Spatial variations of radiocarbon in the coastal aquifer of Israel - Indicators of open and closed systems

Debbie Bruce; Gerald M. Friedman; Aaron Kaufman; Yoseph Yechieli

doi:10.1017/s003382220004145x

Spatial variations of radiocarbon in the coastal aquifer of Israel - Indicators of open and closed systems

Debbie Bruce, Gerald M. Friedman, Aaron Kaufman, Yoseph Yechieli

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The spatial variation in radiocarbon concentration was studied in the Coastal Aquifer of Israel. Lower concentrations were found in the western section of the aquifer (55-70 pMC) as compared to the eastern section (80-100 pMC). Since no correlation was found between the tritium and radiocarbon values, these variations could not simply be explained by a difference in ages, or by a difference in the degree of old calcite dissolution as similar δ¹³C values were found throughout the aquifer. The results are best explained when viewing the differences in ¹⁴C values within the same coastal aquifer, where the eastern section of the aquifer is a more open system and the western section is a more closed system. In general, the age of the groundwater in the coastal aquifer was found to be less than 50 years old (₁₄C > 55 and measurable tritium).

Original language	English
Pages (from-to)	783-791
Number of pages	9
Journal	Radiocarbon
Volume	43
Issue number	2 PART II
DOIs	https://doi.org/10.1017/s003382220004145x
State	Published - 1 Jan 2001
Externally published	Yes

ASJC Scopus subject areas

Archaeology
General Earth and Planetary Sciences

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title = "Spatial variations of radiocarbon in the coastal aquifer of Israel - Indicators of open and closed systems",

abstract = "The spatial variation in radiocarbon concentration was studied in the Coastal Aquifer of Israel. Lower concentrations were found in the western section of the aquifer (55-70 pMC) as compared to the eastern section (80-100 pMC). Since no correlation was found between the tritium and radiocarbon values, these variations could not simply be explained by a difference in ages, or by a difference in the degree of old calcite dissolution as similar δ13C values were found throughout the aquifer. The results are best explained when viewing the differences in 14C values within the same coastal aquifer, where the eastern section of the aquifer is a more open system and the western section is a more closed system. In general, the age of the groundwater in the coastal aquifer was found to be less than 50 years old (14C > 55 and measurable tritium).",

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AB - The spatial variation in radiocarbon concentration was studied in the Coastal Aquifer of Israel. Lower concentrations were found in the western section of the aquifer (55-70 pMC) as compared to the eastern section (80-100 pMC). Since no correlation was found between the tritium and radiocarbon values, these variations could not simply be explained by a difference in ages, or by a difference in the degree of old calcite dissolution as similar δ13C values were found throughout the aquifer. The results are best explained when viewing the differences in 14C values within the same coastal aquifer, where the eastern section of the aquifer is a more open system and the western section is a more closed system. In general, the age of the groundwater in the coastal aquifer was found to be less than 50 years old (14C > 55 and measurable tritium).

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Spatial variations of radiocarbon in the coastal aquifer of Israel - Indicators of open and closed systems

Abstract

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