New method could revolutionize radiocarbon dating of ancient treasures

Washington, March 24 (ANI): A team of scientists has developed a revolutionary new method to determine the age of ancient mummies, old artwork, and other relics without causing damage to these treasures of global cultural heritage.

According to Marvin Rowe, a professor emeritus at Texas A and M University College Station, who led the research team, the new method is a form of radiocarbon dating, the archaeologist’s standard tool to estimate the age of an object by measuring its content of naturally-occurring radioactive carbon.

Traditional carbon dating involves removing and burning small samples of the object.

Although it sometimes requires taking minute samples of an object, even that damage may be unacceptable for some artifacts.

The new method does not involve removing a sample of the object.

Conventional carbon dating estimates the age of an artifact based on its content of carbon-14 (C-14), a naturally occurring, radioactive form of carbon.

Comparing the C-14 levels in the object to levels of C-14 expected in the atmosphere for a particular historic period allows scientists to estimate the age of an artifact.

Both the conventional and new carbon dating methods can determine the age of objects as far back as 45,000 to 50,000 years, Rowe said.

Rowe’s new method, called “non-destructive carbon dating,” eliminates sampling, the destructive acid-base washes, and burning.

In the new method, scientists place an entire artifact in a special chamber with a plasma, an electrically charged gas similar to gases used in big-screen plasma television displays.

“The gas slowly and gently oxidizes the surface of the object to produce carbon dioxide for C-14 analysis without damaging the surface,” said Rowe.

Rowe and his colleagues used the technique to analyze the ages of about 20 different organic substances, including wood, charcoal, leather, rabbit hair, a bone with mummified flesh attached, and a 1,350-year-old Egyptian weaving.

The results match those of conventional carbon dating techniques, they said.

“The chamber could be sized to accommodate large objects, such as works of art and even the Shroud of Turin, which some believe to be the burial cloth of Jesus Christ,” Rowe said.

“This technique stands to revolutionize radiocarbon dating,” he said.

“It expands the possibility for analyzing extensive museum collections that have previously been off limits because of their rarity or intrinsic value and the destructive nature of the current method of radiocarbon dating,” he added. (ANI)

DNA analysis key for solving mystery of King Tut’s origins

London, August 26 (ANI): Dr. Zahi Hawass, Secretary General of the Supreme Council of Antiquities, Egypt, has said that harvesting DNA from ancient mummies would be the key to solving the mystery surrounding Egyptian pharaoh Tutankhamen’s origins.

According to an article authored by Dr Hawass in the Asharq Alawsat Newspaper, he was in for a surprise when he entered the royal tomb of Tutankhamen with Professor Zakaria, and managed to get DNA samples.

Previously, there was hardly any hope in obtaining DNA samples from mummies, and Dr Hawass believed that he would prove to the world that mummies did not have any DNA suitable for analysis.

“For the first time, I saw that it is possible to harvest DNA from a mummy, and I believe that this will be the key to solving the mystery surrounding King Tutankhamen’s origins,” he wrote in the article.

Tutankhamen, the golden pharaoh, continues to bedazzle the entire world.

The discovery of King Tut’s tomb, which took place around 85 years ago, remains the most important archeological discovery of our time, not just in Egypt, but in the entire world.

This was the first time that a royal tomb of one of Egypt’s pharaohs was discovered untouched, and with the complete set of funeral furniture which was buried with the King.

In addition to this, there was also the treasures and jewelry which blinded anybody who set eyes on them.

“In an attempt to unravel the mystery surrounding King Tut’s family and discover the identity of his father, we find that there are some archeologists who strongly suggest that this is most probably King Akhenaton,” said Dr Hawass.

Akhenaton was the first Pharaoh to advocate monotheism, not just in ancient Egypt, but in the world. Others believe that Akhenaton’s father, King Amenhotep III is a more likely candidate for Tutankhamen’s father.

As for King Tut’s mother, “If we follow the speculation mentioned above with regards to Tutankhamen’s father, his mother is most likely either Queen Tiye, the consort of King Amenhotep III or the extremely famous, Queen Nefertiti, the consort of King Akhenaton,” said Dr Hawass.

These questions are enigmatic, and archeologists are having a hard time trying to answer them.

According to Dr Hawass, “We have embarked upon the quest to solve the mysteries surrounding King Tut thanks to the two DNA analysis laboratories that we have access to, as well as the availability of a CT-Scan machine, through which we are able to know every single detail about a mummy.” (ANI)

South American mummies were victims of arsenic poisoning

Washington, July 5 (ANI): A new research has suggested that many of the ancient mummies from the South American Chinchorro culture were victims of arsenic poisoning.

The Chinchorro mummies are mummified remains of individuals from the South American Chinchorro culture found in what is now northern Chile and southern Peru.

They are the oldest examples of mummified human remains, dating to thousands of years before the Egyptian mummies.

Unlike mummies in later civilizations, most notably Egypt that flourished for 2,500 years beginning 3,000 BC, that spun around prestige, wealth and power, Chinchorro mummification was based on a democratic and humanistic view of the dead, and everyone was mummified.

According to Down to Earth magazine, archaeologist Bernardo Arriaza, who studies the Chinchorro at the University of Tarapaca in Arica, said that unlike the Egyptians who hid the dead, the Chilean community embraced them.

The child mummies even took their place besides their parents at the dinner table. few years ago, Arriaza launched a daring new theory: the Chinchorro were victims of arsenic poisoning.

“I was reading a Chilean newspaper that talked about pollution and it had a map of arsenic and lead pollution, and it said arsenic caused abortions. I jumped in my seat and said, That’s it,” Arriaza said.ollowing the lead, Arriaza collected 46 hair samples from Chinchorro excavated from 10 sites in northern Chile.

Ten samples from the Camarones river valley had an average of 37.8 microgrammes per gramme-much higher than one to 10 microgramme of arsenic per gramme that indicates chronic toxicity according to World Health Organization (WHO) standards.

The sample from an infant’s mummy had a residue of 219 microgramme per gramme.

According to Arriaza, Chinchorros were a fishing society. They collected plants along river mouths and hunted both sea mammals and wild birds.

They made fishhooks out of shellfish, bone or cactus needles, spear throwers were used to hunt sea lions and wild camelids, while both lithic points and knives were manufactured using flint stones.

The Chinchorro lacked ceramic vessels, metal objects and woven textiles, but this was not a social handicap. Their simple yet efficient fishing technology allowed them to thrive along the Pacific coasts. ut, life was not without dangers.

In the 1960s, tests on water drawn by the city of Antofagasta in the Camarones river valley showed that it was laced with 860 microgrammes of arsenic per litre-86 times higher than the limits acceptable by WHO.

Arriaza believes this was the same case 7,000 years ago. Tests on the Chinchorro mummies strengthen the arsenic poisoning theory. (ANI)