000 00644cab a2200217 4500
001 WB2946-27
008 090401t1993 xxu||||| |||| 00| 0 eng d
035 _a(Sirsi) u87065
041 _aeng
245 _aGypsum subsidence to be studied
260 _c1993
350 _a0
490 _aNew Civil Engineer
_v2-9 December 1993, 4(1)
520 _aGypsum bedrock under Ripon, North Yorkshire is to be subject of a geotechnical study to produce a subsidence hazard map for the town.
650 _aGEOTECHNICAL STUDY
650 _aGYPSUM
650 _aSUBSIDENCE
690 _aMINING AND MINERALS
942 _n0
948 _c04/03/1997
999 _c54861
_d54861