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1.
In the late nineteenth century, the officers of the Eastern Extension Australasia and China Telegraph Company provided north Australia with a cable connection to London via Java, Singapore, and India. The telegraph project prompted a new era of colonisation in tropical north Australia and the officers of the company sought to ensure that the north would be shaped according to their notions of Indian Ocean colonial culture. They insisted on employing Asian domestic servants in opposition to White Australian nationalists who advocated restrictions on Asian migration. Like the pearling industry, which was permitted ongoing access to Asian labour, the telegraph company drew on the support of liberal parliamentarians, and leveraged their privileged position as providers of imperial telecommunications to develop an elite colonial counter-culture in north Australia.  相似文献   

2.
Archaeological surveys and rescue archaeology have now dated the disappearance of occupied sites in late antiquity with considerable precision, especially in the Rhône valley and northern Gaul. Landscape archaeology has shown a conversion from arable to pasture and reforestation during the same period. Recent studies of the climate of the first millennium show that this was also an extended period of wet and cold climate. How these phenomena were connected is an important research question. A preliminary suggestion made here is that since reversion from arable to pasture affected regions as far apart as Italy and Poland it cannot simply be ascribed to the political and fiscal dislocation of the ancient world, but should be understood as one effect of the climatic anomaly.  相似文献   

3.
Raman spectroscopy and FT-IR imaging analyses of cave wall pigment samples from north Queensland (Australia) indicate that some hand stencils were undertaken during a dry environmental phase indicating late Holocene age. Other, earlier painting episodes also took place during dry environmental periods of the terminal Pleistocene and/or early Holocene. These results represent a rare opportunity to attain chronological information for rock art in conditions where insufficient carbon is present for radiocarbon dating.  相似文献   

4.
ABSTRACT

The US Middle Atlantic region, known for its rich archaeological record and diverse topographic settings, is experiencing a range of climate change impacts, most notably: sea level rise and coastal erosion in its tidal zones. Documented palaeostratigraphic and palynological studies throughout the region provide a record of late Pleistocene/Holocene environmental response to changing climate, confirming observations from other disciplines that the magnitude of modern impacts exceeds past temporal and spatial patterns. The corresponding impact on archaeological resources is great, requiring a renewed effort to document threatened sites while also working with local and state governments to develop mitigation strategies. The Middle Atlantic Archaeological Conference (MAAC) created the Sea Level Rise and Storm Surge Committee to promote regional partnerships in site impact assessment and mitigation strategies. The network highlights the predicament of archaeology in this time of climate change: accelerated research and discovery in the face of catastrophic loss.  相似文献   

5.
五帝时代(距今6-4千年)中国的气候   总被引:1,自引:0,他引:1  
历史学研究表明,古代文献如《史记》记载的五帝:黄帝、颛顼、帝喾、唐尧、虞舜,可能应该视为一个时代,而不局限于五个人。获得较多支持的观点是:这个时代约在6-4kaBP,而且也不限于华夏集团,至少还包括东夷集团、苗蛮集团等。因此,从地望上讲,也不限于中原地区,还包括东部沿海及长江中游。考古学研究表明,6-4kaBP正是新石器时代晚期,后期可称为铜石并用时代。从考古文化来看,中原地区为仰韶文化中、晚期到龙山文化。东部地区为大汶口文化及(山东)龙山文化。其中在3500BC是仰韶文化中、晚期的交界,以及大汶口文化早、中期的交界。环境考古研究表明,6-4kaBP是一个由湿润气候向干旱气候转变的过渡时期。特别6.0-5.6kaBP有湿润气候的证据。4kaBP前后则明显进入晚全新世的干旱期,在此期间还包括5.5kaBP和4.2-4.0kaBP两次气候突变。现代气候资料及模拟研究表明,由早、中全新世的湿润气候向晚全新世的干旱气候转变的主要原因为岁差变化。但是,5.5kaBP及4.2-4.0kaBP的两次冷干气候突变,则可能与热盐环流的突然减弱有关,而热盐环流减弱可能是太阳活动减弱的结果。  相似文献   

6.
Accounts of European explorers between 1623 and 1880 indicate that fires were lit by Aboriginal people on Cape York Peninsula in northeast Australia throughout the dry season (May–October). Diaries kept by three generations of pastoralists in the Musgrave area (1913–1952, 1953–1974 and 1976–1992) show that burning activities were largely confined to a two to six week period between May and early August. The timing of burning depended on the amount and date of cessation of wet season rainfall. More rarely, ‘storm‐burning’, burning under hot conditions within a few days of the first heavy rains of the wet season, was undertaken. Long‐term pastoralists felt a responsibility to use fire wisely and had a detailed knowledge of the role of fire in land management. Their decisions to burn were based on the extent of grass curing, and soil and weather conditions, all of which affected the extent of each burn. They used early dry season fires mainly to maintain forage and control cattle movements. Storm‐burns were reputed to control woody weeds, but were used infrequently because of difficulty in controlling their spread and uncertainty as to when the next rains would stimulate new grass growth.  相似文献   

7.
ABSTRACT

Changes in temperature and precipitation can affect tourist experiences. This study examines how summer park visitation has changed in response to temperature and precipitation extremes. The study goals were two-fold. The first is to introduce a framework and the second is to test it in a pilot region with four mountainous National Parks. The framework is designed to compare the vulnerability of seasonal park visitation to shifts in a combined indicator of temperature and precipitation. It uniquely considers needed measurements, and the data required to conduct an analysis. The second goal is to test it in four destinations in the U.S. Northern Rockies, including Glacier, Yellowstone, Grand Teton, and Rocky Mountain National Parks. The preliminary test reveals outlier cases of visitation under wet and dry extremes. The analysis connects time series climate and visitation data for the peak summer season from 1991–2012. Outlier analysis illustrates more change in extremely dry conditions, with four out of the six dry-year outliers resulting in a visitation decline. Whether this decline in park tourism is attributable to climate features, economic factors, or conscious management decisions, these drops have significant economic impacts: estimates of changes in visitor spending during dry years are between roughly 9 and 90 million USD. These differences may be connected to the popular activities in each park, and the extent they are dependent on weather conditions. This framework can be used to test the relationship between climate and tourism visitation in other regions, in various seasons and time frames. The work may inform the tourist sector in adjusting and planning for a range of conditions. We discuss opportunities and conclude with additional needs for understanding the mechanisms behind risk in mountain park tourism under climate extremes.  相似文献   

8.
Alaska has long held an important role in the late Pleistocene prehistory of the New World. Alaska being situated at the juncture between the Old and New Worlds, scholars have long looked to the Alaskan archaeological record to provide clues into the initial peopling of the New World. As such, Alaska figures prominently in most models of the peopling of the New World. In recent years, however, it has become clear that the late Pleistocene archaeological record of Alaska is characterized by great technological and adaptive diversity, and no single interpretive model can adequately explain that diversity. This paper traces the development of Pleistocene Alaskan archaeology by outlining the history of site discoveries and interpretations. In so doing, it provides a historical perspective on current frameworks of Alaskan Pleistocene prehistory. Based primarily on a search for the first inhabitants of the New World, however, the research questions traditionally guiding Alaskan archaeology have tended to complicate rather than clarify the picture. In some cases, this has led to false expectations and oftentimes contradictory interpretations, many of which still persist, and which can only be resolved by addressing the Alaskan record on its own terms.  相似文献   

9.
Abstract

Quantitative distribution of coprolites, fish bones and mammal bones recovered by wet screening from an Eneolithic midden at Hârsova-tell (southeast Romania) is surveyed within a high resolution stratigraphic framework. The coprolites, all containing bone fragments, are attributed to carnivores/omnivores: dog, pig, man. Highly significant correlation (Spearman's coefficient of rank correlation rs = 0.46, P < 0.0001) between coprolite distribution and the seasonality-related fish bone distribution suggests that seasonality controls the stratigraphic distribution of coprolites recovered by wet screening within middens. Periods of high fish bone input into the midden, correlated with frequent coprolite occurrences, correspond to the warm season (late spring to early autumn). Assessment of potential factors controlling coprolite distribution within the midden suggests that sections of high coprolite concentration reflect preservation of faeces until embedding in sediments, and/or rapid embedding of faeces. Preservation of faeces is favored by dry periods, characteristic of the summer season in the highly continental climate of the region. Rain, freeze-thaw cycles or other wet season processes favor faeces disintegration. Our results suggest that the stratigraphic distribution of coprolites obtained by wet screening may represent an indicator of seasonality in middens. Additional studies are needed to better characterise this relationship and refine interpretations.  相似文献   

10.
We analyse archaeobotanical remains from three excavated rockshelter sites, Jinmium, Granilpi and Punipunil, in the Keep River region, northwestern Australia. The record is dominated by burnt fragmented seed remains from the fruit trees Persoonia falcata and Buchanania obovata, consistent with ethnographic records of whole fruits being pounded into pastes and cakes at the beginning of the summer wet season. Surface seed samples of non-cultural origin are mostly whole and unburnt, and contain higher proportions of grass seeds. Sustained processing of fruit seeds is first visible in the archaeological record about 3500 years ago. Spatial and temporal variation in its intensity is evident since that time until it declines following European colonisation. The decline does not represent total site abandonment, but a reorientation of activities following the ecological and social changes that came with pastoralism. The former included the local decline of P. falcata with more intense fire regimes.  相似文献   

11.
Grass silica short cell phytoliths were sampled from the four lowermost archaeological strata in excavation 1 at Wonderwerk Cave and offer an independent record of climatic change during an episode of Early Stone Age hominin occupation at the cave. Linked to differences in growing season temperature and the geographic distribution of C3 and C4 grasses in southern Africa, fossil grass phytoliths were used to trace palaeoenvironmental shifts at the site. The results suggest that Early Pleistocene environmental conditions at the cave fluctuated: between wetter and drier summer–rainfall growing conditions (C4) towards the end of the Olduvai subchron and the beginning of the subsequent interval of reversed polarity, to mostly dry and cooler winter–rainfall growing conditions (C3), that continued throughout the interval. It ended with a shift towards increased summer rainfall aridity at around one million years ago. The fluctuation between markedly wetter and drier C4 conditions at the cave (NADP-me grass types vs. NAD-me grass types) does not support the premise that the expansion of C4 grasslands was always coupled with increased aridity.  相似文献   

12.
The INTIMATE (Integration of ice-core, marine and terrestrial records) project, the successor to the North Atlantic Seaboard Programme of International Geological Correlation Programme (IGCP-253) ‘Termination of the Pleistocene’, began in 1995 with the aim of integrating proxy climate records from around the North Atlantic during the Last Termination (18–8?ka BP). The INTIMATE remit has since expanded geographically to include the entire Atlantic basin and Australasia, while an extended temporal framework now covers the early Holocene and the Last Glacial cycle. This short paper outlines the principal achievements of the INTIMATE research community, which include the development of an event stratigraphy for the North Atlantic region; the establishment of protocols for ice–land–ocean correlation; important contributions to geochronology, most notably to tephrochronology, and to palaeoenvironmental and palaeoclimatic reconstructions; and the designation of the Greenland ice-core record as the global stratotype for the Pleistocene–Holocene boundary. Future directions of the INTIMATE programme are also briefly considered.  相似文献   

13.
Although trephination of sub-adults in antiquity is rare, scurvy both infantile and adult, is even more rare in the archaeological record. Pathological changes appearing in the maxilla, mandible and orbits of a child of 8–9 years of age are highly suggestive of infantile scurvy. Advanced forms of this metabolic disturbance lead to severe subperiosteal haemorrhaging, at times turning the skin of the face and skull black. This condition may have led to the trephination along the sagittal suture as a form of blood letting in hopes of draining the subperiosteal haemorrhage in the cranium. Although cause and effect are often confusing in antiquity, the surgical intervention presented here led to the ultimate death of the child.  相似文献   

14.
Lithic technology, subsistence modes, mobility strategies, and habitation modes in the northern part of Northeast China co-evolved during the Paleolithic-Neolithic transitional period, from the end of the Pleistocene through the beginning of the Holocene, exhibiting notable continuity and the phases of development. The investigation of climate, environment, population, technology, subsistence, and mobility is helpful in understanding environmental adaptation strategies and reconstructing cultural adaptation processes. The study of paleoclimatic records in this region indicates that remarkable climatic turbulence during the late Pleistocene, alongside extreme fluctuations in temperature and humidity, significantly influenced human technological systems and behavior.  相似文献   

15.
Shellfish metrical data are a source of information about the exploitation of marine resources in the past. In this study, we propose a methodological approach based on the size structures of different rocky intertidal gastropod species. Three limpet species (Patella vulgata, Patella intermedia and Patella ulyssiponensis) and the toothed topshell Osilinus lineatus are studied from two sites in Cantabrian Spain: La Garma A and Los Gitanos caves over a period of 10 000 years, covering the Pleistocene–Holocene transition. Data are also supplied about a further sea snail species, the periwinkle Littorina littorea (Upper Magdalenian). A reduction in size can be seen, between the upper Magdalenian and the late Neolithic, in the case of the first four species. The explanation for this decline is probably related to the climate change that occurred in the transition between the Late Pleistocene and the Holocene, but it is possible that human impact might also have influenced shell sizes in the Mesolithic and Neolithic.  相似文献   

16.
In late 2019 and early 2020, bushfires consumed vast swathes of land across southern parts of Australia. The scale and intensity of the fires was unprecedented and the extent of destruction was without parallel. This article asks to what extent anthropology's focus on culture and cultural processes can inform our understanding of the complex politics generated by a situation such as this. It is argued that local people, who were directly affected by the fires, and the political elite, who commented on them from a distance, had different understandings of – and attached different meanings to – these extraordinary events. These cultural differences were especially evident on the question of the extent to which climate change was responsible for generating this environmental disaster.  相似文献   

17.
Traditional syntheses of the archaeology of the late Pleistocene period in South America have focused primarily on the peopling of the continent by North American cultural groups and on identifying associations among regional sites. This focus has tended to ignore the widespread culture diversity of the period and the possible effects of different paleolandscapes on human migration and colonization, such as the presence of unglaciated tropical and temperate environments in the northern lowlands, the gateway to the interior. The earliest known cultural assemblages are characterized by various unifacial and bifacial lithic industries that may represent regional processes reminiscent of an Archaic lifeway. The major archaeological sites and associated artifact assemblages are examined in terms of regional and continental patterns of environmental and cultural change. Results suggest that the Pleistocene archaeological record of South America must be explained in its own terms and that the events and processes producing this record either occurred earlier than previously thought or are very different from those in North America.  相似文献   

18.
Hardened red zones and rare melt rocks are puzzling and rare features in the Middle Pleistocene sediments of the Olorgesailie Formation of the southern Kenya Rift. We propose that combustion metamorphism and melting produced these zones. This is evidenced by field observations, chemical composition, X-ray diffraction and melting experiments. Plant-rich beds and disbursed plant matter served as fuel. Probably lightning generated surface fires that ignited carbonaceous beds exposed in gullies. The burning then proceeded underground. Melt rocks and red thermally metamorphosed zones within beds distinguish combustion metamorphism from reddening of paleosols by surface vegetation fires. Diagenetic oxidation has removed much of the carbonaceous material from the paleosols and marsh deposits, except where they are included in dense metasediments. Extraordinarily high temperatures of about 1200°C, which are essential to producing the melt rocks, required plant matter buildup, burial of the plant fuel under at most a few metres of sediment, and then rapid burning under dry conditions. This sequence of events points to one or more extreme droughts between 601,000 and 493,000 years ago, the period represented by upper Member 12 and Member 13 of the Olorgesailie Formation. Combustion metamorphism was not recognized in early studies at Olorgesailie, partly because it is not a widely taught nor published subject. Other Pleistocene East African basins and similar sites may contain as yet unrecognized products of combustion metamorphism that may prove of paleoclimatological importance.  相似文献   

19.
The processes that led to the transition from small mobile groups of hunter-gatherers in the Late Pleistocene to sedentary communities of the Early Holocene in north China are poorly understood. The Donghulin site in Beijing was occupied at the onset of the Holocene, and excavations have revealed a rich archaeological record for investigating the changing subsistence strategies during this transitional period. A functional study of two grinding stones (a slab and a handstone) near a burial dated to 9220–8750 cal BC at Donghulin investigated the range of plants exploited during this early occupation period. Starch residues indicate that the grinding stones were used for processing plants, and confirm processing of acorns, which is consistent with the incidence of oak in the pollen record. The usewear, with only rare patches of developed polish, suggests that plant parts of low silica content were processed, although usewear on the handstone suggests processing of two or more plant taxa. The results suggest that the use of grinding stones to process plant foodstuffs, particularly acorns, may have played a major role in the subsistence strategy during the transitional period to sedentism and agriculture in some parts of north China.  相似文献   

20.
Gi with sealed middle stone age and later stone age occurrences is located in the Dobe Valley along the Botswana-Namibia border. The phases of middle stone age settlement were linked to a semiarid streamway during the early Upper Pleistocene. A major humid interval followed, when a large lake was ponded in the Dobe Valley. Later stone age settlement appeared after this lake disappeared and was replaced by a mosaic of pans (ephemeral lakes). Subsequently, another period of humid environment favoured another valley-wide lake during the late Upper Pleistocene. Later stone age settlement resumed when this second lake deteriorated into the modern pan terrains of the Dobe Valley. In total, the Gi beds record multiple environmental changes both more humid and more arid than present during the Upper Pleistocene and Holocene, as well as a variable array of adaptive opportunities for prehistoric settlement.  相似文献   

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