A recent paper in Reviews of Geophysics revealed new insights into the flight patterns of solid and molten debris flung out of volcanos during explosive eruptions, writes Jacopo Taddeucci in Eos:
“When volcanos erupt they can spew out a range of substances from viscous lava and hot gas to ash clouds and rock fragments, each of which behave in different ways. A recent review article published in Reviews of Geophysics focused on the larger fragments of solid and molten material ejected from volcanos, and described an innovative new study of the flight paths of these projectiles.”
A major academic paper has been published online in Nature, the top scientific journal in the world, which solves many questions of the origins of Pacific peoples, including the people of Vanuatu.
The study, titled ‘Genomic insights into the peopling of the Southwest Pacific‘ (paywall), is based on a revolutionary study of ancient DNA from the Lapita skeletons from Teouma found during the 2004 to 2010 archaeological dig there. There are 31 authors to the paper, led by Pontus Skoglund of Harvard University.
It turns out the foundation population of Vanuatu probably came directly from Taiwan or the northern Philippines, bypassing New Guinea and the Solomon Islands without mixing with the Australo-Papuan people already living there.
All Ni-Vanuatu descend from these first migrants and their later intermarriage with mixed Asian-Papuan groups who came down from the New Guinea and Solomon Islands. There are Asian Lapita genes in every Ni-Vanuatu, the mark of their earliest ancestors.
The original archaeological research carried out at Teouma was in response to damage to the site from soil quarrying for the prawn farm. The bulldozers had revealed skeletons and broken Lapita pots dating to almost 3,000 years ago. Read the rest of this entry »
Regardez cette nouvelle vidéo de L’Institut de recherche pour le développement (IRD) Nouvelle-Calédonie sur les zones marines tabous au Vanuatu.