8Vreland R H, Rosenzweig W D, Powers D W. 2000. Isolation of a 250 million-year- old halotolerant bacterium from a primary salt crystal. Nature, 407: 897-900.
9Fish S A, Spepherd T J, McGenity T I, Grant W D. 2002. Reeorery of ribosomal RNA gene fragments from ancient balite. Nature, 417:432-436.
10Wang Alian, Haskin L A, Squyres S W, Jolliff B L, Crumpler L, Gellert R, Schrder C, Herkenhoff K, Hurowitz J, Tosca N J, Farrand W H, Anderson R, Knudson A T. 2006. Sulfate deposition in subsurface regolith in Gusev crater, Mars. Journal of Geophysical Research, 111 : 1-19.
7Wei-Peng Lin and Zhen-Long Zou ( Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing 100012,CAS-Peking University Joint Beijing Astrophysical Center, Beijing 100871,Shanghai Astronomical Observatory,the Partner Group of MPI fur Astrop.Origin and Properties of Strong MgII Quasar Absorption Line Systems[J].Chinese Journal of Astronomy and Astrophysics,2001,1(1):21-28.