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The reflection of human activity in the sediments of Iwankowskie Lake from Subatlantic Phase (Polish Outer Carpathians) 总被引:2,自引:0,他引:2
Anna Bucała Włodzimierz Margielewski Leszek Starkel Krzysztof Buczek Valentina Zernitskaya 《Geochronometria》2014,41(4):377-391
The paper presents the analysis of organic and mineral sediments filling the depression, which developed over the landslide located at the slope (767–773 m a.s.l.) of Lubań ridge decscending to the Ochotnica river valley in the Polish Flysch Carpathians. The landslide formed in an early stage of the Subatlantic Phase (2490 ± 35 BP). The top of peat is dated at 1360 ± 50 years BP and is covered by 72 cm of clayey silts with some sandy intercalations, which indicate slopewash after deforestation. The pollen of ruderal plants and Cerealia (undiff.) reflect agricultural activity in the surroundings. The fragments of charcoal indicate the age of the forest clearance to the first half of the 17th century. The late forest clearance at the elevated north exposed slopes followed 200–300 years later in relation to the foundation of the village at the valley floor. 相似文献
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Maria C. Escobar-Lemmon 《政策研究杂志》2006,34(2):245-263
This article considers the role of executives and legislatures in authoring decentralizing legislation to study the type of decentralization each sought to achieve. I find that differences across branches are more significant than differences across political parties. The executive played a significant role in the process of decentralization emphasizing administrative forms of decentralization. Congressional efforts to write laws, on the contrary, focused on the political aspects. Thus, the involvement of both branches in policymaking contributed to the multidimensional form and high degree of decentralization in Colombia. 相似文献
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Changing patterns of carnivore modification in a landscape bone assemblage, Amboseli Park, Kenya 总被引:2,自引:1,他引:1
This study compares the landscape-scale taphonomic signal of carnivore modification to the surficial bone assemblage in Amboseli Park, Kenya as it was in 1975 and 2002–2004. Change in predator abundances over time provides a means of assessing the taphonomic signal of carnivore-mediated bone consumption and destruction under differing ecological conditions and varying levels of conspecific competition for resources. The landscape assemblage indicates taxonomic variation in the patterning of carnivore modification to ungulates of different size classes as well as within equivalent size classes. Analyses of long bone elements indicate that the differential destruction of limb ends and the strength of the correlation between limb end abundance and bone mineral density provide an indication of the intensity of carnivore modification to a faunal assemblage. The ability to infer levels of carnivore modification based on limb elements can provide faunal analysts with the tools to determine whether the taphonomic signals in the fossil record relate to carnivore modification, hominin transport of appendicular elements, or both. 相似文献
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Paul Peter Anthony Mazza Fabio Martini Benedetto Sala Maurizio Magi Maria Perla Colombini Gianna Giachi Francesco Landucci Cristina Lemorini Francesca Modugno Erika Ribechini 《Journal of archaeological science》2006
Two stone flakes partly covered in birch-bark-tar and a third without tar on it were discovered in fluvial gravel and clay in central Italy, in association with the bones of a young adult female Elephas (Palaeoloxondon) antiquus and several micromammals. The probable chronology of the stone flakes is compatible with the late Middle Pleistocene suggested by the site's small mammals and geological context. The fauna indicates a cool stadial episode before isotope stage 6. That age means the flakes are the oldest ever found hafted with tar and indicate a greater capacity for late Middle Pleistocene hominins to utilize raw materials available during cold phases. 相似文献