首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 9 毫秒
1.
This paper considers the 1864 wreck of Grafton in the Auckland Islands, and its implications for wreck analysis and pre‐Cook exploration claims. The captain of Grafton, Thomas Musgrave, stated that the schooner was built from the wreck of a Spanish man‐o‐war, and archaeological analysis of the wreck found that the timbers are a tropical South American species, and had possibly been reused. The implications of this are clear; it is possible that timbers that originated in pre‐Cook (1769) ships lie in New Zealand, but without a full understanding of the historical and archaeological context of any such timbers, including their reuse in later ships, it is not possible to claim proof of pre‐Cook European exploration of New Zealand.  相似文献   

2.
韩国的高句丽史研究的总体状况怎样 ?以什么样的史观分析高句丽的归属问题 ?对中国学界关于高句丽问题的新观点如何评价 ?搞清这些问题 ,对我国进行高句丽问题的对策性研究及加强与韩国的学术交流非常重要。  相似文献   

3.
    
Radiocarbon determinations obtained from heat retainer hearths in four sampling locations in western New South Wales, Australia are reported, with age estimates ranging from the mid Holocene until the last few centuries BP. Hearths are first considered in their geomorphic setting to determine the likely age of the surfaces into which they were dug and the reasons why they are still extant today. Second, the radiocarbon determinations are analysed not to date single events in the past, but to construct a regional chronology of Indigenous Australian occupation. In this chronology, periods when hearths were not constructed are as important as periods when radiocarbon determinations indicate sustained hearth formation. Third, comparisons are made among the four sampling locations to determine regional patterns. Results suggest both regional and local patterns of occupation and abandonment, or at least very much reduced hearth construction, over the last two millennia. The increasing frequency of radiocarbon determination results from hearths as one approaches the present is likely to be a result of the relative abundance of well preserved recent surfaces in the locations we have studied and the consequent lack of relatively ancient surfaces.  相似文献   

4.
宋殷 《东南文化》2022,(1):31-36
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.  相似文献   

5.
Radiocarbon Chronology of the Siberian Paleolithic   总被引:2,自引:0,他引:2  
We have compiled 462 C-14 determinations for 120 Paleolithic and Mesolithic sites from Siberia and the Russian Far East. The Mousterian sites are dated to ca. 46,000–28,500 BP. The Middle–Upper Paleolithic transition dates to ca. 43,300–28,500 BP. Although there are a few earlier sites, most of the Upper Paleolithic sites are dated to the time interval between ca. 34,000 BP and 10,000 BP. The earlier Upper Paleolithic stage is characterized by macroblade technology and is radiocarbon-dated to ca. 34,000–20,000 BP. The earliest microblade technology occurs in the late stage of the Upper Paleolithic, dated to ca. 23,000–20,000 BP, but the majority of microblade sites is dated to ca. 20,000–11,000 BP. The Final Paleolithic (Mesolithic) sites date to ca. 12,000–6000 BP. At ca. 13,000–11,000 BP, the earliest Neolithic appeared in both the Russian Far East (Amur River basin) and the Transbaikal. The Paleolithic–Neolithic transition occurred ca. 13,000–6000 BP.  相似文献   

6.
    
This is the thirty‐sixth list of AMS radiocarbon determinations measured at the Oxford Radiocarbon Accelerator Unit (ORAU). Amongst some of the sites included here are the latest series of determinations from the key sites of El Mirón (Spain) and Sutton Courtney (UK), as well as others dating to the Palaeolithic, Mesolithic and later periods. Submitters of the material provide comments on the significance of the results.  相似文献   

7.
The application of radiocarbon dating to archaeological samples generally requires calibration of 14C dates to calendar ages and interpretation of dating errors. In this paper, four recent methods of age calibration are assessed, particularly with regard to their quality of error treatment. Recent experimental research has suggested that commonly quoted errors on “raw” 14C dates may require enlargement to more realistic levels, which, when incorporated in the calibration schemes, produce a considerable increase in the size of the typical calibrated interval. A general decrease in the sensitivity of 14C dating using single, “normal precision” dates is implied. Thus typical calibrated age intervals range from 300 to 1300 years (approximate 95% confidence level), with little improvement resulting if “high precision” calibration systems are used to correct “normal precision” dates. Of the four methods considered here, that proposed by Neftel is found to provide the most objective, flexible, comprehensive and “easy to use” scheme. This method is particularly recommended for its treatment of errors both on the dates to be calibrated and on the calibration curve itself.  相似文献   

8.
    
This paper presents the results of analyses of metal artefacts discovered at a multiphase site in Nowe Brzesko, Małopolskie Voivodeship, Poland. Fieldwalking prospection led to the discovery of steely iron objects, ploughed out on the site among other numerous archeological finds. A prospecting sondage yielded more corroded metal artefacts, identified mainly as agricultural tools (e.g. sickles, scythes). These chronologically nondistinctive artefacts could be assigned to the third to fourth century AD using radiocarbon dating, complemented by metallurgical analysis. The results open up new research perspectives on the economy and society of the Przeworsk culture in the Late Roman period.  相似文献   

9.
    
A high-resolution chronostratigraphy has been established for an eroding Atlantic round house at Sloc Sàbhaidh (North Uist, Scotland), combining detailed OSL profiling and dating of sediments encompassing the main bracketing events associated with the monument, radiocarbon AMS dates on bone recovered from excavated features and fills within it, and TL dates on pottery and burnt clay. Concordant OSL and radiocarbon evidence place construction of the wheelhouse in the first to second centuries AD, contemporary with dates from the primary occupation. Beneath the wheelhouse, clay deposits containing burnt material, attest to cultural activity in vicinity to the monument in the preceding second to first centuries BC. At a later date, the southern wall collapsed, was rebuilt, and the interior spaces to the monument re-structured. The chronology for the later horizons identified from the sediment luminescence dates extends to the second half of the first millennium AD, which goes beyond the range of the radiocarbon dates obtained. The data from ceramics encompass both periods. The juxtaposition of the dating evidence is discussed relative to short and longer chronologies for this Iron Age monument. Corollaries of this research are the implications that based on the long chronology, some of the ecofacts (bone) appear to be residual, and that the temporal duration of Hebridean Coarse Ware may extend into the second half of the first millennium AD.  相似文献   

10.
    
Attempts have been made to date mortar by radiocarbon analysis. Potential problems are discussed, and the possible use of stable carbon isotopes to detect contamination by geological carbonates is investigated.  相似文献   

11.
This introductory chapter presents a brief overview of the evolution of Argentine historical archaeology as a scientific discipline, starting from the first pioneering work until its consolidation and future prospects. It also includes a summary of each of the paper presented.  相似文献   

12.
  吴小红  冉宏林  雷雨 《四川文物》2021,(2):117-120
2020年,广汉三星堆遗址新发现祭祀坑的田野考古发掘工作正式启动,为解决祭祀坑的年代问题,四川省文物考古研究院委托国家文物局考古研究中心与北京大学考古文博学院考古年代学联合实验室对四号祭祀坑开展了碳十四年代研究,得到6个碳十四年代数据,经过贝叶斯统计树轮校正计算得到其埋藏年代有95.4%的概率落在距今3148—2966年的时间范围之内,属商代晚期。  相似文献   

13.
Historical archaeology is today widely practiced in Latin America. Scholars not living or working in the region often are unaware of the research conducted in the countries south of the United States. This brief report outlines some of the historical archaeology conducted in Latin America and provides a brief bibliography.  相似文献   

14.
    
We discuss recent findings from Vainu'u (AS‐32‐016), a multi‐component highland site on Tutuila Island, American Samoa. Vainu'u is of interest for at least three reasons. First, as the earliest recorded highland site in the Samoan archipelago, this site changes our understanding of the Samoan cultural chronology. Second, as a ceramic‐bearing site, material culture recovered from Vainu'u complements assemblages recovered from lowland and coastal sites. Third, the post‐ceramic occupation observed at Vainu'u provides interesting insights into residential occupation during the Monument Building Period.  相似文献   

15.
    
Bayesian statistics has now demonstrated its strong utility in archaeology, specifically through software that conditions radiocarbon data. Only recently has this technology been applied within Maya archaeology, however, in part because the Maya calendar provides a much greater resolution in dating archaeological events than is possible with radiocarbon data. The Long Count in particular allows for the assignment of some events relative to each other, accurate to the day. In this paper, a new approach is presented to incorporate robust records of both in the same Bayesian analysis through the OxCal software. The results do call for a reconsideration of the earliest radiocarbon studies in the Maya area from the 1960s, as well as the latest attempts to corroborate the currently popular calendar correlation known as the GMT. This new study demonstrates the value of the approach and corroborates the 1σ accuracy of the GMT, while at the same time opening up the possibility of revision by 20 or more years.  相似文献   

16.
江西仙人洞遗址两万年前陶器的年代研究   总被引:1,自引:0,他引:1  
陶器的出现使得人类生存和社会行为发生了重要转变。我们对江西万年仙人洞遗址出土陶器进行了年代研究、对陶片和碳十四测年样品层位关系开展地层显微结构分析,结果显示遗址出土最早的陶片年代为距今19,000~20,000年,比东亚和其他地区的陶器早了2000~3000年。洞穴内遗存证明这些陶器是在末次冰盛期由采集狩猎者所制造,可能被用做炊煮器。说明陶器在农业出现以前一万年甚至更早就被制造和使用了。  相似文献   

17.
The Ecuadorian Formative was initially interpreted as a result of long-distance diffusion, and migration, more recent research has changed our perception of the Valdivia, Machalilla, and Chorrera culture complexes. In this analysis, these archaeological investigations are reassessed in order to reevaluate our understanding regarding the nature of these prehistoric cultures. Formative chronologies, distributions, interrelationships are reviewed in the light of Pre-Hispanic occupations in El Oro Province. Previous investigations on the Ecuadorian littoral are examined. Results indicate (1) Valdivia and Machalilla are part of the same ceramic tradition and (2) the interrelationships of these complexes to Late Formative Period ceramic sequences are more complex than previously assumed. (3) A major adaptive shift related to an increased dependence upon agriculture occurred during Valdivia VI–VIII, and continued into the Late Formative with the widespread distribution of Chorrera related material culture. (4) Long-distance interaction with the Ecuadorian highlands resulted in the spread of what may be termed a Chorrera horizon and formed the basis of subsequent Andean cosmology where it was symbolically represented according to local and regional artistic canons and over a vast area of Andean South America.  相似文献   

18.
    
Two composite anchors of a kind not hitherto identified, each composed of a re-used ashlar block, a wooden shank, two arms and a rope, were discovered recently on the Dead Sea shoreline. Two additional anchor weights of identical type were found in the same region. The two well-preserved anchors were dated to the Fatimid-Crusader period. The shank and the arms were made from local tree species: Christ thorn and tamarisk, and both ropes of date-palm.
© 2008 The Authors  相似文献   

19.
    
Chronometric studies of charcoal production remains are largely based on 14C-dating of associated charcoal. Owing to intrinsic limitations, however, this method provides no meaningful time resolution for post-1650 CE features. We investigate the potential of optically stimulated luminescence (OSL) dating of heated sandy sediments as an alternative and complementary tool for dating charcoal kiln remains. Seven samples from five relic charcoal kilns and 11 complementary samples from the underlying sandy substrate are used. Through a range of procedural tests, we demonstrate that the single-aliquot, regenerative-dose procedure in combination with OSL signals from quartz allows determining equivalent doses both accurately and precisely. For four of the five investigated kilns, OSL ages are consistent with independent age information from 14C-dating and written sources. Especially for post-1650 CE features, the precision can be significantly better than that of 14C-dating, and we highlight the potential of OSL dating for distinguishing, relatively, between charcoal production phases with an unprecedented time resolution. We conclude that the approach is a promising alternative to 14C.  相似文献   

20.
    
ABSTRACT

Since a radiocarbon chronology of the Dalton culture in the Southeast was first proposed, several new sites have been dated. I propose a new chronology based on radiocarbon dates from sites in the Dalton Heartland and its eastern periphery using Bayesian statistical models in OxCal and an analysis of the associated diagnostic projectile points. The analyses indicate that the Dalton culture probably evolved from the Clovis or Gainey phenomena about 12,680?cal?BP (ca. 10,700?BP) and lasted at least until ca. 10,400?cal?BP (ca. 9,200?BP), if not several centuries later. I propose early and late Dalton phases that follow changes in how Dalton points were made and resharpened. It appears that the people living to the east of the Heartland followed a different trajectory of projectile point evolution. There, notched points appear about 11,500?cal?BP, while in the Heartland, true notched points do not appear in large numbers until the Graham Cave point over 2,000 years later. The chronologies demonstrate that early, coeval, region-wide cultural changes may not have been the norm. They also raise interesting questions about how people in the Heartland and its eastern periphery interacted.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号