Lost Continent?
Nope, they have not found Atlantis. Nor is anyone lending any credibility to Lemuria.
In a paper published Feb. 24th, in Nature Geoscience a team of researchers published their findings of evidence of Zircon in the sands around the Island nation of Mauritius in the Indian Ocean, east of Madagascar.
The Laccadive–Chagos Ridge and Southern Mascarene Plateau in the north-central and western Indian Ocean, respectively, are thought to be volcanic chains formed above the Réunion mantle plume over the past 65.5 million years. Here we use U–Pb dating to analyse the ages of zircon xenocrysts found within young lavas on the island of Mauritius, part of the Southern Mascarene Plateau. We find that the zircons are either Palaeoproterozoic (more than 1,971 million years old) or Neoproterozoic (between 660 and 840 million years old). We propose that the zircons were assimilated from ancient fragments of continental lithosphere beneath Mauritius, and were brought to the surface by plume-related lavas. We use gravity data inversion to map crustal thickness and find that Mauritius forms part of a contiguous block of anomalously thick crust that extends in an arc northwards to the Seychelles. Using plate tectonic reconstructions, we show that Mauritius and the adjacent Mascarene Plateau may overlie a Precambrian microcontinent that we call Mauritia. On the basis of reinterpretation of marine geophysical data4, we propose that Mauritia was separated from Madagascar and fragmented into a ribbon-like configuration by a series of mid-ocean ridge jumps during the opening of the Mascarene ocean basin between 83.5 and 61 million years ago. We suggest that the plume-related magmatic deposits have since covered Mauritia and potentially other continental fragments.
Could be it is just Hollow Earth Zircon seeping through, or if you happen to be a believer in Lemuria, here is a piece of actual science to hold out as hope there ever was such a place. Sorry, Atlantis, this really does jack for your existence but hey, if there can be one lost continent there can be others, am I right?
Henry Paterson
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