Results 71 to 80 of about 583 (230)

Soil wetting and drying processes influence stone artefact distribution in clay‐rich soils: A case study from Middle Gidley Island in Murujuga, northwest Western Australia

Archaeometry, EarlyView.
Abstract Soils that contain swelling clay minerals (e.g., montmorillonite) expand and contract during wetting and drying, causing movement within the soil profile. This process, known as argilliturbation, can alter artefact distributions, destroy stratigraphy and complicate the interpretation of archaeological deposits.
Caroline Mather, Matthias Leopold, Kaitlin Sullivan, Kane Ditchfield, Tom Horrocks, Luke Gliganic, Emma Beckett, Diana Patalwala, Emielda Yusiharni, Michael Smirk, William Hiscock, Jo McDonald   +11 more
wiley   +1 more source

Ice sheet attenuation from radar sounding in the frequency domain

Journal of Glaciology
Attenuation rates inferred from radar sounding offer one of the few ways to observationally constrain the large-scale temperature structure of ice sheets.
Eliza J Dawson, Wing (Winnie) Chu, Michael Christoffersen, Donglai Yang, Stuart Farris, Joseph A MacGregor   +5 more
doaj   +1 more source

Assessing the Vulnerability of an Inuit Archaeological Site in a Changing Periglacial Environment: A Novel Multimethod Geophysical Approach in Arctic Geoarchaeology

Archaeometry, EarlyView.
ABSTRACT With northern regions warming at twice the global rate, assessing the state of archaeological sites in these areas is critically important. In this study, we used a multimethod geophysical approach (ERT, GPR, and EMI) to characterize the current geocryological conditions of an Inuit archaeological site on South Aulatsivik Island (Labrador ...
Rachel Labrie, Dominique Todisco, Najat Bhiry, Cécile Finco, Héloïg Barbel Le Page, Armelle Couillet   +5 more
wiley   +1 more source

Gravity modelling of ice thickness and valley geometry on Taku Glacier (T'aak̲ú K̲wáan Sít'i), Alaska

Journal of Glaciology
Taku Glacier recently began retreating for the first time since the late 19th century but limited observations of its bed leaves uncertainties on how this retreat will proceed. In this study, we use ground-based gravity measurements to improve the extent
Louise Borthwick, Atsuhiro Muto, Kirsty Tinto   +2 more
doaj   +1 more source

Ice thickness measurements of Guliya ice cap, western Kunlun Mountains (Tibetan Plateau), China

Journal of Glaciology, 2018
Despite their high value and importance for various glaciological applications, detailed ice thickness measurements of alpine glaciers are still very limited. Knowledge of bedrock topography is essential for paleoglaciological studies. The Guliya ice cap
STANISLAV KUTUZOV, LONNIE G. THOMPSON, IVAN LAVRENTIEV, LIDE TIAN   +3 more
doaj   +1 more source

Biometric Analysis of Giant and Large Murid Remains From Matja Kuru 2, Timor‐Leste

Archaeometry, EarlyView.
ABSTRACT Published research on Matja Kuru 2 (MK2) demonstrates its significance for understanding human lifestyle during the terminal Pleistocene and Holocene. Murids represent the most commonly identified taxa in the site, with specimens preliminarily classified as small, large and giant based on size comparisons.
Sarah Hannan, Sofia C. Samper Carro, Sue O'Connor   +2 more
wiley   +1 more source

Glacier bed surveying with helicopter-borne dual-polarization ground-penetrating radar

Journal of Glaciology, 2019
Traditionally, helicopter-borne ground-penetrating radar (GPR) systems are operated with a single pair of bistatic dipole antennas to measure the thickness of glaciers.
LISBETH LANGHAMMER, LASSE RABENSTEIN, LINO SCHMID, ANDREAS BAUDER, MELCHIOR GRAB, PHILIPP SCHAER, HANSRUEDI MAURER   +6 more
doaj   +1 more source

What Do Lithics Tell Us About Cultural Evolution? Insights From the Central African Record

Archaeometry, EarlyView.
ABSTRACT While Western historical narratives often incorporate a biased vision of human evolution—driven by a progressive view tied to a progressively evolving state of culture—this paper proposes combining archaeological lithic data with epistemological reflections to critique the modern regime of historicity, where progress is assumed as rational ...
Isis Isabella Mesfin
wiley   +1 more source

Ice mass discharge through the Antarctic subglacial hydrographic network as a trigger for cryoseismicity

Journal of Glaciology
We analyse seismic time series collected during experimental campaigns in the area of the David Glacier, Victoria Land, Antarctica, between 2003 and 2016.
Stefania Danesi, Simone Salimbeni, Alessandra Borghi, Stefano Urbini, Achille Zirizzotti, Massimo Frezzotti   +5 more
doaj   +1 more source

Response of Remote Tropical West Pacific Islands to Climate Variability: A Multiproxy Record From T‐Lake, Palau, Spanning the Early Holocene to Present

Archaeometry, EarlyView.
ABSTRACT Lake sediments are natural archives of past environmental dynamics and how these systems have responded to past climate variability. Sediment geochemistry, governed by local geology and climate processes, is unique to each lake‐catchment and geochemical proxies must be validated for each study site.
Jalene Nalbant, Larissa Schneider, Jessica L. Blois, Matthew Wolhowe, Julian P. Sachs, Simon G. Haberle, Geoffrey Clark   +6 more
wiley   +1 more source