Alluvial fans and megafans along the southern side of the Alps

Fontana, Alessandro; Mozzi, Paolo; Marchetti, Mauro

doi:10.1016/j.sedgeo.2013.09.003

Cited by 148 publications

(141 citation statements)

References 69 publications

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“…Dating of the timing of shutdown of sediment delivery to the distal outwash plain in the Friuli region at around 20.4 to 19.5 ka delineates the moment of withdrawal of the Tagliamento glacier from the LGM moraine complex (Fontana et al, 2014b). Along the southern forelands a similar timing for cessation of delivery of glaciofluvial sediments to megafans and the onset of incision into fan deposits is noted (Carton et al, 2009;Fontana et al, 2014a).…”

Section: The Moraine Indicated By the Upper Red Arrow Is At 950 M Amentioning

confidence: 87%

Glacier variations in the European Alps at the end of the last glaciation

Ivy‐Ochs¹

2015

CIG

163

118

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Section: The Moraine Indicated By the Upper Red Arrow Is At 950 M Amentioning

confidence: 87%

Glacier variations in the European Alps at the end of the last glaciation

Ivy‐Ochs¹

2015

CIG

163

118

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“…This project is primarily devoted to the implementation of a database concerning 350 historical maps of the Lagoon of Venice and its fringe Fozzati et al, 2012;Furlanetto & Primon, 2004;Furlanetto, Bondesan, Levorato, Rosselli, & Bertani, 2009;Furlanetto, Bondesan, Rosselli, Pacquola & Rasador, 2004;Meneghel & Bondesan, 2004;Fontana et al, 2010;Fontana et al, 2014;Francese et al, 2014). The ancient hydrographical and geomorphological context has been reconstructed using historical maps that were georeferenced and overlaid on available geomorphological maps and aerial photographs.…”

Section: Methodsmentioning

confidence: 99%

Geomorphological evolution of the plain between the Livenza and Piave Rivers in the sixteenth and seventeenth centuries inferred by historical maps analysis (Mainland of Venice, Northeastern Italy)

Furlanetto¹,

Bondesan

2014

Journal of Maps

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The ancient hydrographical network and geomorphological framework of the fluvial and coastal plain encompassed between the Livenza and Piave Rivers in the mainland of Venice (Northeastern Italy) were reconstructed, based on historical maps, georeferenced, and overlaid on available geomorphological maps and aerial photographs. A selection of 59 maps was accurately analyzed (32 from the sixteenth century, 31 from the seventeenth century, and 6 from the eighteenth century). They were selected by author, commitment, date, and scale, from among more than 1000 maps edited by Savi e Esecutori alle Acque (the 'hydrographical' service during the Republic of Venice) in the 16th and seventeenth century. The most representatives (7 from the sixteenth century and 6 from the seventeenth century) were georeferenced and redrawn. Finally, four 1:50.000 maps were created, picturing the ancient morphology and hydrographical network in the years 1550, 1600, 1650, and 1700, covering an area of about 130 square kilometers. Geographical information was compared with historical documents and geological, geomorphological, and geochronological data. Further comparison of geodetic maps from the eighteenth to the twenty-first century produced new maps with important information on the paleogeographical and environmental framework across two centuries, and particularly on the artificial diversion projects performed by the Venetian Republic, their effectiveness, and the geomorphological changes both related to human intervention and recent climatic changes.

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“…Recently, the compositional variations of the Po-plain deposits have been related to the LGM (Last Glacial Maximum) and post LGM evolution of alluvial megafans and fans (Fontana et al, 2014). The development of these fans is mainly related to 125 climatic variations.…”

Section: IIImentioning

confidence: 99%

“…During the LGM, the development of the sequences was controlled by changes in the sediment supply and water discharge ratio. Therefore, since the middle Pleistocene, the depositional system evolved through sedimentary pulses (glacial maxima) alternated with interglacial periods of stability, leading to regional discontinuities at the transition between phases (Fontana et al, 2014). Accordingly, several fan systems have been distinguished in the study area (Lambro megafan, Seveso fan, Olona megafan, Lura fan, and Molgora megafan, Fontana, 2014).…”

Section: IIImentioning

confidence: 99%

“…From an 485 hydrostratigraphic point of view, the produced 3D model includes: (i) a deep aquifer made up of a complex sequence of aquicludes and aquifer systems, consisting of interlayered sand and silt/clay layers; this embraces the Aquifer Group C as defined by Regione Lombardia and Eni (2002); (ii) an intermediate aquifer, related to the Aquifer Group B by Regione Lombardia and ENI (2002), consisting of an homogenous sandy-gravel aquifer body; (iii) an upper aquifer with a discontinuous impermeable basal aquitard, missing in the northermost portion of the study area, and corresponding to the Aquifer Group A 490 of Regione Lombardia and ENI (2002). This aquifer is subdivided into 11 subunits representing the different clastic facies of proximal and distal fringes of 5 alluvial fans (Fontana et al, 2014). In the northern sector, the elevation of aquifer limiting surfaces agrees with elevation of major sequence boundaries, which marks widespread progradation of PS2 and PS3 sequences (see 2.2), given by Regione Lombardia and ENI (2002).…”

Section: IIImentioning

confidence: 99%

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Hydrofacies reconstruction of glaciofluvial aquifers and groundwater flow modelling in a densely urbanized area under changing climatic conditions

Crosta

Frattini

et al. 2017

Preprint

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Abstract. Potential impacts of global climate changes on the groundwater are largely unknown, especially for densely populated areas where groundwater is heavily exploited for public and industrial supply. Hence, to better plan and manage the 10 groundwater resources, medium-long term numerical modelling of groundwater flow, which takes into account climate change, population growth, and industrial and agricultural activities, is needed. The objective of this paper is to tackle three main issues: (1) the development of a robust hydro-stratigraphic model of a multi-aquifer system from a well logs database by means of a novel multi-dimensional approach which includes a hierarchical classification of the lithologies, the interpretation of crosssections, and the interpolation of aquifer boundary surfaces; (2) the parametrization and calibration of both a steady state and 15 a transient groundwater flow model, starting from empirical relationships (for unconfined aquifer) and step-drawdown and well tests (for semi-confined and confined aquifers) to define equivalent homogenous sub-units; and (3)

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Alluvial fans and megafans along the southern side of the Alps

Cited by 148 publications

References 69 publications

Glacier variations in the European Alps at the end of the last glaciation

Glacier variations in the European Alps at the end of the last glaciation

Geomorphological evolution of the plain between the Livenza and Piave Rivers in the sixteenth and seventeenth centuries inferred by historical maps analysis (Mainland of Venice, Northeastern Italy)

Hydrofacies reconstruction of glaciofluvial aquifers and groundwater flow modelling in a densely urbanized area under changing climatic conditions

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