Stratigraphic architecture and quaternary evolution of the Val d'Agri intermontane basin (Southern Apennines, Italy)

Abstract.A PM 1 geochemical and mineralogical study using Scanning Electron Microscopy (SEM) was performed on a pilot site in the Agri Valley which is close to the oil pre-treatment plant (C.O.V.A) of Europe's largest on-shore hydrocarbon reservoir. The study identified PM 1 geochemical and mineralogical characters in the period before, during and immediately after a burning torch flare event. The finer fraction (D Fe < 0.7 µm) consisted mainly of secondary particles and soot. In the coarser fraction (D Fe ≥ 0.7 µm), natural particles originating from crustal erosion and soot were abundant. Fine quartz particles and lower Al / Si ratios are markers for desert dust origin, proving that a Saharan dust episode which occurred during the observation period played a significant role in supplying geogenic aerosol components to the PM 1 . Largest amounts of ≥ 0.7 µm fraction particles observed on the day of flare event may be due to a greater supply of Saharan geogenic particles. Soot had been significantly increasing long before the flare event, suggesting that this increase is also related to other causes, although we cannot exclude a contribution from flaring. S-rich aerosol consisted mainly of mixed particles originating from deposition and heterogeneous nucleation of secondary sulfates on mineral dust. Only-S particles were identified in the ≥ 0.7 µm fraction following the flare event. These particles may be indicators of larger amounts of sulphur in the atmosphere.

Section: Pilot Sitementioning

confidence: 99%

PM<sub>1</sub> geochemical and mineralogical characterization using SEM-EDX to identify particle origin – Agri Valley pilot area (Basilicata, southern Italy)

Margiotta

Lettino

Speranza

et al. 2015

“…The pre-Quaternary substratum of this area consists of Tertiary siliciclastic sediments of the Gorgoglione Flysch (GF) that crop out mainly in the northern sector of Montemurro. Downslope, the Gorgoglione Flysch is covered by Quaternary continental deposits (QD) related to both Vallone dell'Aspro and Torrente Casale Alloformations (Zembo et al, 2010).…”

Section: Geological Settingmentioning

confidence: 99%

Geological and geophysical characterization of the southeastern side of the High Agri Valley (southern Apennines, Italy)

Giocoli

Stabile

Adurno

et al. 2015

Abstract. In the frame of a national project funded by Eni S.p.A. and developed by three institutes of the National Research Council (the Institute of Methodologies for Environmental Analysis, the Institute of Research for Hydrogeological Protection and the Institute for Electromagnetic Sensing of the Environment), a multidisciplinary approach based on the integration of satellite, aero-photogrammetric and in situ geophysical techniques was applied to investigate an area located in the Montemurro territory in the southeastern sector of the High Agri Valley (Basilicata Region, southern Italy). This paper reports the results obtained by the joint analysis of in situ geophysical surveys, aerial photos interpretation, morphotectonic investigation, geological field survey and borehole data. The joint analysis of different data allowed us (1) to show the shallow geological and structural setting, (2) to detect the geometry of the different lithological units and their mechanical and dynamical properties, (3) to image a previously unmapped fault beneath suspected scarps/warps and (4) to characterize the geometry of an active landslide affecting the study area.

“…The area surrounding the village of Montemurro is located near the Agri Valley Pertusillo depocenter, where the sediments of the "Agri Valley allogroup" crop out, as described by Zembo (2010), who proposed a new allostratigraphic model for the basin's deposits. The Agri Valley allogroup, up to 100 m thick, consists of four unconformity-bounded units, representing distinct depositional intervals related to regional tectonic and environmental changes, overlaying the lower Pleistocene deposits of the Spinoso conglomerate formation (Zembo et al, 2009;Zembo, 2010).…”

Section: Geological Background From Previous Studiesmentioning

confidence: 99%

“…The Agri Valley allogroup, up to 100 m thick, consists of four unconformity-bounded units, representing distinct depositional intervals related to regional tectonic and environmental changes, overlaying the lower Pleistocene deposits of the Spinoso conglomerate formation (Zembo et al, 2009;Zembo, 2010). From bottom to top, the Agri Valley allogroup is composed of Pietra del Pertusillo alloformation, Valle del Nasillo alloformation, Vallone dell'Aspro alloformation and Torrente Casale alloformation.…”

Section: Geological Background From Previous Studiesmentioning

confidence: 99%

“…From bottom to top, the Agri Valley allogroup is composed of Pietra del Pertusillo alloformation, Valle del Nasillo alloformation, Vallone dell'Aspro alloformation and Torrente Casale alloformation. This sequence reflects a progradation of fan systems in a lacustrine-palustrine setting, followed by expansion of a new alluvial-fluvial system (Zembo, 2010). Carbone et al (2010) recognized a Pietra del Pertusillo supersynthem on an unconformity-bounded stratigraphic unit including the Brecce di Galaino and the Conglomerati di La Serra (sensu Salvador, 1987), corresponding to the Spinoso conglomerate formation of Zembo (2010).…”

Section: Geological Background From Previous Studiesmentioning

confidence: 99%

See 1 more Smart Citation

The Verdesca landslide in the Agri Valley (Basilicata, southern Italy): a new geological and geomorphological framework

Gueguen

Bentivenga

Colaiacovo

et al. 2015

Abstract.A landslide, to the west of Montemurro (a small village in southern Italy), has recently caused damage to buildings and other infrastructure in an urbanized area; as a result the development of new economic activities has been prohibited. The landslide phenomenon started in the last century and has been studied since the 1990s using classical geotechnical methods; however the sliding body continues to move. This paper presents the results of a study carried out using field surveys, geognostic investigations and TDR (time domain reflectometry) measurements in order to reconstruct the stratigraphy of the sediments involved and to further understand the geological and geomorphological context of the slope. This study is part of a larger multidisciplinary project, the results of which will also be presented in this paper. The landslide (rotational slide in the upper sector, developing into a translational slide in the lower part) affects Quaternary continental clastic deposits resting on a bedrock formed by Tertiary siliciclastic sediments of the Gorgoglione Flysch. TDR measurements did not show any significant movement during the period monitored (January 2013-January 2014). Slip zone geometries were hypothesized using inclinometric measurements taken from previous studies, stratigraphic data and geomorphological interpretations of topographic scarps. Feedback from monitoring will confirm this hypothesis.