POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
MAGNETIC_POLARITY_ZONE
(* Local *)
SUBTYPE OF
(
technical_earth_feature
);
UNIQUE
si:
earth_feature
.identifier,
earth_feature
.unique_within;
END_ENTITY
; (* magnetic_polarity_zone *)
Generated on Tue Jul 10 19:38:05 2001
© Copyright 2001 POSC. All rights reserved.