> From: "cdtuc...@cox.net" cdtuc...@cox.net
> This has already been pointed out as another reason co-ords have little 
> relevance. because they do move around. Whether by wind, 
> rain , flood , whatever. The point is that they do move around after landing. 
> And based on our active planet they may move great distances.
> Remember the post the other day with the fish raining down? The fact that it 
> happened is notable. the co-ords are not of much scientific
> importance. 
>
> Why, Because it was as random as all meteorite falls are. And to quote Ted 
> but one more time. " meteorites don't care where they land". I know. > but 
> hunters do!
> Carl

I would agree if proponents of mapping were arguing that the point of 
collecting coordinates had anything to do with trying to determine if some 
meteorites prefer to fall in specific areas on the earth.  Yes they do fall 
randomly and don't care where they land.

One reason for mapping is that it is very helpful for scientist, who may want 
to locate future specimens from a specific strewnfield, to know where they have 
been found before.  I know that with my limited time I would prefer to hunt 
inside a strewnfield rather than trying to figure out where the strewnfield 
is.  And I imagine that scientist with limited budgets would also prefer to 
have confirmed locations to check.

Another reason is that it can be useful for the study of impact craters, one 
can learn a lot about impact dynamics by knowing the true extents of a debris 
field.  Also, it would be useful to combine geologic mapping with meteorite 
mapping to understand what is happening geomorphologically.  Perhaps if a 
relationship can be found between specific geologic units, checking those 
geologic units in a nearby location, the same meteorites may be found there too.

We know that archaeological artifacts move around because of weather, humans 
and animals, but scientists think it's necessary to carefully map all finds 
they make.  I don't understand why that is important, but if I had permission 
to metal detect and track Cortez trail, like one meteorite hunter/detectorist I 
know does, I would follow his example and take GPS locations for all finds 
(including anything else the lead scientists ask me to do).  You never know 
when information might be useful, so spending a couple extra minutes recording 
information is worthwhile to me.  So while coordinates may be of little 
relevance, the can have relevance.  I don't want to make this about recording 
coordinates because there are other things that can be important.  I'm not 
saying we require everyone to do as I do, but I think it's a best practice.  I 
want to get into the habit by doing it each time, so that I become more 
efficient doing it.

And when the information is needed, I will have it available.  And I want to 
set an example for people new to the hobby.  Are there any scientists out there 
with an opinion?  I know Rob gave a great list of reasons a while back.  What 
other things are important to record when recovering a specimen in the field?

Happy hunting,
Mark B.
Vail, AZ
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