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81.
Bout coupé handaxes are widely considered to be a cultural and typological marker for the Middle Palaeolithic in Britain, and are traditionally dated to around the end of the Last Interglacial or the beginning of the Devensian glaciation. Much debate has surrounded the typological validity of this form, but relatively little attention has been paid to the stratigraphical integrity of the sample. This paper takes a fresh look at the bout coupé problem using a select sample of better provenanced pieces and employs the most current chronological frameworks. We conclude that there is a temporally restricted bout coupé phenomenon in the British Isles, but contrary to previous claims these handaxes cannot be regarded as an unequivocal marker for the Mousterian and nor do they belong to the early Upper Pleistocene. Rather the bout coupé phenomenon marks the recolonization of Britain by Neanderthal populations during OIS 3 (59–41 ka). This further suggests a bipartite division of the British Middle Palaeolithic, each period having a quasi-distinctive lithic signature. 相似文献
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James P. Delgado Michael L. Brennan Kelley Elliott Russell E. Matthews Megan Lickliter-Mundon John G. Lambert Frank Cantelas Robert V. Schwemmer 《Journal of Maritime Archaeology》2018,13(2):123-144
In August 2016, a multidisciplinary team conducted the first archaeological survey of the deep-water (829 m) wreck of the ex-USS Independence (CVL22) using the remotely operated vehicles Argus and Hercules. The survey provided 34 h of direct observation with video and still camera documentation of the wreck, which the previous year had been initially identified with a limited three-dimensional sonar survey of the site. The 2016 assessment added considerably to an understanding of changes to Independence after its use as a target vessel for the 1946 atomic bomb tests at Bikini Atoll, as a radiological laboratory, training facility, and finally as a receptacle for “nuclear waste” prior to its scuttling off California in January 1951. The location and detailed examination of the wreck, along with additional archival research, offers a more nuanced definition of the carrier’s role within the context of the Cold War between the USSR, its adversaries and the race to establish nuclear supremacy, as well as site formation processes and ongoing biological colonization of the wreck site. As well, no evidence of residual radiological contamination was noted during the mission. 相似文献
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James P. Delgado Russell E. Matthews Megan Lickliter-Mundon Michael L. Brennan John G. Lambert 《Journal of Maritime Archaeology》2018,13(2):145-166
Submerged aircraft are a newly emerging area of study in underwater archaeology. In August 2016, a multidisciplinary team conducted the first archaeological survey of the deep water (829 m) wreck of the ex-USS Independence (CVL22), a WWII era light carrier scuttled off San Francisco after its use as an atomic bomb test target and subsequently as a floating radiological laboratory and training facility. Using the remotely operated vehicles Argus and Hercules, the expedition documented and studied Independence including assessment of a sonar target thought to be an aircraft resting inside the sunken carrier’s forward elevator pit. The survey confirmed the presence of a plane, but previous assumptions as to the type and identity of this aircraft, based on archival records, proved erroneous. As well, the remains of a second, and possibly a third, aircraft were also encountered during the 2016 survey. These artifacts, through their context, both as naval warplanes on an aircraft carrier, and as test articles for seaborne nuclear weapons development, more precisely fit within the parameters of maritime archaeology. They join other archaeological evidence at the Independence site that helps define its significance within the context of World War II and the Cold War. 相似文献
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Anna Rufà Ruth Blasco Thierry Roger Mathieu Rué Camille Daujeard 《Archaeological and Anthropological Sciences》2018,10(6):1459-1476
The presence of processed birds in the archeological faunal record is considered key to assessing human dietary evolution. Taphonomic studies on birds from sites older than Marine Isotope Stage (MIS) 2 have become relevant in the last few years, leading to the proposal of more complex scenarios of human subsistence. Several works have demonstrated direct evidence of bird consumption by Homo prior to anatomically modern humans in Europe; however, others support the hypothesis of non-anthropogenic bird accumulations. This has led to the necessity of determining what elements or factors cause the human exploitation of birds in some archeological sites before the end of the Pleistocene. The Grotte des Barasses II site is located within this framework. Short-term human occupations have been attested by the presence of lithic tools and processed macrofaunal remains. Additionally, a small assemblage of bird bones has also been recovered. Here, we present a detailed taphonomic study with the aim of exploring possible relationships between these avian taxa and human occupations. Despite the fact that Neanderthals inhabited the cave, avian specimens show damage pointing to different causative agents. Direct evidence (digestion, gnawing) indicates that mammalian carnivores and nocturnal raptors were mainly involved in the accumulation of bird bones. We propose some factors that might determine whether or not small game was exploited in this specific locality and emphasize the importance of such analytical approaches in the general interpretations of the Pleistocene sites. 相似文献
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Roger B. Parks 《政策研究杂志》1983,12(2):337-346
A methodology for determining the relative technical efficiency of public decision making units is described. The methodology allows the identification of those units which are most efficient at converting physical inputs to physical outputs, and the calculation of the relative efficiency of less efficient units based on the results obtained by the most efficient. An illustration of the methodology is supplied using data from 469 municipal police agencies. Some policy suggestions based on the illustration are offered. 相似文献
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