全文获取类型
收费全文 | 1126篇 |
免费 | 28篇 |
出版年
2021年 | 6篇 |
2020年 | 32篇 |
2019年 | 50篇 |
2018年 | 49篇 |
2017年 | 66篇 |
2016年 | 51篇 |
2015年 | 23篇 |
2014年 | 37篇 |
2013年 | 284篇 |
2012年 | 27篇 |
2011年 | 30篇 |
2010年 | 24篇 |
2009年 | 29篇 |
2008年 | 24篇 |
2007年 | 29篇 |
2006年 | 28篇 |
2005年 | 21篇 |
2004年 | 22篇 |
2003年 | 20篇 |
2002年 | 12篇 |
2001年 | 22篇 |
2000年 | 8篇 |
1999年 | 14篇 |
1998年 | 5篇 |
1997年 | 8篇 |
1996年 | 8篇 |
1995年 | 10篇 |
1994年 | 11篇 |
1993年 | 8篇 |
1992年 | 6篇 |
1990年 | 8篇 |
1989年 | 7篇 |
1987年 | 9篇 |
1986年 | 9篇 |
1985年 | 10篇 |
1984年 | 9篇 |
1983年 | 5篇 |
1982年 | 6篇 |
1981年 | 8篇 |
1980年 | 9篇 |
1979年 | 11篇 |
1978年 | 11篇 |
1977年 | 5篇 |
1976年 | 9篇 |
1975年 | 9篇 |
1974年 | 4篇 |
1973年 | 7篇 |
1972年 | 9篇 |
1970年 | 6篇 |
1969年 | 4篇 |
排序方式: 共有1154条查询结果,搜索用时 109 毫秒
991.
C. G. Cumberpatch D. R. Griffiths C. C. Kolb H. Neff V. Roux O. Stilborg B. Sillar A. Livingstone Smith C. A. Pool 《Archaeometry》2001,43(2):269-299
Sillar, B., and Tite, M. S., 2000, The challenge of ‘technological choices for materials science approaches in archaeology, Archaeometry 42 , 2–20. Livingstone Smith, A., 2000, Processing clay for pottery in northern Cameroon: social and technical requirements, Archaeometry 42 , 21–42. Sillar, B., 2000, Dung by preference: the choice of fuel as an example of how Andean pottery production is embedded within wider technical, social, and economic practices, Archaeometry 42 , 43–60. Pool, C. A., 2000, Why a kiln? Firing technology in the Sierra de los Tuxtlas, Veracruz (Mexico), Archaeometry 42 , 61–76. 相似文献
992.
Indo-Iranian Journal - 相似文献
993.
Indo-Iranian Journal - 相似文献
994.
Scavenging is one of the primary taphonomic processes shaping the final composition of fossil faunal assemblages. The taphonomic effect of scavengers is variable and must be understood in the context of the causes of that variation. In this study, we investigated relationships between the El Niño Southern Oscillation (ENSO), variable rainfall and scavenging on 20–40 kg mammal carcasses in semi‐arid New South Wales over four years. Following periods of above‐average rainfall (coincident with the La Niña phase of the ENSO), there was an increased availability of non‐carrion food and scavenging activity was moderate. Following below‐average rainfall (coincident with the El Niño phase of the ENSO), foraging options diminished, leading to a greater importance of carrion in the diet of scavengers and a resultant increase in carcass disturbance, transport and destruction by scavengers. Feral pigs (Sus scrofa) and red foxes (Vulpes vulpes) were the most taphonomically significant scavengers in the study. Australian ravens (Corvus coronoides) and wedge‐tailed eagles (Aquila audax) were active scavengers throughout the period of the study, but had little impact on bone survival. Lace monitors (Varanus varius) also fed mostly on soft tissue and were only present seasonally. We found that climate variability in the form of short‐term oscillation can result in significant variation in the impact of scavengers on carcasses and may be an important consideration when evaluating site formation scenarios and biases in fossil faunal assemblages. Copyright © 2006 John Wiley & Sons, Ltd. 相似文献
995.
We undertook combined stable carbon, nitrogen and sulphur isotope analysis of marine and terrestrial faunal remains from two prehistoric coastal shell middens in Denmark. The aim of the investigation was to establish whether sulphur isotopes were useful in discriminating terrestrial and marine consumers in this region. We found that sulphur isotopes do separate marine and terrestrial fauna but, contrary to our expectations, we observed a negative correlation between δ34S and δ13C values for marine fauna. We conclude that similar studies over a broader geographical range are needed before sulphur isotopes can be reliably used to study coastal resource exploitation. 相似文献
996.
997.
998.
999.
1000.
Breeden JO 《The Georgia historical quarterly》2001,85(2):313-314