Another lovely day

Just a quick posting this evening to show the GPR and earth resistance survey results.  Firstly the GPR.  We completed another 80x40m block, shown here as the upper block in the centre of the image.

The GPR survey after day 21.

The GPR survey after day 21 (slice 4).

The lighter grey band running NW-SE across yesterday’s and today’s blocks is a road.  Either side of the road we can see the foundations of buildings.  They are a little scrappy, but they are clearly there.  What is really peculiar is the large round white feature, i.e., one with no reflections, in the top-left corner.  If we compare this to the mag survey we can see there is a large magnetic anomaly (shown as a dark, roughly circular, blob) in the same place.

The same area as the above image showing the mag data in the block surveyed by the GPR on day 21.

The same area as the above image showing the mag data in the block surveyed by the GPR on day 21.

Cuiriously, the round “blob” shows in the GPR data but the very strongly magnetic rectangular feature just to the south does not.  One can just make out the SW-NE running ditch in both surveys.  I have no idea what the large round feature is, but it is very large.

The team running the earth resistance meter did a sterling job completing five 20x20m squares.

The earth resistance survey after day 21.

The earth resistance survey after day 21.

As can be seen, the road in the SE corner is showing up very clearly.  Why is it so vague further to the NW?  I guess is may have been robbed.  In the top-rightmost square we are starting to pick-up the walls of the large complex building revealed by the GPR.

Tomorrow the GPR will do another block to the north, and the resistance meter will continue working eastwards.

As always, thanks to everyone who helped today.  More tomorrow.

 

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