DOI: 10.1016/j.palaeo.2016.08.022
论文题名: Carbonate deposits from the ancient aqueduct of Béziers, France — A high-resolution palaeoenvironmental archive for the Roman Empire
作者: Passchier C. ; Sürmelihindi G. ; Spötl C. ; Mertz-Kraus R. ; Scholz D.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 461 起始页码: 328
结束页码: 340
语种: 英语
英文关键词: Carbonate deposit
; Microstructure
; Roman aqueduct
; Stable isotopes
; Trace element
英文摘要: Carbonate deposits from a Roman aqueduct in Béziers, southern France, record environmental conditions during the late first century C.E. These deposits formed in a steep section of the aqueduct with a high flow velocity, which caused rapid deposition of up to 11 mm of calcite per year over a period of 22–24 years. The microstructure, trace element and stable isotope composition show that regular deposition was interrupted by high-discharge events, probably in response to heavy rainfall during autumn and winter, transporting colloidally- and particle-bound elements and depositing calcite with elevated δ18O values. Individual autumn high-discharge events coincide with abrupt decreases in δ13C from − 8 to − 12‰ giving rise to a saw-tooth profile. In some years, several high flow events persisted throughout the winter, suppressing this profile. Event horizons of micrite capping sparite growth surfaces, enriched in Mg, may represent anomalously low water levels or periods when the channel fell dry. In comparison to carbonate deposits from Roman aqueducts in the Eastern Mediterranean, visible layering is less regular and pronounced in Béziers, reflecting a more complex precipitation pattern. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68239
Appears in Collections: 过去全球变化的重建
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作者单位: Institute for Geosciences, Johannes Gutenberg University, Becherweg 21, Mainz, Germany; Institute of Geology, University of Innsbruck, Innrain 52, Innsbruck, Austria
Recommended Citation:
Passchier C.,Sürmelihindi G.,Spötl C.,et al. Carbonate deposits from the ancient aqueduct of Béziers, France — A high-resolution palaeoenvironmental archive for the Roman Empire[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,461