11-17-2009, 12:55 AM
<!--QuoteBegin-ramana+Nov 17 2009, 12:25 AM-->QUOTE(ramana @ Nov 17 2009, 12:25 AM)<!--QuoteEBegin-->[Is it possible for ~20 kt to produce a retarc in 120m if it was in granite "pink" or otherwise?
i.e it behaved as an overburied device for that shaft and that yield?
They say S2 was ~ 150m and 25kt and produced a 25m radius crater.
[right][snapback]102590[/snapback][/right]
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The 2 shafts were separated by 1 km. So even if there was a granite layer, it should affect both the S1 and the S2 device in a similar manner. In fact if the S2 device was located 150 m underground and the S1 device 120 m underground and both had same yields then I would expect roughly a larger crater for the S1 device then the S2 device. Remember that the 8 kt Pokhran 1 device buried 107 m underground created a large crater.
So if the S1 device was really placed 120 m underground and it yielded 20 kts then it should have given rise to a crater with a diameter greater than 25 m. The pink granite strata should not substantially change this conclusion since it would also affect the S2 device.
i.e it behaved as an overburied device for that shaft and that yield?
They say S2 was ~ 150m and 25kt and produced a 25m radius crater.
[right][snapback]102590[/snapback][/right]
<!--QuoteEnd--><!--QuoteEEnd-->
The 2 shafts were separated by 1 km. So even if there was a granite layer, it should affect both the S1 and the S2 device in a similar manner. In fact if the S2 device was located 150 m underground and the S1 device 120 m underground and both had same yields then I would expect roughly a larger crater for the S1 device then the S2 device. Remember that the 8 kt Pokhran 1 device buried 107 m underground created a large crater.
So if the S1 device was really placed 120 m underground and it yielded 20 kts then it should have given rise to a crater with a diameter greater than 25 m. The pink granite strata should not substantially change this conclusion since it would also affect the S2 device.