Source: Streetwise Reports 11/06/2018
A gold explorer in Nevada is using a novel technology to find gold.
Can water help explorers find gold? That’s the path that Nevada Exploration Inc. (NGE:TSX.V) is taking in Nevada.
Geophysics (such as airborne surveys) and trench sampling can help track gold in places where there isn’t any groundcover, but what about valleys that are covered and offer no exposure to the rock surface? According to Nevada Exploration, over 50% of Nevada is covered by sand and gravel in the valleys.
Wade Hodges, CEO of Nevada Exploration, has built a model of groundwater geochemistry as a gold exploration tool. That began with a U.S. Geological Survey geologist using groundwater samples to see if the closer the water was to mineral deposits, the higher the indicator minerals in the water would be, and the geologist did find a correlation.
Hodges and his team followed up by collecting data on 50,000 groundwater samples that were tested by Nevada municipalities and other agencies. While these samples were not assayed for gold, they were tested for the toxic metals, which are pathfinders for gold deposits. With this information, Hodges had a map of areas where the groundwater was high in gold and pathfinding metals.
They then collected 6,000 more water samples and assayed them for gold and indicator minerals, completing, according to the company, the world’s largest groundwater program for gold.
Using this information, Nevada Exploration homed in on areas with high gold and groundwater anomalies, resulting in three main targets in Nevada’s Battle Mountain-Eureka Trend in its search for large, Carlin-type gold deposits, as well as additional targets for staking:
The Kelly Creek project, in the Kelly Creek Basin, is surrounded by several deposits that contain over 70 million ounces of gold.
South Grass Valley, located around 50 km south-southwest of Barrick Gold’s Cortez complex, a large and low cost group of gold mines estimated to contain 50 Moz of gold.
Grass Valley, located on the western edge of the Grass Valley, about 10 km south of the Cortez complex.
In mid-October, Nevada Exploration provided an exploration update at the South Grass Valley project. According to the company, “geophysical datasets combined with early information from its drilling program have provided additional confirmation for the company’s geologic model at the project, including the presence of shallow, intensely altered, ‘lower-plate,’ carbonate bedrock.”
Wade Hodges explained, “If there is a large Carlin-Type Gold Deposit (CTGD) at South Grass Valley, we would expect to see multiple, independent lines of evidence for the presence of these critical components. If we’re as close as we think we could be with our target at South Grass Valley, the surrounding country rocks should also contain the right types of rocks and alteration, which they do; likewise, if there is indeed the required major structural zone to have sourced mineralized hydrothermal fluids, we should see a suggestion of it in the geophysics, which we do; and …read more
Source:: The Gold Report