Results 181 to 190 of about 10,541 (259)

Microbial mediation and climatic control on dolomite precipitation in a hypersaline lake: Insights from Salinas Lake, southern Iberia

The Depositional Record, Volume 12, Issue 1, February 2026.
The cyclical nature of aridity and humidity led to the alternating deposition of dolomite‐rich and calcite‐rich sediments. During arid phases, the lake hydrology and growth of microbial mats under evaporative and hypersaline environment favors the precipitation of dolomite.
Guolai Li, Zeina Naim, Luis Gibert, Jan‐Berend Stuut, Annemiek C. Waajen, Gonzalo Jimenez‐Moreno, Mónica Sánchez‐Román   +6 more
wiley   +1 more source

Radiocarbon dating and cultural dynamics across Mongolia's early pastoral transition. [PDF]

PLoS One, 2019
Taylor W, Wilkin S, Wright J, Dee M, Erdene M, Clark J, Tuvshinjargal T, Bayarsaikhan J, Fitzhugh W, Boivin N.   +9 more
europepmc   +1 more source

Domed‐rim microbial polygons and their preservation potential

The Depositional Record, Volume 12, Issue 1, February 2026.
Microbially induced sedimentary structures (MISS) derive through interactions between minerals and microorganisms. We define a domed‐rim MISS, morphologically distinct from abiotic mud cracks and demonstrate its potential for long‐term preservation. These structures represent promising biosignatures in ancient environments on Earth and potentially Mars.
Franziska R. Blattmann, Timothy I. Eglinton, Negar Haghipour, Simon E. Rouwendaal, Stefano M. Bernasconi, John M. Rivers, Maria Dittrich, Zulfa Al Disi, Kenneth H. Williford, Fadhil Sadooni, Hamad A. Al‐Saad Al‐Kuwari, Tomaso R. R. Bontognali   +11 more
wiley   +1 more source

High-Precision Radiocarbon Dating of the Construction Phase of Oakbank Crannog, Loch Tay, Perthshire [PDF]

, 2010
Gordon Cook, T N Dixon, N Russell, Philip Naysmith, Sheng Xu, Barrie Andrian   +5 more
openalex   +1 more source

Investigating Query by Committee and Inverse‐Distance Based Exploration for Active Learning as Learning Strategies: An Application in Wood Dating

Quality and Reliability Engineering International, Volume 42, Issue 1, Page 66-79, February 2026.
ABSTRACT Fourier transform infrared (FTIR) spectroscopy, a non‐destructive method, is capable of measuring changes in the major wood components cellulose, hemicellulose and lignin during degradation. Previous research evaluated the application of supervised machine learning based on molecular decay over specific preservation conditions, achieving a ...
Karin Binder, Johannes Tintner‐Olifiers, Bernhard Spangl   +2 more
wiley   +1 more source

Micrography and XRF Techniques to Investigate Protohistoric Gold Artifacts: The Case of Roca Vecchia (Lecce, Italy)

Archaeometry, Volume 68, Issue 1, Page 51-63, February 2026.
ABSTRACT Protohistoric gold findings from the archaeological site of Roca Vecchia (Melendugno, Lecce, Italy) are analyzed involving micrography and stratified XRF analysis. This exploitation allows to get a deeper insight into ancient gold manufacturing and wear processes adopted in the Southern Italian FBA.
Daniele Dell'Aquila, Claudio Giardino, David Richard Loepp, Giovanna Maggiulli, Giovanni Paternoster, Tiziana Zappatore   +5 more
wiley   +1 more source

Identifying art forgeries by radiocarbon dating microgram quantities of artists' paints. [PDF]

Proc Natl Acad Sci U S A, 2019
Hodgins GWL.
europepmc   +1 more source

Radiocarbon Dating of Samples from the Village at ‘En Gedi

Israel Carmi, Dror Segal
openalex   +2 more sources

Review - First 20 years of radiocarbon dating: an annotated bibliography 1948–1968; by DILETTE POLACH. P 104, 4 tables, 1 fig, index. Canberra, 1979 (Australian Natl Univ, Radiocarbon Dating Research Laboratory). [PDF]

, 1980
J. Gordon Ogden
openalex   +1 more source

BURIED ORNAMENTS: EXPLORING FUNERARY BEHAVIOURS IN THE CHALCOLITHIC FROM THE LOWER DANUBE

Oxford Journal of Archaeology, Volume 45, Issue 1, Page 2-27, February 2026.
Summary This article focuses on personal adornments found in Chalcolithic funerary contexts from the Lower Danube. Generally, these artefacts are made from exotic raw materials originating from the Mediterranean sea, particularly Spondylus shells, along with Glycymeris or Antalis shells, and less frequently from local materials.
Monica Mărgărit
wiley   +1 more source