Results 61 to 70 of about 112,190 (278)

Spring buds of European woody plants have old 14C age

open access: yesHeliyon
Trees and shrubs maintain carbon reserves to support their functions during periods when metabolic demand exceeds carbon supply, such as during the dormant season.
Tamás Varga   +5 more
doaj   +1 more source

El Abrigo de Guachos (Sepúlveda, Segovia): un nuevo yacimiento del Neolítico antiguo en el interior peninsular [PDF]

open access: yesMunibe Antropologia-Arkeologia
En este trabajo se presenta el descubrimiento de un nuevo yacimiento del Neolítico antiguo en el interior peninsular (cuenca del Duero), a partir de los resultados preliminares de la campaña de sondeo realizada en septiembre de 2023. El Abrigo de Guachos
David Álvarez-Alonso   +7 more
doaj   +1 more source

Formal Tests for Resistance-Resilience in Archaeological Time Series

open access: yesFrontiers in Ecology and Evolution, 2021
The study of resilience is a common pathway for scientific data to inform policy and practice towards impending climate change. Consequently, understanding the mechanisms and features that contribute towards building resilience is a key goal of much ...
Philip Riris, Jonas Gregorio de Souza
doaj   +1 more source

New Radiocarbon Dates from Four East Texas Caddo Sites [PDF]

open access: yes, 2016
The East Texas Radiocarbon Database is an important and relatively new database concerning one key aspect of the archaeological record of the Caddo peoples that lived in East Texas from as early as ca. A.D. 800/850.
Perttula, Timothy K.
core   +1 more source

Cortical bone distribution in the human mandibular symphysis: Ontogenic and morphometric approaches in archeological context

open access: yesThe Anatomical Record, EarlyView.
Abstract The human mandibular symphysis concentrates multiaxial loads during function and remodels throughout growth, but the precise mechanisms underlying cortical bone shape during growth remain relatively unexplored. Approaches based solely on thickness or external cortical contours provide only partial insights and do not capture the functional ...
Ana Ribeiro   +3 more
wiley   +1 more source

The North Atlantic marine reservoir effect in the early Holocene: implications for defining and understanding MRE values [PDF]

open access: yes, 2007
The marine reservoir effect (MRE) is a <sup>14</sup>C age offset between the oceanic and atmospheric carbon reservoirs. The MRE is neither spatially nor temporally constant and values may deviate significantly from the global model average ...
Ascough, P.L.   +3 more
core   +1 more source

Lyon Natural Radiocarbon Measurements IX [PDF]

open access: yesRadiocarbon, 1969
This list includes most of the measurements made in 1979 through 1981 and some values obtained during preceding years. The reporting of results, their calculation (half-life: 5570 ± 0, standard 13C correction only for bones), and the dilution ratios are as previously described in Lyon VIII (R, 1979, v 21, p 402–452).
J. Evin, G. Marien, Ch. Pachiaudi
openaire   +9 more sources

The Layout and Size of an Early Pre‐Pottery Neolithic B Small Settlement Revealed by Geophysical Prospection at Harbetsuvan Tepesi in Southeastern Anatolia

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT In Upper Mesopotamia, the transition from the Pre‐Pottery Neolithic A (PPNA) to Pre‐Pottery Neolithic B (PPNB) period, ca. 10 800–10 600 cal. BP, is marked by a series of changes in chipped stone industries, architectural forms, symbolic objects, regional distribution of settlements and long‐distance exchange networks among others.
Toshihiro Tada   +7 more
wiley   +1 more source

Radiocarbon investigation of a superlative grandidier baobab, the big reniala of Isosa [PDF]

open access: yes, 2019
The article discloses the accelerator mass spectrometry (AMS) radiocarbon dating results of the Big Reniala of Isosa, which is a massive Grandidier baobab (Adansonia grandidieri Baill.) of Madagascar.
Bodis, Jenö   +8 more
core   +3 more sources

Challenges and Opportunities in Multi‐Method Integrated Geophysical Prospection of Buried Building Remains at the Sanctuary of Olympia

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Ancient Olympia was one of the most important sanctuaries and the venue for the Olympic Games in Greek and Roman times. Its remains are located in the Olympia Terrace (Peloponnese, Greece) at the present‐day confluence of the rivers Alpheios and Kladeos at the base of Mount Kronos.
Sarah Bäumler   +10 more
wiley   +1 more source

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