Plymouth Minerals has announced the commencement of a ~2,000 Reverse Circulation (RC) drilling program at the San Jose lithium deposit in Spain.
“The RC programme is initially testing areas of known mineralisation that were previously drilled on a 45x70m pattern to approximately 150-200m below surface,” Plymouth told the ASX.
“This historical work was conducted between 1985 – 1991and comprised 42 RC and diamond drillholes for 8,400m and was as part of the historical feasibility study (non JORC) which included mining and processing studies to produce lithium carbonate.”
Plymouth said the drilling program was designed to test historical estimates of mineralisation with the aim of delivering a JORC resource for the current 1.15 million tonnes lithium carbonate equivalent (LCE) which is reported as a historical estimate of mineralisation.
“There has been insufficient exploration completed to date to estimate a Mineral resource in accordance with the JORC 2012 Edition Guidelines,” reads the company’s ASX release.
“It is uncertain if further exploration will result in the delineation of a Mineral Resource.”
Plymouth said its initial computer modelling has provided significant information for high priority and high value add target generation at the open San Jose lithium mineralisation.
“Drilling will initially test several sites within the main body of previous drilling and historical planned open pit location from the 1985 – 1991 study. This work will require RC drill holes from 150-200m depth,” it says in the statement.
“There will be up to 10 holes completed in this verification drilling prior to the RC drill rig being used for pre-collars on deeper diamond drilling (200-500m) which will test the open-ended, high-grade depth extents of mineralisation.”
According to the company, assay results from the drilling program are expected in January 2017, after which a JORC Resources Estimate will be published in Q1 2017.
“Additional diamond drilling will be conducted in the main body of mineralisation to provide material for geotechnical testing (for pit stability/wall angle) and to provide additional sample for metallurgical test work,” concludes the statement.