Paleotides of the Chilean Inland Sea

Master Thesis subject (30 ECTS)
The inland sea formed between Chiloe island and mainland Chile is characterised by its strong tides compared to the rest of the Chilean coast. The large tidal range occurs due to resonance of the semidiurnal tide within the Inland Sea, a result of its shape and water depth. At the time of the Last Glacial Maximum (LGM) the global sea level was significantly lower than present. Because a change in the water depth within the Inland Sea changes the resonant frequency, as a result the tides were probably of much lower amplitude during the LGM. We might expect to see these changes in the structure of coastal marine communities preserved in the fossil record. This project involves performing numerical simulations of the tides of the Inland Sea from the LGM to the present, and then using this information to interpret changes seen in the fossil record.
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Reference Number: RP-47671