Riley Gold Corp. (TSXV: RLYG) (OTCQB: RLYGF) has newly identified high priority geophysical targets resulting from its ongoing exploration programmes at its Tokop Gold Project, located in Esmeralda County, Nevada.
Tokop’s land package includes more than 21 sq. km within Nevada’s prolific Walker Lane Trend.
As a result of Riley Gold’s cumulative exploration efforts to date, Tokop is now being interpreted to have two styles of mineralisation within the project land package. Reference is being made to Tokop North and Tokop South within the global Tokop project as the mineralising systems tend to dominate by area: the reduced intrusive-related gold (RIRG)/Orogenic system is better seen in the Tokop North area while the low sulpidation, epithermal system (akin to the Bullfrog Mine) is more prevalent in exposures in Tokop South.
“The goal of utilising geophysics, along with other exploration tools such as rock sampling, soil sampling, and structural mapping is to layer additional information in order to target and identify the best drill hole locations for success,” CEO, Todd Hilditch, said.
“We have only been working on Tokop for a little over a year and have made considerable progress in understanding previous work and augmenting that information with our own exploration in preparing a geological model for discovery of a gold deposit.
“This includes the epithermal mineralisation in the southern portion of the project (Tokop South) which was recently identified as a secondary style of mineralisation and augments the intrusive related main Tokop area (Tokop North).
“Our collective work completed last year has culminated into several high priority drill targets that we are excited about and are advancing towards being drill ready,” Mr Hilditch, said.
Geophysics
Ground magnetics and gravity surveys were conducted by Magee Geophysical of Reno, Nevada, during the fall of 2021 at Tokop. Raw data was provided to Jim Wright of Wright Geophysical in Spring Creek, Nevada, for interpretation and assistance in targeting future drilling.
Preliminary interpretation suggests several targets that coincide with recent mapping and surface sampling. The data are simultaneously being added to ongoing modelling that includes drilling, surface mapping, as well as rock and soil sample data.
Magnetic lines were run NE – SW every 200 m. Several anomalies of interest have confirmed previously identified prospects which are now at the drill-ready stage of exploration. These anomalies primarily represent alteration via magnetite destruction as well as potential carbonate skarn targets in Precambrian carbonate units (Wyman Formation and Reed Dolomite). Additionally, the survey indicates a deeper intermediate intrusive potentially related to the RIRG mineralising event.
The gravity survey was conducted on a 200-m grid. Gravity data revealed the potential for very prospective drill targets that appear relatively shallow in the newly defined target areas. For example, drill targets are indicated near strong gravity gradients and relatively large areas of low density, possibly altered rocks. Gravity has also aided in understanding depth to bedrock under pediment cover in areas which mineralisation is predominantly concealed.
The current interpretation of the ground magnetic dataset comes after an initial round of prospect-scale and regional-scale mapping at Tokop. The Riley Gold team has found that subdued magnetic highs are primarily associated with granitoids of the Sylvania Pluton but are also associated with the shaley-carbonate Wyman Formation.
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