AUTHOR=Guo Mingxian , Xiu Peng , Zhou Kuanbo TITLE=Studying the temporal bias of the steady-state approximation of 234Th-derived carbon export during phytoplankton blooms JOURNAL=Frontiers in Marine Science VOLUME=Volume 12 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2025.1554932 DOI=10.3389/fmars.2025.1554932 ISSN=2296-7745