Database structure

Table Description
datadxny Data dictionary, explaining tables and fields
citations Bibliographic references for information contained in the database.
sites Locations and descriptive information about phosphate occurrences.
units Generalized geologic units that could contain phosphate deposits.

Database field categories

Site identification 5
Geographic location 8
Site characteristics 19
Unit identification 2
Unit characteristics 6
Bibliographic references 2
Bibliographic reference 5
Metadata 21