The recent sections made me think there could be some input from the seismic data regarding faulting so I looked through some recent and older sections.
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The geology of the various units here is obviously the basis of the interpreted faults.
Also on this section and a lot of others is a thin chert horizon which is probably what was highlighted in the seismic long section. In stratigraphic terms it is the top of PY1.
Most sections don't have sufficient drilling to show fault off sets.
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There is evidence of significant post? mineral faulting.
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While Walford Creek is already a large deposit and will continue to grow I wonder about how exploration will proceed after this year. The size and grade of the deposit will compensate for the structural complexities but defining the PY3 high grade zones at >200m depth will require a lot of drilling or an alternate approach if seismic or other geophysical methods aren't too definitive.
Wide spaced drilling is showing two main zones of sub horizontal mineralisation which range up to 100m down dip and up to nearly 50m in thickness with rapid variations in dimensions and grade. I have tried to think of other deposits which have a similar style of mineralisation (I call it "snake like" for want of a better term -
a la this Speccy image) but can't think of anything on this scale (up to or over 12 Km length).
Vardy Marley area ~2Kms.
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How many meals has the Walford Creek "snake" swallowed?
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That is holes like 352 with 40+m of high grade mineralisation. However, at 350+m taking a resource to indicated or better will be very expensive and may require underground development of some nature.
Going back to 2015 there are some old images that show the Pb/Zn potential which was perhaps the initial target at WC.
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The inset image on this drill plan shows Hole 179 with a 24m of interesting Cu/Pb plus traces of Co Zn Ag from 581m. I wonder if this is in what is now called PY3 or may be an even deeper zone that could be part of a distant future at WC?
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Excuse this post a bit - nearly didn't get done with such a mish mash of not too well constructed ideas late this weekend.