Results 121 to 130 of about 6,637 (213)

Late Holocene moisture variability in Arctic Alaska from chitin δ18O

Boreas, EarlyView.
Amplified warming in the Arctic has resulted in reduced sea‐ice extent, which can impact regional climate dynamics. Elucidating past moisture variability in response to changing temperatures and sea‐ice conditions can offer insight into how anthropogenic climate change may impact Arctic areas such as the Alaskan North Slope in the future. We contribute
Briana A. Edgerton, Melissa L. Chipman
wiley   +1 more source

Droughts and human impact in the ancient Uaymil region of the Maya lowlands inferred from a 2800‐year sedimentary archive at Lake Kaná, Mexico

Boreas, EarlyView.
The relationship between the climate and societal transformation in Maya lowlands has long been debated, particularly the role of drought in shaping the civilization trajectory during the Classic Period. A high‐resolution, multi‐proxy, geochemical record from Lake Kaná, located in the underexplored Uaymil region of the Yucatán Peninsula in Mexico ...
Haydar B. Martinez‐Dyrzo, Priyadarsi D. Roy, Benjamin Gwinneth, Irma G. Vargas‐Martinez, Alejandro A. Aragon‐Moreno, Roger Medina‐Gonzales   +5 more
wiley   +1 more source

Radiocarbon calibration and age estimation

, 2019
Radiocarbon dating can be applied to archaeological materials which contain radiocarbon from the atmosphere or the oceans. In order to interpret radiocarbon measurements as dates, it is necessary to compare them against measurements on known‐age samples which have been dated by other methods. This allows calibration onto a timescale derived from either
openaire   +1 more source

Peatland inception and development across Kalimantan, Indonesia. [PDF]

Sci Rep
Anshari GZ, Ruwaimana M, Ritonga RP, Gangga A, Loisel J, Galego-Sala AV, van der Kaars S, Novita N.   +7 more
europepmc   +2 more sources

Vast, overlooked peat, and organic soils in Brazil's Cerrado: carbon storage, dynamics, and stability

New Phytologist, EarlyView.
Summary Tropical peatlands are critical for climate mitigation due to their dual role as major carbon sinks and methane sources. In rainforests, high and stable rainfall supports peat accumulation in tropical climates. However, groundwater‐fed peatlands in seasonally dry tropical ecosystems remain poorly understood, despite their potential importance ...
Larissa S. Verona, Amy E. Zanne, Susan Trumbore, Paulo N. Bernardino, Guilherme M. Alencar, Thalia Andreuccetti, David Herrera‐Ramírez, João C. F. Cardoso, Demetrius Lira‐Martins, Guilherme G. Mazzochini, Natashi Pilon, Rafael S. Oliveira   +11 more
wiley   +1 more source

Puzzling parrotfishes: Radiocarbon age validation and updated longevity estimates for western Atlantic species in support of sustainable fisheries management. [PDF]

PLoS One
Rivera Hernandez JM, Shervette VR.
europepmc   +1 more source

CULTURAL FUSION IN LATE BRONZE AGE GOLDWORK: DIADEMS AND MOUTH‐PIECES FROM HALA SULTAN TEKKE, CYPRUS

Oxford Journal of Archaeology, EarlyView.
Summary This study investigates recently discovered gold diadems and mouth‐pieces from seven chamber tombs and one shaft tomb at the Late Bronze Age cemetery of Hala Sultan Tekke, dating from the fifteenth to the thirteenth centuries BC. The chamber tombs, all containing multi‐generational burials, yielded a variety of ornaments, which are analysed in ...
Peter M. Fischer
wiley   +1 more source

NEW DATA ON THE SERTORIAN WAR AT THE VASCON SITE OF IRULEGI (ARANGUREN VALLEY, NAVARRE)

Oxford Journal of Archaeology, EarlyView.
Summary Literary sources provide limited information on specific developments during the civil wars of the late Roman Republic, including the Sertorian War. This study describes the attack on the Vascon settlement of Irulegi (Aranguren valley, Navarre), in northern Spain, within the context of this conflict, using the methodological and theoretical ...
Mattin Aiestaran, Josu Narbarte, Eneko Iriarte, Leire Malkorra, Oihane Mendizabal‐Sandonís, Jordi Principal, Eduard Ble, Elena Torregaray‐Pagola, Dani Ruiz‐González, Jose Antonio Mujika‐Alustiza, Olaia Granizo, Ainhize Cestau, Juantxo Agirre‐Mauleon   +12 more
wiley   +1 more source

Variations in downslope activity and bottom current dynamics in a land‐detached submarine channel system since the Last Glacial Maximum

Sedimentology, EarlyView.
ABSTRACT The Gollum Channel System is a land‐detached large‐scale canyon‐channel system situated offshore southwest Ireland on the Northeast Atlantic margin. The system has been considered inactive with downslope gravity flows since the last glacial period, but geophysical data in some of its branches do suggest Holocene activity.
Lotte Verweirder, Aggeliki Georgiopoulou, Kobus Langedock, Fred Fourie, Martin White, Sara Benetti, Fabio Sacchetti, Wieter Boone, David Van Rooij   +8 more
wiley   +1 more source

Minimally Destructive Radiocarbon Dating of Bone. [PDF]

Rapid Commun Mass Spectrom
Higham T, Luftensteiner K, van der Sluis L, Giannì M, Wiegele M, Papadogianni A, Steier P, Gruber D, Schmidt B, Schmidt K, Belinski A, Mensan R, Kozlikin M, Shunkov M, Neruda P, Nerudová Z, Horejs B, Schulze J, Douka K, Stafford TW.   +19 more
europepmc   +1 more source