Tagasi otsingusse
Rebelo et al., 2025

Rhodoliths and trace fossils record stabilization of a fan-delta system: An example from the Mio-Pliocene deposits of Gran Canaria (Canary Islands, Spain)

Rebelo, A. C., Uchman, A., Johnson, M. E., Melo, C. S., Vegas, J., Galindo, I., Mayoral, E. J., Santos, A., González-Rodríguez, A., Afonso-Carrillo, J., Ávila, S. P., Martín-González, E.
DOI
DOI10.1016/j.jop.2025.100266
Aasta2025
AjakiriJournal of Palaeogeography
Leheküljed100266
Tüüpartikkel ajakirjas
Keelinglise
Id51624

Abstrakt

Fan-delta systems are geomorphological structures and sedimentary records seldom preserved on oceanic volcanic islands. The generally coarse-grained deposits belonging to the Las Palmas Detritic Formation (Mio-Pliocene) at the Las Rehoyas section, NE part of Gran Canaria Island (Canary Islands, Spain), contain abundant but relatively small rhodoliths, non-nucleated, in partly bioturbated (Skolithos ichnofacies) sand-dominated strata. This section consists of four sedimentary units deposited in a fan-delta system that developed on a marine platform in the northeastern part of the island. The system was flooded during the late Miocene to early Pliocene, a non-eruptive phase on Gran Canaria Island. Stabilization of the fan delta due to a relative rise in sea level enabled colonization by burrowing organisms and the development of rhodoliths, which were redeposited by storms from the lower shoreface–offshore to the foreshore–middle shoreface environment.

Viimati muudetud: 30.6.2025
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