1,720,984 research outputs found
Calabrian Arc oroclinal bending: The role of subduction
Paleomagnetic data collected in the last 30 years
indicate that a simple orocline model is not sufficient
to describe the complex evolution of the Calabrian
Arc. Present-day curvature of the Calabrian Arc is the
result of a different tectonic history between the edges
of the arc, namely the Southern Apennines and Sicily,
and its core, the Calabria-Peloritani Domain. These
differences mirror the structural architecture and deep
lithospheric configuration of the Calabrian Arc, which
are related to the geometry and evolution of the Ionian
subduction system. In particular, the presence of lateral
heterogeneities in the subducting lithosphere and the
subsequent progressive decrease in width of the trench
during subduction are likely the main causes of
Calabrian Arc formation and of its present-day narrow
tight shap
Late Quaternary geomorphological evolution of the Adriatic coast reach encompassing the Metauro, Cesano and Misa river mouths (Northern Marche, Italy).
This work has been carried out to gain deeper insights on the late Quaternary geomorphic evolution of the Adriatic costal area encompassing the Metauro, Cesano and Misa river mouths, in the outer sector of the northern Marche Apennines. In addition to detailed geomorphological survey, drilling logs and data from new and previously reported radiocarbon datings, a geostatistical processing of fluvial and marine terrace topography
was attempted, which is finalized to reconstruct the original geometry of depositional top-surfaces.
The Metauro, Cesano and Misa rivers in their most distal sectors flow orthogonally to the coastline and
display wide and flared fluvial plains in the proximity of their mouths. At least four fluvial terrace levels, likely referred to Middle Pleistocene-Holocene glacial-interglacial cycles have been recognized throughout the study
area. Fluvial plains generally merged into narrow relict coastal plains interconnecting the river mouths, and coastal fans affected by wave-cut scarps are the main geomorphic features of the coastal area.
Close to the river mouths the bulk of geomorphic and geometric/stratigraphic features were consistent for identifying, for the first time, some typical coastal fans with well preserved Holocene wave cut scarps. Further, data indicate that the local convex-up morphology and the geometric assessment of the topography depend upon
the fan location rather than tectonics. Finally, by coupling geomorphologic and stratigraphic data with the results of geostatistical analysis, it has been possible to constrain the location of shoreline and sea level during the last
Interglacial. Basing on that, it has been calculated that the coastal area underwent a mean uplift rate of at least
0.15 mm yr-1, in fair agreement with previous estimations concerning the northern Marche coastal zone
River terraces in the Fiume Tronto drainage basin, Marche Region: a contribution to morphotectonic investigations
The aim of this work is to provide a methodological input based on geostatistical topographic analyses for the detection of morphological
anomalies induced by neotectonic activity on fluvial terrace surfaces.
The study area corresponds to the distal portion of the Fiume Tronto drainage basin (Southern Marche region of Central Italy); the basin developed on Plio-Pleistocene marine terrigenous deposits and its arrangement was strongly influenced by Quaternary uplift and regional WSW-ENE and E-W trending fault zones.
Detailed surveys allowed to verify the location of surfaces, at several levels; they are the remnants of Quaternary fluvial terraces, formed in response to both climatic oscillations and regional uplift. Several points at the top of the surfaces were sampled by GPS and then geostatistically processed (Kriging method) to provide an unbiased interpretation of the chronological sequence of terraces.
The geometrical setting of the terraces seems strongly influenced by the regional uplift and by the activity of the Tronto major fault. Results of geostatistical analysis, compared to the DTM indicated that minor Quaternary faults dislocated the terraces. This is in agreement with the outcomes of previous works, thus confirming the usefulness of this methodological approach in rhe study of fluvial terraces as neotectonic indicators
Quantitative assessment of the Quaternary fluvial and marine terraces geometries in the northern Adriatic coast of Marche Region (Italy).
Calibration of techniques for stream long-profiles metrics to detect active geomorphic and tectonic processes: examples from the Adriatic side of central-northern Apennines (Italy)
Geostatistical topographic analysis of fluvial terraces in morphoneotectonic investigations: the Fiume Tronto case study (central Italy)
Recent evolution of the Northern Marche coastal area from Metauro to the Misa River mouths (Marche Apennines, central Italy).
Italy
The two branches of toxicology in Italy, forensic and industrial, developed in parallel, and in 1910 the first Department of Occupational Medicine was opened at the University of Milan by Prof. Luigi Devoto (1864-1936), one of the most highly respected figures in this field. This was followed in 1917 by the creation, at the Pharmacology Institute of the University of Florence, of a Division of Toxicology, which was later directed by the famous pharmaco-toxicologist Mario Aiazzi Mancini (1887-1980). In the present the history of toxicology in Italy is well represented by the activity of the Italian Society of Toxicology. The Italian Society of Toxicology (SITOX, formerly SIT) was founded in Pavia on October 20, 1967. The founding members were Prof. Pietro Mascherpa, Director of the Institute of Pharmacology of the University of Pavia School of Medicine, and Professors Gianmartino Benzi and Francantonio Bertè. The President of the Republic officially recognized the Society on May 16, 1972. It is actively engaged in promoting the value of scientific, professional and regulatory aspects of modern toxicology
- …
