Riverstone Resources has uncovered a new gold zone in its recent surface mapping and sampling program at a Burkina Faso site.
The samples at the Bouboulou Exploration Permit were collected inside an anomaly defined by a drilling program conducted in the 1990s.
Riverstone's rock sampling confirms and better defines the anomaly, which extends to 13 kilometres in length and between two and six kilometres in width.
The samples were collected from quartz veins and mineralised wallrock, and examples of the results include a grade of 19.16 grams per tonne and 8.46 grams per tonne.
"Work to date on this permit by the Company indicates that intersecting shear structures may provide favourable sites for gold mineralization," a spokesman said.
"In addition, several distinct zones of more intense quartz veining have been shown to be gold bearing ... This may indicate that higher-grade gold zones exist within the large gold anomaly outlined by the RAB drilling."
Earlier this month Riverstone announced the discovery of a new gold zone on the Kao property, also in Burkina Faso.