Integrated, Coordinated, Open, and Networked (ICON) science aims to enhance synthesis, increase resource efficiency, and create transferable knowledge. This article belongs to a collection of commentaries (Goldman et al., 2021) spanning geoscience on the state and future of Integrated, Coordinated, Open, and Networked (ICON) science. ICON-VGP is described here in the context of the core fields of geochemistry, volcanology and petrology. An important aspect to acknowledge here is that Volcanology, Geochemistry, Petrology (VGP) is an extremely broad field and encompasses both application areas and fundamental research questions that span investigations of mid-ocean ridge volcanoes to the creation of mountains. Integration within (VGP), and working across interdisciplinary research boundaries, have therefore emerged in response to specific applications and research goals. As an example, volcanology is strongly integrated with traditional subdisciplines (geology/ geochemistry/petrology) and allied fields (e.g., seismology, geodesy). However, traditional and structural definitions of volcanology and research modes hinder substantive integration, and integration is largely on the level of individual systems/specific challenges and not at a broader scale. The need for moving beyond traditional disciplinary boundaries is only now being recognized and these crossovers are being explicitly defined as volcanohydrology, archeological volcanology, etc. (e.g., Elson & Ort, 2018).