000 01273cam a2200277 a 4500
001 HJA
003 CY-NiDCL
005 20201017150928.0
008 770805s1960 a f000 engd
040 _beng
_dΒιβλιοθήκη Τμήματος Γεωλογικής Επισκόπησης
_aCY-NiDCL
082 7 _a551
100 1 _aSmith, Robert L.
_4aut
_9137105
245 1 0 _aZones and zonal variations in welded ash flows /
_cby Robert L. Smith.
260 _aWashington:
_bU. S. Government Printing Office,
_c1960.
300 _aiii, 149-159 p. ;
_c29 cm.
_e+ 1 diagr.
490 0 _a;
_v354
490 0 _aShorter contributions to general geology
500 _aConduct diagram: Diagrams showing the zones of some ash-flow cooling units.
504 _aIncludes bibliographical references (p. 158-159).
520 _aA concept of zonation in ash flows based on degree of welding and type of crystallization.
650 4 _aIgnimbrite
_9133749
650 4 _aVolcanic ash, tuff, etc
_9137968
710 0 _aUnited States
_bGovernment Printing Office (U.S. G.P.O)
_4pbl
_9137807
911 _a000487
_e20100305
_j1960
_n551 SMI
_p1
_q21
_r0
_s0
942 _2ddc
_cBK
_h551 SMI
999 _c76269
_d76269