Arika Resources (ASX:ARI) said assay results from the recently completed diamond drilling campaign at the F1-Fault prospect at its Yundamindra gold joint venture project in Western Australia showed an extension of strong gold mineralization, according to a Tuesday Australian bourse filing.

The drilling was designed to test for depth extensions beyond the known limits of the near-surface mineralization and to provide insights into geotechnical aspects for future mining studies, the filing said.

A significant assay from the drilling included 14.8 meters at 3.1 grams-per-tonne grade of gold from 87 meters down-hole. It plans to restart drilling shortly to follow up latest results and begin testing new targets.

The project is a joint venture between Arika, which holds an 80% interest, and Nex Metals Explorations (ASX:NME), which holds a 20% interest.

Arika's shares jumped 13% in recent trading on Tuesday.