Marmota (ASX:MEU) said bulk leach extractable gold test work at its Aurora Tank project in South Australia resulted in a 73% increase in assay grade on average to 87 grams per tonne (g/t) grade of gold from 50 g/t grade of gold, according to a Monday Australian bourse filing.
The firm collected the entire sample bag from a depth of 32 meters to 33 meters.
It noted that three of the five samples returned assays above 90 g/t grade of gold.
The firm said it is reviewing results received to date and preparing additional work programs and additional infill and extensional drilling.
The firm's shares rose past 5% in recent trading on Monday and earlier hit their highest since May 2022.