The Wa-Lawra greenstone belt marks the eastern side of the larger Proterozoic Boromo greenstone belt which trends through southern and central Burkina Faso. The Boromo greentone belt is known to host a number of significant gold and base metal deposits in neighbouring Burkina Faso. This includes the 700,000 ounce Poara gold deposit, which is located 120km north and along strike from the Project, and also the Dienemera copper-gold porphyry deposit, located immediately adjacent to the Wa Gold Project on the Burkina Faso side of the border.
Gold or mineral deposits in Ghana, in particular the southwest of Ghana, lie within the Proterozoic domain, at or close to the margins of north to north east trending belts of metavolcanic rocks. Almost without exception, the major gold deposits of Ghana lie at or close to the margins of these greenstone belts, and are proximal to the strongly deformed structural contacts between these Upper and Lower Birimian rock sequences.
The Project covers about 70% of the Upper and Lower Birimian exposure typically known as the Wa-Lawra greenstone belt situated on the Ghanaian side of the border.
The Wa-Lawra greenstone belt displays very similar lithological and structural characteristics to the greenstone belts located in western Ghana, which host a number of 'World Class' gold deposits of over 5 million ounces. The Wa-Lawra belt is also characterised by major faults traversing the entire length of the project, trending north-south in the northern and central portions of the project, and north-northwest in the southern area of the project.
Gold mineralisation in Ghana is found in three principal settings, two of which have been recognised at, and are of significance to, the project. Of primary significance is gold mineralisation related to major structures in the Upper and Lower Birimian contact. The project contains a previously interpreted continuous 100km of strike length of Birimian age greenstones and a structural corridor which is represented by a semi-continuous gold-in-soil anomaly traversing the entire length of the Project.
The second style of gold mineralisation that is of regional and project importance is gold mineralisation associated with sheeted vein swarms and stockwork zones within granitoids. Numerous small to medium grantitoid intrusions are present within the Wa-Lawra greenstone belt that could potentially be host to this style of regionally significant gold mineralisation.
The final mineralisation style of significance at the Project is demonstrated by the presence of the Dienemera copper-gold porphyry deposit located adjacent to the Project. With the presence of numerous granitoid intrusions throughout the belt, the Company will also target copper-gold mineralisation associated with porphyristic bodies.