6 resultados para bronze age
em AMS Tesi di Dottorato - Alm@DL - Università di Bologna
Resumo:
This volume is a collection of the work done in a three years-lasting PhD, focused in the analysis of Central and Southern Adriatic marine sediments, deriving from the collection of a borehole and many cores, achieved thanks to the good seismic-stratigraphic knowledge of the study area. The work was made out within European projects EC-EURODELTA (coordinated by Fabio Trincardi, ISMAR-CNR), EC-EUROSTRATAFORM (coordinated by Phil P. E. Weaver, NOC, UK), and PROMESS1 (coordinated by Serge Bernè, IFREMER, France). The analysed sedimentary successions presented highly expanded stratigraphic intervals, particularly for the last 400 kyr, 60 kyr and 6 kyr BP. These three different time-intervals resulted in a tri-partition of the PhD thesis. The study consisted of the analysis of planktic and benthic foraminifers’ assemblages (more than 560 samples analysed), as well as in preparing the material for oxygen and carbon stable isotope analyses, and interpreting and discussing the obtained dataset. The chronologic framework of the last 400 kyr was achieved for borehole PRAD1-2 (within the work-package WP6 of PROMESS1 project), collected in 186.5 m water depth. The proposed chronology derives from a multi-disciplinary approach, consisting of the integration of numerous and independent proxies, some of which analysed by other specialists within the project. The final framework based on: micropaleontology (calcareous nannofossils and foraminifers’ bioevents), climatic cyclicity (foraminifers’ assemblages), geochemistry (oxygen stable isotope, made out on planktic and benthic records), paleomagnetism, radiometric ages (14C AMS), teprhochronology, identification of sapropel-equivalent levels (Se). It’s worth to note the good consistency between the oxygen stable isotope curve obtained for borehole PRAD1-2 and other deeper Mediterranean records. The studied proxies allowed the recognition of all the isotopic intervals from MIS10 to MIS1 in PRAD1-2 record, and the base of the borehole has been ascribed to the early MIS11. Glacial and interglacial intervals identified in the Central Adriatic record have been analysed in detail for the paleo-environmental reconstruction, as well. For instance, glacial stages MIS6, MIS8 and MIS10 present peculiar foraminifers’ assemblages, composed by benthic species typical of polar regions and no longer living in the Central Adriatic nowadays. Moreover, a deepening trend in the paleo-bathymetry during glacial intervals was observed, from MIS10 (inner-shelf environment) to MIS4 (mid-shelf environment).Ten sapropel-equivalent levels have been recognised in PRAD1-2 Central Adriatic record. They showed different planktic foraminifers’ assemblages, which allowed the first distinction of events occurred during warm-climate (Se5, Se7), cold-climate (Se4, Se6 and Se8) and temperate-intermediate-climate (Se1, Se3, Se9, Se’, Se10) conditions, consistently with literature. Cold-climate sapropel equivalents are characterised by the absence of an oligotrophic phase, whereas warm-temeprate-climate sapropel equivalents present both the oligotrophic and the eutrophic phases (except for Se1). Sea floor conditions vary, according to benthic foraminifers’ assemblages, from relatively well oxygenated (Se1, Se3), to dysoxic (Se9, Se’, Se10), to highly dysoxic (Se4, Se6, Se8) to events during which benthic foraminifers are absent (Se5, Se7). These two latter levels are also characterised by the lamination of the sediment, feature never observed in literature in such shallow records. The enhanced stratification of the water column during the events Se8, Se7, Se6, Se5, Se4, and the concurring strong dilution of shallow water, pointed out by the isotope record, lead to the hypothesis of a period of intense precipitation in the Central Adriatic region, possibly due to a northward shift of the African Monsoon. Finally, the expression of Central Adriatic PRAD1-2 Se5 equivalent was compared with the same event, as registered in other Eastern Mediterranean areas. The sequence of substantially the same planktic foraminifers’ bioevents has been consistently recognised, indicating a similar evolution of the water column all over the Eastern Mediterranean; yet, the synchronism of these events cannot be demonstrated. A high resolution analysis of late Holocene (last 6000 years BP) climate change was carried out for the Adriatic area, through the recognition of planktic and benthic foraminifers’ bioevents. In particular, peaks of planktic Globigerinoides sacculifer (four during the last 5500 years BP in the most expanded core) have been interpreted, based on the ecological requirements of this species, as warm-climate, arid intervals, correspondent to periods of relative climatic optimum, such as, for instance, the Medieval Warm Period, the Roman Age, the Late Bronze Age and the Copper Age. Consequently, the minima in the abundance of this biomarker could correspond to relatively cooler and more rainy periods. These conclusions are in good agreement with the isotopic and the pollen data. The Last Occurrence (LO) of G. sacculifer has been dated in this work at an average age of 550 years BP, and it is the best bioevent approximating the base of the Little Ice Age in the Adriatic. Recent literature reports the same bioevent in the Levantine Basin, showing a rather consistent age. Therefore, the LO of G. sacculifer has the potential to be extended to all the Eastern Mediterranean. Within the Little Ice Age, benthic foraminifer V. complanata shows two distinct peaks in the shallower Adriatic cores analysed, collected hundred kilometres apart, inside the mud belt environment. Based on the ecological requirements of this species, these two peaks have been interpreted as the more intense (cold and rainy) oscillations inside the LIA. The chronologic framework of the analysed cores is robust, being based on several range-finding 14C AMS ages, on estimates of the secular variation of the magnetic field, on geochemical estimates of the activity depth of 210Pb short-lived radionuclide (for the core-top ages), and is in good agreement with tephrochronologic, pollen and foraminiferal data. The intra-holocenic climate oscillations find out in the Adriatic have been compared with those pointed out in literature from other records of the Northern Hemisphere, and the chronologic constraint seems quite good. Finally, the sedimentary successions analysed allowed the review and the update of the foraminifers’ ecobiostratigraphy available from literature for the Adriatic region, thanks to the achievement of 16 ecobiozones for the last 60 kyr BP. Some bioevents are restricted to the Central Adriatic (for instance the LO of benthic Hyalinea balthica , approximating the MIS3/MIS2 boundary), others occur all over the Adriatic basin (for instance the LO of planktic Globorotalia inflata during MIS3, individuating Dansgaard-Oeschger cycle 8 (Denekamp)).
Resumo:
La presente ricerca prende in esame le dinamiche archeologiche e storiche della regione egiziana del Fayyum durante il Nuovo Regno (1552 – 1069 a.C.). L’elaborato è suddiviso in quattro parti: la prima analizza tutti i contesti archeologici che hanno restituito materiale databile al Bronzo Tardo, la seconda riguarda, invece, la catalogazione di tutti i documenti iscritti provenienti dalla regione e databili al medesimo periodo. La terza parte rappresenta la sintesi dei dati acquisiti nelle due precedenti sezioni e descrive il divenire storico regionale tra XVIII, XIX e XX dinastia, mentre la quarta parte, un’appendice prosopografica, chiude l’intero studio. I contesti archeologici fayyumici che hanno restituito materiale databile al Bronzo Tardo sono solamente sette: Gurob, el-Lahun, Haraga, Hawara, Medinet Madi, Shedet e Tebtynis. La distribuzione della documentazione tende a concentrarsi, dal punto di vista territoriale nell’area d’ingresso della regione, mentre dal punto di vista cronologico sono molto ben attestate la seconda metà dell’epoca thutmoside, l’età amarniana e la prima parte dell’epoca ramesside. Per quanto la documentazione regionale pertinente al Nuovo Regno sia estremamente rarefatta, soprattutto se paragonata a quella contestualizzabile cronologicamente ad altri periodi storici, un’attenta analisi delle testimonianze porta a collocare il Fayyum in una fitta trama di rapporti politici, economici e militari non solo con il resto del Paese ma anche con altre aree geografiche, esterne all’Egitto.
Resumo:
The study of the objects LaTène type found in middle-eastern alpine region (Trentino Alto Adige-Südtirol, Engadina, North Tirol, Voralberg and Villach basin) is aimed to a better comprehension of the complex net of relationships established among the Celts, settled both in the central Europe territories and, since the IV century b.C., in the Po Plain, and the local populations. The ancient authors, who called the inhabitants of this area Raeti, propose for this territory the usual pattern according to which, the population of a region was formed consequently to a migration or was caused by the hunting of pre-existing peoples. The archaeologists, in the last thirty years, recognized a cultural facies typical of the middle-eastern alpine territory during the second Iron Age, and defined that as Fritzens-Sanzeno culture (from the sites of Fritzens, Inn valley, and Sanzeno, Non Valley). The so-called Fritzens-Sanzeno culture spread out without breaks from the material culture of the final Bronze Age and the first Iron Age. This local substratum, characterized by a ceramic repertoire strongly standardized, by peculiar architectural solutions and by a particular typology of rural sacred places (Brandopferplätze), accepted, above all during the second Iron Age, the strong influences coming from the Etruscan world and from the Celtic one (evident in the presence of objects of ornament, of glass artefacts, of elements of the weaponry and of coins). The objects LaTène type become, with different degrees of reliability, important markers of the relationships existing between the Celts and the Raeti, although the ways of interaction (cultural influence, people's movements, commercial exchanges, gifts among élites etc.) is not still clear. The revision of published data and the study of unpublished materials allows to define a rich and articulated picture both to chronological level and to territorial one.
Resumo:
Il dibattito sullo sviluppo delle culture dell’età del Bronzo nel territorio dell’Emilia-Romagna sta portando una rinnovata attenzione sull’area romagnola. Le indagini si sono concentrate sull’area compresa tra il fiume Panaro e il Mare Adriatico, riconoscibile nell’odierna Romagna ed in parte della bassa pianura emiliana. Si trattava un territorio strategico, un vero e proprio crocevia socio-economico fra la cultura terramaricola e quelle centro italiche di Grotta Nuova. La presente ricerca di dottorato ha portato alla ricostruzione dei sistemi di gestione e di sfruttamento delle risorse animali in Emilia-Romagna durante l’Età del Bronzo, con particolare attenzione alla definizione della capacità portante ambientale dei diversi territori indagati e delle loro modalità di sfruttamento in relazione alla razionalizzazione della pratiche di allevamento. Sono state studiate in dettaglio le filiere di trasformazione dei prodotti animali primari e secondari definendo, quindi, i caratteri delle paleoeconomie locali nel processo di evoluzione della Romagna durante l’età del Bronzo. La ricerca si è basata sullo studio archeozoologico completo su 13 siti recentemente indagati, distribuiti nelle provincie di: Bologna, Ferrara, Ravenna, Forlì/Cesena e Rimini, e su una revisione completa delle evidenze archeozoologiche prodotte da studi pregressi. Le analisi non si sono limitate al riconoscimento delle specie, ma hanno teso all’individuazione ed alla valutazione di parametri complessi per ricostruire le strategie di abbattimento e le tecniche di sfruttamento e macellazione dei diversi gruppi animali. E’ stato possibile, quindi, valutare il peso ecologico di mandrie e greggi sul territorio e l’impatto economico ed ecologico di un allevamento sempre più sistematico e razionale, sia dal punto di vista dell’organizzazione territoriale degli insediamenti, sia per quanto riguarda le ripercussioni sulla gestione delle risorse agricole ed ambientali in generale.
Resumo:
Il presente elaborato si occupa della storia della cerealicoltura in un percorso diacronico dal Neolitico all’Età del Ferro. Sono presentate le analisi carpologiche di 14 siti archeologici dell’Italia settentrionale, esaminati secondo le più moderne tecniche di indagine archeobotanica.
Resumo:
Il seguente lavoro analizza lo sviluppo dell’occupazione territoriale dell’area collinare e montana del bolognese e della Romagna nell’età del Bronzo. Si sono censite le attestazioni archeologiche relative all’età del Bronzo nell’area di studio, per analizzare le tendenze insediative e le loro eventuali modificazioni nel corso del tempo, onde individuare le strategie alla base del scelta del luogo da insediare e le eventuali vie di percorrenza. Attraverso l’analisi tipologica del materiale rinvenuto nei vari contesti si è cercato di determinare le influenze culturali provenienti dal centro Italia o dalla zona terramaricola. Per raggiungere questo obbiettivo si sono analizzati i dati di archivio della Soprintendenza ai beni archeologici dell’Emilia Romagna e l’Archivio Renato Scarani, protagonista delle ricerche archeologiche in Emilia Romagna per il periodo degli anni ’50-’70 del XX secolo, recentemente acquisito dall’Università di Bologna. Ai dati desunti dagli archivi, che in molti casi hanno chiarito le vicende concernenti le indagini ed i posizionamenti di molti dei siti segnalati ed esplorati tra la seconda metà del XIX e gli anni ’70 del XX secolo, che costituiscono la maggioranza del campione analizzato, si sono aggiunti i dati recentemente acquisiti a seguito degli scavi a Monterenzio Località Chiesa Vecchia (Bo), uno dei siti più importanti (per stratigrafia conservata e per contesto territoriale) dell'Appennino Bolognese.