Results 31 to 40 of about 553,943 (174)

Radionuclide wiggle matching reveals a nonsynchronous early Holocene climate oscillation in Greenland and western Europe around a grand solar minimum [PDF]

open access: yesClimate of the Past, 2020
Several climate oscillations have been reported from the early Holocene superepoch, the best known of which is the Preboreal oscillation (PBO). It is still unclear how the PBO and the number of climate oscillations observed in Greenland ice cores and ...
F. Mekhaldi   +10 more
doaj   +1 more source

Verd – novoodkrito kolišče iz 5. tisočletja pr. Kr. na Ljubljanskem barju

open access: yesLes, 2023
Predstavljamo rezultate interdisciplinarnih raziskav na novoodkritem kolišču Verd na zahodnem robu Ljubljanskega barja. Za oceno starosti najdišča so bili ključni rezultati dendrokronoloških raziskav in radiokarbonskega datiranja lesa, podprtega z ...
Anton Velušček   +5 more
doaj   +1 more source

Dendrokronologija in absolutno datiranje kolišč na Ljubljanskem barju

open access: yesLes, 2022
Na 16 koliščih na Ljubljanskem barju v Sloveniji je bilo med leti 1995 in 2021 z arheološkimi izkopavanji zbranih več kot 8.800 vzorcev z vodo napojenega arheološkega lesa. Večina vzorcev je bilo odvzetih iz pilotov, zabitih v zemljo, na katerih so bila
Katarina Čufar   +3 more
doaj   +1 more source

Wood analyses helped to determine the location and approximate construction period of the Roman bridge over the Drava River in ancient Poetovio (Ptuj, Slovenia)

open access: yesLes, 2021
We present the results of a dendrochronological study and radiocarbon dating of the wooden piles of the bridge over the Drava River in Ptuj. The piles, together with stone elements (a fragment of an imperial building inscription and parts of the ...
Andrej Gaspari   +2 more
doaj   +1 more source

Wiggle-Match Dating of Tree-Ring Sequences [PDF]

open access: yesRadiocarbon, 2004
Given the non-monotonic form of the radiocarbon calibration curve, the precision of single 14C dates on the calendar timescale will always be limited. One way around this limitation is through comparison of time-series, which should exhibit the same irregular patterning as the calibration curve.
Mariagrazia Galimberti   +2 more
openaire   +1 more source

Carbon‐14 wiggle‐match dating of peat deposits: advantages and limitations [PDF]

open access: yesJournal of Quaternary Science, 2004
AbstractCarbon‐14 wiggle‐match dating (WMD) of peat deposits uses the non‐linear relationship between 14C age and calendar age to match the shape of a series of closely spaced peat 14C dates with the 14C calibration curve. The method of WMD is discussed, and its advantages and limitations are compared with calibration of individual dates.
Blaauw, Maarten   +3 more
openaire   +4 more sources

Dating old hollow trees by applying a multistep tree-ring and radiocarbon procedure to trunk and exposed roots

open access: yesMethodsX, 2018
In the process of dating the oldest trees, which are often hollow, we developed a new method that combines tree-ring cross dating and wiggle matching radiocarbon techniques on wood samples extracted from the stem and from exposed roots. The method can be
Gianluca Piovesan   +5 more
doaj   +1 more source

A wiggle-match date for Polynesian settlement of New Zealand [PDF]

open access: yesAntiquity, 2003
Dating initial colonisation and environmental impacts by Polynesians in New Zealand is controversial. A key horizon is provided by the Kaharoa Tephra, deposited from an eruption of Mt Tarawera, because just underneath this layer are the first signs of forest clearance which imply human settlement.
Hogg, A.G.   +5 more
openaire   +1 more source

Synchronizing the Greenland ice core and radiocarbon timescales over the Holocene – Bayesian wiggle-matching of cosmogenic radionuclide records [PDF]

open access: yesClimate of the Past, 2016
Investigations of past climate dynamics rely on accurate and precise chronologies of the employed climate reconstructions. The radiocarbon dating calibration curve (IntCal13) and the Greenland ice core chronology (GICC05) represent two of the most widely
F. Adolphi, R. Muscheler
doaj   +1 more source

Bragg crystal monochromators

open access: yesMajor Reference Works, Page 290-301., 2021
International Tables for Crystallography is the definitive resource and reference work for crystallography and structural science.

Each of the eight volumes in the series contains articles and tables of data relevant to crystallographic research and to applications of crystallographic methods in all sciences concerned with the ...
John P. Sutter C. Chantler   +2 more
wiley  

+1 more source

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