The influence of physico-chemical material properties on erosion processes in the badlands of Basilicata, Southern Italy

Geomorphology ◽  
2006 ◽  
Vol 81 (3-4) ◽  
pp. 235-251 ◽  
Author(s):  
Marco Piccarreta ◽  
Hazel Faulkner ◽  
Mario Bentivenga ◽  
Domenico Capolongo
Bioprinting ◽  
2021 ◽  
pp. e00183
Author(s):  
Filippo Valente ◽  
Matt S. Hepburn ◽  
Jingyu Chen ◽  
Ana A. Aldana ◽  
Benjamin J. Allardyce ◽  
...  

Biofouling ◽  
2012 ◽  
Vol 28 (3) ◽  
pp. 315-327 ◽  
Author(s):  
Dominik Montag ◽  
Marion Frant ◽  
Harald Horn ◽  
Klaus Liefeith

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Consuele Morrone ◽  
Fabio Ietto

AbstractThis contribution focuses on a multidisciplinary research showing the geomorphological evolution and the beach sand composition of the Tyrrhenian shoreline between Capo Suvero promontory and Gizzeria Lido village (Calabria, southern Italy). The aim of the geomorphological analysis was to reconstruct the evolutionary shoreline stages and the present-day sedimentary dynamics along approximately 6 km of coastline. The results show a general trend of beach nourishment during the period 1870–2019. In this period, the maximum shoreline accretion value was estimated equal to + 900 m with an average rate of + 6.5 m/yr. Moreover, although the general evolutionary trend is characterized by a remarkable accretion, the geomorphological analysis highlighted continuous modifications of the beaches including erosion processes. The continuous beach modifications occurred mainly between 1953 and 1983 and were caused mainly by human activity in the coastal areas and inside the hydrographic basins. The beach sand composition allowed an assessment of the mainland petrological sedimentary province and its dispersal pattern of the present coastal dynamics. Petrographic analysis of beach sands identified a lithic metamorphi-clastic petrofacies, characterized by abundant fine-grained schists and phyllites sourced from the crystalline terrains of the Coastal Range front and carried by the Savuto River. The sand is also composed of a mineral assemblage comparable to that of the Amato River provenance. In terms of framework detrital constituents of QFL (quartz:feldspars:aphanitic lithic fragments) and of essential extraclasts, such as granitoid:sedimentary:metamorphic phaneritic rock fragments (Rg:Rs:Rm), sand maturity changes moderately from backshore to shoreface, suggesting that transport processes had a little effect on sand maturity. Moreover, the modal composition suggests that the Capo Suvero promontory does not obstruct longshore sand transport from the north. Indeed, sands displaced by currents driven by storm-wave activity bypass this rocky headland.


Author(s):  
Gintaras JARAŠIŪNAS ◽  
Irena KINDERIENĖ

The objective of this study was to evaluate the impact of different land use systems on soil erosion rates, surface evolution processes and physico-chemical properties on a moraine hilly topography in Lithuania. The soil of the experimental site is Bathihypogleyi – Eutric Albeluvisols (abe–gld–w) whose texture is a sandy loam. After a 27-year use of different land conservation systems, three critical slope segments (slightly eroded, active erosion and accumulation) were formed. Soil physical properties of the soil texture and particle sizes distribution were examined. Chemical properties analysed for were soil ph, available phosphorus (P) and potassium (K), soil organic carbon (SOC) and total nitrogen (N). We estimated the variation in thickness of the soil Ap horizon and soil physico-chemical properties prone to a sustained erosion process. During the study period (2010–2012) water erosion occurred under the grain– grass and grass–grain crop rotations, at rates of 1.38 and 0.11 m3 ha–1 yr–1, respectively. Soil exhumed due to erosion from elevated positions accumulated in the slope bottom. As a result, topographic transfiguration of hills and changes in soil properties occurred. However, the accumulation segments of slopes had significantly higher silt/clay ratios and SOC content. In the active erosion segments a lighter soil texture and lower soil ph were recorded. Only long-term grassland completely stopped soil erosion effects; therefore geomorphologic change and degradation of hills was estimated there as minimal.


1985 ◽  
Vol 12 (5) ◽  
pp. 407-418 ◽  
Author(s):  
D. Beruto ◽  
M. Giordani ◽  
R. Turriziani

2013 ◽  
Vol 54 (5) ◽  
pp. 951-984 ◽  
Author(s):  
Roberto Moretti ◽  
Ilenia Arienzo ◽  
Giovanni Orsi ◽  
Lucia Civetta ◽  
Massimo D’Antonio

2010 ◽  
Vol 126-128 ◽  
pp. 3-8 ◽  
Author(s):  
Yasser M. Ali ◽  
Philip Mathew ◽  
Jun Wang

Most existing models for abrasive jet machining (AJM) are based on erosion models for either ductile or brittle materials. This classification imposes some limitations, because most materials are neither absolutely ductile nor absolutely brittle, but lay within the continuous spectrum between those two idealizations. This work reports recent progress in the modeling of erosion processes for real materials, and discusses the implications of a new model in estimating the performance of AJM. The new model is more capable in explaining the effects of jet velocity, abrasive particle size, and various material properties on the efficiency of the cutting process.


Sign in / Sign up

Export Citation Format

Share Document