Rumble Resources Ltd’s (ASX: RTR) maiden reconnaissance RC drill programme at the Amaryllis Prospect confirmed significant gold-copper-silver mineralisation associated with historic drilling in Western Australia.
Technical Director, Brett Keillor, said the exciting drill results are the first received of three drill programmes recently completed.
Mr Keillor said the Rumble team is eagerly awaiting the assay results from two further drill programsme, one following up two large scale Zn-Pb-Ag discoveries at the Earaheedy Project and the other following up high-grade gold intercepted at the Western Queen Project in its maiden drill programme.
The Amaryllis Au-Cu-Ag Prospect lies within permits E51/1919 (RTR 100%), forming part of the Munarra Gully Project and lies some 60km to the north of the township of Cue, located in the Murchison Goldfields of Western Australia.
Historic drilling by explorers focused on gold, however, limited partial assaying by these explorers for Cu and Ag, and Rumbles Au-Cu association encountered at the White Rose prospect, highlighted the base metal potential associated with the gold at the Amaryllis Au-Cu-Ag Prospect.
The mafic hosted mineralisation style detailed in historic open file exploration reports was not encountered, instead felsic to intermediate volcaniclastics with high level associated porphyritic intrusives was found in all RC drill holes completed by Rumble.
Rumble’s drilling successfully confirmed a large-scale Au-Cu-Ag system and identified the mineralisation style has the potential for both large-scale shear hosted Au-Cu-Ag sulphide lode type and Au-Cu-Ag-Zn VMS type deposits.
“The results from the inaugural RC drilling programme at Amaryllis has completely changed our original geological model as felsic to intermediate volcaniclastic/porphyritic intrusion lithologies were encountered instead of the inferred mafic intrusive lithology as reported by previous explorers,” Mr Keillor said.
“No differentiated mafics (White Rose Prospect Style) were intersected. However, the drilling confirmed broad zones of open Au-Cu-Ag mineralisation with multiple higher-grade sulphide shoots.
“The mineralisation is likely a modified earlier VMS system with a strong mineralising shear overprint.
“The drilling has highlighted the potential for two target styles – large-scale shear hosted Au-Cu-Ag sulphide deposits (intersection of mineralising shear/splay with VMS horizon) and VMS Au-Cu-Ag-Zn deposits (potentially higher in the geological profile).”
Drilling was conducted over a strike of 1500m with the aim to confirm gold with partial copper and silver assaying defined by historic drilling. Historic down-hole TEM from four diamond core tails (also historic) with recent ground TEM completed by Rumble was also used to guide the confirmation drilling.
