ENR (ASX) Ann: Large mineralised carbonatite emerging at Green -West Arunta

FWIW here is an attempt at showing the sequence of drilling at Green from first evidence on 12/6 to most recent pass on 17/7.

[Sentinel have recently updated missing data for 12/7. ]
The rig was busy at Crean west (~34 holes) between 27/6 to 7/7 then returned to Green.

Priority samples were taken from Lines 1-4 of the 8 lines drilled in the first pass at Green.

First pass drilling 1-8 was with 160m spaced holes.
Announcement dates will be later than the date of data availability for obvious reasons. The amount of delay will vary but unlikely to be significant most of the time.
Infill lines 9-11 and perhaps L12 as well as some infill to 80m (I12) were all drilled before Priority assay results were reported or even soon enough to be acted on with much precision.

The excitement of a potential discovery infects the exploration process at times leading to what I interpret ENR to have done at Green. Feel they are onto a real winner before a reality check. There are other PXRF and logging information which would have informed the decision to proceed as they have. Even so I suspect there has been a strong reliance on the reliability of PXRF results in the field.

The timing of drilling on the south extension to line 8 (8X) interests me with something possibly going on along the Stromness Fault.
Line 12 checking along SE extension adjacent to Stromness F. and close off to the east? [See image below]
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Using depth as a proxy for carbonatite may have some merit at Green and Crean.

Assuming the majority of holes are drilled to roughly the same level of refusal is possibly reasonable and means a relatively uniform data set. Big assumption with a lot of variables.

The 80-100m EOH depth contours may give a rough proxy for carbonatite. The western portion may be a combination of structure and carbonatite. Less clear in east.
The northern "contact" shows an abrupt deepening in hole depths (20+-60+m) where the hexagons are plotted. Why? See Crean sections below for one possibility.
With carbonatite confirmed in the west there is a reasonable chance the deeper holes generally intersect carbonatite. If correct a large zone that has been tested with 80m spaced holes.
The depths in the south of the eastern most line in this image are one reason I am keen to see the results for Line 8 extension.

The Left hand image from Crean is possibly a better example for what is seen from drilling depths at Green. The RH image is more subtle in depth differences.
The above is for interest and definitely no substitute for actual observations from logging.

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Why is Green an arcuate shape?

Actual and interpreted aircore on magnetics. Note difference in resolution of magnetics from ENR's survey in the north and other survey(s) in south.

Is the Green 'carbonatite' actually arcuate or structurally controlled or asymmetric ring dyke (see 2ic post) or?
As a NE to then SE trending body there is a distinct change of strike relative to mag interpreted trends in surrounding lithologies.
The western portion cross cuts while the eastern part becomes more strike/fault parallel.

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Joyce appears to be a fault bounded graben? with different magnetic characteristics to the Carrington suite(?) gneisses to the North and Lake Mackay quartzites(?) to the south east. With possible intrusive carbonatite extending to the east at Green, Joyce remains an interesting target.

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Finally I had assumed that blue magnetics would mean deeper cover/weathering. Results at Green contradict this idea at least locally.