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Categories: Archaeology: General, Geoscience: Volcanoes

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Geoscience: Volcanoes
Published

Volcanic super eruptions are millions of years in the making -- followed by swift surge      (via sciencedaily.com) 

Researchers have discovered that super-eruptions occur when huge accumulations of magma deep in the Earth's crust, formed over millions of years, move rapidly to the surface disrupting pre-existing rock.

Geoscience: Volcanoes
Published

Cloud study demystifies impact of aerosols      (via sciencedaily.com) 

Aerosol particles in the atmosphere have a bigger impact on cloud cover -- but less effect on cloud brightness -- than previously thought, new research shows.

Archaeology: General
Published

Octopus lures from the Mariana Islands found to be oldest in the world      (via sciencedaily.com) 

An archaeological study has determined that cowrie-shell artifacts found throughout the Mariana Islands were lures used for hunting octopuses and that the devices, similar versions of which have been found on islands across the Pacific, are the oldest known artifacts of their kind in the world.

Archaeology: General
Published

Oldest DNA from domesticated American horse lends credence to shipwreck folklore      (via sciencedaily.com) 

Feral horses have roamed freely across the island of Assateague off the coast of Maryland and Virginia for hundreds of years, but exactly how they got there has remained a mystery. In a new study, ancient DNA extracted from a 16th century cow tooth from one of Spain's first Caribbean colonies turns out to be from a horse. Analysis of the DNA suggest that old folk tales claiming that horses were marooned on Assateague following the shipwreck of a Spanish galleon are likely more fact than fiction.

Anthropology: Early Humans Archaeology: General
Published

Ancient DNA clarifies the early history of American colonial horses      (via sciencedaily.com) 

A newly identified 16th century horse specimen is among the oldest domestic horses from the Americas known to date, and its DNA helps clarify the history of horses in the Western Hemisphere, according to a new study.

Anthropology: Cultures Archaeology: General
Published

High-status Danish Vikings wore exotic beaver furs      (via sciencedaily.com) 

Beaver fur was a symbol of wealth and an important trade item in 10th Century Denmark, according to a new study.

Archaeology: General
Published

Floors in ancient Greek luxury villa were laid with recycled glass      (via sciencedaily.com)     Original source 

Several 1700 years old decorative mosaic floors have been excavated in a luxury villa located in present-day Turkey, once overlooking the Mediterranean Sea. New chemical analyzes reveal that recycled glass was used in laying the mosaic floors.

Geoscience: Volcanoes
Published

New method can improve explosion detection      (via sciencedaily.com) 

Computers can be trained to better detect distant nuclear detonations, chemical blasts and volcano eruptions by learning from artificial explosion signals, according to a new method.

Archaeology: General
Published

In search of the lost city of Natounia      (via sciencedaily.com) 

The mountain fortress of Rabana-Merquly in modern Iraqi Kurdistan was one of the major regional centers of the Parthian Empire, which extended over parts of Iran and Mesopotamia approximately 2,000 years ago. The researchers studied the remains of the fortress.

Anthropology: Cultures Anthropology: Early Humans Archaeology: General
Published

DNA from ancient population in Southern China suggests Native Americans' East Asian roots      (via sciencedaily.com) 

For the first time, researchers successfully sequenced the genome of ancient human fossils from the Late Pleistocene in southern China. The data suggests that the mysterious hominin belonged to an extinct maternal branch of modern humans that might have contributed to the origin of Native Americans.

Geoscience: Earthquakes Geoscience: Volcanoes
Published

Shockwave caused by Tonga underwater eruption may help scientists predict future tsunami      (via sciencedaily.com) 

Using data from the eruption of the underwater volcano near Tonga in 2022, researchers used disturbances in Earth's upper atmosphere to track the airwaves that cause tsunami. Their findings may lead to speedier predictions of these giant waves.

Archaeology: General
Published

Rare deep-sea brine pools discovered in Red Sea      (via sciencedaily.com) 

Researchers recently discovered rare deep-sea brine pools in the Gulf of Aqaba, a northern extension to the Red Sea. These salty underwater lakes hold secrets into the way oceans on Earth formed millions of years ago, and offer clues to life on other planets.

Archaeology: General
Published

Unlocking the secrets of the ancient coastal Maya      (via sciencedaily.com) 

After more than a decade of research, scientists share what they have learned about the people who lived on a stretch of coastline in Quintana Roo Mexico over a span of 3,000 years.

Geoscience: Volcanoes
Published

Fiber optic sensing detects tremor from Icelandic subglacial volcano      (via sciencedaily.com) 

Researchers used a fiber optic cable on the ice cap of an Icelandic subglacial volcano to detect low-frequency volcanic tremor, suggesting this technology could be useful in monitoring other ice-covered volcano systems.

Geoscience: Volcanoes
Published

Volcano's eruption will help scientists plot weather, climate      (via sciencedaily.com) 

As it captivated people around the world, the January eruption of the Hunga Tonga-Hunga Ha'apai volcano gave scientists a once-in-a-lifetime chance to study how the atmosphere works, unlocking keys to better predict the weather and changing climate.

Archaeology: General
Published

Study points to Armenian origins of ancient crop with aviation biofuel potential      (via sciencedaily.com) 

Camelina, an oilseed plant grown in modern-day Ukraine, may have been a more important and widespread crop than previously thought. New findings could inform breeding programs to improve this crop for biofuels applications.

Geoscience: Volcanoes
Published

Tonga volcano eruption among the most powerful ever observed, triggering atmospheric gravity waves that reached the edge of space      (via sciencedaily.com) 

The eruption of the Hunga Tonga-Hunga Ha'apai submarine volcano in January 2022 was one of the most explosive volcanic events of the modern era, a new study has confirmed.

Archaeology: General
Published

Underwater jars reveal Roman period winemaking practices      (via sciencedaily.com) 

Winemaking practices in coastal Italy during the Roman period involved using native grapes for making wine in jars waterproofed with imported tar pitch, according to a new study.

Geoscience: Volcanoes
Published

Iceland volcano eruption opens a rare window into the Earth beneath our feet      (via sciencedaily.com) 

The recent Fagradalsfjall eruption in the southwest of Iceland has enthralled the whole world, including nature lovers and scientists alike. The eruption was especially important as it provided geologists with a unique opportunity to study magmas that were accumulated in a deep crustal magma reservoir but ultimately derived from the Earth's mantle (below 20 km).

Anthropology: Early Humans Archaeology: General
Published

Ice Age wolf DNA reveals dogs trace ancestry to two separate wolf populations      (via sciencedaily.com) 

An international group of geneticists and archaeologists have found that the ancestry of dogs can be traced to at least two populations of ancient wolves. The work moves us a step closer to uncovering the mystery of where dogs underwent domestication, one of the biggest unanswered questions about human prehistory.