A proper relativistic theory with a probability density current must also share this feature.
2.
Hoffman counters that density currents can create the same features.
3.
Volcanic ash plumes can form above pyroclastic density currents, these are called co-ignimbrite plumes.
4.
This release produces a gas-supported dust flow that moves as a tenuous density current downslope.
5.
They suggest that the shear occurred as the density current passed over the forming deposit.
6.
Both of these are pyroclastic density currents that were still hot at the time of deposition.
7.
These processes produce large quantities of very fine grained ash which is removed from pyroclastic density currents in co-ignimbrite ash plumes.
8.
Some large agglomerate deposits are deposited from pyroclastic density currents during explosive caldera-forming eruptions, such as at Santorini, Taal, and Campi Flegrei.
9.
The collapse of the Plinian columns on the second day caused pyroclastic density currents ( PDCs ) that devastated Herculaneum and Pompeii.
10.
The speed of pyroclastic density currents has been measured directly via photography only in the case of Mount St . Helens, where they reached.
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