[meteorite-list] Largest Crater in the Sahara Desert and LDG

[Mike Fowler]

Hi List,

My two cents worth:  Tektites are blasted into space and then  
return.  Horizontal flow, blast , ejection or whatever, would not a  
tektite make, at least in the classical sense.

Mike Fowler



> Where is the dividing line between impactite and
> tektite? I'd like to hear what others may understand,
> but my impression is that it fundamentally hinges on
> distance the glassy material is ejected from the
> crater. Material found only in and immediately around
> the source crater is impactite. Stuff blasted tens to
> hundreds of km or more crosses the definitional
> boundary into "tektites".
>
> If this is the criterion, LDG was already home free in
> my book insofar as the known strewn field has a long
> axis of at least 150 km, so even if there was a
> now-erosionally removed crater at one end of the
> strewn field proper, some of the glass would've
> already required over 100 km ejection distance.