globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2015.06.017
论文题名:
The age of large termite mounds-radiocarbon dating of Macrotermes falciger mounds of the Miombo woodland of Katanga, DR Congo
作者: Erens H.; Boudin M.; Mees F.; Mujinya B.B.; Baert G.; Van Strydonck M.; Boeckx P.; Van Ranst E.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2015
卷: 435
起始页码: 265
结束页码: 271
语种: 英语
英文关键词: 14C ; Low-temperature combustion ; Water-extractable carbon
英文摘要: The age of four large termite mounds has been determined by 14C-dating the acid-insoluble organic carbon fraction of samples taken along the central vertical axis of two active and two abandoned mounds. The age sequence in the active mounds is erratic, but the results for the abandoned mounds show a logical increase of 14C-age with depth. The ages measured at 50cm above ground level were 2335-2119calyr BP for the large abandoned mound (630cm high), and 796-684calyr BP for the small abandoned mound (320cm high). Cold-water-extractable organic carbon (CWEOC) measurements combined with spectroscopic analysis revealed that the lower parts of the active mounds may have been contaminated with recent carbon that leached from the active nest. Nonetheless, this method appears to provide reliable age estimates of large, abandoned termite mounds, which are older than previously estimated. Furthermore, historical mound growth rates seem to correspond to past temperature changes, suggesting a relation between past environmental conditions and mound occupancy. © 2015 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68861
Appears in Collections:过去全球变化的重建

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作者单位: Department of Geology and Soil Science (WE13), Faculty of Sciences, Ghent University, Krijgslaan 281/S8, Gent, Belgium; Royal Institute for Cultural Heritage, Jubelpark 1, Brussels, Belgium; Department of Geology and Mineralogy, Royal Museum for Central Africa, Leuvensesteenweg 13, Tervuren, Belgium; Department of General Agricultural Sciences, Faculty of Agronomy, University of Lubumbashi, PO Box 1825, Lubumbashi, Congo; Department of Applied Biosciences, Faculty of Bioscience Engineering, Ghent University, Valentin Vaerwyckweg 1, Gent, Belgium; Isotope Bioscience Laboratory - ISOFYS, Faculty of Bioscience Engineering, Ghent University, Coupure 653, Gent, Belgium

Recommended Citation:
Erens H.,Boudin M.,Mees F.,et al. The age of large termite mounds-radiocarbon dating of Macrotermes falciger mounds of the Miombo woodland of Katanga, DR Congo[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2015-01-01,435
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