Showing posts with label ancient metallurgy. Show all posts
Showing posts with label ancient metallurgy. Show all posts

Wednesday, December 2, 2009

Northwest China Had Bronze Production Early On

We know the area around the Tarim Basin where the world-famous Urumchi mummies and others were discovered might not always have been a desert, because some of the grave yards were surrounded with wooden stockades, and many of the discovered graves were covered with wood. (See book cover, below, showing one such location).

In a desert, there would have been no wood. The most obvious answer seems to be that the people who became the mummies were there and were buried before the area became a desert. But then, how did they become mummies? As I understand it, the current theory says that the mummies were naturally dessicated by the sere surroundings. It would have been a process akin to what happened to bodies buried in the sand in pre-dynastic Egypt, before elaborate embalming and mummification rituals were created.


But, a climate that would have supported enough trees to supply the wood necessary to construct the graveyards would imply a climate that was not conducive to the formation of dessicated mummies. So, I am at a loss.

You can trace out the ancient northern route of the Silk Road by following the towns: Turpan, Korla, Urumchi, Kuqa, Aksa, Kashgar. Between the northern route and the southern route (which was a killer, with water stops few and far between, but the shorter route), a vast nothingness, quite visible even today on the modern maps.

This article, which presents important information about the early history of bronze smelting in Gansu Province in northwest of China, also indicates that research reveals that the climate once supported trees and farming, and that the people only left after the destruction of all of the trees, when the land turned to desert (I envision a process akin to what caused the Dust Bowl in the 1930's in the USA).

The ancient gateway city of Dunhuang, on the famed Silk Road (c. 200 BCE - 220 CE), which was travelled some 2000 years after the mummies of Urumchi were buried and 3000 years after the Beauty of Loulan was buried, was the last stop for travelers westward to stock up on supplies before venturing forth across the vast horrible stretch of the Taklamakan Desert. It is located on the western border of Ganshu Province.

China had bronze early on
Thursday, 03 December 2009
Australian Nuclear Science and Technology Organisation

ANSTO research has shown that an area of desert in north-western China was once a thriving Bronze Age manufacturing and agricultural site. The new findings may help shed light on the origins and development of the earliest applications of Bronze Age technology.

Dating, using ANSTO’s precision techniques, was used to identify the age of seeds, slag, copper ore and charcoal at two sites. The findings show the material is up to 3700 years old, but that smelting was still being carried out as recently as 1300 years ago.

The research indicates bronze production may have begun as early as 2135 BC and that the modern mine location - Baishantang at Dingxin - was possibly the historical source of copper ore for manufacturing. ANSTO’s Professor John Dodson conducted the research in conjunction with scientists from the State Key Laboratory of Loess and Quaternary Geology in China. A photo of the study site is on the November issue of the journal “Quaternary Research”.

“This research takes us a step closer to discovering the origins and development of bronze manufacturing in China,” said Professor Dodson. “Further research will look at whether bronze technology was invented in several places around the world independently, or whether the technology was transferred from a single centre of origin.”

“The aim of the study was to determine possible sources of ore and evidence of bronze production through analysis of artefacts (with copper and arsenic content) including analysing samples of slag and copper ore from two archaeological sites known as Ganggangwa and Huoshiliang in northwestern Gansu Province,“ he said.

The research used lead and strontium isotopic analysis to identify and age ornaments, knives, rings, hemispherical objects and spearheads.

The team discovered substantial areas of woody vegetation around the sites which is now dominated by sand dunes. The Bronze Age people of the Gansu area were farmers who planted cereals such as wheat and practiced animal husbandry. Horse and sheep bones are common. It is believed they may have abandoned the region when wood was exhausted and desertification took over.

Friday, March 27, 2009

Start of the Iron Age Pushed Back

Excavation in Turkey set to rewrite history of Iron Age BY NOBUYUKI WATANABE THE ASAHI SHIMBUN 2009/3/27 Japanese researchers digging in Turkey have pushed back the start of the Iron Age, until now presumed to have begun around 1500 B.C., with the discovery of fragments of an iron tool that predate previous finds by several centuries. The implication of the excavations at Kaman-Kalehoyuk, about 100 kilometers southeast of Ankara, is that the history of iron tool production may have to be rewritten. Researchers of the Middle Eastern Culture Center in Japan have worked the Kaman-Kalehoyuk site since 1985. They said iron fragments believed to be part of a blade were found in a geological layer dating from 2100 B.C. to 1950 B.C. Until now, the first use of man-made iron tools and weapons was believed to have been around 1500 B.C. by Hittites who lived in the Anatolian Peninsula. The iron fragments were found during excavations in 2000. The artifact, which is in pieces, would have a total length of 5 centimeters if connected. Although the tool was badly corroded, an X-ray of a cross section produced an image of a sharp edge. Researchers believe the tool was a single-edged dagger. Another fragment, a piece of iron slag, measures 2 centimeters in diameter. Two rocks containing iron were also found, suggesting that iron workshops existed at the site. Located in Tokyo's Mitaka city, the Middle Eastern Culture Center in Japan was established in 1979. During excavations that wound up last year, researchers discovered iron from a geological layer from before 1500 B.C. However, they said there was a chance the artifact had settled from a later period. Hideo Akanuma, a senior curator at the Iwate Prefectural Museum, began analyzing the metal fragments last year. According to Akanuma, "The discovery of iron in different stages of processing as well as its raw materials from the same geological layer is conclusive evidence that iron processing occurred at the site." The Hittites are credited with being the first race of people to artificially create iron. Iron tools emerged in China from around the seventh century B.C. and spread during the Warring States Period of the fourth century B.C. The technology is believed to have reached Japan around the Yayoi Pottery Culture era of 300 B.C.-300 A.D. Sachihiro Omura, who heads the Japanese Institute of Anatolian Archaeology at the Middle Eastern Culture Center in Japan, said, "After iron production began in the Anatolian Peninsula, the conquering Hittites, who invaded from the north, used iron to make their weapons. "By protecting the secret of iron production, the Hittites were able to build an empire that extended across the Orient," he said.(IHT/Asahi: March 27,2009)

Sunday, February 22, 2009

Precious Copper Ingots Found in Devonshire

Treasure trove! Detector found bronze hidden 3,000 years ago Thursday, February 12, 2009, 09:28 PRECIOUS copper fragments stashed away by pre-historic Denbury residents more than 3,000 years ago have been unearthed. Seven copper ingots smelted sometime between 1100BC and 800BC and thought to have been stashed away by blacksmiths for later repairs to tools and axes were discovered in fields ploughed by farmer Kiernan Wellwood. Phil Higginson, 52, from Newton Abbot and fellow members of Torbay Metal Detecting Club Stuart Hunt, from Newton Abbot and David Martin, from Exeter, unearthed the prehistoric hoard in April. Mr Higginson said: "I found a couple of pieces of copper first and one of the other chaps found a similar piece and someone else found another. We did not realise what it was at first, but when we all put our heads together we knew it was copper and probably buried when the pyramids were being built. It was amazing to think the last person to have touched it lived more than 3,000 years ago." The finds were recorded with Devon's archaeological finds liaison officer Danielle Wootton and are now at the British Museum. A treasure trove inquest was held on Tuesday to determine whether the find is valuable and if it can be kept by the finder or has to go to the museum. The pieces are classed as treasure and Exeter Royal Albert Memorial Museum has expressed interest in acquiring the find. The pieces have been analysed by British Museum experts who confirmed that they are late Bronze Age. Ms Wootton told the inquest: "We do not know what they are exactly but we think that because the metal at the time was precious it was buried away from view to be used later for repairs to tools and axes. "We have more and more finds like this in Devon and it could be it forms part of some kind of ritual. The more we learn about the Bronze Age the more we realise how civilised these people were." [Well, duh!] A medieval silver dress hook was also discovered in a Kingsbridge field. Ivybridge metal detector Barry Lang with a South Hams metal detecting club unearthed the early 16th century piece on land owned by farmer Paul Rogers, another treasure trove inquest heard. The piece has been analysed by experts at British Museum. Torbay and South Devon coroner Ian Arrow said both finds should be classed as treasure and should go to museums. It is likely the dress hook will be acquired by Plymouth Museum and art gallery.

Sunday, December 14, 2008

Greek Copper Hoard Discovered

Okay - I don't get it - were the weapons made out of copper (see first sentence of article) - or out of bronze (see title of article)? It makes a big difference as far as historicity is concerned! Prehistoric bronze hoard found off Greek beach Thu Dec 11, 7:46 am ET ATHENS, Greece – Authorities say a hoard of 4,500-year-old copper weapons recovered off a northern beach is the largest of its kind ever found in Greece. A Culture Ministry statement says the discovery includes at least 110 ax and hammer heads, but several more should be extracted from compacted masses of corroded metal. The ministry says they were probably buried at a time of unrest or war. The hoard would have represented a fortune at the time. Thursday's statement says there were no traces of a shipwreck. The site was probably a coastal area flooded by rising sea levels. The tools were discovered near the village of Mesi, 500 miles (800 kilometers) northeast of Athens. Archaeologists recovered it from a depth of 3 1/2 yards (meters).

Wednesday, October 8, 2008

Copper Age Shocker

The archaeological site at Plocnik is back in the news, this time with a stunning discovery that could very well change a fundamental archaeological paradigm. Copper Age began earlier than believed, scientists say Europe News Oct 7, 2008, 14:47 GMT Belgrade - Serbian archaeologists say a 7,500-year-old copper axe found at a Balkan site shows the metal was used in the Balkans hundreds of years earlier than previously thought. The find near the Serbian town of Prokuplje shifts the timeline of the Copper Age and the Stone Age's neolithic period, archaeologist Julka Kuzmanovic-Cvetkovic told the independent Beta news agency. 'Until now, experts said that only stone was used in the Stone Age and that the Copper Age came a bit later. Our finds, however, confirm that metal was used some 500 to 800 years earlier,' she said. The Copper Age marks the first stage of humans' use of metal. It is thought to have started in about the 4th millennium BC in southeastern Europe and earlier in the Middle East. Archaeologists at the Plocnik site also found furnace and melting pots with traces of copper, suggesting the site may have been an important metal age center of the Balkans. 'All this undeniably proves that human civilization in this area produced metal in the 5th millennium BC,' archaeologist Dusan Sljivar told Beta. The Plocnik site was discovered in 1927 and first excavations began a year later when first neolithic items were found. It is part of the Vinca culture, Europe's biggest prehistoric civilization. Vinca culture flourished from 6th to 3rd millennium BC in present-day Serbia, Croatia, Romania, Bulgaria and Macedonia. Its name came from the village Vinca on the Danube river, some 14 kilometers downstream from Belgrade. (c) Deutch Press-Agentur

Wednesday, April 9, 2008

An Archaeological Find in Michigan


Artifact may be ancient ax blade
Published: April 09, 2008 09:50 am

ESCANABA (AP) -- Ryan Bernard of Escanaba has found a lot of interesting things with his metal detector: an 1837 Quebec bank token, an 1861 penny, a 1916 buffalo nickel.

When he found a hunk of metal buried 2 feet beneath his Lakeshore Drive backyard last summer, he almost threw it in the trash. Upon further examination, it may be an artifact from a prehistoric culture.

"I was about to throw it in the garbage, and I held it up and I saw the honed edge on it," he said.

Ray Reser, director of the Central Wisconsin Archaeology Center at the University of Wisconsin-Stevens Point, described the object as a copper "celt," a type of ax blade with no perforations or grooves. He said the celt was probably a functioning tool. The piece probably dates from 3,000 to 5,000 years ago.

"We were just out there looking for weed pennies and what not," Bernard said. "To end up digging something like that up is really shocking."

When his detector went off, he wasn't expecting much. "A lot of times when you get a signal that good and it's buried that deep, it's just a big chunk of iron," he said.

He said he dug down, found nothing, got frustrated and recovered the hole. When his father gave him some ribbing for not finding anything, he tried again, a little deeper, and there it was.

Similar findings have been made throughout the Upper Midwest, most notably in Oconto, Wis., where a site unearthed in 1952 now known as Copper Culture State Park yielded several burial plots and artifacts.

Thomas Pleger, a professor at the University of Wisconsin-Baraboo/Sauk County, wrote his doctoral dissertation on the Old Copper Complex. He described these prehistoric societies as seasonally-mobile people whose temporary homes were based on abundance of particular resources.

Hunting, fishing and trade were the basis of their lives. The Old Copper Complex is one of the oldest metal-working societies in the world. Many sites have been found near major waterways. Pleger said though the shoreline is not likely where it was then, what made land valuable for settlement then still holds true today.

"Where do you see campgrounds today," he said. "Public campgrounds tend to be on high, well-drained land in close proximity to water."

The copper likely started out in the Keweenaw Peninsula. Bernard believes it could have been "float" copper, that is, deposited by retreating glaciers. Pleger said it was more likely acquired via trade.

Keweenaw copper from this era is easily identifiable because of its exceptional 99 percent purity, making it suitable for forming right out of the ground. Reser said Keweenaw copper artifacts have been found in Mexico, the Rockies and the East Coast.

"This stuff was highly coveted. It was intensively traded up and down the Mississippi River valley," he said.

For the first thousands of years, most copper artifacts from this culture were used as tools. By 1000 B.C., Pleger said more pristine items, such as jewelry, can be found.

Bernard wants to find out more about the artifact and the people who may have left it in what would become his backyard. He said the search for its origins has been frustrating, especially since he is not an archaeologist.

"I've learned definitely, first of all, you have to present yourself professionally, even if you're not a professional, so to speak," he said.

Still, he has observed consensus on what he's found.

"All of the people that have actually seen it, when they see it, they recognize what it is," he said.

Pleger said because those people were fairly mobile, and due to the perishable nature of their materials, archaeologists have yet to excavate well-preserved habitation sites connected to the Old Copper Complex, but the nature of their finds does retain some clues.

"One of the other nice things about copper artifacts is that it tends to preserve organic material that it comes into contact with," he said. The oxide created in the copper over time retards bacterial growth.

Most field work on these sites in this region was done in the 1950s and '60s, but Pleger said scholars are starting to re-examine the conclusions made then.

Metal detecting technology has resulted in many similar finds, but not all people have taken as much care with what they found. "Collectors find these things and will often clean them up, destroying the evidence we can use to date them," Pleger said.

Pleger said there are many unknown elements of the Old Copper Complex, but archaeologists, both professional and impromptu, must be smart with what they find.

"It's important to understand that the archaeological resources of Michigan, Wisconsin, Canada are non-renewable," he said.

Bernard said he's awestruck to be able to hold something that might have been from thousands of years ago. "That's an awesome piece of Escanaba history, I think," he said.

Tuesday, April 1, 2008

Oldest Known Gold Necklace in Americas Found

Necklace is 'oldest in Americas'
By Helen Briggs Science reporter, BBC News

A necklace found near Lake Titicaca in southern Peru is the oldest known gold object made in the Americas, archaeologists say.

Radiocarbon dating puts its origin at about 4,000 years ago, when hunter-gatherers occupied the area.

The researchers say it appears to have been fashioned from gold nuggets.

The discovery suggests that the use of gold jewellery to signify status began before the appearance of more complex societies in the Andes, they report.

Writing in the journal Proceedings of the National Academy of Science (PNAS), they say the artefact is the earliest worked gold found not only in the Andes, but the Americas as well.

Study leader Dr Mark Aldenderfer of the department of anthropology at the University of Arizona, Tucson, said it demonstrated an emerging social role for gold beyond simple decoration.

He told BBC News: "The gold reflects a universal tendency for human beings to strive for prestige and status.

"The gold reflects that process in people living in a simple society which is in the process of becoming more complex."

Status symbol
The necklace was found alongside the jawbone of an adult skull in a burial pit next to primitive pithouses at Jiskairumoko, a hamlet that was settled from 3,300 to 1,500 BC.

The researchers believe it had been worn by an adult, probably an elderly woman.

Marks on the necklace suggest that gold nuggets had been flattened with a stone hammer and then carefully bent or hammered around a hard cylindrical object to create a tubular shape.

The gold would have signalled the prestige of its wearer, "not at all different to today," said Dr Aldenderfer.

"This reflects a lot more than just a lovely object," he added. "This is a major piece of how people lived their lives and how they competed for status in the past."


Here is coverage from Archaeology News - Inthenews.co.uk
Oldest-known American gold necklace found in Peru
Tuesday, 01 Apr 2008 10:44

Archaeologists believe a nine-bead necklace recently found near Lake Titicaca in Peru is the oldest-known gold artefact in the Americas.

The necklace was found by the jawbone of an adult skull in a burial pit next to a primitive dwelling at Jiskairumoko.

Scientists believe this small hamlet was settled from 3300 to 1500BC

Writing in the journal Proceedings of the National Academy of Sciences (PNAS), the US researchers say radiocarbon dating of nearby material places the necklace's origin at about 2100 BC.

The necklace's gold beads are thick and cylindrical in shape with different lengths.

One of the beads had been perforated and a small greenstone bead was found in the soil.

Archaeologists are unsure how the necklace was made as no obvious tools to create the beads were found at the site. [Why would they even assume it had been made at the site??? It could have been - and probably was - made elsewhere and traded for, or gotten as booty during a war - or came to the person as part of a marital settlement. There are lots of different possibilities about how the necklace could have got where it ended up.]

But they say as each of the beads has distinctive hammer marks it is likely the raw native gold was hammered first and then bent and/or hammered around a hard cylindrical object to create the tubular shape.

The necklace's discovery at a settlement of seasonal hunter-gatherers shows that the use of gold jewellery to distinguish wealthy and important people began before the appearance of more complex societies in the Andes, the researchers argue.

"This discovery lends support to the hypothesis that the earliest metalworking in the Andes was experimentation with native gold," they conclude.

"The presence of gold in a society of low-level food producers undergoing social and economic transformations coincident with the onset of sedentary life is an indicator of possible early social inequality and aggrandising behaviour.

"[It] further shows that hereditary elites and a societal capacity to create significant agricultural surpluses are not requisite for the emergence of metalworking traditions."
****************************************************************************************
Was the jawbone that of a woman? How do they know the wearer of the necklace was a woman? How do they know that their assumption that the "gold would have signalled the prestige of its wearer" is correct? They haven't said anything about where the gold came from or what it might have meant to the person wearing the necklace. In the absence of compelling evidence otherwise, they are just assuming based on our greedy western avarice for gold (which, after all, is pretty but cannot be eaten or planted, so it's not much good after all, is it).

There is also nothing to support the purported age of the artifact. Just because the necklace was found in a layer dating to 4000 years ago doesn't mean the artifact is that age; it could be older, for one thing. It might have been made hundreds of years before, or even thousands of years before the layer where it was buried. But can that ever be determined? It is also possible that the layers might have been disturbed where the necklace and burial were found and the necklace could be much younger than where it ended up being buried. The restored artifact is beautiful, though!

Tuesday, January 1, 2008

Sican Exhibit in Canada


The Canadian Museum of Civilization is sponsoring an important exhibit of Sican artifacts. Image: Sican bird deity.

Secret Riches: Ancient Peru Unearthed
Special Exhibitions Gallery C
December 14, 2007 - April 27, 2008

A thousand years ago in Peru, the Sicán forged a complex civilization. This exhibition features 120 spectacular gold and ceramic objects recently excavated from an undisturbed tomb. Discover the story of the Sicán — an ingenious culture often eclipsed by its better-known successors, the Inca.

Organized and circulated by The Nickle Arts Museum, in cooperation with the Sicán National Museum, Peru, and the National Institute of Culture of Peru.

This exhibition is made possible with the support of Willow Park Wines and Spirits, Government of Alberta Community Development, AMJ Van Lines.

The Sicán were mainly farmers, fishers, metalworkers and artisans who lived in the fertile valleys and coastal plains that lie between the Pacific Ocean and the foothills of the Andes, near the equator in northern Peru. Sicán culture started about 1,250 years ago and flourished for at least 500 years, before collapsing in the fourteenth century.

The Sicán are renowned today for the scale and sophistication of their metalworking, said to be unequalled in pre-Columbian America. They were the first people in northern Peru to produce bronze on a large scale, and their production and shaping of gold foil and gold sheets required extraordinary skill.

The Looting of Sican Treasures
The Sicán buried some of the finest objects of their material culture deep underground, in the treasure-laden burial chambers of the rich and powerful. Since at least the 1930s those tombs have been raided on a massive scale. One 50 square-kilometre area of former Sicán land has been described as perhaps the most heavily plundered site in the world. Using aerial photographs of the area, an archaeologist has counted about 100,000 holes dug by looters and about 100 trenches carved by bulldozer to uncover shaft-tomb entrances.

Although tomb raiding in Peru goes back to at least the Spanish Conquest in the sixteenth century, it reached a fever pitch in the heartland of the Sicán in 1937 when a local landowner retrieved 15 potato sacks of gold artifacts from a single tomb. Looting soon became an organized commercial activity. Treasure hunters would dig vertical shafts deep into the ground and then tunnel horizontally. The full measure of their success will never be known, but it is likely that tons of precious artifacts were taken. Much of the looted treasure — especially the most spectacular of the gold objects — ended up in museums and private collections around the world, usually misidentified as Incan. Removed from any physical or cultural context, their value to archaeologists was vastly diminished. Did the object come from a royal palace or a commoner’s grave? Was it found in Sicán territory or in a far-off land? Was it decorative or utilitarian? Was it a single piece or part of a set? Was it worn by a man or a woman, an adult or a child? Was the object modified or damaged, even through the simple act of cleaning? Were original parts discarded or replaced?

All that vital information is lost forever when objects are looted and dispersed.
*************************************************************************************
Read more.
Related Posts Plugin for WordPress, Blogger...