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Domenico Miriello Donatella Barca Andrea Bloise Annamaria Ciarallo Gino M. Crisci Teresa De Rose Caterina Gattuso Flavia Gazineo Mauro F. La Russa 《Journal of archaeological science》2010
This work describes the compositional characterisation of coccciopesto and natural pozzolanic mortars sampled in the Regio VI area of the archaeological site of Pompeii, with particular reference to the Casa di Pansa in Insula 6 and Casa 17 in Insula 2. Samples were studied by optical microscopy and analysed by XRF, SEM-EDS, LA-ICP-MS and XRPD. The XRF and SEM-EDS data, subjected to multivariate analysis (cluster analysis), identified the three main construction phases involved in building the Casa di Pansa. In addition, mineralogical and petrographic characteristics of the aggregate were determined and found to be compatible with pyroclastic deposits from the volcano Vesuvius. Study revealed C–S–H phases in the binder, due to pozzolanic hydration phemomena of hydrated lime with cocciopesto and natural pozzalana. 相似文献
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Wolfgang Loibl Johann Züger Mario K?stl 《Standort - Zeitschrift für angewandte Geographie》2009,17(2):94-100
Der letzte Bericht des Intergovernmental Panel on Climate Change (IPCC 2007) erl?utert die weltweiten Auswirkungen des Klimawandels
deutlich – allerdings aus globaler Sicht. Um zu kl?ren wie sich das regionale Klima in ?sterreich ver?ndern wird, wurde mit
dem Projekt „reclip:more“ (Research for Climate Protection: Model Run Evaluation) eine erste kleinr?umige Datenbasis für Klimaschutz
und Klimafolgenforschung für ?sterreich generiert. Klimaszenarien wurden mittels regionaler Klimamodelle (RCMs) für die Alpen
als 10 × 10-Kilometer-Raster und mit anschlie?endem Downscaling für ?sterreich mit einer Zielaufl?sung 1 km entwickelt. Die
RCMs wurden mit ERA-40 Reanalyse-Daten der Vergangenheit und Daten eines Zukunftsszenarios des globalen Klimamodells (GCM)
ECHAM5 angetrieben, um retrospektive (1981 bis 1990) und künftige (2041 bis 2050) Klimadatens?tze für die Alpen zu berechnen
und M?glichkeiten und Unsicherheiten der Modelle und Downscaling-Methoden für die Alpen zu evaluieren. Die nun vorliegenden
Datens?tze und weitere, die im Folgeprojekt „reclip:century“ für alternative Treibhausgasszenarien bis 2100 berechnet werden,
dienen dazu als Basis für Aussagen über ?kologische und sozio?konomische Entwicklungen im Hinblick auf den Klimawandel. 相似文献
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Mexico’s Central Highlands form one of Mesoamerica’s fundamental cultural seams, a point of overlap between two traditions,
one to the east and the other to the west. Although this area is usually included in the west, it can be more productively
viewed as an interface, the physical space where people, goods, and ideas passed from one side to the other, and thus it holds
many keys for our understanding of emerging social complexity in Mesoamerica. In reviewing the last two decades of Formative
period (1500 BC–AD 100) research in this crucial territory, we focus on themes that reveal the variation and dynamism of interregional
interaction, including the formation of regional traditions, exchange systems, and foreign “influence,” and others that help
contextualize the events and processes of that time, like household studies and environmental degradation. We stress that
this part of Mexico is undergoing relentless development so time is of the essence if we are to broaden our perspectives on
social evolution in the Central Highlands. This issue cannot be resolved by rescue and salvage work because it requires long-term,
interdisciplinary projects to unravel multifaceted problems. 相似文献
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Dominik?Paw?owskiEmail author Marek?Kloss Milena?Obremska Mateusz?Szymanowski S?awomir??urek 《Geochronometria》2012,39(2):133-148
This paper demonstrates the results of analyses of Cladocera, pollen, plant macrofossil, lithological and radiocarbon data
recovered from a mire located in the Rawka River valley in central Poland. These studies permit to recognise the development
of hydrology phases in Kopanicha mire and give insight into Holocene fluvial dynamics of the system; radiocarbon dating partly
allowed da-ting of the patterns of Holocene valley floor development of the Rawka River. The Kopanicha mire was formed during
the Atlantic period. At that time, an oxbow lake formed, becoming a mire during the Subboreal and possibly Subatlantic periods.
The high sensitivity of the oxbow lakes, fens, fauna, and flora remains to climate variations - especially to changes in water
level connected with the ag-gradation-erosion cycle of rivers - allows the reconstruction of the palaeoecological changes
that oc-curred in the mire. The frequency and timing of hydroclimatic oscillations at Kopanicha show strong similarities to
records from other sites in Poland. Changes in Cladocera frequency and plant assem-blages were mostly influenced by the Rawka
River which controlled the hydrological regime of the mire. The main factors controlling the presence of Cladocera taxa were
the water level and the pres-ence of favourable conditions in the mire (e.g. pH, vegetation). Most of the changes occurred
in re-sponse to climate changes, but some of them were connected with local factors. 相似文献
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Ji?í Svoboda Sandra SázelováPavel A. Kosintsev Vlasta JankovskáMartin Holub 《Journal of Anthropological Archaeology》2011,30(1):30-43
The aim of this paper is to present and discuss empirical evidence on the dynamics of occupation and site formation processes from contemporary mobile campsites in Northwest Siberia. The questions posed are derived generally from archaeological studies of Upper Paleolithic record in Europe. We document the active Nenets summer camps at lakes and the abandoned winter and spring camps in the open tundra and the forest tundra. Analysis of the floral and zoological resources shows that plant resources and fish are available predominantly in the summer while reindeer are abundant in these regions in fall and winter when they return from summer pastures further north. When natural resources are not available, groups supplement with food purchased at shops. Within these living camps, “structures évidentes” and “structures latentes” of classical French paleoethnology cannot be distinguished as clearly as at Upper Paleolithic sites: and architectural remains, ash from hearths, and other objects may be removed from the central areas towards the site peripheries. However the investigated camps preserve a discrete structure with interior living areas (including children’s playgrounds), exterior areas with evidence of reindeer carcass processing, woodworking, and other activities, peripheral toss zones, and dispersed activity remains in the surrounding landscape. 相似文献