Was there ever a reply to Tom Trull's query regarding whether we are
oxidising organics (meaning carbohydrates and hydrocarbons?) or just
decomposing/pyrolysing them? The problems of combustion in O2 probably
hinge on poor temperature control if the organics start to decay
exothermically, but I wonder whether there might not be other problems
resulting from reduction by organic matter if heated in vacuo?
Really, the aragonite/calcite conversion problem is perhaps a completely
What changes will occur in organics at 220 degrees C in vacuo?
Either way, what happens to organics trapped inside mineral grains, such as
humic material in speleothem?
Does anybody have any thoughts on this?
University of East Anglia