Other
Scientific paper
Jan 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006e%26psl.241..972r&link_type=abstract
Earth and Planetary Science Letters, Volume 241, Issue 3-4, p. 972-977.
Other
1
Scientific paper
The temperature changes caused by water exsolution from magma have been determined through calorimetric measurements performed on phonolitic and albitic compositions. The enthalpies of mixing of water with these melts have been derived from HF solution calorimetry, made at 323 K on glass samples containing up to 5 wt.% water, together with heat capacity data for the same series of samples. Mixing between aluminosilicate melts and water appears nearly ideal at magmatic temperatures, with small enthalpies of mixing that are negative for both melts at low pressures but can become positive for albite at high pressure. Regardless of the endothermic or exothermic nature of the process, water exsolution is associated with negligible temperature changes of only a few degrees even when 5 wt.% H2O is degassed. However, thermal effects might be greater for more depolymerized melts such as basalts and related compositions.
Hovis Guy
Richet Pascal
Whittington Alan
No associations
LandOfFree
Water and magmas: Thermal effects of exsolution does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Water and magmas: Thermal effects of exsolution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Water and magmas: Thermal effects of exsolution will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1204050