[ RadSafe ] Aussie U dust in Antarctica??

[Jaro Franta]

Thanks Marc,

RE:  " I am pretty sure that virtually no dust remains uncollected to waft
off into the atmosphere and head off to the Antarctic Peninsula and
elsewhere."

As I was saying earlier, if this weren't the case, where would one expect to
see the highest readings on the Radiometric Map ?
Surely not hundreds of km away, while the immediate surroundings remain much
lower.
https://db.tt/pN8fmZNI


 Jaro
^^^^^^^^^^^^^^^^^^^^^^^^^





-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Mark Sonter
Sent: Wednesday, July 27, 2016 8:29 PM
To: radsafe at health.phys.iit.edu
Subject: Re: [ RadSafe ] Aussie U dust in Antarctica??

I find this all a bit weird.

Olympic Dam (Roxby Downs) is an underground mine (albeit a damn big one).
The dust (and exhaust air) from underground operations gets a pretty
thorough inadvertent but desirable 'scrubbing' as it comes up the
400 metre unlined ventilation shafts, by virtue of the fairly high volume of
inflowing saline groundwater. The exhaust is thus a high volume saltwater
spray, which gets directed into spray catcher baffles anyway, and I am
pretty sure that virtually no dust remains uncollected to waft off into the
atmosphere and head off to the Antarctic Peninsula and elsewhere. Now
admittedly, that might not apply immediately after mass blasts...

Surface operations do not produce much dust: there is no surface dry
blending, and no surface crusher, the ore going straight to SAG milling.

So I think OD is an unlikely culprit... but a coincident timeline change of
copper assay would provide corroborative but still not conclusive evidence..

Mark

Mark J Sonter

Director & Principal Consultant, Radiation Advice & Solutions Pty Ltd, abn
31 891 761 435

Co-Founder & Director: Mining & Processing, Deep Space Industries Inc.

116 Pennine Drive, South Maclean, Queensland 4280, Australia

Phone/fax:  07 3297 7653; Mobile: 0447 755598

(delete '0' & replace with '61' country code if calling from overseas)


"Keep everything as simple as possible, but no simpler"  - A. Einstein




>>>
>>> -----Original Message-----
>>> From: radsafe-bounces at health.phys.iit.edu
>>> [mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Jaro 
>>> Franta
>>> Sent: Thursday, July 21, 2016 3:46 PM
>>> To: 'The International Radiation Protection (Health Physics) Mailing
>> List'
>>> Subject: Re: [ RadSafe ] Australian Uranium in Antarctic Ice ?
>>>
>>> Or, to be precise, Uranium from Australian MINES is claimed to be 
>>> found
>> in
>> Antarctic ice.
>>>
>>> What do you make of it ?
>>>
>>> http://www.sciencedirect.com/science/article/pii/S1352231016304423
>>>
>>> ------------------
>>>
>>> My thoughts:
>>>
>>> Looking closely at a Radiometric Map of Australia (
>> https://db.tt/pN8fmZNI
>> ), I see that the region around Roxby Downs, the town next to Olympic 
>> Dam mine (producers of both uranium & copper) has a low surface 
>> concentration of uranium.
>>> Certainly lower than the Flinders Ranges to the east, or other areas 
>>> to
>> the south.
>>> That being the case, how can lead researcher Mariusz Potocki 
>>> reasonably
>> expect readers to believe his claim that uranium found in Antarctica 
>> comes from Australian uranium mines ?
>>> Does he propose some sort of magical transport mechanism that avoids 
>>> the
>> regions where mines are located, going directly to Antarctica ?
>>>
>>> It seems that, if anything, the Uranium found in Antarctic ice must 
>>> be dust from the erosion of the Flinders Range and other large 
>>> geological features that standout in the Radiometric Map of 
>>> Australia ( https://db.tt/pN8fmZNI )
>>>
>>> Is there similar experience elsewhere in the world, such as dust 
>>> blowing
>> off the Sahara desert, from U-loaded phosphate deposits ?
>>> How much is from mining, and how much from general soil erosion ?
>>>
>>>
>>> Thanks.
>>>
>>>
>>> Jaro Franta
>>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^