Results 81 to 90 of about 1,592,873 (364)
Polygonal tepee structures of Arabia
The Depositional Record, EarlyView.Tepee structures on Sheybarah Island form polygonal microbial cemented crusts in the intertidal. Radiocarbon dating suggests they formed in the Holocene and reflect minor sea‐level changes, highlighting their value as palaeoenvironmental indicators. Satellite surveys identified 126 polygonal features, including coral reefs that may have developed on ...
Pauline Falkenberg +6 more
wiley +1 more source
Applied SciencesThis study presents a comprehensive analysis and radiocarbon dating of historical mortar and plaster samples from the San Salvatore—Massino Visconti complex in Piedmont, Northern Italy.
Giulia Ricci +5 more
doaj +1 more source
Concepts of probability in radiocarbon analysis
Documenta Praehistorica, 2011 In this paper we explore the meaning of the word probability, not in general terms, but restricted to the field of radiocarbon dating, where it has the meaning of ‘dating probability assigned to calibrated 14C-ages’.
Bernhard Weninger +3 more
doaj +1 more source
Carbon Management, 2020 Though soils sequester large amounts of carbon (C), variations in physical and chemical characteristics of top and deep layers necessitate the study of factors governing topsoil and deep soil C sequestration to predict land-use changes to alleviate ...
Avijit Ghosh +10 more
doaj +1 more source
The Depositional Record, EarlyView.Cluster‐based chemostratigraphy using XRF‐CS enables high‐resolution correlation of event deposits across contrasting depositional settings in the Japan Trench. This approach reveals previously unrecognised events and compositional heterogeneity, offering new insights into sediment provenance and earthquake‐triggered deposition, with implications for ...
Jyh‐Jaan Steven Huang +4 more
wiley +1 more source
The Depositional Record, EarlyView.This study characterises carbonate mineral precipitation mechanisms and their paleoenvironmental implications in a semi‐arid, saline playa lake system. SEM image with EDS spectra shows microcrystalline, spherical shaped dolomite crystals from Laguna Fuente de Piedra composed of nanocrystals with bacterial voids and EPS.
Zeina Naim +5 more
wiley +1 more source
Accuracy vs. Precision: Understanding Potential Errors from Radiocarbon Dating on African Landscapes
, 2017 The application of radiocarbon dating to determine the geochronology of archaeological sites is ubiquitous across the African continent. Accelerator mass spectrometry has made radiocarbon dating the most precise method to determine the death of living ...
D. Wright
semanticscholar +1 more source
The Depositional Record, EarlyView.This study reveals that legacy paper mill sludge can generate tufa deposits through calcium leaching and atmospheric CO2 interaction, acting as a carbon sink. The findings highlight its potential for low‐cost carbon sequestration and sustainable waste management.
Md Jahangir Alam, John M. MacDonald
wiley +1 more source
Mussels with Meat: Bivalve Tissue-Shell Radiocarbon Age Differences and Archaeological Implications [PDF]
, 2012 Local reservoir ages are often estimated from the difference between the radiocarbon ages of aquatic material and associated terrestrial samples for which no reservoir effect is expected.
Coblenz +13 more
core +1 more source
The Depositional Record, EarlyView.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 +6 more
wiley +1 more source