Golden Rim Resources (ASX: GMR) has announced a highly encouraging update from the ongoing major exploration campaign at its Kouri Gold Project in Burkina Faso, West Africa.
The company reported that assays were obtained for an additional 289 rock chip samples collected from the Margou and Gouéli permits.
GMR said that high-grade gold results continue to cluster at the Kogodou Prospect, which extends directly east of the 1.4Moz gold Mineral Resource for over 3.8km.
The best new results at the Kogodou Prospect include 32.3g/t gold, 29.2g/t gold, 22.4g/t gold, 14.5g/t gold, and 11.7g/t gold.
The company said that the preliminary ground magnetic data from the recently completed geophysical survey suggests the stronger gold mineralisation at the Kogodou Prospect may be associated with a series of four major east-west-trending cross-structures.
GMR reported that the results continue to confirm the potential for a major strike extension to the Mineral Resource to the east and the exceptional prospectivity of the previously unexplored Margou and Gouéli permits.
The Kouri Project is located 230km NE of Ouagadougou, on the Samira Greenstone Belt in Burkina Faso, West Africa. The project covers an area of 325km2.
Golden Rim had acquired two exploration permits, Goueli permit and Margou permit, which lie directly adjacent to the eastern boundary of the Kouri permit.
The Kogodou Prospect extends for 3.8km to the east of the current 1.4Moz Mineral Resource. Previous rock chip sample results included 42.8g/t gold, 41.2g/t gold, 32.1g/t gold and 22.4g/t gold.
Exploration campaign at Kouri
GMR reported that its exploration campaign at its Kouri Gold project is currently ongoing, with additional rock chip samples and geophysical data being collected.
Multiple structures at Kogodou
The company reported that the preliminary ground magnetic data from the recently completed geophysical survey suggests the stronger gold mineralisation at the Kogodou Prospect may be associated with at least four major sub-parallel east-west-trending cross-structures or in areas where east-west and north-east-trending structures intersect.
The four east-west cross-structures include Structure A, Structure B, Structure C, and Structure D.
Structure A is the most northern of the cross-structures and the most extensive with at least 13km of strike. It extends west from the Kogodou Prospect to the Guitorga North Prospect (north of the Mineral Resource) and to the Maré Prospect. To the east of the Kogodou Prospect it extends for 3km. It remains unexplored along most of its length.
Structure B extends directly to the east from the northern portion of the Mineral Resource for at least 4km; while Structure C extends west from the Kogodou Prospect through the centre of the Mineral Resource area.
Structure D is the most southern of the cross-structures and extends 6.5km west from the Kogodou Prospect to the southwestern portion of the Mineral Resource where it is known as the Footwall Shear Zone.
High-grade gold from Structure A and D
The company reported that high-grade gold results continue to cluster at the Kogodou Prospect, especially in Structure A and structure D.
The company reported that at the Kogodou Prospect a new rock chip sample grading 11.7g/t gold was obtained from the structure A.
It may be noted that at the Guitorga North Prospect, previous auger drilling returned 2.4g/t gold and at the Maré Prospect, previous reverse circulation (RC) drilling returned intersections of 4m at 9.2g/t gold, from 44mand 15m at 3.8g/t gold, from 53m (BARC347) on the structure.
The company reported that the new rock chip results related to structure D at the Kogodou Prospect include 32.3g/t gold, 29.2g/t gold, 22.4g/t gold, and 14.6g/t gold.
It may be noted that the previous drill intercepts in the Footwall Shear Zone include: 21m at 5.6g/t from 13m, including 2m at 42.2g/t; and 12m at 1.1g/t from 51m (BARC083) and 4m at 44.7g/t from 34m, including 2m at 89.5g/t (BARC327).
Strong rock-chip samples from two new areas
The company announced that the program also returned high-grade rock chip samples in two new areas located to the NE of the Mineral Resource.
GMR said that the first area is located approximately 12.5km from the Mineral Resource and returned a peak assay of 13.0g/t gold.
The company said that this zone consists of two parallel lines (about 50m apart) of artisanal workings that each extends for 250m. The location of the gold workings corresponds to a magnetic low in the new ground geophysical data and the pressure shadow of a major granodiorite intrusion.
The company reported that the second new zone is located approximately 18km NE of the Mineral Resource, and returned a peak assay of 24.4g/t gold. The company said that this area has not been covered by the new ground geophysical survey.
Updates and next steps
GMR reported that during January 2020, five new diamond drill holes were completed along Structure B.
Two holes, BADH014 and BADH015 were completed as infill holes in the existing Mineral Resource and three holes, BADH013, GDH003, and GDH004 were completed to test for strike extensions to the gold lodes that comprise the Mineral Resource into the Kogodou Prospect.
The company said that assay results are pending for these holes.
Golden Rim reported that a total of 20 RC holes are planned to test approximately 500m of potential new strike to the gold lodes that comprise the Mineral Resource along Structure B at the Kogodou Prospect.
The company noted that although high-grade gold in rock chip samples has been obtained throughout the Kogodou Prospect, most of the area has received no geochemical testing due to the sparsity of outcropping rocks.
GMR said that to better define target areas for follow-up RC drilling a program of auger drilling, on a 200m x 50m pattern, is currently underway at the Kogodou Prospect.
The company announced that promising results will be followed up (where practicable) with trenching, RC drilling or DD drilling. GMR reported that the exploration and infill drilling will continue to target projected lateral and depth extensions of the mineralisation and to increase the confidence in the Mineral Resource.