hmmm....
possibility for archaeological preservation and recovery of traces (eg microsherds/tefra or 'exotic' elements) very dependent on sedimentary context, strength of pedogenesis + bioturbation, and diagenesis of materials in question over time - in short, yes in 'nicley accumulating' minerogenic/biogenic sediements, but not in active soils for any length of time - buried + well sealed soils may present different possibilities. Many other relevant factors (eg hydrological and meterological) may also apply. Taphonomy and event/sedimentation lag also a potential problem
In bone: - not really as bone mass turn over too high.
In teeth: possible - but would need strong local input with high residence time - but would also depend on identification of 'exotic' elements (not of conceivable local geological origin) - in some areas (eg those with strongly volcanic surface geologies) this would not be possible - - -.........
traces will detecable on surfaces after this event and with variable residence periods in different materials and situations - they may not be good for plant and animal life, dependent on initial concentrations, as modified by 'geological' concentration and food chain concentration. However for teh reasons given above 'exotic' materials will occur as a pulse before being either 'sealed' (eg in undisturbed sediment) or widely distributed/diluted (eg to 'normal levels). Because of this there will be minimal impact on archaeological material (which has already under gone similar 'dust showers' in the past), unless significant particulates (eg a visible layer of dust) actually settle over onging samples/sites etc - this is not likely to happen, and even then only elemental analysis is likely to be distorted....
possibility for archaeological preservation and recovery of traces (eg microsherds/tefra or 'exotic' elements) very dependent on sedimentary context, strength of pedogenesis + bioturbation, and diagenesis of materials in question over time - in short, yes in 'nicley accumulating' minerogenic/biogenic sediements, but not in active soils for any length of time - buried + well sealed soils may present different possibilities. Many other relevant factors (eg hydrological and meterological) may also apply. Taphonomy and event/sedimentation lag also a potential problem
In bone: - not really as bone mass turn over too high.
In teeth: possible - but would need strong local input with high residence time - but would also depend on identification of 'exotic' elements (not of conceivable local geological origin) - in some areas (eg those with strongly volcanic surface geologies) this would not be possible - - -.........
traces will detecable on surfaces after this event and with variable residence periods in different materials and situations - they may not be good for plant and animal life, dependent on initial concentrations, as modified by 'geological' concentration and food chain concentration. However for teh reasons given above 'exotic' materials will occur as a pulse before being either 'sealed' (eg in undisturbed sediment) or widely distributed/diluted (eg to 'normal levels). Because of this there will be minimal impact on archaeological material (which has already under gone similar 'dust showers' in the past), unless significant particulates (eg a visible layer of dust) actually settle over onging samples/sites etc - this is not likely to happen, and even then only elemental analysis is likely to be distorted....