Database structure

Table Description
dd Data dictionary provided as a download from the repository.
geochem Sample identifiers, characteristics, processing information, and results of chemical analysis.
limits Characteristics of the analytical methods, including limits of detection.
locations Geographic locations of the samples, duplicates information found in the table geochem.
qaqc Analytical results obtained from geochemical reference materials using the same procedures and instruments as were used for the field-collected samples.
focus Associative table relating geochemical sample locations to Earth MRI phase 3 focus areas.

Database field categories

Sample identification 10
Processing information 15
Geographic location 13
Site characteristics 1
Sample characteristics 26
Chemical analysis 265
Metadata 15