Bohrungen?

Geschrieben von Achim am 31. März 2001 14:16:07:

Als Antwort auf: Re: Wer hält das für in Ernst natürlich???? geschrieben von WGS am 30. März 2001 11:12:31:

Hi Walter!

Meinst Du diese Loecher mit "Bohrungen"?

Hier die Moeglichen Erklaerungen: "Weathered upper rock surface which looks volcanic, although it could be sedimentary (no information about the photo is given for some reason) Could be tree casts if rock is volcanic in
origin. That is structures that form when lava flows, pyroclastic flows or ash surrounds or buries upright trees, later the trees rots or burns away. If the rock is sedimentary it could also be tree casts, if the sediments were deposited rapidly, or it could be potholes (i.e. holes drilled by rock fragments rotated by current induced localized vortices over long periods of time."

Diese Loecher sind somit natuerlich erklaerbar. Zudem gibt es offenbar nur 2 davon, auf dem ganzen Gebilde!

Achim