The ‘mind-blowing’ sea floor changes caused by Tongan volcanic eruption
#science #geology #Tonga #volcano #HungaTonga #HungaTongaHungaHaapai
A team of scientists — with the help of an uncrewed boat remotely controlled from the UK – join forces to produce one of the clearest pictures to date of what took place underneath the water as an enormous volcano erupted near the Tongan mainland.
@knittingknots @Some_Emo_Chick @geoscience
There seem to be two areas off the flank of the volcano that developed new large-scale sediment wave trains during the eruption and pyroclastic flows. They formed at the base of the slope, and at the pre-existing channel mouths, suggesting they formed due to supercritical flows. They look, to me, to be erosional and depositional cyclic steps and antidunes. I’ve worked with these before: https://www.researchgate.net/publication/316184378_Morphodynamics_of_supercritical_turbidity_currents_in_the_channel-lobe_transition_zone #geology #geoscience #turbidites
Frankie ✅
Sue Stone
Tim Demko
Mieke Siemons