Showing 20 articles starting at article 161

< Previous 20 articles        Next 20 articles >

Categories: Archaeology: General, Geoscience: Volcanoes

Return to the site home page

     (via sciencedaily.com)     Original source 

Fossilized feces preserve evidence of ancient parasites that infected an aquatic predator over 200 million years ago, according to a new study.

     (via sciencedaily.com)     Original source 

Geoscientists have long thought that water -- along with shallow magma stored in Earth's crust -- drives volcanoes to erupt. Now, thanks to newly developed research tools, scientists have learned that gaseous carbon dioxide can trigger explosive eruptions.

     (via sciencedaily.com)     Original source 

New research has found evidence that a Roman road network spanned Devon and Cornwall and connected significant settlements with military forts across the two counties as well as wider Britannia.

     (via sciencedaily.com)     Original source 

Kama?ehuakanaloa (formerly L??ihi Seamount), a submarine Hawaiian volcano located about 20 miles off the south coast of the Big Island of Hawai'i, has erupted at least five times in the last 150 years, according to new research led by Earth scientists at the University of Hawai'i at M?noa.

     (via sciencedaily.com)     Original source 

Gems' unique elemental composition and atomic orientation act as a fingerprint, enabling researchers to uncover the stones' past, and with it, historical trade routes. Scientists now employ three modern spectroscopic techniques to rapidly analyze gems found in the Arabian-Nubian Shield and compare them with similar gems from around the world. They have identified elements that influence gems' color, differentiated stones found within and outside the region, and distinguished natural from synthetic.

     (via sciencedaily.com)     Original source 

Ancient pathogens that escape from melting permafrost have real potential to damage microbial communities and might potentially threaten human health, according to a new study.

     (via sciencedaily.com)     Original source 

An international team of linguists and geneticists has achieved a significant breakthrough in our understanding of the origins of Indo-European, a family of languages spoken by nearly half of the world's population.

     (via sciencedaily.com)     Original source 

DNA analysis of 34 individuals buried at Machu Picchu revealed that many traveled alone from throughout the Inca Empire.

     (via sciencedaily.com)     Original source 

The Neolithic burial site of Gurgy 'les Noisats' in France revealed two unprecedentedly large family trees which allowed a Franco-German team to explore the social organization of the 6,700-year-old community. Based on multiple lines of evidence, the team describes a close kin group which practiced monogamy and female exogamy, and experienced generally stable times.

     (via sciencedaily.com)     Original source 

Miyako Islands are home to various native species of snake and lizards. How these species came to call these islands home has long puzzled scientists. A group of researchers have compiled the latest geological and biological data, proposing that an island once facilitated migration between Okinawa and Miyako Islands.

     (via sciencedaily.com)     Original source 

For approximately 3,000 years, generations of green sea turtles have returned to the same seagrass meadows to eat. The fact that this stretches over many generations highlights the importance of protecting seagrass meadows along the coasts of North Africa.

     (via sciencedaily.com)     Original source 

Portable chemical imaging technology can reveal hidden details in ancient Egyptian paintings, according to new research.

     (via sciencedaily.com)     Original source 

Using computational methods informed by genetic data, researchers estimate that a random African American born between 1960 and 1965 is descended from, on average, 314 African and 51 European ancestors reaching back to 1619.

     (via sciencedaily.com)     Original source 

Researchers have discovered some of the largest early prehistoric stone tools in Britain.

     (via sciencedaily.com)     Original source 

Researchers have optimized a new technique to help forecast how volcanoes will behave, which could save lives and property around the world.

     (via sciencedaily.com)     Original source 

Scientists have wondered what happens to the organic and inorganic carbon that Earth's Pacific Plate carries with it as it slides into the planet's interior along the volcano-studded Ring of Fire. A new study suggests a notable amount of such subducted carbon returns to the atmosphere rather than traveling deep into Earth's mantle.

     (via sciencedaily.com)     Original source 

Volcanic disasters have been studied since Pompeii was buried in 79 A.D., leading the public to believe that scientists already know why, where, when and how long volcanoes will erupt. But a volcanologist said these fundamental questions remain a mystery.

     (via sciencedaily.com)     Original source 

The El Gigante rockshelter in western Honduras is among only a handful of archaeological sites in the Americas that contain well-preserved botanical remains spanning the last 11,000 years. Considered one of the most important archaeological sites discovered in Central America in the last 40 years, El Gigante was recently nominated as a UNESCO World Heritage site.

     (via sciencedaily.com)     Original source 

Researchers have found that the cooling effect that volcanic eruptions have on Earth's surface temperature is likely underestimated by a factor of two, and potentially as much as a factor of four, in standard climate projections.

     (via sciencedaily.com)     Original source 

The genome of a glass sponge species suggests that silica skeletons evolved independently in several groups of sponges.