000 00602nam a2200157 4500
001 0000003779
008 121119 eng
040 _aJMG HQ
090 0 0 _a555
_bOKK
100 1 _aOkkerman, J. A.
245 1 0 _aDescription of exposures
_cJ. A. Okkerman
260 _c[199?]
300 _a7 p.
_bill.,maps
_c30 cm
520 _aThe information that can be gained from the description of exposures depends on many factors; knowledge of structures, textures and sediment types, time, weather conditions, purpose of description and also on the way the description itself is done
650 0 _aGeology investigation
999 _c20207
_d20207