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Total natural radioactivity, Tuscany, Italy
- Source :
- Journal of Maps. 9:438-443
- Publication Year :
- 2013
- Publisher :
- Informa UK Limited, 2013.
-
Abstract
- In this paper, we report an extensive survey of the natural radioactive content of rocks of the Tuscany Region (Italy): this permitted the first total natural radioactivity map of the region. The sampling was planned using the geological map of Tuscany at scale 1:250,000, which contains 45 distinct geological groups recognized by tectonic and stratigraphic features. Each geological group was characterized for the total activity by measuring the activity concentrations of 40K, 238U and 232Th in 865 samples using a high-purity germanium (HPGe) gamma-ray spectrometer. The average areal distribution of samples is approximately one sample per 25 km2. The radiometric map was constructed through the reclassification of each geological formation based on the median value of the total activity. Seven classes of total activity are identified by choosing percentiles almost evenly spread across the range of values. This map represents the starting point for future studies on natural background radiation, geochemical ...
- Subjects :
- Planning and Development
geography.geographical_feature_category
Geography
Geography, Planning and Development
HPGe gamma-ray spectrometer
Sampling (statistics)
Mineralogy
geological map reclassification
percentile
total natural radioactivity map
Tuscany region
Earth and Planetary Sciences (miscellaneous)
Geologic map
Natural (archaeology)
Tectonics
Geological formation
Group (stratigraphy)
Radiometric dating
Physical geography
Scale (map)
Subjects
Details
- ISSN :
- 17445647
- Volume :
- 9
- Database :
- OpenAIRE
- Journal :
- Journal of Maps
- Accession number :
- edsair.doi.dedup.....15f8711463d6358a288f10ebeb8fde44