Wide spaced aircore drilling (approximately 7km x 3km) by CRA Exploration Pty Ltd during
1989-90 demonstrated that phosphate mineralisation was widespread throughout the licence.
The spoils from drilling were screened to the +5mm size fraction and then assayed.
Seems to me like air core drilling is not rock chip sampling. It has been screened so that it can be assayed
are phosphate grades at stb better than mak, page-3
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