About the Data

PetDB contains geochemical data from sub-oceanic igneous and metamorphic rocks generated at mid-ocean ridges including back-arc basins, young seamounts, and old oceanic crust compiled primarily from the published literature.

Analytical Data

PetDB accommodates the full range of analytical values, from major and trace element concentrations to radiogenic and stable isotope ratios, in volcanic glasses, whole rock samples, minerals and melt inclusions.

Metadata

PetDB contains abundant information about the analytical procedure and data quality (method, precision, standard measurements), and a wide range of contextual information about the samples (rock type, texture, age, modal composition, alteration), sample locations (geospatial coordinates, location names, tectonic setting) sampling process (technique, date, cruise), analytical procedures and the source of the data (references, authors).

Current Data Holdings

References:  1,214
Samples:  41,802
Bulk rocks: 462,499
Volcanic glasses:  357,120
Mineral values:  203,036
Melt inclusions:  19,211
Total individual values:  1,061,284
Number of stations: 11,897

Data Search

PetDB's online interactive search tool allows you to create customized datasets by building queries that extract from the database any combination of chemical data.
Go to Search Data
For help with the search tools, click here.