tephras

138 rows


Description

Tephras lookup table. This table stores recognized tephras with established ages. Referenced by the Tephrachronology table.

Columns

Column Type Size Nulls Auto Default Children Parents Comments
tephraid serial 10 nextval('ndb.seq_tephras_tephraid'::regclass)
eventid int4 10 null
events.eventid fk_tephras_eventsC
analysisunitid int4 10 null
analysisunits.analysisunitid fk_tephras_analysisunitsC
notes text 2147483647 null
recdatecreated timestamp 22 timezone('UTC'::text, now())
recdatemodified timestamp 22 null

Indexes

Constraint Name Type Sort Column(s)
tephras_pkey Primary key Asc tephraid

Relationships