What are the stages of mineral exploration?
The usual stages are grassroots prospecting, target definition, drilling, resource estimation, economic studies, permitting and, if everything works, development. Each stage reduces uncertainty and usually costs more than the last. Basin Gulch already has historical drilling, and Lannister Mining's next stated goal is confirmation and expansion drilling toward a maiden mineral resource estimate.
What is mineral exploration drilling?
Mineral exploration drilling cuts holes into rock to collect samples from below the surface, so geologists can measure grade and map mineralization in three dimensions. Common methods are reverse circulation, which returns rock chips, and diamond core, which returns solid cylinders of rock. Basin Gulch has more than 320 historical drill holes, according to Lannister Mining.
How do you read a drill result like 1.8 g/t Au over 162 meters?
Read it as an average grade over a length: here, 1.8 grams of gold per tonne of rock across 162 meters of the hole. Multiplying grade by length gives a rough grade-thickness figure, about 291.6 gram-meters in this case. This Basin Gulch intercept, listed by Lannister Mining, starts at surface, which is why it draws attention.
What does g/t mean in gold exploration?
g/t means grams per tonne, the standard unit for gold and silver grades. One gram per tonne equals one part per million by weight. Basin Gulch drill highlights published by Lannister Mining range from 0.66 g/t gold over 326 meters to 156 g/t gold over 3 meters, which shows why length matters as much as grade.
What is trenching in mineral exploration?
Trenching means digging a shallow excavation across exposed or near-surface rock and sampling it continuously. It is cheaper than drilling and shows surface geology clearly. Lannister Mining lists trench highlights at Basin Gulch, such as 4 g/t gold and 23 g/t silver over 146 meters, as part of the historical work on the property.
What is a maiden mineral resource estimate?
A maiden mineral resource estimate is the first formal estimate of the tonnes and grade in a deposit, prepared under a reporting standard such as Canada's NI 43-101 or the SEC's S-K 1300. Lannister Mining states that historical drilling and new work programs at Basin Gulch will be used in a future maiden mineral resource estimate.
What are NI 43-101 and S-K 1300?
NI 43-101 is the Canadian rule for public disclosure of mineral project information, and S-K 1300 is the US Securities and Exchange Commission's rule for mining property disclosure. Both rely on qualified persons. Lannister Mining's investor page states there is a clear market premium for S-K 1300 and NI 43-101 compliant gold and silver ounces in the USA.