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DIC_GEOCHRON (410 rows)
Dictionary table holding codes, names and radiometric ages of geochronological intervals that can be used in BGS databases. It is this table that acts as the domain constraint on corporate data tables.


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Row CODE DESCRIPTION RANK_CODE TRANSLATION MIN_AGE MAX_AGE MIN_AGE_TYPE_CODE MIN_AGE_PLUS_OR_MINUS MAX_AGE_TYPE_CODE MAX_AGE_PLUS_OR_MINUS COMMENTS STATUS USER_ENTERED DATE_ENTERED USER_UPDATED DATE_UPDATED
311 QMIS041  WEICHSELIAN  AGE  Weichselian Age  .0117  .116  DEFINITE  QUAT  Contemporaneous with Devensian; see RR/04/04.  TMCM  22-SEP-09     
312 QMIS042  EEMIAN  AGE  Eemian Age  .116  .126  QUAT  DEFINITE  Contemporaneous with Ipswichian; MIS 5e; see RR/04/04.  TMCM  22-SEP-09     
313 QMIS043  HOLSTEINIAN  AGE  Holsteinian Age  .362  .423  QUAT  QUAT  Contemporaneous with Hoxnian; MIS 11; see RR/04/04.  TMCM  22-SEP-09     
314 QMIS044  ELSTERIAN  AGE  Elsterian Age  .423  .48  QUAT  QUAT  Contemporaneous with Anglian; MIS 12; see RR/04/04.  TMCM  22-SEP-09     
315 QMIS045  CROMERIAN COMPLEX  AGE  Cromerian Complex Age  .48  .8  QUAT  INTERP  Contemporaneous with Cromerian; MIS 13-21; RR/04/04.  TMCM  22-SEP-09     
316 QMIS046  BAVELIAN  AGE  Bavelian Age  .8  INTERP  INTERP  See RR/04/04.  TMCM  22-SEP-09     
317 QMIS047  WAALIAN  AGE  Waalian Age  1.2  1.4  INTERP  INTERP  See RR/04/04.  TMCM  22-SEP-09     
318 QMIS048  EBURONIAN  AGE  Eburonian Age  1.4  1.6  INTERP  INTERP  See RR/04/04.  TMCM  22-SEP-09     
319 QMIS049  TIGLIAN  AGE  Tiglian Age  1.6  2.3  INTERP  INTERP  See RR/04/04.  TMCM  22-SEP-09     
320 QMIS050  TIGLIAN B  SUB-AGE  Tiglian B Sub-age  2.1  2.2  INTERP  INTERP  Contemporaneous with Thurnian; see RR/04/04.  TMCM  22-SEP-09     
321 QMIS051  TIGLIAN A  SUB-AGE  Tiglian A Sub-age  2.2  2.3  INTERP  INTERP  Contemporaneous with Ludhamian; see RR/04/04.  TMCM  22-SEP-09     
322 QMIS052  PRAETIGLIAN  AGE  Praetiglian Age  2.3  2.4  INTERP  INTERP  MIS 96-100; see RR/04/04.  TMCM  22-SEP-09     
323 QMIS053  REUVERIAN C  SUB-AGE  Reuverian C Sub-age  2.4  2.588  INTERP  DEFINITE  MIS 103; see RR/04/04.  TMCM  22-SEP-09     
324 QMIS054  TERTIARY  SUB-ERA  Tertiary Sub-era  2.588  65.5  DEFINITE  DEFINITE  .3    TMCM  22-SEP-09     
325 QMIS055  NEOGENE  PERIOD  Neogene Period  2.588  23.03  DEFINITE  DEFINITE    TMCM  22-SEP-09     
326 QMIS056  PLIOCENE  EPOCH  Pliocene Epoch  2.588  5.322  DEFINITE  DEFINITE    TMCM  22-SEP-09     
327 QMIS057  LATE PLIOCENE  SUB-EPOCH  Late Pliocene Sub-epoch  2.588  3.6  DEFINITE  DEFINITE    TMCM  22-SEP-09     
328 QMIS058  PIACENZIAN  AGE  Piacenzian Age  2.588  3.6  DEFINITE  DEFINITE  Also known as Waltonian Age.  TMCM  22-SEP-09     
329 QMIS059  WALTONIAN  AGE  Waltonian Age  2.588  3.6  DEFINITE  DEFINITE  Not on 2009 BGS Geological Time Chart; use NC Piacenzian.  TMCM  22-SEP-09     
330 QMIS060  EARLY PLIOCENE  SUB-EPOCH  Early Pliocene Sub-epoch  3.6  5.322  DEFINITE  DEFINITE    TMCM  22-SEP-09     

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