Showing posts with label archeology. Show all posts
Showing posts with label archeology. Show all posts

Friday, October 30, 2009

World's Oldest Instrument

Bone Flute Found in Cave Is World's Oldest Instrument - Science News | Science & Technology | Technology News - FOXNews.com

Thursday, June 25, 2009




     AP
    June 24: Professor Nicholas Conard of the University in Tuebingen shows the flute during a press conference in Tuebingen, southern Germany.


    BERLIN —  A bird-bone flute unearthed in a German cave was carved some 35,000 years ago and is the oldest handcrafted musical instrument yet discovered, archaeologists say, offering the latest evidence that early modern humans in Europe had established a complex and creative culture.
    A team led by University of Tuebingen archaeologist Nicholas Conard assembled the flute from 12 pieces of griffon vulture bone scattered in a small plot of the Hohle Fels cave in southern Germany.
    Together, the pieces comprise a 8.6-inch (22-centimeter) instrument with five holes and a notched end. Conard said the flute was 35,000 years old.
    "It's unambiguously the oldest instrument in the world," Conard told The Associated Press this week. His findings were published online Wednesday by the journal Nature.
    Other archaeologists agreed with Conard's assessment.
    April Nowell, a Paleolithic archaeologist at the University of Victoria in Canada, said the flute predates previously discovered instruments "but the dates are not so much older that it's surprising or controversial."

    Nowell was not involved in Conard's research.
    The Hohle Fels flute is more complete and appears slightly older than bone and ivory fragments from seven other flutes recovered in southern German caves and documented by Conard and his colleagues in recent years.
    Another flute excavated in Austria is believed to be 19,000 years old, and a group of 22 flutes found in the French Pyrenees mountains has been dated at up to 30,000 years ago.
    Conard's team excavated the flute in September 2008, the same month they recovered six ivory fragments from the Hohle Fels cave that form a female figurine they believe is the oldest known sculpture of the human form.
    Together, the flute and the figure — found in the same layer of sediment — suggest that modern humans had established an advanced culture in Europe 35,000 years ago, said Wil Roebroeks, an archaeologist at Leiden University in the Netherlands who didn't participate in Conard's study.
    Roebroeks said it's difficult to say how cognitively and socially advanced these people were. But the physical trappings of their lives — including musical instruments, personal decorations and figurative art — match the objects we associate with modern human behavior, Roebroeks said.
    "It shows that from the moment that modern humans enter Europe ... it is as modern in terms of material culture as it can get," Roebroeks told The AP.
    He agreed with Conard's assertion that the flute appears to be the earliest known musical instrument in the world.
    Neanderthals also lived in Europe around the time the flute and sculpture were made, and frequented the Hohle Fels cave.
    Both Conard and Roebroeks believe, however, that layered deposits left by both species over thousands of years suggest the artifacts were crafted by early modern humans.
    "The material record is so completely different from what happened in these hundreds of thousands of years before with the Neanderthals," Roebroeks said. "I would put my money on modern humans having created and played these flutes."
    In 1995, archaeologist Ivan Turk excavated a bear bone artifact from a cave in Slovenia, known as the Divje Babe flute, that he has dated at around 43,000 years ago and suggested was made by Neanderthals.
    But other archaeologists, including Nowell, have challenged that theory, suggesting instead that the twin holes on the 4.3-inch-long (11-centimeter-long) bone were made by a carnivore's bite.
    Turk did not respond to an e-mail seeking comment.
    Nowell said other researchers have hypothesized that early humans may have used spear points as wind chimes and that markings on some cave stalactites suggest they were used as percussive instruments.
    But there is no proof, she said, and the Hohle Fels flute is much more credible because it's the oldest specimen from an established style of bone and ivory flutes in Europe.
    "There's a distinction between sporadic appearances and the true development of, in this case, a musical culture," Nowell said. "The importance of something like this flute is it shows a well-established technique and tradition."
    Conard said it's likely that early modern humans — and perhaps Neanderthals, too — were making music longer than 35,000 years ago.
    But he added the Hohle Fels flute and the others found across Europe strengthen evidence that modern humans in Europe were establishing cultural behavior similar to our own.

    Friday, May 1, 2009

    Bucintoro

    2008 February « Venice from beyond the bridge

    bucintoro venice

    The Bucintoro was the Doge's big parade boat. It was used the Ascension day, when a gold ring where dropped in to the sea as sign of the Republic power over the sea (Sposalizio del mare).

    The fist Bucintoro was build by the Republic in 1311, since then it was rebuilt 3 times. It was 35 meters long, 7 meters large and 9 meters high, with 42 oars and 168 oarsmen. The last one was destroyed by the French in 1789.

    Now there is a foundation that is trying to rebuilt it, they are looking sponsors for 15.000.000,00 euro.

    Friday, February 27, 2009

    Lion me


    Lion man, from Hohlenstein-Stadel, Germany
    Ulmer Museum, Ulm, Germany

    The oldest known zoomorphic statuette
    Aurignacian era, 30,000 BC-26,000 BC

    Thursday, February 5, 2009

    What's Old Is New: 12 Living Fossils

    What's Old Is New: 12 Living Fossils | Wired Science from Wired.com

    By Brandon Keim EmailDecember 05, 2008 | 4:57:14 PMCategories: Animals


    To navigate the currents of ecological fate, most creatures adapt — but a few have stuck to their evolutionary guns.

    Known as living fossils, they lasted for millions of years with barely a change, even as their relatives went extinct or took different paths across the tree of life.

    Many are now threatened or endangered. But with some luck and a little help, living fossils will be able to survive the age of humans, too.

    Purplefrog

    The Purple frog, discovered just five years ago in western India, likely escaped detection because it lives underground, emerging for just two weeks during the monsoon season. Distinguished by a pointed snout, it's related to a family of frogs now found only on the Seychelles islands, which split from India 100 million years ago.

    Image: WikiMedia Commons

    Scientists disagree over whether the frilled shark has survived for 380 milllion years, or a mere 95 million years. Only two living specimens have been found — both off the coast in Japan, in the late 19th century and again in 2007 — but they are sometimes caught accidentally by deep-sea fishing nets.

    Video: Xagtho Channel


    Jurassicshrimp

    Until a preserved specimen was found in the Smithsonian in 1975, the 10-footed, lobster-like Jurassic shrimp was thought to have gone extinct 50 million years ago. Living Jurassic shrimp have since been found.

    Image: Census of Marine Life

    Sikhotealiniazhiltzovae2Sikhotealinia zhiltzovae makes up for in uniqueness: it's the only three-eyed beetle. Some scientists consider it a forerunner of nearly all winged insects.
    What it lacks in convenient nomenclature, the Siberian

    Image: St. Petersburg Zoological Institute

    Found mostly in Southern Hemisphere rain forests, velvet wormstardigrades, their legs are hollow and supported by fluid pressure. After a few early adaptations for land, they've hardly changed in 360 million years.
    have legs and — unlike other worms — bear live young. Closely related to

    Video: InfiniteWorld

    Croc

    The most widespread of all living fossils, crocodiles have barely changed in the 230 million years since dinosaurs roamed the Earth.

    Image: Flickr/Keven Law

    One of the relatively few mammalian living fossils, duck-billed platypuses have been weird for 110 million years: in addition to their bills, they lay eggs and have venom-filled leg spurs. No wonder they were considered a hoax by early naturalists.

    Video: Springbreakwas2short

    Nautilus2

    Its spiraling chambered shell was a symbol of perfection in ancient Greece, and the nautilus has changed little in 500 million years.

    Image: Flickr/Ethan Hein


    Horseshoecrab

    Found commonly on Atlantic beaches, horseshoe crabs are more closely related to spiders, ticks and scorpions than crabs. Their ancestors evolved in the Paleozoic's shallow seas, and they've evolved only slightly in the last 445 million years. If you see one on its back, flip it over: They can regrow lost limbs, but can't right themselves when tossed in the surf.

    Image: Flickr/Chris Howard

    Mheureka

    Better known as the "Ant from Mars," Martialis heureka is a direct-line descendant of the last common ancestor of all ants — a subterranean forager who wouldn't go above-ground until flowering plants evolved 120 million years ago.

    Image: Christian Rabeling

    Coelacanth vanished from the fossil record 410 million years ago — and then one was caught in 1938 off the coast of South Africa. A second species was discovered in Indonesian waters in 1999.

    Video: Pinktentacle3

    Mantisshrimp_2

    Neither a mantis nor a shrimp, the mantis shrimp has changed little in 400 million years. It has the world's most complex eyes, and its prey-killing claw motion is the second-fastest animal motion. To quote mantis shrimp eye researcher Tom Cronin, "Whenever they get into any type of situation, they smash things. You can't pick these up. They're really great animals to have around."

    Image: Tom Cronin

    Tuesday, February 3, 2009

    Paper sparks fossil fury

    Paper sparks fossil fury : Nature News
    Published online 2 February 2009 | Nature | doi:10.1038/news.2009.60


    Palaeontologists criticize publication of specimen with questionable origin

    Rex Dalton

    Palaeontologists are criticizing a new article on an armoured dinosaur fossil because the 80-million-year-old specimen may have been taken illegally from the Gobi Desert. The prominent California neuroscientist who purchased the fossil five years ago says he will send it back, to China or Mongolia, if someone can demonstrate that laws were indeed broken.

    The 80-million-year-old specimen is of an ankylosaur.The 80-million-year-old specimen is of an ankylosaur.Western Paleontological Laboratories

    Vilayanur Ramachandran, who directs the Center for Brain and Cognition at the University of California, San Diego, says that he bought the skull for US$10,000 at the Tucson Gem, Mineral and Fossil Showcase in Arizona, long troubled by the sale of illegally-imported fossils (see 'The biggest, wildest fossil market in the west').

    Ramachandran, an amateur fossil collector, was walking around the displays with Clifford Miles, of Western Paleontological Laboratories near Salt Lake City, Utah, when Miles pointed out the perfectly preserved skull. "He said, 'You buy it, I'll name it after you,'" says Ramachandran.

    Miles did just that on 10 January, in an article1 in an Indian journal that names the bull-like ankylosaur Minotaurasaurus ramachandrani. But there is no clear paper trail that guarantees the fossil was acquired through legal channels; in fact, when it was cleaned in 2003 in Denver, the museum made sure the work was done outside the museum because of the fossil's suspect origin.

    "It is totally inappropriate to publish on this specimen; it is stolen patrimony," says Mark Norell, curator of vertebrate palaeontology at the American Museum of Natural History in New York, who does field work in Mongolia and China.

    Important origins

    Miles acknowledges that the specimen's provenance is questionable, but says that publishing its details will help shed more light on the fossil. "We need to publish on fossils like this so people can learn where they came from," he says.

    Miles and his brother, Clark, attempted to publish the fossil's description in 2006 in a Polish journal, but their submission was rejected because the fossil seemed to have been obtained illegally from Mongolia. Two years ago they described it as coming from the Barun Goyot Formation in Mongolia, but now say they "hit a dead end" in trying to confirm its origin.

    In Tucson, the fossil was displayed by Colorado cast-maker Robert Gaston for Hollis Butts, a dealer in Japan. Ramachandran says that he purchased it from Butts, who couldn't be reached for comment.

    Philip Currie, a palaeontologist at the University of Alberta in Edmonton, Canada, says that publishing work about such fossils only encourages the raging illegal trade. "This really flags a horrendous problem in Mongolia, where a frightening number of specimens are smuggled abroad," says Currie. Bolortsetseg Minjin, who directs the Institute for the Study of Dinosaurs in Ulaanbaatar, Mongolia, says that the rock the skull is encased in suggests it probably came from Mongolia. "It should be sent back," says Minjin, who is also a postdoctoral researcher at the Museum of the Rockies in Bozeman, Montana.

    Ramachandran says that he would be happy to repatriate the fossil to the appropriate nation, if someone shows him "evidence it was exported without permit". For now, the specimen rests at the Victor Valley Museum, an hour's drive east of Los Angeles in the isolated town of Apple Valley.

    Ancient mineral shows early Earth climate tough on continents

    June 13, 2008

    by Jill Sakai

    A new analysis of ancient minerals called zircons suggests that a harsh climate may have scoured and possibly even destroyed the surface of the Earth's earliest continents.

    Zircons, the oldest known materials on Earth, offer a window in time back as far as 4.4 billion years ago, when the planet was a mere 150 million years old. Because these crystals are exceptionally resistant to chemical changes, they have become the gold standard for determining the age of ancient rocks, says UW-Madison geologist John Valley.

    Zircon in geological context

    A timeline shows the geological context of Jack Hills zircons, ancient minerals that formed when the Earth was less than 500 million years old.

    Illustration: Andree Valley

    Valley previously used these tiny mineral grains — smaller than a speck of sand — to show that rocky continents and liquid water formed on the Earth much earlier than previously thought, about 4.2 billion years ago.

    In a new paper published online this week in the journal Earth and Planetary Science Letters, a team of scientists led by UW-Madison geologists Takayuki Ushikubo, Valley and Noriko Kita show that rocky continents and liquid water existed at least 4.3 billion years ago and were subjected to heavy weathering by an acrid climate.

    Ushikubo, the first author on the new study, says that atmospheric weathering could provide an answer to a long-standing question in geology: why no rock samples have ever been found dating back to the first 500 million years after the Earth formed.


    Pictured is a false-color microscope image of a 4-billion-year-old zircon, a tiny mineral used to study the ancient rocks in which it formed. Chemical analysis of this crystal by UW-Madison geologists Takayuki Ushikubo and John Valley suggests that rocky continents and liquid water existed on Earth at least 4.3 billion years ago. Evidence of heavy weathering by a harsh climate may help explain why no rock samples older than 4 billion years have ever been found.

    Photo: courtesy Mary Diman and John Valley


    "Currently, no rocks remain from before about 4 billion years ago," he says. "Some people consider this as evidence for very high temperature conditions on the ancient Earth."

    Previous explanations for the missing rocks have included destruction by barrages of meteorites and the possibility that the early Earth was a red-hot sea of magma in which rocks could not form.


    Jack Hills area



    Outcrop containing 4.4 billion year old zircons. Eranondoo Hill.





    The current analysis suggests a different scenario. Ushikubo and colleagues used a sophisticated new instrument called an ion microprobe to analyze isotope ratios of the element lithium in zircons from the Jack Hills in western Australia. By comparing these chemical fingerprints to lithium compositions in zircons from continental crust and primitive rocks similar to the Earth's mantle, they found evidence that the young planet already had the beginnings of continents, relatively cool temperatures and liquid water by the time the Australian zircons formed.

    "At 4.3 billion years ago, the Earth already had habitable conditions," Ushikubo says.

    The zircons' lithium signatures also hold signs of rock exposure on the Earth's surface and breakdown by weather and water, identified by low levels of a heavy lithium isotope. "Weathering can occur at the surface on continental crust or at the bottom of the ocean, but the [observed] lithium compositions can only be formed from continental crust," says Ushikubo.

    The findings suggest that extensive weathering may have destroyed the Earth's earliest rocks, he says.

    "Extensive weathering earlier than 4 billion years ago actually makes a lot of sense," says Valley. "People have suspected this, but there's never been any direct evidence."

    Carbon dioxide in the atmosphere can combine with water to form carbonic acid, which falls as acid rain. The early Earth's atmosphere is believed to have contained extremely high levels of carbon dioxide — maybe 10,000 times as much as today.



    Geologic map of the Jack Hills sedimentary belt. Eranondoo Hill is the site of the outrcrop that contained 4.4 Ga zircons







    "At [those levels], you would have had vicious acid rain and intense greenhouse [effects]. That is a condition that will dissolve rocks," Valley says. "If granites were on the surface of the Earth, they would have been destroyed almost immediately — geologically speaking — and the only remnants that we could recognize as ancient would be these zircons."

    Additional information and images are available on the authors' Web sites Zircons Are Forever and the Wisc-SIMS ion microprobe facility.

    Other co-authors on the paper include Aaron Cavosie of the University of Puerto Rico, Simon Wilde of the Curtin University of Technology in Australia and Roberta Rudnick of the University of Maryland.

    World's oldest crystals get protection

    Published online 30 January 2009 | Nature | doi:10.1038/news.2009.69

    Australian geoheritage reserve will save ancient zircons from abuse.

    An outcrop of rock in Western Australia holding the planet's oldest discovered minerals is set to be declared a geoheritage reserve, saving it from any future mining activity.

    The Jack Hills reserve, which won approval from the regional government last month, will encompass a few tens of square kilometres, including a small outcrop of just a few metres holding 4-billion-year-old crystal grains called zircons.

    Sunday, November 16, 2008

    Stone Age Temple May Be Birthplace of Civilization


    Friday, November 14, 2008

    It's more than twice as old as the Pyramids, or even the written word. When it was built, saber-toothed tigers and woolly mammoths still roamed, and the Ice Age had just ended.

    The elaborate temple at Gobelki Tepe in southeastern Turkey, near the Syrian border, is staggeringly ancient: 11,500 years old, from a time just before humans learned to farm grains and domesticate animals.

    According to the German archaeologist in charge of excavations at the site, it might be the birthplace of agriculture, of organized religion — of civilization itself.

    "This is the first human-built holy place," Klaus Schmidt of the German Archaeological Institute says in the November issue of Smithsonian magazine.

    Schmidt and his colleagues say no evidence of permanent settlement has been found at the site, although there are remains of butchered animals and edible plants.

    However, all of the bones are from wild animals, and all the vegetation from wild plants. That means the massive structure was built by a hunter-gatherer society, not a settled agricultural one.

    Yet the three dozen T-shaped standing limestone monoliths arranged around the site are 10 feet high, weigh several tons each and bear detailed, stylized carvings of foxes, scorpions, lions, boars and birds. The builders may not have been farmers, but they weren't primitive.

    Massive amounts of manpower would have been needed to build the site, a logistical problem that may have spurred the builders to begin planting grain and herding wild sheep, Schmidt thinks.

    Wild grain ancestral to modern wheat grows nearby, and the site itself is just outside the city of Sanliurfa, known as Edessa to the Crusaders — and which locals say is the Biblical city of Ur, birthplace of Abraham. The Euphrates flows eighty miles to the west, putting Gobelki Tepe smack in the middle of the Fertile Crescent.

    "This shows sociocultural changes come first, agriculture comes later," Stanford archaeologist Ian Hodder tells Smithsonian magazine. "You can make a good case this area is the real origin of complex Neolithic societies."

    • Click here to read more about this in Smithsonian magazine.

    • Click here to read a 2006 article about Gobelki Tepe in The First Post.

    • Click here for the official German Archaeological Institute Web page (in English).

    • Click here to visit FOXNews.com's Archaeology Center.