Phase diagram for ammonia-water mixtures at high pressures - Implications for icy satellitesThe (NH3)x(H2O)1-x phase diagram for X from 0 to 0.50 has been reexamined at temperatures from 125 K to 400 K and at pressures from 6.0 GPa using diamond anvil cells, and the implications of the findings for icy satellites are addressed. Titan is likely to have a thicker NH3-H2O ocean than previously suspected, because the stability field of NH3-H2O is found to be smaller than previously supposed. The implications for methane and ammonia volcanism on Titan are briefly discussed. The experimentally observed reactivity between the liquid and iron may also have implications for planetary and satellite evolution.
Document ID
19890049151
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cynn, H. C. (California Univ. Los Angeles, CA, United States)
Boone, S. (California Univ. Los Angeles, CA, United States)
Koumvakalis, A. (California Univ. Los Angeles, CA, United States)
Nicol, M. (California, University Los Angeles, United States)
Stevenson, D. J. (California Institute of Technology Pasadena, United States)