OxCal校正软件在考古年代学中的应用

OxCal校正软件是一款常用的处理碳十四数据的程序,拥有72个基本指令与若干模型.该软件的基本指令有两种,分别是赋值型指令和结构型指令.OxCal校正软件运用在具体考古遗址(如王城岗龙山文化城墙和城壕以及古埃及阿马尔纳遗址)研究中时,要注意序列或阶段的选择.     

Radiocarbon chronology and the correlation of hunter–gatherer sociocultural change with abrupt palaeoclimate change: the Middle Mesolithic in the Rhine–Meuse–Scheldt area of northwest Europe

Recent refinements in radiocarbon sampling procedures have enabled a more robust absolute chronology for the Mesolithic in the Rhine–Meuse–Scheldt area of northwest Europe. These refinements have allowed for a new chronological sub-division of the Early and Middle Mesolithic periods. Results of this research have indicated that the Middle Mesolithic period was bound by two Early Holocene cooling events, one at 9300 cal. BP and the other at 8200 cal. BP. These results enable a critical evaluation of the role of chronological precision in the investigation of contemporaneity between abrupt climate change and hunter–gatherer sociocultural change. In this paper we focus on the variable chronological resolution of the Early to Middle and Middle to Late Mesolithic transitions in the RMS area, and the role of this variable resolution in our ability to investigate the contemporaneity of these two transitions with different Early Holocene abrupt cooling events. This paper highlights two central challenges facing archaeological investigations of the relationships between climate and culture change: first, the requirement of tight chronological overlap between climate and culture change events and consideration of leads and lags in ecosystem and subsequent human responses to climate change; second, the equifinality problem and the separation of the impact of gradual from punctuated environmental change on human societies.     

The goodness of fit and statistical significance of seriation solutions

This paper presents a method for determining the statistical significance and goodness of fit of seriation solutions based on correspondence analysis. The basic assumption is that seriation solutions corresponding to relative chronological sequences should have unimodal distributions of types across assemblages in a sequence. In order to evaluate significance of chronological signal in data, the observed number of modes of a seriation solution based on correspondence analysis is compared to a distribution of number of modes generated by randomization of the original data table. A quantitative measure of the goodness of fit is presented. The method is tested on two data sets: 1) archaeological data with a known chronological ordering 2) non-archaeological data without a chronological patterning. The method successfully detected a significant chronological signal in the former, and failed to detect it in the latter.     

A Bayesian C chronology of Early and Middle Bronze Age in Sicily. Towards an independent absolute dating

This paper proposes a Bayesian model for the ¹⁴C chronology of Sicilian Early and Middle Bronze Age, with a specific focus on the northeastern sector of the island. Building on the available ¹⁴C determinations, the model allows addressing a number of chronological questions left open in literature, making a first step towards an independent absolute chronology. The analysis put the start of the earlier part of Early Bronze Age (Capo Graziano 1-Casa Lopez phase) between 2400 and 2175 cal BC, and the end at about 1960 cal BC. The advanced stage of the same period (Capo Graziano 1-Filo Braccio phase) is likely to have started and ended around 1960 and 1730 cal BC respectively. The model indicates that the time slot with the highest posterior probability for the start of the Middle Bronze Age–Milazzese (Portella phase) is between 1490 and 1460 cal BC. This turns up to be earlier than held to date. Notably, the model enables for the first time to bracket the development of the later stage of Early Bronze (Capo Graziano 2-M. di Capo Graziano phase) between 1730 (end of Filo Braccio phase) and 1490/60 cal BC (start of Middle Bronze Age–Portella phase). The latter date is earlier than usually held for the end of Capo Graziano 2. The existence of a narrow gap between the end of the latter and the start of Middle Bronze Age-Portella phase is tentatively proposed only on stratigraphic grounds. Further, the analysis enables for the first time to pinpoint and quantify the lag that is likely to have existed between the start of those Sicilian prehistoric phases and the appearance of Late Helladic imports. The comparison with the Aegean ¹⁴C Bayesian chronology indicates that a time lag (about 45 yr) is likely to have occurred between the start of Capo Graziano 2 and of the Late Helladic period. A time lag between 20 and 70 yr is likely to have existed between the start of the Sicilian Middle Bronze Age and of the Late Helladic III. Arguments tentatively supporting the narrower interval are also discussed.     

An Archaeomagnetic Study of a Roman Bath in Southern France

Absolute Thellier–Thellier archaeointensity determinations were conducted on 137 tiles and sedimentary blocks from five different structures from the ‘Site de la Molère’, southern France, to constrain the archaeological interpretation of a relative age difference between structures and add new data to the French secular variation database. We present 89 new archaeointensity and 20 new directional results, with averages of 57 (±8) μT in the second century ad and 68 (±7) μT in the third century ad . The overall data trend is consistent with the limited available data, indicating rapidly increasing field intensity from the second to the third century ad .     

Building a high-resolution chronology at the Maya archaeological site of El Palmar,Mexico

This paper discusses how detailed analyses of archaeological contexts and macrobotanical remains are critical for building a high-resolution chronology in archaeological research. While the application of Bayesian modelling has improved chronology-building significantly, archaeologists have sometimes neglected different dates recovered from the same depositional layer without further scrutiny. Based on 78 radiocarbon samples, this problem is challenged by building a high-resolution chronology of the Guzmán Group, a small plaza compound of the ancient Maya city of El Palmar, Mexico. The results permit a deeper understanding of relationships between dynastic interactions and the emergence of non-royal elites in Classic Maya society.     

Environnement et mondialisation: de la confusion à la convergence des discours

Ce texte vise à lever la confusion entourant la rhétorique sur l'environnement et la mondialisation. Il veut rétablir les faits dans une chronologie ou périodicité tels qu'ils se sont produits. Il montre les itinéraires communs des deux concepts d'environnement et de mondialisation, et les temps forts de leur usage. En effet, les discours de l'environnement et de la mondialisation loin d'être indépendants l'un de l'autre, le plus souvent se chevauchent et se côtoient. This text is about the environment and globalization. It is primarily concerned with rhetoric and discourse on the controversial subject of chronology related both to environment and globalization. Is globalization responsible for the new consciousness about the environment or is it a cause of the perception of the world as a whole? It is not primarly viewed as two opposites discourses, but as being mostly parallel and even seen as complementary rhetoric.     

来自夏商周断代工程的报告

夏商周断代工程的实施,是中国学术史上的一件盛事;工程的组织形式、科研方法值得总结和借鉴;工程所取得的成果,对21世纪的人文社会科学发展,将会产生深远的影响.     

早期夏文化研究中的几个问题

夏商周断代工程中的早期夏文化研究,在确定研究目标和研究方法后,对早期夏文化遗存进行了年代学研究,着重讨论其相对年代和绝对年代.工程指认早期夏文化即为河南龙山文化晚期(或称王湾三期文化)和二里头文化早期遗存,并将夏文化的始年推定在公元前21世纪.     

觉公簋年代管见

朱凤瀚先生新近撰文介绍并作了详细讨论的觉公簋,由于其铭文关涉到晋国的早期历史,从而又影响到西周王年,故引起了学者的重视。之后,夏商周断代工程办公室的《简报》又登载了李学勤先生的