A contribution to the study of post-depositional alterations of pottery using TL dating analysis

In luminescence dating, the potassium concentration significantly contributes to the dose rate value in the age estimation. Within this study, fine-grain thermoluminescence dating has been applied on sherds of calcareous pottery of known age, excavated at a Roman site in Mallorca, Spain. For those of the samples that showed signs of severe potassium leaching, according to chemical and mineralogical examination, the thermoluminescence analysis provided overestimated dates. By using the known archaeological age of the samples, a corrected dose rate value can be estimated which provides the potassium concentration averaged for the burial period. Finally, a step-like model can then be used to estimate the fraction of the burial period after which most of the alteration effects took place.     

Urban Planning System in Contemporary Spain

This work analyses the main Spanish legislative and urban planning instruments, highlighting some of the most important structural problems of the current Spanish urban realities. The survey on legislation runs from the first Land Use Act of 1956 to the decentralization of the administration and the culmination of the transfer processes to the respective Spanish regions. Later, we study the complete well-structured hierarchy of urban planning instruments in use at present. Finally, we analyse how these and other factors have an influence on the capacity to control housing prices and on a lack of sustainability characterized by the excessive urbanizing use of the land.     

曲阳北岳庙唐李克用题名碑浅析

现藏于河北曲阳北岳庙的唐李克用题名碑是李克用所书。唐中和五年(885年),幽州李克举等犯易定,李克用领兵救援时题字勒石于曲阳北岳庙,其内容可证史,并补史书之遗误。     

有情之图画,无声之乐章——小议中国书法、篆刻的欣赏

欣赏中国书法、篆刻,是一门学问。人们对于书法篆刻的兴趣和爱好,往往是出于对它们欣赏。其实,欣赏本身就是学习中不可缺少的实践活动。     

文物保护原则之探讨

文物保护原则是指导文物保护具体实践的理论基础。本文对不改变文物原状之基本原则的内涵进行了深入探讨,并且论述了考古现场文物保护和选择文物保护材料的原则。     

湖北郧县直立人遗址研究新进展

郧县人Ⅰ号头骨、郧县人Ⅱ号头骨分别于1989年5月和1990年6月出土于中国湖北省郧县直立人遗址。2000年以来中法两国学者对遗址进行了深入研究,在考古学、古人类学、沉积学、微观形态学、地球化学、磁性地层学、地球年代学和孢粉学研究方面取得了一些新成果。研究成果显示遗址的年代在距今984000~780000年之间,两具头骨化石的年代在距今936000年左右,是世界上更新世早期重要的直立人化石之一;郧县人遗址石制品面貌比较古老,是中国南方典型的砾石石器文化传统。     

Dendrochronological and radiocarbon dating of subfossil wood from the Morava River basin

The paper deals with dendrochronological and radiocarbon dating of subfossil trunks found in the basin of the Morava River. The research into subfossil trunks had been conducted in the Czech Republic in the past but the research stopped in 2001. 160 records of measurements of subfossil, predominantly oak trunk samples, are preserved from that time. Three years ago the research was reopened and again the most trunks were found in the basin of the Morava River. 92 samples of oak trunks and 7 samples of other tree species (poplar, elm, maple, beech) were taken from selected sites. The samples were processed in compliance with the standard dendrochronological methodology. To date the samples, Czech, Austrian, Polish and German standard chronologies were used. In cases when the dendrochronological dating was unsuccessful, the samples were sent for radiocarbon dating. In total, 35 samples were dated, mainly by the radiocarbon method. Subfossil trunks from gravel pit Tovačov were dated and classified into 4 different periods, the oldest being from 2780–2190 BC. In Osek nad Bečvou, the samples were taken from two sites. Whereas from the 4 trunks taken in the river channel each was from a different period, the trunks from the gravel pit come from 981–1015 AD. The trunks found in the Morava River basin near Strážnice were dated to the 10^th–15^th century. In the future, we expect to extend the amount of the acquired samples with the aim to create a link to the existing standard chronology or to create a long floating average treering curve.     

中国共产党领导民族振兴的90年

中国共产党的90年,是领导中华民族重新崛起进而走向伟大振兴的90年。大体看来,前28年侧重于民族独立和民族解放,为民族振兴大业创造政治前提;中30年侧重于在中国实践马克思、恩格斯社会主义建设模式;近32年侧重于探索中国特色的社会主义发展模式并形成体现中西文化结合的中国特色社会主义的完善形态。     

Differentiation of archaeological maize (Zea mays L.) from native wild grasses based on starch grain morphology. Cases from the Central Pampas of Argentina

This paper presents, for the first time, a detailed study, from an archaeological perspective, of the morphological characteristics of the starch grains within the kernels of selected native wild grasses found in the Central Pampas of Argentina. We compared native wild grasses to maize starch grains, which can be distinguished from each other based on their size, shape and other attributes. The majority of the studied grains did not share morphological characteristics with maize starch grains. Considering this, it can be said that, if irregular and polyhedral grains with transverse or radial fissures dominate the starch assemblage, maize identification may be done on the basis of both morphology and size. Additionally, this research contributes to the characterization of the starch grains of the Panicoideae subfamily, which includes maize. Several classes of simple and compound starch grains are described and defined for native species of Pooideae, Chloridoideae, Arundinoideae, and Panicoideae subfamilies. The results obtained may constitute a baseline for the future determination of maize and wild grass use in archaeological contexts belonging to Middle/Late Holocene hunter–gatherers in the Pampas of Argentina and neighboring areas.     

Isotopic Composition of Lead in Copper Ores and a Copper Artefact from the La Profunda Mine (León,Spain)

This paper continues the characterization of the lead isotopic fingerprint of ancient copper mines in the north‐west of Spain. In this work, the lead isotopic compositions found in copper ores from the La Profunda mine are presented. Azurites and malachites sampled from this deposit were subjected to lead isotope analysis by multicollector ICP–MS. The results showed a clear radiogenic lead signature compatible with the presence of uranium‐rich minerals (such as zeunerite) in the same mining complex. Moreover, a rare copper artefact, found in the galleries of the mine during its modern exploitation, was also analysed and showed that local mineral was used for its manufacturing.