Search results for " Platea"
showing 10 items of 51 documents
CHLORITE/SMECTITE - ALKALI FELDSPAR METASOMATIC XENOLITHS FROM HYBLEAN MIOCENIC DIATREMES (SICILY, ITALY): EVIDENCE FOR EARLY INTERACTION BETWEEN HYD…
2006
Upper-Miocene tuff-breccia pipes from the Hyblean area (south-eastern Sicily) bear a number of ultramafic and mafic xenoliths (spinel-peridotites, pyroxenites, gabbroic rocks) whose study has led to conclude that the Meso-Caenozoic carbonatic and volcanic succession stands upon a fossil oceanic core-complex, probably connected with the adjacent Ionian crust. Evidence for hydrothermal metasomatism is common in the Hyblean ultramafic and mafic xenoliths. In some cases, extreme metasomatic transformation and shearing have deleted original mineralogy and textures yielding unusual rocks, hereafter called “metasomatites”. These rocks generally exhibit cataclastic texture, their hydrothermal miner…
Biological nitrogen fixation for the 21st century
1998
The biodiversity of nitrogen-fixing organisms is huge. Taxonomic and phylogenetic research is needed to structure this diversity, to facilitate communication among scientists, and to increase our understanding of the evolution and biology of diazotrophs. Molecular tools for taxonomic and biodiversity studies of diazotrophic rhizobia, frankiae, cyanobacteria and bacilli are presented in sections 2 to 5. Sections 6 to 9 focus on problems with genus and species assignment.
La Meseta de Requena-Utiel entre los siglos II-I a.C.: La Romanización del territorio ibérico de Kelin
2013
En la presente Tesis Doctoral se aborda el tema general de la romanización de los pueblos ibéricos en la fachada mediterránea peninsular a partir del caso concreto del territorio de una ciudad ibérica, Kelin – Los Villares (Caudete de las Fuentes, València). Dicha ciudad, ocupada entre los siglos VII-I a.C., sabemos que al menos desde el s. V a.C. organizó un territorio a su alrededor, con unos límites muy similares a los de la actual comarca de Requena-Utiel. Ha sido excavada desde los años 90 desde el Servicio de Investigación Prehistórica de la Diputación de Valencia y la Universitat de València, siendo la directora de la presente tesis la directora de la última fase de excavación, Consu…
Monitoring Water and Energy Cycles at Climate Scale in the Third Pole Environment (CLIMATE-TPE)
2021
A better understanding of the water and energy cycles at climate scale in the Third Pole Environment is essential for assessing and understanding the causes of changes in the cryosphere and hydrosphere in relation to changes of plateau atmosphere in the Asian monsoon system and for predicting the possible changes in water resources in South and East Asia. This paper reports the following results: (1) A platform of in situ observation stations is briefly described for quantifying the interactions in hydrosphere-pedosphere-atmosphere-cryosphere-biosphere over the Tibetan Plateau. (2) A multiyear in situ L-Band microwave radiometry of land surface processes is used to develop a new microwave r…
Managerial career plateaue : determinants, consequences and coping strategies
2008
Masteroppgave i økonomi og administrasjon - Universitetet i Agder 2008 During last decade managers who were practicing in different industries in Sri Lanka, have struggled with having less promotional opportunities. This initially leads them to become plateaued with their career. This study applied the theory from career management literature to examine factors significantly influenced to employees’ perception of being subjectively plateaued and objectively plateaued. Additionally, this study aims to identify the relationship between career plateauing and its implication toward job satisfaction, organizational commitment, intention to quit and job induced stress. Further, coping strategies …
Preliminary results of fault-related permeability structures associated to the Scicli-Ragusa fault segments, Hyblean Plateau, Sicily
2010
Nella zona di Ragusa (Plateau Ibleo, Sicilia sud-orientale) la presenza di bitume all’interno di rocce carbonatiche di età oligo-miocenica, caratterizzate da una porosità primaria oggi compresa tra 0 e 10% (Formazione Ragusa, permette di osservare il ruolo esercitato da faglie e fratture nella circolazione degli idrocarburi. Con l’obiettivo quindi di effettuare studi mirati alla caratterizzazione petrofisica delle diverse tipologie di faglie e fratture affioranti, è stato condotto uno studio di terreno preliminare, che ha permesso la definizione dell’assetto geologico-strutturale della porzione occidentale del Plateau Ibleo, lungo il sistema di faglie denominato Scicli-Ragusa. Inoltre, sull…
Mesozoic tectono-sedimentary evolution of Rocca Busambra in western Sicily
2008
The Rocca Busambra ridge in western Sicily is a shallow to pelagic Meso-Cenozoic carbonate structural unit of the Sicilian fold and thrust belt with a variety of tectono-sedimentary features. Palaeofaults, unconformities (buttress unconformity, onlap, downlap), a network of neptunian dykes with several infilling generations, several large hiatuses, different facies and lateral facies changes, and erosional submarine and subaerial surfaces are observed. Detailed fieldwork and structural analyses have indicated the occurrence of fault planes with different orientations. These data, combined with facies studies and physical-stratigraphy analyses, allow for the distinction of different depositi…
The southern margin of the Caribbean Plate in Venezuela: tectono-magmatic setting of the ophiolitic units and kinematic evolution
2002
Abstract The southern Caribbean Plate margin in Venezuela consists of a W–E elongated deformed belt, composed of several tectonic units dismembered along the northern part of the South America continental Plate since the Late Cretaceous. The present review, based on petrology and tectono-magmatic significance of each unit, makes it possible to define the main geotectonic elements and to reconstruct the paleogeographic domains from Late Jurassic to Tertiary: (a) Mid-Ocean Ridge Basalt (MORB) proto-Caribbean oceanic basin (Loma de Hierro Unit); (b) oceanic plateau (Dutch and Venezuelan Islands basement); (c) rifted continental margin (Cordillera de La Costa and Caucagua–El Tinaco Units) with …
L'habitat néolithique récent de Geispolsheim "Forlen" (Bas-Rhin) : contribution à la périodisation de la culture de Munzingen et à l'étude de ses rel…
2011
The recent Neolithic site of Forlen in Geispolsheim, attributed to the recent Munzingen, has yielded a series of enclosures containing ceramic forms unprecedented in the context of Munzingen B. We have detected the influence of late productions by the Pfyn culture and propose the identification of a new stage in the recent Munzingen, which we have unoriginally named Munzingen C, and is typified by the appearance of ceramic forms with rounded profiles. This episode may date from around 3650-3550 BC, a late dating that has been confirmed by two carbon 14 tests. The discovery allows a strong claim to be made that ancient trading networks that linked the Rhine Valley with the Swiss Plateau and …
Salt exploitation, communication routes and territory during the Iron Age around the Cabriel river valley
2020
La sal era un recurso fundamental en la economía de las sociedades antiguas y cada vez tenemos más datos sobre su aprovechamiento y explotación durante la Edad del Hierro en ámbito peninsular. La comarca de Requena-Utiel, en el interior de la provincia de Valencia, presenta la mayor abundancia de salinas continentales históricas del territorio valenciano. Por otro lado, en La Manchuela conquense se localiza la importante mina de sal de Minglanilla-La Pesquera. El hallazgo de material arqueológico ibérico en algunas de estas explotaciones sirve como punto de partida para analizar sus características y ver cómo pudieron quedar integradas en el patrón de asentamiento, así como en una densa red…