Feeds:
Posts
Comments

Archive for the ‘Uncategorized’ Category

Source: Possible Pomegranate Seeds Found in Ancient Tomb – Archaeology Magazine

Read Full Post »

photo: Prof Gary Lee Todd

photo: Prof Gary Lee Todd

 

Original Article:

arstechnica.co.uk

ByCATHLEEN O’GRADY (US) –

 

Bones and burial grounds point male children getting better-quality food.

Around 7,000 years ago in China’s Central Plains, the Yangshao culture began to flourish along the Yellow River. It was another example of the same widespread Neolithic culture that was also emerging in Europe around the time, with new developments in pottery and agriculture. In China, it dominated the region for approximately 2,000 years.

Yangshao remains have offered a team of international researchers insight into an interesting question: did gender differences change alongside agricultural practices? They argue that gender inequality emerged along with the new crops among the Yangshao. The archaeological data has some interesting signs, but it’s possible that the researchers are overstating their case: the only evidence they have is of inequality in people’s diets, which doesn’t tell us much about the structure of inequality of societies.

Millet cereals were domesticated in the region as early as 10,000 years ago and were the primary crop of Yangshao cultures. Wheat, barley, and soybeans were introduced to the region after the end of Yangshao, around 4,000 years ago, although archaeological traces of them remain low for centuries. According to historical records, they were thought to be inferior foods, suitable only for protecting the poor against famine. That only changed around 2,000 years ago, when improved technological methods made it easier to refine them.

Agricultural changes aren’t only reflected in artifacts; they show up in excavated bones, too. Millet uses a type of photosynthesis that differs from the vast majority of plants, and it’s the only domesticated plant in Early China to use this type of photosynthesis. The result of this is that the carbon signature in the bones of people who ate primarily millet looks different from that of people who ate other plants. Nitrogen traces in bones can point to the quantity of animal products in an individual’s diet.

The researchers compared Yangshao bones with remains from the Bronze Age Eastern Zhou Dynasty, which lasted from 771 to 221 BC. In the Eastern Zhou bones, they found evidence that men and women were eating different diets: men’s bones had evidence of higher consumption of animal products and millet, while women’s bones showed evidence of higher consumption of the more recent (and scorned) crops of wheat, barley, and soy. The Yangshao bones, on the other hand, generally didn’t show a significant difference, with the exception of one of the five sites studied. This suggests that “meals were no longer shared at the household level during Eastern Zhou,” the authors write.

On its own, this is not evidence of a bias favoring males. There could be cultural reasons for a gender-based split in diet that weren’t actively bad for women—although the fact that women were eating more of the food that was considered low quality is a bit telling.

But other strands of evidence corroborate the inequality story: women’s bones from Eastern Zhou, but not Yangshao, showed more signs of childhood malnutrition, and size differences between the sexes increased from Yangshao to Eastern Zhou. Both of these signs indicate that male children had better quality food, pointing to greater parental investment in male children. And female graves in Eastern Zhou had fewer burial items and were less likely to have a coffin than male graves, while again, Yangshao graves were more egalitarian.

It’s an interesting result, but it’s always a mistake to draw too many parallels with modern society from archaeological research. It’s also not clear that this is really evidence of the first emergence of gender inequality in this region of China.

It is evidence of a massive cultural change in how the genders related to each other, certainly. But food-based inequality isn’t the only kind of gender inequality that a society might practice—there are plenty of inarguably patriarchal modern societies where families eat meals together. It’s entirely possible that Yangshao did have inequality, but that it took a different shape and would have left a different kind of archaeological presence.

An open question is how the change in gender practices and agriculture are interwoven. Did the change in agriculture itself lead to the change in gender norms? The causal story is likely to be complicated, and the authors of the paper steer clear of suggesting that one led to the other, but the relationship between them is something that future research can hopefully illuminate.

PNAS, 2016. DOI: 10.1073/pnas.1611742114 (About DOIs).

This post originated on Ars Technica

Read Full Post »

Researchers comb over the ancient Roman containers called amphorae. (Photo: Credit: Laure Marest-Caffey)

Researchers comb over the ancient Roman containers called amphorae. (Photo: Credit: Laure Marest-Caffey)

 

Original Article:

usatoday.com

When workers began digging out the Roman cities torched by Mount Vesuvius, the exquisite wall paintings, sumptuous villas and golden jewelry they found quickly grabbed the spotlight. But archaeologists are now looking to a less glamorous feature of these cities: the garbage.

Over the last few years, a team of researchers has taken a systematic look at street trash, buckets and even storage containers from Pompeii and other ruins to understand the relationship between ordinary Romans and their stuff. The extraordinary preservation of objects by volcanic debris allows for extraordinary insights into humdrum possessions, the researchers say.

“We’re actually starting to see evidence of people’s choices and how they dealt with their objects,” says Caroline Cheung, a graduate student at the University of California, Berkeley, involved in the project. “We get a sense of how people were using them, how they were storing them, whether they were throwing them away or keeping them.”

Modest farmhouses and swanky country houses alike were entombed by the 79 AD eruption of Vesuvius, which killed an untold number of the 20,000-plus people living in Pompeii and the surrounding area. But the deadly volcanic flows also preserved artifacts with unprecedented fidelity.

The humble objects left behind show that people didn’t necessarily go easy on their possessions, even though the articles of everyday life were often purchased rather than homemade.

Take the objects discovered at a farmhouse near Pompeii, where the cooking range was so heaped with ashes that it’s clear “they just basically didn’t take out the garbage,” says Theodore Peña of the University of California, Berkeley. “Like frat boys.” Peña leads the project, which is taking a close look at artifacts found during previous excavations.

In a storeroom of the kitchen, shelves held gear that “had the hell beaten out of it,” Peña says. There was a bronze bucket full of dents, perhaps where it had banged into the side of the well just outside the farmhouse. There were pots with bits of the rims broken off and a casserole so badly cracked that it was close to falling apart, but people had kept them to use again.

At a complex near Pompeii that seems to have been a wine-bottling facility, there were more than 1,000 amphorae, ceramic vessels that were the shipping containers of their day. Many were patched and waiting to be refilled, presumably with wine, Peña says.

When the researchers delved into street rubbish, they expected to find lots of broken glass, used for perfume bottles and other common items. Instead they found almost none, a sign that even shards of glass were being collected and made into something else.

It’s too early to say whether the people of Pompeii were thrifty adherents of recycling. But the indications so far are that “ceramics and other types of objects were being reused, repurposed or at least repaired,” Cheung says, in contrast to today’s “throwaway society. … If I break a cheap mug, I probably throw it away. I don’t even think about repairing it.”

The research is “very exciting,” says archaeologist Leigh Anne Lieberman, a graduate student at Princeton University who also studies items from the region but was not involved with Peña’s research. The analysis, she says, “allows us to ask questions we didn’t even know we had.”

The analysis also summons the long-gone Romans who once held the same items now being scrutinized nearly 2,000 years later. “Sometimes you look at a pot or lamp and see fingerprints of the person who made the object,” Cheung says. “That’s a tangible piece of the past that connects you to antiquity.”

Read Full Post »

A statue representing "iceman" mummy Oetzi, discovered on 1991 in the Italian Schnal Valley glacier, displayed at the Archaeological Museum of Bolzano, Italy on February 28, 2011

A statue representing “iceman” mummy Oetzi, discovered on 1991 in the Italian Schnal Valley glacier, displayed at the Archaeological Museum of Bolzano, Italy on February 28, 2011

Original Article:

phys.org

 

Oetzi the famous “iceman” mummy of the Alps appears to have enjoyed a fine slice or two of Stone Age bacon before he was killed by an arrow some 5,300 years ago.

His last meal was most likely dried goat meat, according to scientists who recently managed to dissect the contents of Oetzi’s stomach.

“We’ve analysed the meat’s nanostructure and it looks like he ate very fatty, dried meat, most likely bacon,” German mummy expert Albert Zink said at a talk in Vienna late Wednesday.

More specifically, the tasty snack is thought to have come from a wild goat in South Tyrol, the northern Italian region where Oetzi roamed around and where his remains were found in September 1991.

Mummified in ice, he was discovered by two German hikers in the Oetztal Alps, 3,210 metres (10,500 feet) above sea level.

Scientists have used hi-tech, non-invasive diagnostics and genomic sequencing to penetrate his mysterious past.

These efforts have determined Oetzi died around the age of 45, was about 1.60 metres (five foot, three inches) tall and weighed 50 kilos (110 pounds).

He suffered a violent death, with an arrow severing a major blood vessel between the rib cage and the left shoulder blade, as well as a laceration on the hand.

As part of their latest discoveries, Zink’s team also found that Oetzi had an ulcer-inducing bacteria and may have suffered from stomach aches.

But for all his parasites, worn ligaments and bad teeth, he was in “pretty good shape”, Zink wrote in the renowned US magazine Science earlier this month.

 

Read Full Post »

bluefish cave bone

bluefish cave bone

 

Original Article:

westerndigs.org

by Blake de Pastino

A close look at bones found in a Yukon cave seems to confirm a controversial finding made decades ago, archaeologists say: that humans arrived in North America 10,000 years earlier than many experts believe.

The bones are the remains of horse, bison, mammoths, and other Ice Age fauna, originally excavated from the Bluefish Caves near the border of Alaska and the Yukon Territory in the 1970s and 1980s.

Back then, radiocarbon dating placed the bones at about 25, 000 years old — not in itself surprising, except that many of the bones appeared to have been butchered by humans.

And the earliest evidence of human activity on the continent — at least at the time — dated back a mere 14,000 years.

Anthropologist Lauriane Bourgeon at the University of Montreal has devoted her doctoral thesis to revisiting the controversy surrounding the Bluefish Caves bones.

And she has concluded that more than a dozen of the animal bones do indeed bear “indisputable evidence of butchery activity,” showing that humans were on the continent well before the end of the last Ice Age.

The implications of these findings are weighty, not only for the timing of the peopling of the Americas, but for the way in which people actually moved from Asia into what’s known as Eastern Beringia — the swath of North America immediately east of the Bering Strait.

Bluefish Caves are located near the Ogilvie Mountains in Yukon Territory. (Photo courtesy Lauriane Bourgeon)

Bluefish Caves are located near the Ogilvie Mountains in Yukon Territory. (Photo courtesy Lauriane Bourgeon)

“In addition to proving that Bluefish Caves is the oldest known archaeological site in North America,” Bourgeon and her colleagues write in the journal PLOS One, “the results offer archaeological support for the ‘Beringian standstill hypothesis,’ which proposes that a genetically isolated human population persisted in Beringia during the Last Glacial Maximum (ed: the Ice Age) and dispersed from there to North and South America.”

The caves were first excavated by Canadian archaeologist Jacques Cinq-Mars starting in 1977, who posited, based on radiocarbon dating at the time, that the scored and damaged animal bones were evidence of human activity in the Americas as much as 25,000 years ago.

Largely dismissed and later overlooked, the theory was recently taken up by Bourgeon.

In 2015, she published some of her preliminary findings, after having studied 5,600 bone fragments from Cave 2 of the Bluefish Caves.

Most of the scoring and hatching marks on the bones were made by scavenging animals and not humans, she said.

But at least two of the bones did betray the tell-tale signs of human butchery, she said, including the pelvis bone of a caribou that bore deep, parallel lines etched in them.

“That is typically the mark of a stone tool used to de-flesh or disarticulate a carcass,” she told Western Digs at the time.

But the oldest of the samples that she tested was no more than 14,000 years old.

(See full coverage of her 2015 study: “Butchered Bones Found in Yukon Cave Bear Marks of Early Americans, Study Finds“)

Today, she and her team have obtained even more impressive results.

Bourgeon’s full study covered 36,000 bones from Caves 1 and 2, studying them under a high-power microscope and comparing them to other bones that had been scarred by animals, broken by freeze-thaw cycles, or damaged by rockfall or other natural sources of abrasion.

She and her team concluded that 15 bone samples bore striations that they say are “confidently attributable to human activities.”

Unlike carnivore teeth, which leave wide, shallow, U-shaped depressions, these samples bore the signature of a hand-held tool, they assert.

“Series of straight, V-shaped lines on the surface of the bones were made by stone tools used to skin animals,” said Montreal’s Dr. Ariane Burke, adviser to Bourgeon and a co-author of the new study, in a press statement.

“These are indisputable cut-marks created by humans.”

The team also conducted its own series of radiocarbon tests on six of the bones with the butchery marks.

The youngest specimen was 12,000 years old and the oldest — the lower jaw of an extinct horse, said to have marks showing where its tongue was cut out — was 24,000 years old.

Taken together, these two data points suggest that Ice Age Alaska and Yukon were not only inhabited, the team asserts, but that it was inhabited by a genetically isolated population, because 24,000 years ago, the rest of the continent was covered in glaciers and impassable.

This idea — known as the Beringia standstill hypothesis — has been proposed by some geneticists, who have found molecular clues in the DNA of indigenous groups both east and west of the Bering Strait which suggest that the Americas’ earliest settlers lingered in Eastern Beringia for thousands of years before being able to migrate south.

“Our discovery confirms the ‘Beringian standstill hypothesis,’” said Burke in the statement.

“Genetic isolation would have corresponded to geographical isolation.

“During the Last Glacial Maximum, Beringia was isolated from the rest of North America by glaciers and steppes too inhospitable for human occupation to the West.

“It was potentially a place of refuge.”

A growing body of evidence has been discovered since the ‘70s that shows a substantial human presence in the Americas before 14,000 years ago.

But there’s limited archaeological evidence to suggest that the continent was populated a full 25,000 years ago.

To that, Bourgeon and her team say, future research must focus on both archaeological and genetic evidence, specifically in the region around the Bering Strait, in order to get to the bottom of how and when the continent was populated.

“More research effort is required in Beringia clearly, to substantiate the existence of a standstill population and fully understand the prehistory of the first people of the Americas,” they write.

Read Full Post »

This is another Article on crops and the Chaco Culture published in January with expanded information.

JLP

chaco-supernova-pictograph-730x438

Original Article:

by Blake de Pastino

western digs.org

For more than a century, researchers have been studying the intricacies of Chaco Canyon — the cluster of settlements and multi-story “great houses” in northwestern New Mexico that, at its peak around the year 1100, may have been home to hundreds, if not thousands, of people.

Recently, researchers have been at odds over a simple, central question in the history of this monumental community:

How did the people of Chaco manage to grow food in such an arid environment?

According to new research, the answer is even simpler.

They didn’t.

Dr. Larry V. Benson, a former hydrologist with the U.S. Geological Survey and an anthropologist at the University of Colorado, has studied soil and other environmental records from the region, and concludes that Chaco Canyon was both too dry and too salty to grow corn or beans, two of the staple crops of the Ancestral Puebloans who lived there.

As a result, Benson proposes a new theory about how Chacoans fed themselves: They imported their food.

“The important thing about this study is that it demonstrates you can’t grow great quantities of corn in the Chaco valley floor,” Benson said of his new findings, in a press statement.

“And you couldn’t grow sufficient corn in the side canyon tributaries of Chaco that would have been necessary to feed several thousand people.

“Either there were very few people living in Chaco Canyon, or corn was imported there.”

Benson is the scientist behind many sometimes contentious anthropological findings around the West.

In 2013, he played a role in the discovery of petroglyphs in Nevada that were determined to be the oldest on the continent.

More recently, he concluded that the circular masonry feature at Mesa Verde National Park known as Mummy Lake wasn’t a reservoir, as many had thought, but a ceremonial structure.

Benson’s new research is a riposte to a study released in September that promised to “shake up” the field of Southwestern archaeology with its findings that Chaco Canyon’s soil was not too salty to farm, as Benson and others had previously asserted.

In fact, this research concluded, Chaco’s soil was rich in certain mineral salts, like calcium sulfate, that actually made it especially fertile for growing plants such as corn.

“One thing we can say with a great degree of certainty: The Ancestral Puebloans did not abandon Chaco Canyon because of salt pollution,” said Dr. Kenneth Tankersley, an anthropologist and geologist at the University of Cincinnati, in a press statement at the time.

But in his new paper, currently being published by the Journal of Archaeological Science: Reports, Benson answers Tankersley’s study with new data and arguments of his own.

First, he draws on tree ring data.

Cross-sections of trees are considered natural records of annual rainfall, with thick and thin rings corresponding to wet and dry years.

Using data from tree-core samples spanning 1,100 years, Benson notes that Chaco only experienced sufficient rainfall for growing corn about 2 percent of the time.

Regardless of the soil’s salt content, Benson writes, “this implies that an exceptional wet period did not prevail during Chaco’s heyday.”

As for the benefits of sulfur on maize crops, Benson argues that, while sulfur is an important nutrient in agriculture, it’s mainly useful in treating metallic sulfates in acidic soil, a condition that Chaco Canyon doesn’t have.

“The principal usefulness of sulfur in maize agriculture is its ability to reduce aluminum toxicity that often accompanies soil acidity, a problem that does not occur in the high-pH soils of the Chaco Canyon region,” Benson writes.

Moreover, in his own analysis of soil samples taken from the valley bottom and the side canyons that feed into it, Benson finds that levels of salt were indeed very high — at some points, higher than those found in seawater.

Considering that Chaco’s soil chemistry likely hasn’t changed much over the past 800 years, Benson concludes that Chaco Canyon was simply never suitable for farming on a scale large enough to have fed its population.

“I don’t think anyone understands why it existed,” he said of the cultural complex, in the press statement.

“There was no time in the past when Chaco Canyon was a Garden of Eden.”

In turn, Benson offers an alternative explanation for how the communities of Chaco got their food: It was imported from the Chuska Mountains, some 80 kilometers (50 miles) away.

The eastern slope of the Chuskas is known to have been home to a robust Ancestral Puebloan presence, he said, their numbers aided in part by the ample water provided by snowmelt.

Previous studies have estimated that as many as 17,000 people made their home on the Chuska Slope before the year 1100, and recent research has even found that those mountains were the source of the Chaco Canyon’s huge building timbers.

Given the other cultural connections between the two communities, Benson said, it’s plausible that the Chuskas served as what he called “Chaco’s breadbasket.”

“There were timbers, pottery and chert coming from the Chuska region to Chaco Canyon, so why not surplus corn?” Benson said in the statement. [Read more about trade of exotic goods in Chaco: “Bones of Exotic Macaws Reveal Early Rise of Trade, Hierarchy in Chaco Canyon”]

The nature of Chaco’s agricultural environment, and how Ancestral Puebloans managed to thrive within it, remain open questions for now.

But Benson suggests that, in addition to Chaco’s natural chemistry, the relationship between these two communities in pre-contact New Mexico also deserves closer study.

“Perhaps it is time to reassess Chaco Canyon as a self-sustaining bread basket and turn to new studies of the prehistory of the Chuska Slope and its connection to Chaco Canyon,” he writes.

Tankersley and his colleagues have not yet been contacted for a response.

 

Read Full Post »

Chaco Canyon

Chaco Canyon

 

Original article:

Colorado.edu

 

Ancient Chaco Canyon population likely relied on imported food

Ancient ruins are seen in part of Chaco Canyon.

The ancient inhabitants of New Mexico’s Chaco Canyon, the zenith of Pueblo culture in the Southwest a thousand years ago, likely had to import corn to feed the multitudes residing there, says a new CU Boulder study.

CU Boulder scientist Larry Benson said the new study shows that Chaco Canyon—believed by some archeologists to have been populated by several thousand people around A.D. 1100 and to have held political sway over an area twice the size of Ohio–had soils that were too salty for the effective growth of corn and beans.

“The important thing about this study is that it demonstrates you can’t grow great quantities of corn in the Chaco valley floor,” Benson said. “And you couldn’t grow sufficient corn in the side canyon tributaries of Chaco that would have been necessary to feed several thousand people. Either there were very few people living in Chaco Canyon, or corn was imported there.”

“Either there were very few people living in Chaco Canyon, or corn was imported there.”

A paper by Benson was published online in the Journal of Archaeological Science: Reports.

Between the ninth and 12th centuries, Chaco Canyon (officially the Chaco Culture Natural Historic Park) located in the San Juan Basin in north-central New Mexico was the focus of an unprecedented construction effort, Benson said. At the height of its cultural heyday, 12 stone masonry “great houses” and other structures were built there, along with a network of ceremonial roads linking Chaco with other Pueblo sites in the Southwest.

As part of the study, Benson used a tree ring data set created by University of Arizona Professor Emeritus Jeff Dean that showed annual Chaco Canyon precipitation spanning 1,100 years. The tree rings indicate the minimum amount of annual precipitation necessary to grow corn was exceeded only 2.5 percent of the time during that time period.

Benson suggests that much of the corn consumed by the ancient people of Chaco may have come from the Chuska Slope, the eastern flank of the Chuska Mountains some 50 miles west of Chaco Canyon that also was the source of some 200,000 timbers used to shore up Chaco Canyon masonry structures. Between 11,000 and 17,000 Pueblo people are thought to have resided on the Chuska Slope before A.D. 1130, he said.

Winter snows in the Chuska Mountains would have produced a significant amount of spring snowmelt that was combined with surface water features like natural “wash systems,” Benson said. Water concentrated and conveyed by washes would have allowed for the diversion of surface water to irrigate large corn fields on the Chuska Slope, he said.

The Chaco Canyon inhabitants traded regularly with the Chuska Slope residents, Benson said, as evidenced by stone tool material (chert), pottery and wooden beams.

“There were timbers, pottery and chert coming from the Chuska region to Chaco Canyon, so why not surplus corn?” asks Benson, a former U.S. Geological Survey scientist.

Many archaeologists are still puzzled as to why Chaco Canyon was built in an area that has long winters, marginal rainfall and short growing seasons. “I don’t think anyone understands why it existed,” Benson said. “There was no time in the past when Chaco Canyon was a Garden of Eden.”

 

Read Full Post »

Older Posts »

%d bloggers like this: