A new tenement application (E63/1825) increases the Company's tenement holding in the Norseman area (centred on the Pioneer Dome) to 10 exploration licences covering 545km2. The new tenement is the southern-most tenement shown in Figure 1 below.
Figure 1: LHS Pioneer Dome Project Tenements over aeromagnetic imagery, showing the location of known pegmatites PEG001-PEG014, and recently acquired E63/1825, the southern-most tenement shown. RHS Enlargement of PEG008 showing location of drill hole collars and PDRC015.
Photograph 1. RC drill hole PD001 is collared at the southern traverse of PEG008A
Photograph 2. Drill hole PD015 reached a depth of 108m, and show 103 x 1m sample piles of white pegmatite.
Figure 2: Schematic cross section of PEG008 showing the location of mineralisation in drill hole PDRC015.
Pioneer's Managing Director said "We're very encouraged with the information gained from the first drilling and particularly hole PDRC015, which marks a new lithium and caesium discovery. The Company looks forward to providing further updates to the market as more assay results and other minerology information comes to hand."
Managing Director
Pioneer Resources Limited
For further information please contact:
David Crook James Moses
Pioneer Resources Limited Media and Investor Relations
T: +61 8 9322 6974 M: +61 420 991 574
E: [email protected] E: [email protected]
-ENDS-
Notes about the Pioneer Dome Lithium Project REFERENCES
Company announcements to ASX 19 May 2016, 27 July 2016, 28 August 2016, 1 September 2016, and Quarterly Activity Reports.
Jones, M.G., (2005): "The Surface Geology of the Pioneer Dome Area, Yilgarn Craton, W.A"
Bradley, D., and McAuley, A. (2013): "A preliminary deposit model for lithium-cesium-tantalum (LCT) pegmatites". U.S. Geological Survey Open File Report 2013-1008 7p.
Martins, T., Kremer, P. and Vanstone P. (2013): "Field Trip Guidebook FT-C1 / Open File OF2013-8. The Tanco Mine: Geological Setting, Internal Zonation and Mineralogy of a World-Class Rare Element Pegmatite Deposit."
Tuck, C. A. (2015) "U.S. Geological Survey, Mineral Commodity Summaries, January 2015, (Cesium)"
GLOSSARY
Elements: "Au" means gold, "Be" beryllium, "Cs" caesium, "Cu" copper, "Ni" nickel, "Ag" silver, "Pb" lead, "Zn" zinc, "Pt" platinum, "Pd" palladium, "Li" Lithium, "Nb" niobium, "Rb" rubidium, "Sb" antimony, "Sn" tin, "Ta" tantalum.
"Cs2O" means Caesium Oxide, and is the elemental metal quantity converted to its oxide (in percent (%)), which is a form of reporting used for caesium in scientific literature. The conversion factor for Cs to Cs2O is1.06.
"Li2O" means Lithia, or Lithium Oxide, and is the elemental metal quantity converted to its oxide (in percent (%)), which is a form of reporting used for lithium in scientific literature. The conversion factor for Li to Li2O is2.153.
"Pegmatite" is a common plutonic rock of variable texture and coarseness that is composed of interlocking crystals of widely different sizes. They are formed by fractional crystallization of an incompatible element- enriched granitic melt. Several factors control whether or not barren granite will fractionate to produce a fertile granite melt (Černý 1991; Breaks 2003):
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presence of trapped volatiles: fertile granites crystallize from a volatile-rich melt.
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composition of melt: fertile granites are derived from an aluminium-rich melt.
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source of magma: barren granites are usually derived from the partial melting of an igneous source (I-type), whereas fertile granites are derived from partial melting of a peraluminous sedimentary source (S-type).
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degree of partial melting: fertile granites require a high degree of partial melting of the source rock that produced the magma.