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61.
The present paper describes and illustrates an Early Permian brachiopod fauna collected from two localities from the upper part of the type Dingjiazhai Formation near Youwang, 30 km south of Baoshan in the Baoshan block, western Yunnan, China. The brachiopod fauna is dominated by Stenoscisma sp. and Elivina yunnanensis sp. nov. and exhibits strong generic and some specific links with faunas from the Bisnain assemblage of Timor and the Callytharra Formation of Western Australia and, to a lesser extent, faunas from the Jilong Formation of southern Tibet, the Tashkazyk Formation of southeastern Pamir, the lower Toinlungkongba Formation of northwestern Tibet, the upper Pondo Group of central Tibet, and the Jimba Jimba Calcarenite of the Carnarvon Basin, Western Australia. Based on these correlations, a Late Sakmarian (Sterlitamakian) age is preferred for the Dingjiazhai brachiopod fauna. Two new species are proposed: Globiella youwangensis sp. nov. and Elivina yunnanensis sp. nov.  相似文献   
62.
胡芳 《攀登》2010,29(6):125-127
媒介形式和媒介内容的日趋多样化,使作为重要知识储备群体的大学生面临着空前复杂的媒介环境。在这一形势下,依托高校图书馆服务功能的拓展,开展大学生媒介素养教育具有重要的现实意义。  相似文献   
63.
Demand for service in location modelling is often evaluated based on the spatial proximity of fixed and static reference locations of demand (e.g. home) to a facility, which ignores person‐specific activity–travel patterns and the temporal changes in demand for service throughout the day. To address these limitations, this study draws upon recent developments in space–time measures of individual accessibility to explore the spatial and temporal structures of demand by considering individuals' space–time constraints and impact of existing urban structures. Based on a time‐geographic framework, eight space–time demand measures were developed and compared with three conventional location‐based demand measures for 12 hospitals through an empirical study conducted in Columbus, Ohio. The results show that geographic proximity between clients' home and facilities may not be an effective indicator for service demand, and conventional demand measures tend to underestimate potential demand for service in most situations. The study concludes that space–time demand measures that take into account people's activity‐travel patterns in space–time would lead to better estimation of demand for service in most cases.  相似文献   
64.
During the late Longshan period (ca. 4200–3900 BP) settlements on the Central Plains of China underwent a diversification in food production technologies, which set the stage for rapid economic and social development. The introduction of novel domesticates such as rice, wheat, cattle, and sheep not only provided more food choices, but also changed ideas concerning land use, farming techniques, and the use and mobilization of large scale labor forces. To better understand the contribution that these new dietary items and practices made to shaping the late Longshan period societies, a stable isotope ratio study of humans (n = 12) and animals (n = 42) was conducted at the late Longshan period site of Wadian. The human δ13C and δ15N values are clustered into two distinct groups. One group of nine individuals (δ13C = −9.9 ± 0.7‰; δ15N = 7.5 ± 0.5‰) had a predominately C4 diet based on millet grains with little protein input from the domestic animals. The other group of three individuals (δ13C = −14.3 ± 0.8‰; δ15N = 10.2 ± 0.3‰) had a mixed C3/C4 diet of millets and rice and were consuming sheep and cattle. The animals also displayed dietary diversity with the pigs (δ13C = −11.3 ± 2.5‰; δ15N = 6.9 ± 1.0‰, n = 10) and dogs (δ13C = −10.1 ± 1.0‰; δ15N = 7.2 ± 1.1‰, n = 7) having mostly a C4 plant based diet (millets). In contrast, the cattle (δ13C = −12.8 ± 2.1‰; δ15N = 7.6 ± 0.7‰, n = 9), sheep (δ13C = −16.7 ± 0.9‰; δ15N = 7.6 ± 0.1‰, n = 2), and cervids (δ13C = −20.8 ± 0.9‰; δ15N = 5.0 ± 1.2‰, n = 10) had diets with a greater contribution from C3 sources such as rice and wild plants. The discovery that humans and animals had different subsistence patterns indicates dietary complexity at Wadian and that rice agriculture, and cattle and sheep husbandry practices were already an important part of the local economy by the late Longshan period in the southern region of the Central Plains of China. Copyright © 2015 John Wiley & Sons, Ltd.  相似文献   
65.
河南禹州瓦店遗址出土植物遗存分析   总被引:1,自引:0,他引:1  
《河南禹州瓦店遗址出土植物遗存分析》是一篇浮选报告。浮选法是通过考古发掘获取古代植物遗存的最为有效的手段。通过在瓦店遗址开展的浮选工作,获得了丰富的属于龙山时代的炭化植物遗存,其中包括了粟、黍、水稻、小麦和大豆五种农作物。通过量化分析发现,在出土的农作物品种中,粟和水稻的出土概率几乎相当,这说明,北方旱作农业的代表作物~粟和南方稻作农业的代表作物~水稻,在瓦店遗址的龙山时代的农业生产中是同等重要的。文章从文化因素和环境背景两个方面对这一现象进行了分析,认为文化因素可能起到了更大的作用。瓦店浮选结果中发现了原产于西亚的小麦,说明至迟在距今4500年前后小麦已经传入中原的腹心地区。  相似文献   
66.
方维甫 《收藏家》2010,(2):16-20
范季融是美国著名的中国文物收藏家。1991年以来,曾多次向国家捐赠青铜器、书画等珍贵文物,在中、美两国博物馆界产生了重大影响。  相似文献   
67.
伪满洲国是世界反法西斯战争期间历时最长的伪政权,其控制范围也在日本、德国扶植的其他伪政权之上。伪满洲国存在期间,总计有二十余个国家和政权对其宣布承认。本文拟从多个角度深入分析伪满洲国的承认问题,以揭示围绕这个伪政权展开的国际关系的全貌,同时意在丰富对这一问题的国际法认识。  相似文献   
68.
古文字资料中有如下两则材料: ()<古玺汇编>(简称<汇编>)0332号 ()<古陶文汇编>9·4 两例右面的字在<汇编>1936号作形,3288号作形.另在<汇编>1935号中有作形的字,其字在<汇编>1937号作形,<汇编>1938号作形,<汇编>1939号作形,这些皆增加了邑旁(详<战国文字编>1084页).  相似文献   
69.
金沙玉器制作工艺的初步观察   总被引:1,自引:0,他引:1  
王方 《中原文物》2006,(6):77-83
2001年发现的成都金沙遗址现已出土了2000余件玉器,数目可观,种类繁多。大量的玉器造型规整,制作精细。最为重要的是许多器物上都留下了与制作工艺有关的痕迹,其中更有一些半成品和玉料,这就为我们研究古玉制作工艺提供了极其重要而又丰富的实物材料。  相似文献   
70.
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