How To Use Radiocarbon In A Sentence
-
Radiocarbon dating of pottery and other Copper Age finds pushes back the origins of the Maikop and Kura-Arax cultures by nearly 1,000 years, Areshian says.
Evidence for Ritual Sacrifice at Armenian Cave Site
-
But several factors affect the accuracy of radiocarbon dating.
-
The kurgan, about 69 feet in diameter, has been radiocarbon dated to 2500-2300 B.C.
Cudgel Culture
-
Living organisms acquire a characteristic minor fraction of radiocarbon by equilibrating with the carbon dioxide of ambient air or surrounding waters.
-
Because of the difficulties associated with radiocarbon dating, each new date is given a statistical margin of error.
-
Radiocarbon dating was still in the future, so archaeologists used relative methods of dating such as stratigraphy and stone tool typologies to deduce the age of a site.
Drawn to Archaeology
-
Scholars have cast doubt on the Shroud of Turin's authenticity, citing scientific evidence such as radiocarbon testing that date it to medieval times.
Ireland.com Breaking News
-
If dated by conventional radiocarbon, it would have been totally destroyed during measurement.
-
When comparing radiocarbon dates with dates derived from tree rings, known as dendrochronological dating, the dates only agree accurately as far back as A.D. 640, and only generally well back to the time of Christ.
Signs of the Times
-
The researchers used radiocarbon dating on 22 pieces of microscopic charcoal found among Neandertal tools in fire pits in Gorham Cave.
-
The radiocarbon-dated feature that produced the wild rice was located at the bottom of an undisturbed Late Woodland midden that had been capped with a layer of sterile sand.
-
The technique the scientists use is known as radiocarbon dating and is more commonly used by archaeologists to date ancient fragments of bone and wood.
Latest News Breaking News and Current News from the UK and World Telegraph
-
All radiocarbon samples should be sealed within a clean container such as a plastic bag at the time of recovery.
-
Radiocarbon-dated pollen, rhizopod, chironomid and total organic carbon (TOC) records from Nikolay Lake (73j20VN, 124j12VE) and a pollen record from a nearby peat sequence are used for a detailed environmental reconstruction of the Holocene in the Lena Delta area.
Warmest in a Millll-yun Years « Climate Audit
-
`Remember what Armand said about using the mount from an old potboiler to fool the radiocarbon dating?
ALASTAIR MCLEAN'S 'NIGHT WATCH'
-
However, a finite radiocarbon ‘age’ for this fossil wood is neither inconsistent nor unexpected within a Creation / Flood framework of Earth history.
-
Weizmann archaeology researchers have a laboratory on the site here, along with equipment to study archaeometallurgy, ancient DNA, radiocarbon dating and micromorphology, the microscopic structures found in organisms and soil.
NYT > Home Page
-
Carbon dating (aka radiocarbon dating) is pretty reliable, when the samples are good, up to 30 or 40 thousand years ago, and in some cases the method can be extended to just over 100 thousand years ago.
ScienceBlogs Channel : Life Science
-
We're getting in experts in AMS radiocarbon dating who will give an exact date.
SOMEWHERE EAST OF LIFE
-
In converting radiocarbon results to calendar dates, the wiggles in the calibration curve are the real problem.
-
Pyrolysis-mass-spectrometry results from the sample area coupled with microscopic and microchemical observations prove that the radiocarbon sample was not part of the original cloth of the Shroud of Turin.
Uncommon Descent
-
The radiocarbon test result indicated that this cone-shape tool is Bai a Weilu pin bone, long approximately 12 centimeters, was probably has 10400 years.
-
The journal Radiocarbon publishes the most up-to-date curves which in principle permit the conversion of radiocarbon dates to calibrated dates.
-
The journal Radiocarbon publishes the most up-to-date curves which in principle permit the conversion of radiocarbon dates to calibrated dates.
-
But Grinsell was writing before the invention of radiocarbon dating - surely here was the chance to answer the riddle of the round skull?
-
In converting radiocarbon results to calendar dates, the wiggles in the calibration curve are the real problem.
-
Long ago, when I was an active spelunker, it had occurred to me that radiocarbon techniques ought to be applicable to the dating of secondary deposits in limestone caves.
-
An independent chronology for these reconstructions is essential and this is provided by radiocarbon-dating of organic material preserved in the sediments.
-
The geochronological framework of these deposits is based on ten radiocarbon dates.
Interactive Dig Sagalassos 2003 - Geomorphological Survey Report 2
-
Pyrolysis-mass-spectrometry results from the sample area coupled with microscopic and microchemical observations prove that the radiocarbon sample was not part of the original cloth of the Shroud of Turin.
Conservapedia - Recent changes [en]
-
But several factors affect the accuracy of radiocarbon dating.
-
Do the uniformitarian geologists have objections to the way the natural gas was sampled or do they have any explanation why radiocarbon is found in some/all coal and natural gas?
-
The results of their radiocarbon dating tests have come through.
ALASTAIR MCLEAN'S 'NIGHT WATCH'
-
Everyone assumes that dates that follow the word "radiocarbon" are accurate, precise and sure.
Signs of the Times
-
Three different laboratories produced radiocarbon dates for animal bones and charcoal at the four caves.
-
Radiocarbon determinations from this type of environment must be analysed with care because of the variable sources of carbon available to the plants which form the gyttja.
-
It is also possible that the seriation does not accurately reflect the temporal duration of zone decorations or that the radiocarbon dates from Bluegrass do not accurately reflect the span of occupation of the site.
-
The process has a huge advantage over standard methods such as radiocarbon dating, which is plagued by large error ranges, Kirch said.
PhysOrg.com - latest science and technology news stories
-
In chronological terms, Paviland is early in the European series of burials and is actually the earliest with a firm radiocarbon date measured directly on human bone.
-
To correct this error radiocarbon dates are calibrated by studying the difference between radiocarbon dates and tree-ring dates.
-
The Bayesian skyline plot suggests that the bison species went through a severe bottleneck around 10,000 radiocarbon years ago, coincident with the time when many North American megafaunal species went extinct.
-
These data were compared with the distribution of radiocarbon in free glucose and fructose isolated from the same sample.
-
Thus, whenever possible the radiocarbon age should be calibrated to actual calendar years.
-
Stratigraphic and radiocarbon information can be used to give direction to the order produced through seriation and to begin to construct an absolute chronology.
-
Two radiocarbon dates from this material yielded nearly identical ages of ~15,620 (+230;à⣃’”¬’¢350) and 15,490 (+200;à⣃’”¬’¢560) cal yr B.P., which are more than 1000 yr older than radiocarbon dates from the gyttja either above or below this interval.
Tephras in Ecuador « Climate Audit
-
The most frequently used method is radiocarbon dating.
-
After washing and drying, it was combusted to recover any carbon dioxide for the radiocarbon analysis.
-
Recently, he published the results of a comparison between radiocarbon dating and a second technique, known as optical dating, carried out by a geochronologist.
-
'Traditional methods of dating the pigments, such as radiocarbon, are destructive to the paintings, and the samples are prone to contamination.
Signs of the Times
-
Radiocarbon is the most widely used geochronological tool in the earth sciences for the late Quaternary the last 50,000 years.
Deep-sea Corals May Be Oldest Living Marine Organism | Impact Lab
-
Also contamination of an object with more recent radiocarbon, leading to an inaccurate date, is always a threat and difficult to detect.
-
Dark Age people might possibly have been burning very old wood, if they'd found it in a bog, and in that case radiocarbon would date the growth of the tree, not the time if its burning.
-
Some of these neutrons react with nitrogen atoms in air, converting them into a radioactive isotope of carbon: carbon - 14 or radiocarbon, with eight neutrons in each nucleus.
-
We found some pretty neat stuff: a few places with heaps of charcoal and good potential for radiocarbon dates; old tree roots (I think) sticking out of the loess, which could be evidence of the area previously being forested, as they were quite big and can be dated as well; a tall cliff of loess (no rocks!) with a paleosol in the middle.
NYT > Home Page
-
Just 11 km away at Turf Knowe near Ingram, a cairn covering stone cists has been radiocarbon dated to c 2,200 BC.
-
Living organisms acquire a characteristic minor fraction of radiocarbon by equilibrating with the carbon dioxide of ambient air or surrounding waters.
-
The radiocarbon assay of charcoal from one of these fire pits gave an age of 1580 +/- 40 B.P. Deryl noticed two other fire pit areas a few hundred feet farther back from the river on the north slope of the ridge.
Bird Cloud
-
Radiocarbon suggested construction between AD 900-1020, and dendrochronology dates the felling of three trees to AD 1080-1120.
-
The presence of alizarin dye and red lakes in the Raes and radiocarbon samples indicates that the color has been manipulated.
-
We're getting in experts in AMS radiocarbon dating who will give an exact date.
SOMEWHERE EAST OF LIFE
-
The most frequently used method is radiocarbon dating.
-
After the organism dies and becomes a fossil, carbon-14 continues to decay without being replaced. To measure the amount of radiocarbon left in a fossil.
-
The journal Radiocarbon publishes the most up-to-date curves which in principle permit the conversion of radiocarbon dates to calibrated dates.
