The world’s oldest meteorite crater is really, really old - 3 billion years old, in fact. And when the 19-mile (30 km) wide meteorite landed on what is now Greenland, it made the biggest crater on earth.
The original crater has been estimated by researchers to have been about 310 miles (500 km) wide, but since the land has eroded since then, it currently measures only about 62 miles (100 km) across. The team led by Danish researcher Adam Garde of the Geological Survey of Denmark and Greenland found crushed rocks in a circular shape and deposits of potassium-feldspar that could only have been liquified by extremely high heat.
Only about 180 impact craters have been discovered on earth, although our planet was likely to have had as many craters as the moon. Most have been destroyed, however, by such processes as plate tectonics, and even wind and rain erosion.
The discovery of this giant crater has sparked a gold rush of sorts. One-third of the impact craters contain significant deposits which include precious metals such as gold, nickel, and other metals, along with valuable minerals, and a Canadian mining company is already exploring the region for mineable deposits.
The previous record for the oldest crater was generally believed to be South Africa’s Vredefort crater. This crater is the largest visible crater in the world, but is believed to be only about 2 billion years old.
For more information, go here
Monday, July 30, 2012
Wednesday, July 25, 2012
Were Horses Tamed Only 5,500 Years Ago?
Evidence from Kazakhstan indicates that the people known as Botai were the first to domesticate horses about 5,500 years ago. This late development is somewhat surprising since dogs, sheep, goats and pigs had been tamed much earlier as people made the transition from hunting and gathering to farming and animal husbandry.
The research team, led by Alan Outram of England’s University of Exeter, used three separate lines of research to confirm their findings. They found that the jaws of the horses found at the site showed marks on the teeth resembling those of modern horses caused by bits. Their leg bones were more slender than those of their wild cousins, indicating that people had been selectively breeding them. And analysis of the remains of ancient pots found at the site shows that at least some had once contained mare’s milk.
Domestication of the horse led to profound changes in human culture. Not only were they a source of meat and milk, but they opened new ways of transporting people and goods over longer distances. Domesticated horses made major contributions not only to farming and animal husbandry, but became valuable allies in war. Even today, especially in the regions of Kazakhstan and the Central Asian steppes, the horse remains an integral part of the local cultures.
For more about the horses of Kazakhstan go here
There is new information, however, that people living at a site known today as al-Maqar in the Arabian Peninsula may have domesticated horses around 9,000 years ago, or 4,000 years earlier than the Botai. Information is scanty so far, but the continued work at the site may be worth watching. Some information on the al-Maqar site may be found at this location.
The research team, led by Alan Outram of England’s University of Exeter, used three separate lines of research to confirm their findings. They found that the jaws of the horses found at the site showed marks on the teeth resembling those of modern horses caused by bits. Their leg bones were more slender than those of their wild cousins, indicating that people had been selectively breeding them. And analysis of the remains of ancient pots found at the site shows that at least some had once contained mare’s milk.
Domestication of the horse led to profound changes in human culture. Not only were they a source of meat and milk, but they opened new ways of transporting people and goods over longer distances. Domesticated horses made major contributions not only to farming and animal husbandry, but became valuable allies in war. Even today, especially in the regions of Kazakhstan and the Central Asian steppes, the horse remains an integral part of the local cultures.
For more about the horses of Kazakhstan go here
There is new information, however, that people living at a site known today as al-Maqar in the Arabian Peninsula may have domesticated horses around 9,000 years ago, or 4,000 years earlier than the Botai. Information is scanty so far, but the continued work at the site may be worth watching. Some information on the al-Maqar site may be found at this location.
Tuesday, July 17, 2012
Egypt’s Oldest Rock Art
When we think of Egypt, we think of the mighty civilization that arose with the pharaohs around 5500 years ago. The iconic art of Egypt also was thought to have developed around the same time, seeming to emerge full-blown without any sort of development phase.
But in July of 2007, engravings were found carved on sandstone cliff faces at the village of Quarts, about 400 miles (640 km) south of Cairo. Actually, they were rediscovered. They were originally found in 1962 by an expedition led by Philip Smith and a group from the University of Toronto, Canada. At the time, Smith suggested that the figures were carved some time before 10,000 years ago. His theory was roundly discredited, and he later abandoned it in later years. Now, finally, he has been proven right by the 2007 expedition led by Dirk Huyge, curator of the Egyptian Collection at the Royal Museums of Art and History in Brussels, Belgium.
The panels date back to about 15,000 years ago, which makes them contemporary to many of the artworks of Lescaux, France and Altamira in Spain. Not only that, but there are several striking similarities between the Egyptian engravings and those in Europe. For example, the cave paintings and engravings at Lascaux are best known for images of cows and bulls, and a large number of the Egyptian carvings also depict cattle. In addition, the European and Egyptian art works are stylistically very similar. Huyge carefully pointed out, however, that this does not mean that Egyptians created the art in Lascaux or Altamira, or that European artists created the Egyptian panels.
The Egyptian engravings are scattered over a one mile long (1.66 km) stretch of cliffs measuring about 230 feet (70 meters) tall. The 2007 expedition discovered several additional panels of artwork that had not been found by the 1962 expedition. And Huyge expects that more art will be found in North Africa. He also believes that some will be found to be even older than the Qurta panels.
To learn more, visit
But in July of 2007, engravings were found carved on sandstone cliff faces at the village of Quarts, about 400 miles (640 km) south of Cairo. Actually, they were rediscovered. They were originally found in 1962 by an expedition led by Philip Smith and a group from the University of Toronto, Canada. At the time, Smith suggested that the figures were carved some time before 10,000 years ago. His theory was roundly discredited, and he later abandoned it in later years. Now, finally, he has been proven right by the 2007 expedition led by Dirk Huyge, curator of the Egyptian Collection at the Royal Museums of Art and History in Brussels, Belgium.
The panels date back to about 15,000 years ago, which makes them contemporary to many of the artworks of Lescaux, France and Altamira in Spain. Not only that, but there are several striking similarities between the Egyptian engravings and those in Europe. For example, the cave paintings and engravings at Lascaux are best known for images of cows and bulls, and a large number of the Egyptian carvings also depict cattle. In addition, the European and Egyptian art works are stylistically very similar. Huyge carefully pointed out, however, that this does not mean that Egyptians created the art in Lascaux or Altamira, or that European artists created the Egyptian panels.
The Egyptian engravings are scattered over a one mile long (1.66 km) stretch of cliffs measuring about 230 feet (70 meters) tall. The 2007 expedition discovered several additional panels of artwork that had not been found by the 1962 expedition. And Huyge expects that more art will be found in North Africa. He also believes that some will be found to be even older than the Qurta panels.
To learn more, visit
Saturday, July 7, 2012
The World’s Oldest Ivory Sculpture
A carving of a reclining, voluptuous woman found in Germany’s Hohle Fels cave is dated to 35,000 years old is, for now at least, the world’s oldest ivory sculpture of a human figure.
Discovered in 2009, the little sculpture is about 2.4 inches (6 centimeters) long and has no head or feet. It bears a remarkable resemblance to the famous Venus figurines which have been found from the Pyrenees mountains to as far east as southern Russia, although those sculptures only date to about 25,000 to 29,000 years ago.
The little figurine was found in six fragments and has a loop near where the head should be. The left arm is missing but its discoverers hope to find it during further excavation work in the cave. It was likely designed to be worn as a pendant.
Because of the close resemblance between this ancient Venus and the hundreds of younger examples found across Europe, some experts believe it may represent the early beginnings of the "goddess" tradition which continued for many thousands of years. Others believe that since so much time had passed between the Hohle Fels sculpture and the much later figurines, the Hohle Fels sculpture is probably not related by tradition to the younger examples.
Hohle Fels cave and other nearby caves have yielded a variety of rich archaeological treasures, including carved ivory beads and pendants, along with other small ivory carvings of mammoths, bison, lions, horses and birds, along with two half-animal, half human figures.
If you’d like to see a few pictures of this little gem, go here
Discovered in 2009, the little sculpture is about 2.4 inches (6 centimeters) long and has no head or feet. It bears a remarkable resemblance to the famous Venus figurines which have been found from the Pyrenees mountains to as far east as southern Russia, although those sculptures only date to about 25,000 to 29,000 years ago.
The little figurine was found in six fragments and has a loop near where the head should be. The left arm is missing but its discoverers hope to find it during further excavation work in the cave. It was likely designed to be worn as a pendant.
Because of the close resemblance between this ancient Venus and the hundreds of younger examples found across Europe, some experts believe it may represent the early beginnings of the "goddess" tradition which continued for many thousands of years. Others believe that since so much time had passed between the Hohle Fels sculpture and the much later figurines, the Hohle Fels sculpture is probably not related by tradition to the younger examples.
Hohle Fels cave and other nearby caves have yielded a variety of rich archaeological treasures, including carved ivory beads and pendants, along with other small ivory carvings of mammoths, bison, lions, horses and birds, along with two half-animal, half human figures.
If you’d like to see a few pictures of this little gem, go here
Monday, July 2, 2012
Pavlopetri - The World’s Oldest Known Sunken Town
The ancient Mycenean city of Pavlopetri isn’t as old as some of the artifacts I’ve found, but it is unusual in that it is a planned and organized town with buildings, streets, courtyards, tombs and religious structures. It is about 5,000 years old, which is causing some to wonder whether it may in fact have been the real-life model for Homer’s lost city of Atlantis.
The sunken city lies on the ocean floor off the southern Peloponnesse near the town of Neapolis and is believed to have sunk around 1000 BC. Currently, it is known to occupy about 30,000 square meters of ocean floor. It was originally discovered in 1967 by a British oceanographer, but was finally properly surveyed by marine archaeologists with the aid of digital technology. It is believed to have sunk into the water when three earthquake episodes pushed the ground down, taking the town with it.
Remains found at the site have been dated from 2800 to 1200 BC, and include thousands of pottery sherds dating back to the end of the stone age. The richness of detail found in the remains of the town will keep archaeologists and anthropologists busy for years and will provide unprecedented insight into the lives and culture of the Mycenean people.
The site is only 3 to 4 meters deep in relatively clear water and can be accessed by divers using snorkels or air tanks. It is protected by Greece.
If you’re interested in in-depth information on Pavlopetri, go here and here
The sunken city lies on the ocean floor off the southern Peloponnesse near the town of Neapolis and is believed to have sunk around 1000 BC. Currently, it is known to occupy about 30,000 square meters of ocean floor. It was originally discovered in 1967 by a British oceanographer, but was finally properly surveyed by marine archaeologists with the aid of digital technology. It is believed to have sunk into the water when three earthquake episodes pushed the ground down, taking the town with it.
Remains found at the site have been dated from 2800 to 1200 BC, and include thousands of pottery sherds dating back to the end of the stone age. The richness of detail found in the remains of the town will keep archaeologists and anthropologists busy for years and will provide unprecedented insight into the lives and culture of the Mycenean people.
The site is only 3 to 4 meters deep in relatively clear water and can be accessed by divers using snorkels or air tanks. It is protected by Greece.
If you’re interested in in-depth information on Pavlopetri, go here and here
Subscribe to:
Posts (Atom)