Lake sediment is helping scientists resolve a decades-long historical mystery.
archaeology
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Settlement of Rapa Nui May Have Been Doomed by a Dearth of Dust
Rapa Nui and Hawai‘i offer a tale of two island settlements: Hawai‘i was close enough to Asia for continental dust to help replenish soil nutrients depleted by agriculture. Rapa Nui wasn’t.
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American Legacy Paleosecular Variation Data Unlocked
The geomagnetic field changes regionally on centennial time scales. A recent study unlocks three historical archives from the “Four Corners” region (southwest USA) reconciling previous discrepancies.
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Roman-Era Millstone and Mixer Makers Knew Their Rocks
The geochemistry of basalt millstones and mixers from the city of Volubilis suggests a local origin—and that rocks were picked for specific purposes, from crushing olives to mixing dough.
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La arquitectura china evolucionó con los cambios en las nevadas
El diseño de los techos en el norte de China cambió a lo largo de siglos en respuesta a eventos de nieve extremos, sugiere nueva investigación.
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Greener, Wetter Arabia Was a Crossroads of Early Human Migration
Hand axes, hippo bones, and a stack of ancient lake beds show that arid Arabia experienced intervals of humid weather, spurring pulses of human migration over the past 400,000 years.
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Chinese Architecture Evolved with Changes in Snowfall
Roof design in northern China changed over centuries in response to extreme snow events, new research suggests.
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Ancient Flint Tools Reveal Earth’s Changing Magnetic Field
Stone tools may provide data on paleomagnetism that are out of reach for other markers, such as prehistoric pottery.
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Cosmological Tool Helps Archaeologists Map Earthly Tombs
A new study employs a method originally developed to help map stars and galaxies to describe how ancient tombs are clustered. The research helps archaeologists studying remote or inaccessible sites.
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Food Security Lessons from the Vikings
Scandinavian societies of the first millennium adapted their farming practices to volcano-driven climate changes.