Summary after putting the info below together.Data overload.and...

Summary after putting the info below together.

• Data overload.and not even complete....
• No obvious ground exploration in the immediate Parkland sampling areas.
• Airborne magnetics, AEM, and gravity available along with regional and local detail mapping based on available outcrop.
• Lag samples up to 5 g/t Au from early geochem at Minyari to give an idea of what might happen at Parkland.
• Spatial distribution and open size are encouraging as per @Onceover's comments.
• Structure and location relative to the Wilki granite may have been the reason the area was chosen for sampling along with the lack of prior exploration.
• Deep weathering and/or hard silcrete layers may make drilling challenging - RC rather than AC perhaps even though more expensive.
• Compilation of available historical data to the NW to CR?
• Expanding soils at Parkland is planned. How to drill test even what is there? Ground geophysics? Fences of inclined holes (what worked at Chicken Ranch?
• Good start with a lot of work to go.
• Thought of Winu discovery history with thought experiment and the first two holes into an anomaly successful... Parkland?????????????

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Had been meaning to take a look at Parklands for awhile. Your post piqued my interest.

Have you wondered why they began here?
First cab off rank for a major soil/lag sampling program?




After trying to compile historical data (drilling/geochem/mapping) and doing a fairly detail visual search of Google Earth and Esri Wayback imagery the choice still needs input from the source (AZY Wilki JV planners) IMO.

Tracking down historical drilling is a massive task around Telfer (and most areas where there is historical activity - geoview certainly makes aspects easier). Not helped by NCM's secrecy(?) and apparent lack of reporting if two instances are examples. Geoview registers many drill holes as coming from A104954 and 106201 but the reports do not seem to contain any details other than visuals on Geoview. Suspect the readily available data are the tip of an iceberg. It is overwhelming for some of my systems ...and me.



Conveniently in a gap between reported historical drilling.

After going through the process above the most convenient explanation seems to be serendipity in a structurally interesting area. The lack of previous (obvious anyway) ground exploration may have been a reason to try here.

Do they have the gravity data?
While Gravity in Geoview is at a poor resolution there are only subtle features visible. More from the detail survey?

The Wilki Granite intrusion south of Parkland is a distinct feature. Removing the clutter of drill holes shows Telfer may be in a different domain.



Geology
GSWA 1:100K mapping with no interp by them.



An early interpretive map from AZY's initial compilation A109118. [ Which contains drilling data (1542 holes), and c6000 geochem points which are only tip of the iceberg for the overall area ....]



The geol interp may offer some hint as to why Telfer seems different - large intrusives either at surface or relatively shallow (Crofton and Minyari granites - magnetic/non mag respectively). Note there is the O'Callaghan granite to the SE of Telfer with a large thermal halo.

Magnetics
A coloured version of the first vertical derivative is given in the original announcement of Parkland. A broader image 1VD





The Wilki Dome and associated granite are visible. Lack of outcrop and limited drilling make the geology highly interpretive (Think Rimfire?) The granite may be a composite of magnetic and non magnetic with a subtle differentiation of gravity. There is an annular rim of sedimentary outcrop which has an "interesting" relationship to the wider stratigraphy. Thermal aureole as well? Fascinating beast.

AZY's preliminary structural interpretation:







Outcrop is well defined on part of the NW quadrant of the Wilki Dome (and for much of the dome) with a linear magnetic high outboard to the NW.perhaps related to a mafic unit or dyke. Drilling stops on the NW margin of the outcrop with only a few holes SE of the outcrop and into the granitic intrusive.

The NW SE (Chicken Ranch to Parkland and beyond) linear mag feature is strong with local zones of outcrop and patchy AEM.

Hints of structure inside the Wilki granite. Zoned?

[Note there are a subtle discrepancies between Geoview and holes plotted from downloads (black squares c 25m) which is probably due to geodesics and corrections needed but not applied.]

AEM were flown by the Wilki JV/AZY with the WEM 20 anomaly shown in the compilation above (magenta ellipses).

Geochem
Data dump from GE with 2015 geochem data in the area around Parkland. Green diamonds.


Note: Multiple companies and methods which may or may not have been effective tests. Applies to all methods above and will in the future as well. Best available at the time!

A111035 extract for deflation lag samples at Minyari.


Drilling
With several thousand holes available I have been lazy and not gone there very much. LOL
Some comments from skimming early reports and other readings.

• Weathering at Chicken Ranch is apparently very deep with up to 200m from memory.
• Passing comments from the Normandy JV with Mt Burgess in open files from the late 90s suggests that drilling can be challenging with layers of silcrete.
• The majority of holes were RAB or Aircore.
• The trend east from Chicken Ranch has been tested to within 1500m NW of the parkland anomaly. One reason for my drill hole search was the observation of a line of drilling still visible on GE/ESRI wayback after some 25 years that showed my data base was lacking. Still is but added another couple of thousand holes which makes GE slow down.

MORE THAN ENOUGH SEE SUMMARY AT TOP. AND DYOR.