Frontier Lapita interaction with resident Papuan populations set the stage for initial peopling of the Pacific

B Shaw, S Hawkins, L Becerra-Valdivia… - Nature Ecology & …, 2022‏ - nature.com
The initial peopling of the remote Pacific islands was one of the greatest migrations in
human history, beginning three millennia ago by Lapita cultural groups. The spread of …

[HTML][HTML] Mid-Holocene intensification of Southern Hemisphere westerly winds and implications for regional climate dynamics

J Tamhane, ZA Thomas, H Cadd, MRP Harris… - Quaternary Science …, 2023‏ - Elsevier
Abstract The Southern Hemisphere westerly winds (SWW), a belt of strong zonal winds in
the mid-latitudes, play a key role in Southern Hemisphere climate variability. Recent …

Demystifying the tropics: FTIR characterization of pantropical woods and their α-cellulose extracts for past atmospheric 14C reconstructions

JN Griffin, GM Santos, LD Nguyen… - Science of the Total …, 2024‏ - Elsevier
To ensure unbiased tree-ring radiocarbon (14 C) results, traditional pretreatments carefully
isolate wood cellulose from extractives using organic solvents, among other chemicals. The …

Investigating the effect of oxidants on the quantification and characterization of charcoal in two southeast Australian sedimentary records

M Constantine IV, X Zhu, H Cadd, S Mooney - Fire, 2023‏ - mdpi.com
This study examined the effects of commonly used oxidants in sedimentary macroscopic
charcoal analysis on two sediment cores from Thirlmere Lakes National Park, Southeast …

Boron isotopes and FTIR spectroscopy to identify past high severity fires

R Ryan, A Dosseto, D Lemarchand, P Dlapa, Z Thomas… - Catena, 2023‏ - Elsevier
Bushfires have played a crucial role in sha** the landscape and biodiversity for millennia.
As fire regimes continue to alter with climate change, greater understanding becomes critical …

Distal ash fall from the mid-Holocene eruption of Mount Hudson (H2) discovered in the Falkland Islands: New possibilities for Southern Hemisphere archive …

P Panaretos, PG Albert, ZA Thomas… - Quaternary Science …, 2021‏ - Elsevier
Cryptotephra deposits (microscopic volcanic ash) are important geochronological tools that
can be used to synchronize records of past environmental change. Here we report a distal …

Radiocarbon dating of highly degraded and problematic fossil wood: verification of the effectiveness of various preparation methods

M Jędrzejowski, DJ Michczyńska, M Kłusek… - …, 2024‏ - cambridge.org
This paper compares various wood pretreatment methods for highly degraded, and
problematic fossil wood extracted from the opencast Szczerców site of the Bełchatów Lignite …

The age and position of the southern boundary of prehistoric Polynesian dispersal

A Anderson, L Becerra‐Valdivia, H Cadd… - Archaeology in …, 2024‏ - Wiley Online Library
Prehistoric Polynesian voyaging into high latitudes with landfall in Antarctica remains a
widely credited proposition. We examine it through archaeological and environmental …

The application of pollen radiocarbon dating and bayesian age-depth modeling for develo** robust geochronological frameworks of wetland archives

H Cadd, B Sherborne-Higgins, L Becerra-Valdivia… - …, 2022‏ - cambridge.org
Wetland sediments are valuable archives of environmental change but can be challenging
to date. Terrestrial macrofossils are often sparse, resulting in radiocarbon (14C) dating of …

The accuracy and precision of small-sized modern wood samples analyzed at the Chronos 14CARBON-CYCLE Facility

HA Haines, WT Hiscock, JG Palmer, CSM Turney… - …, 2023‏ - cambridge.org
Tree-ring series offer considerable potential for the development of environment-sensitive
proxy records. However, with traditional increment cores, only small amounts of wood are …