DOI: 10.1016/j.quascirev.2012.10.046
Scopus记录号: 2-s2.0-84871944836
论文题名: An aminostratigraphy for the British Quaternary based on Bithynia opercula
作者: Penkman K.E.H. ; Preece R.C. ; Bridgland D.R. ; Keen D.H. ; Meijer T. ; Parfitt S.A. ; White T.S. ; Collins M.J.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2013
卷: 61 起始页码: 111
结束页码: 134
语种: 英语
英文关键词: Amino acid geochronology
; Interglacial
; Intra-crystalline protein decomposition
; Palaeolithic
; Pleistocene
Scopus关键词: Britain
; Closed systems
; Dating techniques
; Interglacial
; Late Pliocene
; Marine oxygen isotopes
; Natural variability
; Organics
; Palaeolithic
; Pleistocene
; Protein residues
; Quaternary deposits
; Temporal resolution
; Calcite
; Crystalline materials
; Decomposition
; Deposits
; Geochronology
; Isotopes
; Proteins
; Stratigraphy
; Water
; Amino acids
; amino acid
; correlation
; data processing
; deposition
; freshwater ecosystem
; gastropod
; geochronology
; persistence
; Quaternary
; racemization
; stratigraphy
; temporal record
; United Kingdom
; Bithynia
; Bithyniidae
; Gastropoda
; Mollusca
英文摘要: Aminostratigraphies of Quaternary non-marine deposits in Europe have been previously based on the racemization of a single amino acid in aragonitic shells from land and freshwater molluscs. The value of analysing multiple amino acids from the opercula of the freshwater gastropod Bithynia, which are composed of calcite, has been demonstrated. The protocol used for the isolation of intra-crystalline proteins from shells has been applied to these calcitic opercula, which have been shown to more closely approximate a closed system for indigenous protein residues. Original amino acids are even preserved in bithyniid opercula from the Eocene, showing persistence of indigenous organics for over 30 million years. Geochronological data from opercula are superior to those from shells in two respects: first, in showing less natural variability, and second, in the far better preservation of the intra-crystalline proteins, possibly resulting from the greater stability of calcite. These features allow greater temporal resolution and an extension of the dating range beyond the early Middle Pleistocene. Here we provide full details of the analyses for 480 samples from 100 horizons (75 sites), ranging from Late Pliocene to modern. These show that the dating technique is applicable to the entire Quaternary. Data are provided from all the stratotypes from British stages to have yielded opercula, which are shown to be clearly separable using this revised method. Further checks on the data are provided by reference to other type-sites for different stages (including some not formally defined). Additional tests are provided by sites with independent geochronology, or which can be associated with a terrace stratigraphy or biostratigraphy. This new aminostratigraphy for the non-marine Quaternary deposits of southern Britain provides a framework for understanding the regional geological and archaeological record. Comparison with reference to sites yielding independent geochronology, in combination with other lines of evidence, allows tentative correlation with the marine oxygen isotope record. © 2012 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60727
Appears in Collections: 过去全球变化的重建
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作者单位: BioArCh, Departments of Archaeology and Chemistry, University of York, York YO10 5DD, United Kingdom; Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, United Kingdom; Department of Geography, University of Durham, South Road, Durham DH1 3LE, United Kingdom; Institute of Archaeology and Antiquity, University of Birmingham, Birmingham B15 2TT, United Kingdom; Cainozoic Mollusca, Netherlands Centre for Biodiversity, Naturalis, P.O. Box 9517, 2300 RA Leiden, Netherlands; Institute of Archaeology, University College London, 31-34 Gordon Square, London WC1H 0PY, United Kingdom; Department of Palaeontology, The Natural History Museum, Cromwell Road, London SW7 5BD, United Kingdom
Recommended Citation:
Penkman K.E.H.,Preece R.C.,Bridgland D.R.,et al. An aminostratigraphy for the British Quaternary based on Bithynia opercula[J]. Quaternary Science Reviews,2013-01-01,61