The RESET tephra database and associated analytical tools

The RESET tephra database and associated analytical tools
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RESET tephra 数据库和相关分析工具

DOI:
10.1016/j.quascirev.2014.11.008
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发表时间:
2015
影响因子:
4
通讯作者:
Bronk Ramsey C
Bronk Ramsey C
中科院分区:
地球科学1区
文献类型:
--
作者:
Bronk Ramsey C

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建立了一个开放式数据库,以支持研究“人类对突然环境转变的反应”的研究项目。该项目的主要方法是使用火山灰层将考古遗址和环境遗址的地层记录的年表联系在一起并同步。该数据库有关于欧洲各地发现的火山灰和隐火山灰矿床中玻璃碎片的发生和化学成分的信息。这些数据包括来自于该项目本身和已发表文献的信息。通过对玻璃碎片进行12,000多项主要元素分析和3,000多项微量元素分析,与80次晚第四纪火山爆发有关,该项目已经产生了重要的数据档案。除了已公布的信息外,这里所述的数据库还包含240多次喷发的玻璃样品中的22,000多个主要元素分析和近4,000个微量元素分析。除了数据库及其相关数据外,作为项目的一部分,还开发了用于评估相关性的新数据分析方法。特别是一种使用多维核密度估计来评估火山灰成分匹配的可能性的方法,在这里描述和测试的数据生成的一部分,ESPRIT项目。
An open-access database has been set up to support the research project studying the ‘Response of Humans to Abrupt Environmental Transitions’ (RESET). The main methodology underlying this project was to use tephra layers to tie together and synchronise the chronologies of stratigraphic records at archaeological and environmental sites. The database has information on occurrences, and chemical compositions, of glass shards from tephra and cryptotephra deposits found across Europe. The data includes both information from the RESET project itself and from the published literature. With over 12,000 major element analyses and over 3000 trace element analyses on glass shards, relevant to 80 late Quaternary eruptions, the RESET project has generated an important archive of data. When added to the published information, the database described here has a total of more than 22,000 major element analyses and nearly 4000 trace element analyses on glass from over 240 eruptions.In addition to the database and its associated data, new methods of data analysis for assessing correlations have been developed as part of the project. In particular an approach using multi-dimensional kernel density estimates to evaluate the likelihood of tephra compositions matching is described here and tested on data generated as part of the RESET project.
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