The Altyn Tagh fault, like the Karakorum Fault, is counted as a major boundary of the Tibetan Plateau, kinematically, rheologically, and topographically. The rate of slip accumulation on this feature is a critical piece of evidence in determining the quality of regional dynamics.
Bendick, R., R. Bilham, J. Freymueller, K. Larson, and G. Yin (2000) Geodetic evidence for a low slip rate on the Altyn Tagh fault system, Nature, 404: 69-72. PDF
GPS metadata
RINEX data from expeditions in the P.R.C. is not publically available.