Search results for "GeoA"
showing 10 items of 32 documents
Paleoecological insight into the straight-tusked elephant population from the late Middle Pleistocene site of Poggetti Vecchi
Il progetto di ricerca s’incentra sullo studio della macrofauna rinvenuta nel sito paleontologico e archeologico di Poggetti Vecchi, scoperto nella località di Roselle situata in provincia di Grosseto. Nello specifico esso è stato focalizzato sulla ricostruzione paleoambientale e paleoecologica dell’area. L’analisi paleobiologica e tafonomica dei resti faunistici è stata perciò inserita all’interno di un progetto multidisciplinare e l’integrazione di tutti i dati paleontologici (relativi a vertebrati, invertebrati, macroresti vegetali e pollini) con quelli stratigrafici ha permesso di ricostruire dettagliatamente l’evoluzione paleoambientale. Nella seconda parte, lo studio paleoecologico è …
Effect of peracetic acid on levels of geosmin, 2-methylisoborneol, and their potential producers in a recirculating aquaculture system for rearing ra…
2019
In recirculating aquaculture systems (RAS)s, off-flavors and odors, mainly caused by geosmin (GSM) and 2-methylisoborneol (MIB), can accumulate in the flesh of fish from RAS water, reducing the profitability of production. In this study, peracetic acid (PAA) was applied in three application intervals to pump sumps of rainbow trout (Oncorhynchus mykiss) reared in RAS. Using a real-time polymerase chain reaction (qPCR), the potential off-flavor producers were quantified using geoA and MIB synthase genes. Streptomyces was identified as the major GSM producer, and biofilters showed the highest number of potential off-flavor producers. Concentrations of GSM and MIB were analyzed in the circulati…
ÉTUDE GÉOARCHÉOLOGIQUE D'UN LIEU DE CULTE ROMAIN IMPLANTÉ SUR UNE SOURCE THERMALE : LE SANCTUAIRE DE JEBEL OUST, TUNISIE
2015
The ancient site of Jebel Oust (Tunisia) grew up around a hot spring, which was a focus for worship at the start of the first millennium AD, until it dried up in Late Antiquity. A geoarchaeological study of the hydrological functioning of the spring, catchment mechanisms for hot water and associated anthropic infrastructure makes it possible to trace the environmental history of the sanctuary/hot spring complex and draws on the example of Jebel Oust to provide new evidence supporting the identification of a water cult in the Roman era.
Millstones as indicators of relative sea-level changes in northern Sicily and southern Calabria coastlines, Italy
2011
Abstract New data are presented for late Holocene relative sea-level changes in two coastal sites of Sicily and Calabria, southern Italy. Reconstructions are based on precise measurements of submerged archaeological remains that are valuable indicators of past sea-level position. The archaeological remains are millstone quarries carved on sandstone coastal rocks and nowadays partially submerged which, to the authors’ knowledge, are used for the first time as sea-level markers. Millstones of similar typology are located on the coast of Capo d’Orlando (northern Sicily) and Capo dell’Armi (southern Calabria). When the archeologically-based sea-level position is compared with the shoreline elev…
Construire dans les campagnes bourguignonnes au XVIe siècle : approche géo-archéologique des savoirs et savoir-faire des maçons dans la seigneurie de…
2012
Le hameau des Bordes des Bois de Cestres constitue sans doute l'ultime centre d'exploitation agro-pastoral fondé sur les terres de l'abbaye bénédictine de Saint-Seine avant le début des crises. Il est assurément conçu pour durer mais, isolé au milieu des bois, il ne résiste pas à la dépression démographique et à l'insécurité résultant des épidémies de peste et des épisodes de la Guerre de Cent-ans: il est déserté au début du XVe siècle. Les fouilles archéologiques qui y ont été menées entre 2003 et 2012 ont été aussi exhaustives que possible: elles ont mis au jour les bâtiments d'habitation comme les granges, les ateliers et les bergeries des exploitations, les aménagements collectifs de la…
Mitigazione del Rischio Idrogeologico nel complesso rupestre di C. da Chiafura (Scicli, Sicilia Sud-orientale): esempio di studio geomeccanico intreg…
2009
Geoarchaeology as a tool to understand ancient navigation in the northern Persian Gulf and the harbour history of Siraf
2020
International audience; Historical texts and archaeological studies attest to the maritime and trade importance of the Persian Gulf since the Sassanid Empires. Nonetheless, there is a paucity of data regarding ancient navigation and the reasons for a shift in m aritim e trade from the western (e.g. Shatt-al-Arab) to eastern (Siraf) Persian Gulf by the Abbasid dynasty. For som e scholars, Siraf was occupied between 360 and 977 CE, after which tim e an earthquake en-trained the dem ise of the city. However, it is unclear when Siraf was founded and how natural navigation conditions changed for ocean-going vessels in harbours of the NW Persian Gulf. To address this knowledge gap, we here presen…
Human occupation and environmental change in the western Maghreb during the Last Glacial Maximum (LGM) and the Late Glacial. New evidence from the Ib…
2019
With the onset of the Last Glacial Maximum (LGM), hunter-gatherers of the so-called Iberomaurusian techno-complex appeared in what is now the Mediterranean Maghreb. During a period of about seven thousand years, these groups left sandy occupation layers in a limited number of archaeological sites, while at the beginning of Greenland Interstadial (GI) 1, the sudden shift towards the deposition of shell-rich sediments and the increase in number of sites document clear changes in subsistence strategies as well as occupation density. It is highly likely that these shifts in human behaviour are related to paleoenvironmental changes in the area, which, so far, are poorly documented in geological …
Mestieri e lavoro nei soprannomi siciliani. Un saggio di geoantroponomastica
2009
Geoarchaeological evidence for the abandonment of the Roman baths at Thermae Himerae
2020
Fondata alla fine del V sec. a.C. dai Cartaginesi, Thermae Himeraeae divenne colonia romana alla fine del I sec. a.C. e fu dotata degli edifici tipici di una città romana: foro, anfiteatro, acquedotto e bagni. Questi ultimi furono costruiti ai piedi della collina su cui sorge la città, sfruttando due sorgenti termali. Note fin dal XVI secolo, le terme furono studiate da Houel e Palmeri, ma solo nel 1817 il Gargotta condusse uno scavo nella piazza antistante, affermando che l’area centrale dell’edificio antico era occupata da una vasca circolare di ampie dimensioni. Solo alla fine del XIX secolo, durante la costruzione del nuovo Grand Hotel delle Terme, venne messa in luce la maggior parte d…