• Morphology: 
     d - depression

     b - bank

     cr - central raising 

     rd - ring depression 

     rr - ring raising
  • Meteoric substance: 
     f - iron (Fe)

     f-s - iron-stone

     s - stone

     (the letter without brackets - presence of spalls of a meteorite 

      in round brackets - yields of their fusion as circle and other formations 

      in asterisks - the sprayed meteoric substance 

      letter a - abnormal content of Ni, Co)
  • Impactites and breccies: 
     ou-outogenic breccies

     al-allogenic breccies

     z-euvites

     g- the fused glasses 

     t-noncrystallized melts

     im-impactites

     b-breccies
  • Diaplect materials and glasses: 
     bd-baddeliite

     bi-biotite

     gl-glauconite

     gr-garnet 

     gf-graphite

     i-ilmenite 

     ca-calcite

     qu-quartz 

     crd-cordierite

     l-leshatelerite

     mu-muscovite 

     p-piroxene

     fsh-field shpate

     am-amphibole

     sil-sillimanite

     sl-mica 

     stvr-stavrolite

     s-sfen

     t-tourmaline

     cl-clorite

     z-zircon

     ep-epidote

     d-diaplect glasses

     ps-plate systems

     i-isotropy of a quartz
  • Highbar phase: 
     cs-coesite

     st-stishovite

     ca-carbon

     m-meijorite

     ri-ringwoodite
  • Target type: 
     CR-crystalline

     SE-sedimentary 

     MI-mixed

     MS-metasedimentary
    Sources:
    1. Alekseev A. C., Petrenko V.E., Lyapidevskaya Z.A. (1991). An estimation of frequency of falling of celestial bodies onto the Earth, research into a possibility of their preliminary detection and change of trajectories // Report of SR, AS USSR, CC, Novosibirsk, 1991. 128p.
    2. Petrenko V.E. (1998). Geophysical properties of impact craters of the Earth - review, analisys, models, application. Proceedings of IVM MG SB RAS, Issue.6 - NCC Publisher, Novosibirsk ,1998, pp.119-157.