基于三维激光扫描技术在崖墓保护中的应用     

冯仕超  郭兴平  韩彦伟  裴志 《地理空间信息》2022,20(2):57-59

以满城汉墓中山靖王墓室为例,利用三维激光扫描技术对古代崖墓进行扫描建模研究,获得了墓室真实尺寸的三维彩色模型,研究所制定的流程方案为今后开展类似研究提供了参考依据.  相似文献   

An Early Pleistocene hippopotamus from Westbury Cave,Somerset, England: support for a previously unrecognized temperate interval in the British Quaternary record     

Neil F. Adams  Ian Candy  Danielle C. Schreve 《第四纪科学杂志》2022,37(1):28-41

Although fossil assemblages from the late Early Pleistocene are very rare in Britain, the site of Westbury Cave in Somerset, England, has the potential to address this gap. The mammal fossils recovered previously from the Siliceous Member in Westbury Cave, though few in number, have hinted at an age for the deposits that is as yet unparalleled in Britain. Here, we describe the first bona fide occurrence of Hippopotamus in the British Early Pleistocene, discovered during recent reinvestigation of the Siliceous Member. The hippo fossil indicates a refined biochronological age of ca. 1.5–1.07 Ma for the Siliceous Member and a palaeoclimate that was warm and humid, which accords well with previous palaeoenvironmental inferences. A synthesis of late Early Pleistocene hippo occurrences suggests that the Siliceous Member hippo may have been part of an early colonization of north-west Europe by these megaherbivores, possibly during MIS (Marine Oxygen Isotope Stage) 31. Alternatively, it evidences a currently cryptic northward migration during an even earlier temperate phase. In either case, the Siliceous Member is likely to represent a warm period that has not been recognized previously in the British Quaternary record.  相似文献   

Beta dose heterogeneity in sediment samples measured using a Timepix pixelated detector and its implications for optical dating of individual mineral grains     

《Quaternary Geochronology》2022

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A preliminary study of natural environmental change and its impact on early Late Paleolithic people in the northeast central Korean Peninsula during Marine Istope Stage 3 (40–30k cal a bp)     

Sangheon Yi  Chang-Gyun Han  Keun-Chang Oh  In Sun Seo  Dongwook Kim  Jaeyoung Lee  Min Han  Hanwoo Choi  Jaesoo Lim  Sujeong Park  Chang-Pyo Jun  Taesop Cho 《第四纪科学杂志》2022,37(1):100-113

We comprehensively analyzed sediments obtained from an archeological excavation. A trench sediment profile of Maedun Cave (MC), South Korea, was analyzed geoarchaeologically. Multi-proxy analyses (palynomorphs, grain size, magnetic susceptibility, animal bones and artifacts) reflected the vegetation, hydroclimate and lives of prehistoric people at Marine Isotope Stage (MIS) 3 (ca. 40–30k cal a bp ) in the early Late Paleolithic. The palynoflora consisted of pollen and non-pollen palynomorphs. Under the air-circulation system in the cave, anemophilous pollen flowed in during the day, whereas waterborne pollen and spores, and freshwater algae, were transported by flooding during the summer monsoon rainy season. Mixed conifer and deciduous broad-leaved forest with an understory of pteridophytes flourished around the north-east central Korean Peninsula during MIS 3. Freshwater algae and grass pollen records may reflect precipitation intensity. It is assumed that they had flowed in during flooding caused by high precipitation during the enhanced East Asian summer monsoon, corresponding to Dansgaard–Oeschger (D/O) events 5 and 8 of δ¹⁸O GISP2 and Hulu Cave. The prehistoric people hunted herbivorous animals in the area around MC and sheltered inside it seasonally. They also used the grains of oats growing near the dwelling as a source of food.  相似文献   

也考徐霞客与太湖西山林屋洞          下载免费PDF全文

邹松梅  彭健怡  詹庚申 《江苏地质》2011,35(2):219-221

在概略总结了徐学界对徐霞客游林屋洞的研究成果资料基础上,通过对水文地质条件、气候条件等方面的分析,提出了徐霞客于公元1607年首次出游太湖时未能进入林屋洞的观点。徐霞客游林屋洞行动与水文地质条件和气候条件等相悖,徐霞客对林屋洞内景观描述是徐学界的推想。徐霞客在深感遗憾的情况下,立志要游历所到之处几乎所有的岩溶洞穴。  相似文献