> [Original Message]
> From: Daniel R. Zeigler, Ph.D. <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Date: 2/27/2001 1:45:00 PM
> Subject: RE: Europa submersible hypothetical
>
>
> At the Europa Focus Group meeting there was a talk scheduled entitled
> "Simulations of europan ices at JPL's Extraterrestrial Materials
Simulation
> Laboratory" by Jacklyn Green. The talk wasn't given; I never heard why.
> But I presume JPL, at least, is working on it. I'm sure they'd like some
> more probe data to help constrain their models, like everybody else.
>
> On the sulfur content question, my understanding is that the chondritic
> material believed to have formed Europa would have brought in abundant
> sulfur. Europa would have lots of sulfur for the same reason Io does -
the
> initial building materials for both were similar. No doubt some surface
> contamination of Europa would also occur due to Io's volcanism, but the
> seabeds of elemental sulfur and the sulfuric acid ocean would be Europa's
> "fault," not her sister's. My answer is based primarily on Jeff Kargel's
> models, but since I very well could have misunderstood them, you can check
> them out yourself. See Kargel et al. 2000. Icarus 248:226.
>
> Dan Zeigler
I asked that question then I noticed a post about a certain Dr. Robert
Carlson. I don't know if this is the same Dr. Robert Carlson that is an
Oncologist from Stanford, but apparently NASA employed him to study data
from Galileo's spectral analysis and claimed that the patterns of sulfur
found on Europa's surface was consistent with some expected exposure to Io.
I'll check out Kargel's model too.
--- <chooser-of-tactics>
--- [EMAIL PROTECTED]
"Ignorance more frequently begets confidence than does knowledge:
it is those who know little, not those who know much, who so positively
assert that this or that problem will never be solved by science." --
Charles Darwin
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