奥地利阿尔卑斯山亚化石木材的稳定碳同位素分析。

IF 0.8 4区 地球科学 Q4 GEOSCIENCES, MULTIDISCIPLINARY
Marzena Kłusek, Sławomira Pawełczyk
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引用次数: 10

摘要

本文的研究是为了检验亚化石木材对稳定同位素分析的有用性。研究的目的还在于确定亚化石样品制备的最佳方法。在本研究中使用的亚化石样本是多世纪树木年代学尺度的一部分。这种年代学起源于奥地利的一个小山湖——施瓦泽湖。稳定碳同位素测定结果证实,采用酸性亚氯酸钠和氢氧化钠溶液提取α-纤维素的方法可以去除木材中的树脂和其他可移动化合物。因此,在分析样品的情况下,发现去除萃取物的额外化学过程是不必要的。所研究的木材样品含有足够比例的α-纤维素,与当代树木的特征值相似。这证明了木材的充分保存,这对进行同位素研究是必不可少的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

STABLE CARBON ISOTOPE ANALYSIS OF SUBFOSSIL WOOD FROM AUSTRIAN ALPS.

STABLE CARBON ISOTOPE ANALYSIS OF SUBFOSSIL WOOD FROM AUSTRIAN ALPS.

STABLE CARBON ISOTOPE ANALYSIS OF SUBFOSSIL WOOD FROM AUSTRIAN ALPS.

STABLE CARBON ISOTOPE ANALYSIS OF SUBFOSSIL WOOD FROM AUSTRIAN ALPS.

The presented studies were carried out in order to check the usefulness of subfossil wood for stable isotope analysis. The aim of research was also to define the optimal method of subfossil samples preparation. Subfossil samples used during the presented studies are a part of the multi-century dendrochronological scale. This chronology originates in an area situated around a small mountain lake - Schwarzersee, in Austria. The obtained results of stable carbon isotope measurements confirmed that the method of α-cellulose extraction by the application of acidic sodium chlorite and sodium hydroxide solutions removes resins and other mobile compounds from wood. Therefore, in the case of the analysed samples, the additional chemical process of extractives removing was found to be unnecessary. Studied wood samples contained an adequate proportion of α-cellulose similar to the values characteristic for the contemporary trees. This proved an adequate wood preservation which is essential for the conduction of isotopic research.

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来源期刊
Geochronometria
Geochronometria GEOSCIENCES, MULTIDISCIPLINARYPALEONTOLOGY-PALEONTOLOGY
自引率
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发文量
1
期刊介绍: Geochronometria is aimed at integrating scientists developing different methods of absolute chronology and using them in different fields of earth and other natural sciences and archaeology. The methods in use are e.g. radiocarbon, stable isotopes, isotopes of natural decay series, optically stimulated luminescence, thermoluminescence, EPR/ESR, dendrochronology, varve chronology. The journal publishes papers that are devoted to developing the dating methods as well as studies concentrating on their applications in geology, palaeoclimatology, palaeobiology, palaeohydrology, geocgraphy and archaeology etc.
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