Bingo?
https://en.wikipedia.org/wiki/S-75_Dvina"Wide-scale deployment started in 1957, with various upgrades following over the next few years.""The V-750 is a two-stage missile consisting of a solid-fuel booster and a storable liquid-fuel upper stage, which burns red fuming nitric acid as the oxidizer and kerosene as the fuel.""One version, the SA-2E, mounted a 295 kg (650 lb) nuclear warhead of an estimated 15 kiloton yield or a conventional warhead of similar weight."
Ok so where are you going with this?
Regards
Star man
Good question :)
The natural source theory (potassium) for the tests on the ravine 4 has to be an outlier. But if the radiation is man made then the water test shows that the most probable scenario is (very) high levels at the time of the DPI event. So there is no moderate artificial contamination scenario, it's either natural (unlikely) or high levels that are very difficult to explain as occupational.
and there's good evidence of electro magnetic phenomena, no2/nitric acid exposure and the snow being unusually warm.
and the Soviets had SAM missiles that could have been fitted with low yield nuclear warheads as well as conventional.
So the narrative could be that in the cold war paranoia of the period they saw a massive object on radar hovering over the Urals and sent one of more SAM's in. Maybe they'd been reading comics about alien invasion...
Maybe the first SAM had a conventional warhead and when that didn't work they escalated.
If the missiles exploded in front of the western side of the ridge it would shelter the tent and the forest from the blast. But the wind would carry radioactive dust / NO2 or nitric acid over the tent area.
So it's a narrative that connects a lot of seemingly unconnected pieces of evidence which i like. It's still difficult to explain the rav4 deaths without damage to the trees. Maybe that was ball lightning...
Then they told Ivanov to cease investigating and closed the case when they had all the bodies closing the area for several years.