Results 141 to 150 of about 5,424,467 (257)

AFRICAN BAOBABS WITH DOUBLE CLOSED RING-SHAPED STRUCTURES AND TWO SEPARATE FALSE CAVITIES: RADIOCARBON INVESTIGATION OF THE BAOBAB OF GOLCONDA FORT

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2016
The article discloses the results of radiocarbon investigation of the baobab of Golconda Fort, Hyderābād, India, which is the largest African baobab outside Africa.
Adrian PATRUT   +6 more
doaj  

Bridging Geomythology and Geospatial Analysis for Flood Risk Assessment in Tamil Nadu

open access: yesJournal of Flood Risk Management, Volume 19, Issue 4, December 2026.
ABSTRACT The need for more holistic and context‐aware approaches to flood‐risk assessment has become increasingly urgent with extreme climate change events faced globally. Modern models overlook the long‐term environmental knowledge incorporated in ancient literature, myths, and cultural memory as they rely primarily on hydrological and geospatial ...
Shrishti Kushwah   +3 more
wiley   +1 more source

Current Pretreatment Methods for AMS Radiocarbon Dating at the Oxford Radiocarbon Accelerator Unit (ORAU)

open access: yes, 2010
In this paper, we summarize the main chemical pretreatment protocols currently used for AMS radiocarbon dating at the Oxford Radiocarbon Accelerator Unit, updating the protocols last described by Hedges et al. (1989)
Higham, Thomas   +3 more
core  

Leveraging Multi‐Isotope Systems to Investigate Conflict, Food Insecurity, and Elevated Nitrogen Isotope Values in the Nazca Highlands of Peru During the Late Intermediate Period (1000–1450 CE)

open access: yesAmerican Journal of Biological Anthropology, Volume 191, Issue 3, November 2026.
ABSTRACT Objectives The physical effects of interpersonal violence are well documented in archaeology, but its broader impacts on population health, mobility, and resource access remain less understood. This article assesses how chronic warfare restricted movement and access to critical resources, altering dietary practices and contributing to ...
Sarah J. Noe   +3 more
wiley   +1 more source

Updated Estimates of Radiocarbon‐Based Deep Ocean Circulation Age

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 11, November 2026.
Abstract The deep ocean circulation age based on radiocarbon was last determined almost 20 years ago, when digital archiving was not standard practice. This work updates the circulation age while making two improvements by using new nutrient data and modifying the calculation. The newly calculated circulation age is spatially more coherent and older in
Katsumi Matsumoto
wiley   +1 more source

New Results From the Pre‐Pottery Neolithic Site of Al Uyaynah, Tabuk, in Northwestern Saudi Arabia

open access: yesArabian Archaeology and Epigraphy, Volume 37, Issue 1, Page 182-206, November 2026.
ABSTRACT Al Uyaynah is a low sandstone mound on an alluvial plain, long known for its extensive surface remains of stone‐built circular and rectangular structures. Following test excavations in 2012, more detailed excavation was undertaken in 2016 within one of the largest rectangular stone structures.
Khalid Alasmari   +6 more
wiley   +1 more source

SOUTHERN PALESTINIAN CHRONOLOGY: TWO RADIOCARBON DATES FOR THE EARLY BRONZE AGE AT TELL EL-HESI (ISRAEL)

open access: yes, 2006
Several articles reporting radiocarbon dates of Early Bronze Age (EB) material from excavations in the southern Levant have been published over the last 30 yr.
Anderson, Jr, Roger W
core  

The Late Agricultural Development of Central Arabian Oases—Archaeobotanical and Archaeozoological Studies of the al‐Kharj Oasis

open access: yesArabian Archaeology and Epigraphy, Volume 37, Issue 1, Page 317-355, November 2026.
ABSTRACT While oasis settlements emerged during the Bronze Age in Eastern and Northern Arabia, the settlement process in Central Arabia was different. Excavations at al‐Yamāma—main ancient settlement of the al‐Kharj oasis (Riyadh Province, KSA)—suggest that the latter did not emerge before the second half of the first millennium BCE.
Elora Chambraud   +4 more
wiley   +1 more source

Net Carbon Transfer From Ocean to Land During the Last Deglaciation Synchronous With Sea Level Rise and Lagging Atmospheric CO2 by Several Millennia

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract The sequence of events in the global carbon cycle during deglaciations is not entirely understood. Here, we analyze mean ocean δ13 ${\delta }^{13}$C and δ18 ${\delta }^{18}$O in an updated compilation of foraminiferal stable isotope data comprising 902 time series from 381 sediment cores, with individual records covering intervals within the ...
Peter Köhler, Stefan Mulitza
wiley   +1 more source

Temporal changes in radiocarbon reservoir age in the Dead Sea-Lake Lisan system.

open access: yes, 2004
The Holocene Dead Sea and the late Pleistocene Lake Lisan were characterized by varying radiocarbon reservoir ages ranging between 6 and 2 ka in the Dead Sea and between 2 ka and zero in Lake Lisan.
Migowski, Claudia   +3 more
core  

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