The Project area contains four principal gold bearing quartz veins that were previously mined via shallow open pits within granodiorite
Geology Type granite-gneiss and retrograde granulite gneiss with minor amounts of granite and granodiorite
Additionally, tin and tantalum mineralisation, in quartz and pegmatite veins within a granodiorite
host, has been identified by on-site geologists in a number of samples.
This volcanic unit is interpreted to form a thin veneer which overlies the granodiorite
unit that is the host of most mineralization at FGM.
0 Ma (U-Pb zircon) and is inferred to be coeval with or slightly older than the Lake George granodiorite
(412 +5/-4 Ma, U-Pb zircon).
occurs 7-8 km to the north or 6-7 km to the east of Vale de Rodrigo; it must have been transported from there.
The objective of the first phase of drilling will be to 1) confirm some of the historical gold intersections in proximity to the past-producing Standard Gold mine and 2) test the host granodiorite
intrusion for possible extensions to gold mineralization along sections spaced 700 meters apart.
The predominant Freistadt s granodiorite
can be found in solid form or in coarse blocks.
Gold mineralisation at the Kourouba Prospect is hosted by intensely hematite-feldspar-chlorite altered granodiorite
Copper mineralisation consisting of native copper, chalcocite, bornite, chalcopyrite, and malachite is hosted in a broad northwest-trending zone of altered granodiorite
and occurs as disseminations, along fractures and in veins.
The highest Hg concentrations in the granitoid rocks are in samples from the Boot Lake Granodiorite
, which contains up to 32% biotite.
Continental arcs are well developed in the northeastern Superior Province, where hydrous to charnockitic granodiorite
and tonalite crystallized as massive vertical sheets between 2.