Geological dictionaries - Critical elements of every geological database
British Geological Survey (BGS) staff have developed an extensive range of dictionaries to support database development both in-house and for other organisations. Four types of dictionary have been identified, namely unstructured, structured, sequential and multi-dimensional. The nature of and problems associated with, these various types of dictionary are described and two examples of multi-dimensional dictionaries (Lithostratigraphical Lexicon and Chronostratigraphical Index) are described in more detail. (C) 1997 NERC Published by Elsevier Science Ltd.
dictionary databases data domain mapping