Twenty-One Silver-Gold project is 10 to 40 million tons near surface silver-gold and base metal mineralization hosted in Triassic age limestones, quartz veins hydrothermal breccias. The project exploration target is robustly supported by reconnaissance exploration results of the property to date. Additionally, district scale mapping of the area in 1985 by the Nevada Bureau of Mines indicates that limestone units occur at shallow depth beneath both the high grade Ag-Au veined breccia zone and at shallow depths in the pediment area where the jasperiod boulders and high-grade vein breccia float have been found.
The documented occurrence of the reactive limestone beneath the bonanza grade veins and breccia cap, together with the occurrence of mineralized, silica replacement of limestone (jasperiod) strongly suggests that large-scale, limestone hosted precious and base metal mineralization occurs at shallow depth on the property.
|
Twenty-One Silver-Gold Breccia Cap
Click to Enlarge  |
Twenty-One Silver-Gold Mineralized Jasperoid
Click to Enlarge  |
Cypress Development continues to assess all available pertinent data and will conduct a detailed mapping and sampling program with the results leading to the establishment of a reverse circulation drill program in April to May 2010. The assay and mapping results to date are in themselves more than sufficient to warrant detailed exploration and drilling of the Twenty-One property.
Copyright © 2008 Cypress Development Corp. All Rights Reserved.