IEDA2 represents a unique collaborative data infrastructure of 3 complementary data systems: EarthChem, LEPR/ traceDs (Library of Experimental Phase Relations), and the System for Earth Sample Registration (SESAR) that jointly support researchers in the Geosciences. IEDA2 helps researchers share and access sample data following the FAIR data principles, and ensures open, reproducible, and transparent science practices. IEDA2 provides a framework for data publication; data synthesis; human- and machine-readable data access that facilitates data mining and computational analysis; and a digital environment that links and integrates physical samples with the modern digital research data ecosystem. The vision for IEDA2 is to advance data-driven and computational methodologies in geochemistry, petrology, and volcanology, and to optimize (re)use and analysis of data, inform peer review, and guide future research directions.
IEDA2 provides services for FAIR geochemical, geochronological, mineralogical, and petrological data with the EarthChem Library (ECL) and FAIR samples with the System for Earth Sample Registration SESAR. ECL and SESAR follow the TRUST principles for repositories, with services for online data submission, data templates, validation of data and metadata completeness, accuracy, and compliance; persistent identification (DOI, IGSN), moratorium periods, human- and machine-readable search and access interfaces, and long-term archiving. With renewed funding from the US NSF, IEDA2 will over the next 5 years focus on enabling user contributions to data synthesis; networking sample data resources; and enhancing usability while educating and engaging the ‘Next Generation’ of users and fostering a culture of collaboration and partnerships in the national and international Geoscience data space.