[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.