Igneous Fossils, like in Pompeii??
Do we look for Hens' teeth & Horse feathers???
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Re: Igneous Fossils, like in Pompeii??
#21 
by Darwinsbulldog » May 08, 2011 5:41 am
Theropod wrote:-
Well, that sort of ball-park yes, but provided it is not too off-topic, and of interest, why not post it? Sometimes the most unusual or "anomalous" [or apparently so] phenomena are the most interesting.
I am deep into marking papers at the moment... so I hope to follow the thread in more detail next week.
DB, is our task to find a specific repetition of the Pompeii casts in a very similar depositional setting?
Well, that sort of ball-park yes, but provided it is not too off-topic, and of interest, why not post it? Sometimes the most unusual or "anomalous" [or apparently so] phenomena are the most interesting.
I am deep into marking papers at the moment... so I hope to follow the thread in more detail next week.
DBD is a fun username. I do not imagine myself as a reincarnation of T.H. Huxley, and with respect, neither should you.
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Darwinsbulldog - THREAD STARTER
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Re: Igneous Fossils, like in Pompeii??
#22 by theropod » May 08, 2011 10:55 am
DB,
Ah the weekend life of an instructor! What a party animal.
RS
Ah the weekend life of an instructor! What a party animal.
RS
11 years off-grid and counting.
Creationism:
Ignorance on a scale so extreme that we have yet to invent an instrument robust enough to withstand the measurement, but we're working on it.
Creationism:
Ignorance on a scale so extreme that we have yet to invent an instrument robust enough to withstand the measurement, but we're working on it.
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theropod - Moderator
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Re: Igneous Fossils, like in Pompeii??
#23 by Darwinsbulldog » May 09, 2011 2:19 am
Either fuck off or help me mark, dammit!
Uploading the papers to you now! 
DBD is a fun username. I do not imagine myself as a reincarnation of T.H. Huxley, and with respect, neither should you.
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Darwinsbulldog - THREAD STARTER
- Name: Robert Hunter
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Re: Igneous Fossils, like in Pompeii??
#24 by theropod » May 09, 2011 11:24 pm
Downloaded and on their way back to you with corrections in deep red.
RS
11 years off-grid and counting.
Creationism:
Ignorance on a scale so extreme that we have yet to invent an instrument robust enough to withstand the measurement, but we're working on it.
Creationism:
Ignorance on a scale so extreme that we have yet to invent an instrument robust enough to withstand the measurement, but we're working on it.
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theropod - Moderator
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Re: Igneous Fossils, like in Pompeii??
#25 by Darwinsbulldog » May 10, 2011 1:28 am
DBD is a fun username. I do not imagine myself as a reincarnation of T.H. Huxley, and with respect, neither should you.
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Darwinsbulldog - THREAD STARTER
- Name: Robert Hunter
- Posts: 3193
- Age: 57
- Country: Australia
Re: Igneous Fossils, like in Pompeii??
#26 by susu.exp » May 15, 2011 7:54 pm
How close to pompei does it have to get? I know quite a few tuffs that aren´t reworked with fossils, shallow marine deposits in Bulgaria and Denmark for instance and quite a few lacustine ones in Germany. I´m aware of one case where tree fossils have been preserved in a pyroclastic flow up to a certain height and broke off above that height (rather interesting, because the broken fragments are also preserverd).
susu
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Re: Igneous Fossils, like in Pompeii??
#27 by Hopeful Monster » May 15, 2011 9:48 pm
There are actually quite a few, look up large igneous provinces and fossils. The deccan traps are one of them.
http://en.wikipedia.org/wiki/Deccan_Traps#Fossils. Similar fossils have been found in LIPs on different continents. That's one way of determining that they're genetically related and have subsequently been rifted away.
LIPs are really interesting because they're thought to be associated with high volcanic activity during continental rifting. The big question is whether or not they come before or after rifting starts, which comes down to the whole debate about whether rifting causes volcanism or volcanism causes rifting (i.e. mantle plumes).
http://en.wikipedia.org/wiki/Deccan_Traps#Fossils. Similar fossils have been found in LIPs on different continents. That's one way of determining that they're genetically related and have subsequently been rifted away.
LIPs are really interesting because they're thought to be associated with high volcanic activity during continental rifting. The big question is whether or not they come before or after rifting starts, which comes down to the whole debate about whether rifting causes volcanism or volcanism causes rifting (i.e. mantle plumes).
"If you can't dazzle them with brilliance, baffle them with bull." - W. C. Fields
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