tbl_tephra_refs

0 rows


Description

Contains bibliographic information related to the identification and description of tephra layers (volcanic ash deposits).

Columns

Column Type Size Nulls Auto Children Parents Comments
tephra_ref_id int4 10 √

Primary key (automatically incremented).
biblio_id int4 10
tbl_biblio.biblio_id fk_tephra_refs_biblio_id R

Specifies the publication that describes or mentions the tephra layer.
date_updated timestamptz 35,6 √
tephra_id int4 10
tbl_tephras.tephra_id fk_tephra_refs_tephra_id R

Specifies the specific tephra layer.

Indexes

Constraint Name Type Sort Column(s)
tbl_tephra_refs_pkey Primary key Asc tephra_ref_id

Relationships

Close relationships within degrees of separation