Dear Colleagues, Elements: An International Magazine for Geochemistry, Mineralogy, and Petrology is soliciting thematic proposals for its 2027 publication lineup. The next submission deadline is September 25, 2026. Submission guidelines and a proposal template can be found at https://elementsmagazine.org/publish-in-elements/. A thematic proposal is a short document that includes: * Proposed issue title * Proposed guest editor name(s) and full contact information * Overall scope (1–2 paragraphs describing the topic and why it is important to cover in Elements) * Proposed articles (1 introduction + 5 chapters) with brief yet detailed descriptions, proposed authors, and their institutions. Please note that author confirmation is not required for proposal submission. * Summary of related coverage previously published elsewhere, if applicable Questions? Seeking feedback on a draft proposal? Contact editor@elementsmagazine.org<mailto:editor@elementsmagazine.org>. We thank you in advance for your initiative! Best regards, Carol Frost Principal Editor for Geochemistry