Hi Rob, Sterling and List,
Thanks for the reality check Rob, a.k.a. that pesky detail called
conservation of mass that insists on being respected even in sexy mudpits.
Sterling, what % is spalled backwards in these (much-to-be-desired) models
of such low-end impact energies in somewhat "amortizing" soils? For
argument sake let's say that 50Kg of powder and fragments were tossed out
before being enveloped by the mountain pudding.
Best Health,
Doug
----- Original Message -----
From: "Rob Matson" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Wednesday, October 17, 2007 1:52 AM
Subject: [meteorite-list] Carancas vs. Canyon Diablo?
Hi Sterling,
I am little perplexed why you persist in comparing the Peru
event to Meteor[ite] Crater, when the two events share very
little in common other than an extraterrestrial origin. The
energies involved are many orders of magnitude apart; without
pulling out a hand calculator I would guess that Park Forest
was a closer match to Carancas than Canyon Diablo.
For me, there is nothing about the dimensions of the impact
pit (I refuse to call it a crater) that precludes a significant
mass of meteoritic material buried within. Yes, this mass is
likely in many pieces, but I don't see how the collective can
avoid weighing less than a metric ton.
You seem to believe that hitting the ground was somehow more
stressful to this meteoroid than hitting the upper atmosphere.
If so, that would be a first.
Best wishes,
Rob
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