BULL. GEOL. SOC. AM. 



VOL. 18, 1906, PL. 32 



y 



Figure 1. — Thk Center op the Salt Plaix 



The irregularities consist of solid rock-salt which has broken into pentagons, 

 8 to 12 feet in diameter, and has buckled up much in the same fashion as mud 

 which cracks in the sun 



Figure 2. — The Edge of the Salt Plain 



The salt of the old lake-bed of Lop-Nor at the foot of the 20-foot bluffs, on the 



north side of the lal£e 



SALINE SALT PLAIN OF OLD LOP-NOR 



" ( 



