| 单词 | carbon dating |
| 例句 | More precise dates did not come in until the 1950s, when Willard F. Libby, a chemist at the University of Chicago, invented carbon dating. 1491 2005-10-10T00:00:00Z No matter what the location of a site, carbon dating showed that it was occupied between 13,500 and 12,900 years ago. 1491 2005-10-10T00:00:00Z By that time, carbon dating was already revolutionizing archaeology. 1491 2005-10-10T00:00:00Z Working before the invention of carbon dating, they had no way to determine Aspero’s age. 1491 2005-10-10T00:00:00Z But the Switzerland-based Mona Lisa Foundation, which manages the painting, says historical evidence, other expert opinions and carbon dating and further scientific tests point to its authenticity. 'Earlier Mona Lisa' goes on display 2014-12-16T05:00:00Z According to results of carbon dating and other analyses released Friday, one set of bones is compatible with Caravaggio's remains. Italians say they may have found Caravaggio bones 2010-05-14T17:31:00Z After that date, U.S. atomic tests on Pacific atolls threw elevated levels of carbon-14 in the atmosphere, mangling the precision of carbon dating dead plants and animals. A boatload of ideas are packed into Simon Winchester's literary cruise across Pacific Rim's recent history 2015-11-20T05:00:00Z This is because it's believed that the bottle was produced between the years of 1762 and 1802 based on carbon dating performed by the University of Georgia. Bottle of what might be the world's oldest whiskey will be up for auction this summer 2021-04-28T04:00:00Z These remains are being transferred to laboratories in universities around Italy for analysis, including carbon dating. Italian group hopes to find Caravaggio's bones 2010-04-08T14:55:00Z “I don’t do online dating. I do carbon dating.” Four Stand-Up Specials That Punch Above Their Weight 2023-03-31T04:00:00Z Although it’s usually possible to tell vandalism from the original pictograph, the only way to date rock art is by carbon dating, a scientific analysis that requires sampling the paint and produces mixed results. In Texas’s Hueco Tanks State Park, the native art really rocks We know, thanks to carbon dating, that it was put together in the early fifteenth century. The Unsolvable Mysteries of the Voynich Manuscript 2016-11-30T05:00:00Z Later we’re in a room explaining that Noah’s flood caused the Grand Canyon, and that carbon dating is a flawed, inconsistent process. My return to the Creation Museum 2012-07-31T00:00:00Z At the other end of the timescale, carbon dating is used for the first time in 1947 to establish the antiquity, and in many cases the reality, of historical artifacts. Weird suburbia: How atomic bombs and UFOs created modern America 2014-03-16T18:00:00Z The first involves the development of a technique known as ultra-filtration carbon dating. Bones from a Cheddar Gorge cave show that cannibalism helped Britain's earliest settlers survive the ice age 2010-06-19T23:05:00Z Q: In the book, you talk about the fact that scientists can now measure the age of cairns through carbon dating and other techniques. Author David B. Williams stacks up interesting facts about cairns 2012-11-05T19:28:06Z Digging for something under a stack of papers, you find a dirtycoffee mug that’s been there so long it’s eligible for carbon dating. Why walking through a doorway makes you forget 2014-01-06T11:50:00Z However, Newton agreed with Ussher well before scientists knew about radioactive or carbon dating and before Darwin discovered natural selection. Neil DeGrasse Tyson reveals age of Earth, creationists’ heads collectively explode 2014-04-25T11:50:00Z The researchers conducted carbon dating and DNA testing on the bones. Italians think they have found Caravaggio's bones 2010-06-16T14:52:00Z By modeling this age-roughness relationship, with information from landslides dated by other means such as carbon dating, researchers can estimate when a particular landslide took place. New dates for landslides reveal past Seattle fault earthquakes 2023-11-07T05:00:00Z After the chart was purchased, Clausen sent it to a lab in New York that took a scientific approach to dating, analyzing pigments and performing carbon dating on a small piece of the parchment. A $7.5-million find: Overlooked Getty estate sale map turns out to be 14th century treasure 2023-10-25T04:00:00Z Maussan shared on social media and in his presentation the results of DNA and carbon dating tests that he said he commissioned on "the beings." A close encounter with the 'alien bodies' in Mexico 2023-09-16T04:00:00Z They also assessed isotope levels and performed carbon dating to learn more about when and where individuals lived. In a Stone Age Community, Women Moved While Men Stayed with Family 2023-08-10T04:00:00Z The remains have been photographed, labelled, and boxed up before being taken away for further analysis, including carbon dating. Roman shrine discovered near Leicester cathedral graveyard 2023-03-07T05:00:00Z "It's likely that many of the early attempts at carbon dating were contaminated by modern DNA rubbing off the fingers of the scientists handling the exhibits," he said. Red Lady of Paviland: Should remains come back to Wales? 2023-01-13T05:00:00Z Berger’s lecture, accompanied by photographs from the cave but not by carbon dating and other traditional scientific methods, drew criticism, as have some of his previous assertions about the H. naledi fossils. Ancient human relative used fire, surprising discoveries suggest 2022-12-05T05:00:00Z But the Tel Lachish comb was found in a much later archaeological context, and carbon dating failed to determine its exact age, the article notes. Israeli archeologists find ancient comb with ‘full sentence’ 2022-11-09T05:00:00Z The tree-ring record contained in old bristlecones has helped scientists refine carbon dating and provides an important history of the Earth’s climate. Why mystery surrounds what may be Earth’s oldest tree 2022-10-16T04:00:00Z In this study, researchers used DNA and carbon dating techniques to show that some of that stored material is now in the hands of smugglers. Ivory seized decades ago still turning up in raids 2022-10-17T04:00:00Z Based on carbon dating, scientists estimate this pygmy mammoth died 11,000 years ago. Biology for AP Courses 2022-06-09T00:00:00Z Give an example in which carbon dating would be useful. College Algebra with Corequisite Support 2020-09-23T00:00:00Z One of the most common applications of an exponential decay model is carbon dating. Calculus, Volume 1 2016-03-30T00:00:00Z Through the use of carbon dating, scientists can reconstruct the ecology and biogeography of organisms living within the past 50,000 years. Environmental Biology 2018-09-06T00:00:00Z Early applications of carbon dating assumed the production and concentration of 14C in the atmosphere remained fairly constant for the last 50,000 years. An Introduction to Geology 2017-01-01T00:00:00Z So the researchers extracted samples of the underwater sponge “oasis” to figure out how the animals were surviving—some were several centuries old, carbon dating revealed. These sponges survive the deep sea by feeding on remains of long-dead animals 2022-02-08T05:00:00Z Further carbon dating is to be carried out on the remains to determine its age. Pre-Inca mummy found in Peru 2021-11-27T05:00:00Z Actually, a geologist — what does the carbon dating reveal about their only trophy? That Strange Feeling Going Around New York Is Optimism 2021-02-23T05:00:00Z Researchers using high-resolution carbon dating and paleoecological records are now studying the expansion and development of peat in the Arctic tundra and the implications of an increase in peat on the region’s carbon cycle. 10 million snowblowers? Last-ditch ideas to save the Arctic ice 2020-10-20T04:00:00Z Taking into account carbon-14 baseline levels must be calibrated against other reliable dating methods, carbon dating has been shown to be a reliable method for dating archaeological specimens and very recent geologic events. An Introduction to Geology 2017-01-01T00:00:00Z Scientists will conduct carbon dating tests to determine the whale bones' age. Ancient whale bones unearthed beneath Edinburgh construction site 2020-06-19T04:00:00Z Researchers use data from tree rings, sediment layers and other samples to calibrate the process of carbon dating.Credit: Carbon dating, the archaeological workhorse, is getting a major reboot 2020-05-18T04:00:00Z The team said carbon dating suggested it was likely to be Pictish, dating back as far as the third century AD. Ancient hillfort one of 'largest ever' 2020-05-14T04:00:00Z Scientists also developed a way of "carbon dating" mutations. Landmark study to transform cancer treatment 2020-02-05T05:00:00Z The police were then called to the location, as were archaeologists, who used carbon dating to confirm the bones are from between 635-685 A.D. 1,400-year-old 'eerie' human remains found under former English nursing home 2020-01-08T05:00:00Z She lived near the lagoon, itself protected from the open sea by shifting sand barriers, about 5,600 years ago, according to carbon dating of the birch tar. Discarded Neolithic chewing gum helps recreate image of ancient Dane 2019-12-17T05:00:00Z They were eventually tracked down to Somerset before undergoing carbon dating. 'Lost' human bones 'as old as Cheddar Man' 2019-09-27T04:00:00Z The Japanese government last month began requiring domestic traders to prove the age of tusks via carbon dating in a bid to prevent illegal imports. Yahoo Japan to end ivory sales: sources 2019-08-28T04:00:00Z A human femur, thought to be from medieval times, being sampled for carbon dating.Credit: Radiocarbon revolution: the story of an isotope 2019-06-16T04:00:00Z The skulls and bones stored under the church date from 1250 to 1900, with radio carbon dating used to establish the age. Medieval crypt skull had 'blow to head' 2019-06-09T04:00:00Z In a bid to deflect criticism, the government will require carbon dating to register tusks starting in July, seeking to prevent newly poached tusks from entering the market. Japan is still hungry for ivory. The reason is a personal stamp called a hanko. 2019-04-25T04:00:00Z He says there is no dispute among scientists over the shroud’s origins: historical records and carbon dating show it was created in medieval times. Researchers hung men on a cross and added blood in bid to prove Turin Shroud is real 2019-02-15T05:00:00Z This discovery, confirmed in the 1950s after the discovery of carbon dating, meant that the ancient forests of Puget Sound were less than 10,000 years old. The real Seattle Freeze: ‘Cruisin’ the Fossil Coastline’ explores the compelling topography of the Puget Sound landscape 2019-01-31T05:00:00Z Second, carbon dating requires removing a small sample of the paint itself; archaeologists are often reluctant to destroy even a tiny part of these ancient and rare pieces of art. The world’s oldest cave paintings were probably made by Neanderthals 2018-12-16T05:00:00Z Another test is to measure the rate of radioactive decay of certain elements in the rocks, also known as carbon dating. Scientists study lava for clues to how volcano will behave 2018-05-16T04:00:00Z Scientists have used carbon dating to determine that a fire pit found below 10 feet of dirt at Cascadia Cave is 8,000 years old. Trip to Oregon’s Cascadia Cave brings archaeology to life 2018-05-12T04:00:00Z But carbon dating revealed the people died five centuries ago. 500-year-old skeletons headed for Native American tribes 2018-05-04T04:00:00Z The wildlife detective work involves cutting up seized artifacts including bangle bracelets and statues of Chinese deities and subjecting them to carbon dating to determine when the elephants were killed. Seized ivory probed for clues that could help save elephants 2018-01-15T05:00:00Z Finally, carbon dating is unreliable for objects older than 50,000 years, which all three of these pieces are. The world’s oldest cave paintings were probably made by Neanderthals 2018-12-16T05:00:00Z The next step was to try carbon dating on the remains, to see if that provides any more clues. Unsolved Science Mysteries From 2017 2017-12-18T05:00:00Z This is where the biology of the bird, challenges some recent carbon dating of the rocks of the island. The other Dodo: Extinct bird that used its wings as clubs 2017-12-01T05:00:00Z In a 2007 interview with National Geographic, the senior Alva claimed the carbon dating made it the oldest known mural in the Americas. Fire Scorches Ancient Peruvian Temple 2017-11-13T05:00:00Z Researchers at the University of Oxford's Bodleian Library recently conducted carbon dating on an ancient Indian text known as the Bakshali manuscript. Ancient Text Reveals New Clues to the Origin of Zero 2017-09-16T04:00:00Z Techniques such as carbon dating, which can determine the age of an artifact, can be done only by removing small portions of the skull, which the Catholic Church has not allowed. Is This the Face of Mary Magdalene? 2017-09-12T04:00:00Z Artifacts and carbon dating indicate the Mississippians only stayed in the area for half a century, later settling in Aztalan in southeast Wisconsin. Excavations in Wisconsin reveal Mississippians’ history 2017-06-09T04:00:00Z Subsequent carbon dating of the vellum, and evidence of the hint of a fingerprint that appeared to match Leonardo’s, provided the almost-clinchers. 'I wasn’t cock-a-hoop that I’d fooled the experts': Britain's master forger tells all 2017-05-27T04:00:00Z Never mind that archaeologists and carbon dating had confirmed the obvious: that the monument was constructed by the ancestors of the Africans living nearby. Zimbabwe’s Rulers Use a Monument’s Walls to Build a Legacy 2017-02-21T05:00:00Z Even without carbon dating, it is easy to disinguish medieval masterpieces from crude modern imitations. Ivory tells the history of the world – it must never be banned 2017-02-16T05:00:00Z The next step in documenting and studying the pictographs will be carbon dating, to determine when the art was created, Rupp said. 'Remarkable' pictographs cover boulder in remote Rancho Guejito 2016-12-22T05:00:00Z Researchers at Durham University used carbon dating to discover the age of the tooth and isotope analysis on the enamel. Dog tooth found near Stonehenge 'evidence of earliest journey' - BBC News 2016-10-06T04:00:00Z One of the newer ones is the use of carbon dating to determine how long ago an elephant was killed. Nuclear Weapons Tests Can Help Fight Elephant Poaching 2016-10-05T04:00:00Z Archaeologists, starting as early as 1905, said that local Africans had erected the Great Zimbabwe, a conclusion reinforced by carbon dating and other scientific developments over the decades. Zimbabwe’s Rulers Use a Monument’s Walls to Build a Legacy 2017-02-21T05:00:00Z That's a sign the asteroid is rich in carbon dating back to the origin of the solar system 4.5 billion years ago. Asteroid Bennu getting first visitor in billions of years 2016-09-07T04:00:00Z That’s a sign the asteroid is rich in carbon dating back to the origin of the solar system 4.5 billion years ago. Asteroid Bennu getting first visitor in billions of years 2016-09-07T04:00:00Z Using carbon dating techniques usually reserved for archaeology, researchers now estimate that a large Greenland shark was up to 392 years of age when it died -- the longest lifespan of any vertebrate on Earth. Granddaddy of Sharks May Live to 400 2016-08-15T04:00:00Z In one scene that we didn’t include in the film, he cut the staff in half, to try to date it by rings or carbon dating. Searching for Buried Treasure in the Scottish Highlands 2016-08-15T04:00:00Z Radio carbon dating found some skulls were older than first thought. Rothwell bone crypt: Skulls dated from 1250 to 1900 - BBC News 2016-08-08T04:00:00Z Initial analysis suggests Montserrat’s petroglyphs are between 1,000 and 1,500 years old, Francis said, though carbon dating will paint a clearer picture of the images’ origins. Hikers on Caribbean island of Montserrat find ancient stone carvings 2016-06-03T04:00:00Z The researchers excavated a cylindrical sample of soil and used carbon dating to establish that its layers dated back 8,000 years. Mystery of Hannibal’s path across the Alps to Rome may be solved by ancient poop 2016-04-08T04:00:00Z A dispute over whether a rare early Koran dates from the Prophet Muhammad's lifetime is the latest controversy related to carbon dating. Dating dispute over 'oldest Koran' - BBC News 2016-02-08T05:00:00Z If you accept carbon dating, then the biblical timeline doesn’t work. Jonathan Aberman: The technology that unites us can also divide us 2015-11-23T05:00:00Z The carbon dating, done by a lab in Florida, found that the logs Yunker uncovered were living trees in the 1950s because they contained extra carbon 14, released during thermo-nuclear bomb testing in that era. Washburn man believes have might have found Fort Mandan 2015-10-18T04:00:00Z The only way to firmly date ivory is based on carbon dating and DNA tests, which are costly and require cutting into the ivory. Push to save African elephants stirs U.S. clash over antique ivory trade 2015-09-14T04:00:00Z Tests like carbon dating will allow accurate dating of the fossils, but these will destroy the samples and will have to wait until the bones have been studied more thoroughly. New species of ancient human discovered in South African cave 2015-09-10T04:00:00Z In one of the first major carbon dating tests, linen from the same caves as the scrolls was found to date from AD33, plus or minus 200 years. Dating dispute over 'oldest Koran' - BBC News 2016-02-08T05:00:00Z Some tests, such as carbon dating, will destroy the material, and will only be tried once the bones have been studied more closely. Homo naledi: new species of ancient human discovered, claim scientists 2015-09-10T04:00:00Z Using aluminum rods, the students pushed the tube 4½ feet and, as Dr. Stager would calculate with carbon dating, 2,200 years into the lake’s past. The One About the Invading Perch Turns Out to Be a Fish Tale 2015-07-28T04:00:00Z Radio carbon dating found the manuscript was at least 1,370 years old, putting it among the earliest in existence. 'World's oldest' Koran: Birmingham reacts to discovery - BBC News 2015-07-22T04:00:00Z The true age of the skeleton emerged soon after, when carbon dating of a bone fragment put the man at 9,000 years old. DNA analysis reignites fierce debate over fate of 9,000-year-old skeleton 2015-06-18T04:00:00Z But genetic tests showed that that fragment belonged to a wolf, and subsequent carbon dating put it around 35,000 years old. Family Tree of Dogs and Wolves Is Found to Split Earlier Than Thought 2015-05-21T04:00:00Z His teammates were wise enough not to pile on top of his body which may soon need carbon dating to determine origin. Paul Pierce’s shot salvages fourth-quarter collapse 2015-05-10T04:00:00Z Fossil finds span two ice ages, DeStefano said, and Willard Libby, winner of the Nobel Prize for chemistry in 1960, conducted groundbreaking research on carbon dating of fossils at the site 50 years ago. Ceremony marks new national monument in Nevada 2014-12-22T05:00:00Z The team used carbon dating to determine that the female mammoth, nicknamed Buttercup, lived about 40,000 years ago. Fresh Mammoth Carcass From Siberia Holds Many Secrets 2014-11-17T05:00:00Z Using new carbon dating techniques and mathematical models, researchers examined about 200 samples found at 40 sites from Spain to Russia, according to a study published in the journal Nature. Neanderthals walked among us – study 2014-08-20T04:00:00Z This is in sharp contrast with the approximate ages yielded by techniques such as carbon dating. The World Trade Center Ship Gets Its Birth Date 2014-08-07T04:00:00Z "In the 1980s, there wasn't much money and modern scientific techniques available today, like carbon dating, were then quite expensive and certainly beyond the reaches of a small provincial archaeology unit," Mr Kenny said. Tests on 4,000-year-old skeleton 2014-04-11T14:51:30Z It is not clear whether experts will rely on radio carbon dating to assess the remains. India probe into '1857 rebel' bodies 2014-03-03T09:03:42Z In a February essay in The Times Literary Supplement, Mr. Obbink outlined a verification process that included multi-spectral photography and carbon dating. Op-Ed Contributor: Papyrus, Provenance and Looting 2014-03-02T23:29:19Z The oldest algae crusts contained 646 years of layers, confirmed by carbon dating, the researchers said. Ancient Arctic Algae Record Climate Change in 'Tree Rings' 2013-11-18T23:45:00.493Z We've been carbon dating the sediment the boats were found in to try and create a detailed chronology of the river channel that once ran from the Midlands to the North Sea. Bronze Age boats reveal secrets 2013-09-08T08:12:08Z ‘We invented carbon dating just to undermine the Bible!’ My 3 Minutes at the Bar with Ricky Gervais 2013-04-25T06:40:00Z And carbon dating of material found at the site show people were there during every millennium in between. Stonehenge: The Missing Link 2013-04-19T06:13:35Z Each eruption has a distinct chemical signature that, along with conventional methods of carbon dating, can be used to associate each layer of volcanic material with a particular eruption. Tambora Erupts in 1815 and Changes World History [Excerpt] 2013-03-01T18:45:00.280Z Charlier was not allowed access to heart-residue samples large enough for carbon dating or genetic analysis, but he insists that the regal provenance of the samples is not in doubt. Forensic Exam of King Richard the Lionheart Reveals Embalming Practices 2013-03-01T18:15:00.213Z In addition, the context of the injuries, logistics of the battle, radio carbon dating and food consumption patterns were all contextual data points used in the formula to confirm Richard’s identity. King Richard III: Villain, Hero, or Tragic Victim of Identity Theft? 2013-02-15T13:20:52Z But the team cited other pieces of evidence, including the location of the burial; the fact that the body had apparently suffered numerous wounds; carbon dating; and mitochondrial DNA. Seven days: 1–7 February 2013 2013-02-06T18:20:41.560Z On Monday, it was announced a study of the bones, along with DNA and carbon dating tests, proved "beyond reasonable doubt" the skeleton was Richard III. City plans for Richard III legacy 2013-02-06T07:43:28Z Precise carbon dating of dried human faeces discovered alongside the stone specimens tied down their antiquity. Early Americans' two tool tech 2012-07-13T08:30:07Z "But I'm really interested in applying radio carbon dating more widely to find out information about the past." DNA bolsters Bulgaria's John the Baptist bones claim 2012-06-15T14:05:22Z Frisén and his colleagues invented their carbon dating technique in part to overcome these frustrations. How Nuclear Fallout Casts Doubt on Renewal of Some Adult Brain Cells 2012-06-07T16:15:02.790Z Scientists used a technique called carbon dating to show that the flutes were between 42,000 and 43,000 years old! 43,000-year-old music flute found 2012-05-25T12:36:33Z The date of Bob’s burial was determined through carbon dating his skeleton and also by looking at the structure and architecture of the surrounding ancient houses. Ancient Bacteria - the saga continues 2012-05-17T14:45:10.190Z After returning and graduating, he enrolled at Chicago, where he studied with Willard F. Libby, who later won the 1960 Nobel Prize for his work on carbon dating. F. Sherwood Rowland, 84, Dies; Raised Alarm Over Aerosols 2012-03-13T04:30:49Z Digging for something under a stack of papers, you find a dirty coffee mug that’s been there so long it’s eligible for carbon dating. Why Walking Through A Doorway Makes You Forget 2011-12-13T13:15:00.203Z A new study relying on a unique form of carbon dating suggests that neurons born during adulthood rarely if ever weave themselves into the olfactory bulb's circuitry. How Nuclear Fallout Casts Doubt on Renewal of Some Adult Brain Cells 2012-06-07T16:15:02.790Z Dating sediments using ragweed and nuclear fallout The researchers determined the age of each chunk by carbon dating, possible because the sediment is rich in decomposed plant matter. Warming Accelerates Sea Level Rise on U.S. East Coast 2011-06-21T15:15:00.250Z But, they said, there were no plans to do any carbon dating to check when the burials took place. Maoist mass grave found in India 2011-06-13T04:41:37Z It relies in part on radio carbon dating - counting the amount of a radioactive type of carbon atom in decaying matter. Neolithic boom 2011-06-06T00:30:24Z Geologists also use carbon dating and other techniques to estimate the time and scale of older earthquakes. At U.S. Nuclear Sites, Preparing for the Unlikely 2011-03-28T16:27:46Z Frisén and his colleagues analyzed the DNA with a unique form of carbon dating, the technique that paleontologists use to date the fossils and remains of ancient creatures. How Nuclear Fallout Casts Doubt on Renewal of Some Adult Brain Cells 2012-06-07T16:15:02.790Z The age of the finds was set through carbon dating and uncovering archaeological layers. Ancient winemaking operation unearthed in Armenian cave 2011-01-11T05:19:00Z Correction: January 5, 2011 Due to an editing error, an earlier version of this post incorrectly described an isotopic dating process as carbon dating. Scientist at Work: Eureka! A Fossil Bone, and Water Ferns to Boot 2011-01-05T19:54:20Z On its own carbon dating is imprecise, but when it is cross-reference with documented events it allows researchers to more accurately date artefacts. Neolithic boom 2011-06-06T00:30:24Z Geologists at Rhode Island's Brown University used carbon dating to measure the age of sediments on the lake floor. Africa's lake Tanganyika warming fast, life dying 2010-05-16T17:01:00Z Tests in 1988 suggested that it dated from the Middle Ages, but those carbon dating findings are contested. Pontiff in Turin to view shroud 2010-05-02T14:34:00Z Tests in 1988 suggested it dated from the medieval period but those carbon dating findings are contested. Turin Shroud goes on public show 2010-04-10T14:47:00Z But for journalists, the move may not be that significant, other than the daunting prospect of sorting through old notebooks, budget documents, partially eaten snacks and other souvenirs that may require carbon dating. New York City Council to Lose Its Home, Temporarily 2010-03-26T00:27:00Z For reporters, anyway, the move may not be that seismic, other than the daunting prospect of sorting through old notebooks, budget documents, partially eaten snacks and other souvenirs that may require carbon dating. City Council to Lose Its Home (Temporarily) 2010-03-24T22:25:00Z Fossil remains have been found, and their location and carbon dating signaled back to us. Oberheim (Voices) |
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