Birth and death of seamounts in the Panthalassa Ocean: Late Triassic to Early Jurassic sedimentary record at Mount Sambosan, Shikoku, Southwest Japan

Mid-oceanic shallow water carbonate platforms are usually characterized by long-term deposition due to the continuous subsidence of the underlying volcanic edifices and thus provide good records of biotic evolution and environmental changes. However, since most of the pre-Jurassic oceanic crust has been subducted, very few remains of Triassic atoll-like platforms are preserved in the Circum-Pacific region. Therefore, it is crucial to precisely...