Paleo-Drainage Network, Morphotectonics, and Fluvial Terraces: Clues from the Verde Stream in the Middle Sangro River (Central Italy)

This work analyzes the role of paleo-drainage network, morphotectonics, and surface processes in landscape evolution in a sector of the transition zone between the chain and the piedmont area of Central Apennines. Particularly, it focuses on the Verde Stream, a tributary of the middle Sangro River valley, which flows in the southeastern Abruzzo area at the boundary with the Molise region. The Verde Stream was investigated through a drainage basin scale geomorphological analysis incorporating the morphometry of the orography and hydrography, structural geomorphological field mapping, and the investigation of morphological field evidence of tectonics with their statistical azimuthal distributions. The local data obtained were compared with the analysis of the middle Sangro River valley and the tectonic features of the Abruzzo–Molise area. This approach led us to also provide relevant clues about the definition of the role of karst features and paleo-landscapes in the general setting of the study area and to identify the impact of active tectonics, confirmed by recent and active seismicity. In conclusion, the paper contributes to defining the main stages of the geomorphological evolution of this area, driven by uplift and local tectonics and due to a combination of fluvial, karst, and landslide processes.

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Morphoneotectonics of the Abruzzo Periadriatic Area (Central Italy): Morphometric Analysis and Morphological Evidence of Tectonics Features

Geosciences ◽

10.3390/geosciences11090397 ◽

2021 ◽

Vol 11 (9) ◽

pp. 397

Author(s):

Enrico Miccadei ◽

Cristiano Carabella ◽

Giorgio Paglia

Keyword(s):

Morphometric Analysis ◽

Landscape Evolution ◽

Central Italy ◽

Morphological Evidence ◽

Integrated Analysis ◽

Tectonic Deformation ◽

Ongoing Activity ◽

Fluvial Terraces ◽

Basin Scale ◽

The Impact

Drainage basin-scale morphometric analysis and morphological evidence of tectonics represent helpful tools to evaluate and investigate morphoneotectonic processes in tectonically active regions. In this perspective, we applied an integrated analysis to the Abruzzo Periadriatic Area, between the Tronto and Sinello rivers (Central Italy). It involved morphometric analysis, structural geomorphological field mapping, and detailed analysis of fluvial terraces. Geomorphic indexes and markers (e.g., Irta, SL index, ksn, and knickpoints) were used in this study to detect the response of landscapes to drainage systems’ unsteadiness and tectonic deformation processes, possibly induced by the ongoing activity of the buried tectonic structures. Furthermore, the investigation of morphological field evidence of tectonics, integrated with the analysis of fluvial terraces’ spatial and temporal arrangement, was performed to assign relative, geomorphologically-based, age constraints of the landscape evolution. The resulting data allowed us to define domains affected by different morphostructural and morphoneotectonic processes, related to the impact and ongoing activity of the five detected families of structural elements (S1, F1, F2, F3, and F4), mainly characterized by compressive, extensional, and transtensive kinematics. Finally, this study could represent a scientific basis for integrating morphometric, fluvial, and tectonic geomorphology analysis to better define the main phases of the landscape evolution and the impact of morphoneotectonic processes on fluvial environments in uplifting piedmont areas.

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Climate, tectonics or morphology: what signals can we see in drainage basin sediment yields?

Earth Surface Dynamics ◽

10.5194/esurf-1-13-2013 ◽

2013 ◽

Vol 1 (1) ◽

pp. 13-27 ◽

Cited By ~ 26

Author(s):

T. J. Coulthard ◽

M. J. Van de Wiel

Keyword(s):

Sediment Yield ◽

Drainage Basin ◽

Sediment Yields ◽

Internal Storage ◽

Storage Effects ◽

Climatic Drivers ◽

Basin Morphology ◽

The Impact ◽

Small Basin

Abstract. Sediment yields from river basins are typically considered to be controlled by tectonic and climatic drivers. However, climate and tectonics can operate simultaneously and the impact of autogenic processes scrambling or shredding these inputs can make it hard to unpick the role of these drivers from the sedimentary record. Thus an understanding of the relative dominance of climate, tectonics or other processes in the output of sediment from a basin is vital. Here, we use a numerical landscape evolution model (CAESAR) to specifically examine the relative impact of climate change, tectonic uplift (instantaneous and gradual) and basin morphology on sediment yield. Unexpectedly, this shows how the sediment signal from significant rates of uplift (10 m instant or 25 mm a−1) may be lost due to internal storage effects within even a small basin. However, the signal from modest increases in rainfall magnitude (10–20%) can be seen in increases in sediment yield. In addition, in larger basins, tectonic inputs can be significantly diluted by regular delivery from non-uplifted parts of the basin.

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The role of impacts on Archaean tectonics

Geology ◽

10.1130/g46533.1 ◽

2019 ◽

Vol 48 (2) ◽

pp. 174-178 ◽

Cited By ~ 9

Author(s):

C. O’Neill ◽

S. Marchi ◽

W. Bottke ◽

R. Fu

Keyword(s):

System Response ◽

Lithospheric Thickness ◽

Tectonic Processes ◽

Field Evidence ◽

Impact Flux ◽

Impact Indicators ◽

Tectonic System ◽

The Impact ◽

Pilbara Craton

Abstract Field evidence from the Pilbara craton (Australia) and Kaapvaal craton (South Africa) indicate that modern tectonic processes may have been operating at ca. 3.2 Ga, a time also associated with a high density of preserved Archaean impact indicators. Recent work has suggested a causative association between large impacts and tectonic processes for the Hadean. However, impact flux estimates and spherule bed characteristics suggest impactor diameters of <100 km at ca. 3.5 Ga, and it is unclear whether such impacts could perturb the global tectonic system. In this work, we develop numerical simulations of global tectonism with impacting effects, and simulate the evolution of these models throughout the Archaean for given impact fluxes. We demonstrate that moderate-size (∼70 km diameter) impactors are capable of initiating short-lived subduction, and that the system response is sensitive to impactor size, proximity to other impacts, and also lithospheric thickness gradients. Large lithospheric thickness gradients may have first appeared at ca. 3.5–3.2 Ga as cratonic roots, and we postulate an association between Earth’s thermal maturation, cratonic root stability, and the onset of widespread sporadic tectonism driven by the impact flux at this time.

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Geomorphology-Based Analysis of Flood Critical Areas in Small Hilly Catchments for Civil Protection Purposes and Early Warning Systems: The Case of the Feltrino Stream and the Lanciano Urban Area (Abruzzo, Central Italy)

Water ◽

10.3390/w12082228 ◽

2020 ◽

Vol 12 (8) ◽

pp. 2228

Author(s):

Tommaso Piacentini ◽

Cristiano Carabella ◽

Fausto Boccabella ◽

Silvia Ferrante ◽

Carlo Gregori ◽

...

Keyword(s):

Urban Area ◽

Early Warning ◽

Drainage Basin ◽

Central Italy ◽

Warning System ◽

Early Warning Systems ◽

Urban Stream ◽

Civil Protection ◽

Critical Areas ◽

Basin Scale

This work is based on a drainage basin-scale geomorphological investigation combined with flood modeling. It is focused on the assessment of flood critical areas for the implementation of a geomorphology-based urban Early Warning System (EWS) in the urban area of Lanciano and the Feltrino Stream basin (a minor coastal basin of the Abruzzo hills, Central Italy). This area was investigated by combining: pre-existing geological, geomorphological, and hazard data and new detailed field surveys and mapping of geomorphological and hydrographical features (superficial and buried natural and urban stream network). The study was integrated with 2D flood numerical modeling for verifying the expected flooded areas and calibrating the critical areas. All the collected data were integrated into a geodatabase, and an expert-based approach through a geomorphology-based matrix allowed us to define the main categories of flood critical areas. The assessment of the critical areas supported the emplacement of a network of rainfall, temperature, and flood gauges. The geodatabase, the derived critical areas, and the gauge network contributed to set up an urban EWS, integrated with the regional forecast-based warning system. This system provides combined forecast-based, rainfall threshold-based, and flood monitoring-based alerts for floods. It incorporates communication tools for civil protection management. Finally, the EWS provides a tool for civil protection purposes and for the management of flood critical areas and the mitigation of the related risks by local authorities and will be integrated with sensors related to other hazards (i.e., landslides, wind, etc.).

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Organizational tenure and knowledge-sharing behaviours

Journal of Workplace Learning ◽

10.1108/jwl-03-2017-0027 ◽

2018 ◽

Vol 30 (4) ◽

pp. 291-307 ◽

Cited By ~ 5

Author(s):

Daria Sarti

Keyword(s):

Knowledge Sharing ◽

Social Exchange ◽

Critical Role ◽

Central Italy ◽

Negative Relationship ◽

Content Type ◽

Managerial Implications ◽

Organizational Tenure ◽

The Impact

Purpose This paper aims to contribute to research on the broad theme of knowledge-sharing (KS) behaviours and the impact that different organizational tenure may have on them. In this relationship, the relevance of the leader in enhancing sharing dynamics among employees is highlighted. Design/methodology/approach This study focuses on KS attitudes among employees with different numbers of years spent in the same organization, seen through the theoretical lens of a social exchange perspective. Specifically, the role of the leader in building a social exchange with co-workers is investigated as a managerial lever able to favour KS among a more experienced workforce. This paper starts by considering the relationship between organizational tenure and employees’ KS attitude. Furthermore, the specific role played by the leader–member social exchange with regard to this relation is described. The study’s hypotheses are tested on data collected from employees (N = 150) working in a non-profit organization located in central Italy. Findings The results suggest that a negative relationship exists between employees’ organizational tenure and KS attitude. In addition, the critical role of a leader’s support is demonstrated in moderating the effect of different organizational tenures on the KS attitude. Research limitations/implications This paper has both theoretical and managerial implications. Originality/value This paper contributes to the research on the important role of leaders in enhancing KS behaviors among co-workers when the number of years in the same organizations is a variable of interest.

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Climate, tectonics or morphology: what signals can we see in drainage basin sediment yields?

Earth Surface Dynamics Discussions ◽

10.5194/esurfd-1-67-2013 ◽

2013 ◽

Vol 1 (1) ◽

pp. 67-91 ◽

Cited By ~ 7

Author(s):

T. J. Coulthard ◽

M. J. Van de Wiel

Keyword(s):

Sediment Yield ◽

Drainage Basin ◽

Sediment Yields ◽

Internal Storage ◽

Storage Effects ◽

Climatic Drivers ◽

Basin Morphology ◽

The Impact ◽

Small Basin

Abstract. Sediment yields from river basins are typically considered to be controlled by tectonic and climatic drivers. However, climate and tectonics can operate simultaneously and the impact of autogenic processes scrambling or shredding these inputs can make it hard to unpick the role of these drivers from the sedimentary record. Thus an understanding of the relative dominance of climate, tectonics or other processes in the output of sediment from a basin is vital. Here, we use a numerical landscape evolution model (CAESAR) to specifically examine the relative impact of climate change, tectonic uplift (instantaneous and gradual) and basin morphology on sediment yield. Unexpectedly, this shows how the sediment signal from significant rates of uplift (10 m instant or 25 mm a−1) is lost due to internal storage effects within even a small basin. However, the signal from modest increases in rainfall magnitude (10–20%) can be seen in increases in sediment yield. In addition, in larger basins, tectonic inputs can be significantly diluted by regular delivery from non-uplifted parts of the basin.

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Globalisation vs the state? Macro- and micro-perspectives on Roman economies

Antiquity ◽

10.15184/aqy.2018.236 ◽

2018 ◽

Vol 92 (366) ◽

pp. 1674-1676

Author(s):

Martin Pitts

Keyword(s):

Roman Empire ◽

Rural Communities ◽

Market Integration ◽

Central Italy ◽

The State ◽

Long Distance ◽

Free Markets ◽

Roman Italy ◽

The Impact

There can be few topics in Roman archaeology and history that are contested with such vigour and widespread interest as the Roman economy. In part, this present situation arises as a legacy of older debates on the significance of ancient economic growth and long-distance trade, in which key twentieth-century figures such as M.I. Finley, M. Rostovtzeff and K. Hopkins continue to loom large and provide compelling insights. More recently, the debate has been re-cast around questions of state involvement vs free markets, and the extent of market integration, as this pair of edited collections demonstrates. On the one hand, Trade, commerce and the state in the Roman World (edited by Andrew Wilson and Alan Bowman, hereafter TCS) takes a big picture view on the role of the Roman state in long-distance trade, arising from a conference that took place in 2009 as part of the UK Arts and Humanities Research Council-funded project, ‘The Economy of the Roman Empire: Integration, Growth and Decline’. In contrast, The economic integration of Roman Italy (edited by Tymon de Haas and Gijs Tol, hereafter EIRI) brings together a series of typically smaller-scale studies focused on understanding the impact of economic changes on rural communities in Roman Italy. It emerges from another conference, held in 2013, this time as part of the Netherlands Organization for Scientific Research project ‘Fora, Stations, and Sanctuaries: the Role of Minor Centres in the Economy of Roman Central Italy’.

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Andean uplift, drainage basin formation, and the evolution of riverweeds (Marathrum, Podostemaceae) in northern South America

10.1101/2020.11.13.382200 ◽

2020 ◽

Author(s):

Ana M. Bedoya ◽

Adam D. Leaché ◽

Richard G. Olmstead

Keyword(s):

South America ◽

Landscape Change ◽

Drainage Basin ◽

Parental Line ◽

List Type ◽

Basin Formation ◽

Northern South America ◽

The Impact ◽

River Drainages

SummaryNorthern South America is a geologically dynamic and species-rich region. While fossil and stratigraphic data show that reconfiguration of river drainages resulted from mountain uplift in the tropical Andes, investigations of the impact of landscape change on the evolution of the flora in the region have been restricted to terrestrial taxa.We explore the role of landscape change on the evolution of plants living strictly in rivers across drainage basins in northern South America by conducting population structure, phylogenomic, phylogenetic networks, and divergence-dating analyses for populations of riverweeds (Marathrum, Podostemaceae).We show that mountain uplift and drainage basin formation isolated populations of Marathrum and created barriers to gene flow across rivers drainages. Sympatric species hybridize and the hybrids show the phenotype of one parental line. We propose that the pattern of divergence of populations reflect the formation of river drainages, which was not complete until <4 MaOur study provides a clear picture of the role of landscape change in shaping the evolution of riverweeds in northern South America, advances our understanding of the reproductive biology of this remarkable group of plants, and spotlights the impact of hybridization in phylogenetic inference.

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Analysis of state of biotic resources of Vereshchytsia River basin

Visnyk of the Lviv University. Series Geography ◽

10.30970/vgg.2014.47.820 ◽

2014 ◽

pp. 88-97

Author(s):

Volodymyr Grekh ◽

Oksana Kormylo ◽

Semen Kukurudza

Keyword(s):

Key Words ◽

River Basin ◽

Drainage Basin ◽

Anthropogenic Factors ◽

Rational Use ◽

Forage Base ◽

The Impact ◽

Hunting And Fishing ◽

Biotic Resources

The resources of plants (forest and meadow-marsh), animals (hunting and fishing) on example of the drainage basin of river Vereshchytsia as clearly defined the terrestrial-waterу spatio-functional geosystem are analysed. Also the role of phyto- and zooplankton in the improving of the forage base fisheries is analysed. The relationships and the interdependences of abiotic and biotic components of the environment and the impact of the anthropogenic factors on them are considered. Key words: biotic resources, drainage basin, river basin approach, rational use, reproduction, protection of biota.

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Plio-Pleistocene Landscape Evolution of the Turano River Basin (Central Apennines, Italy): Insights from Continental Deposits’ Analysis and Drainage Network Development

Geosciences ◽

10.3390/geosciences11060245 ◽

2021 ◽

Vol 11 (6) ◽

pp. 245

Author(s):

Vania Mancinelli ◽

Gian Paolo Cavinato ◽

Francesco Ciavattella ◽

Alessandro Cecili ◽

Maurizio D’Orefice ◽

...

Keyword(s):

Network Analysis ◽

Landscape Evolution ◽

Tectonic Activity ◽

Drainage Network ◽

Network Development ◽

Central Apennines ◽

Lazio Region ◽

Field Evidence ◽

Continental Deposits ◽

Basin Scale

Quaternary continental deposits record spatio-temporal changes of the landscape and offer insights for drainage network analysis and paleoenvironmental reconstructions. This paper focuses on the Turano River, a left tributary of the Velino River, which flows in the southwestern Abruzzo area at the boundary with Lazio Region. Its basin preserves lithological and morphological field evidence particularly suitable for reconstructing the long-term geomorphological evolution of the Central Apennines and the drainage network development. In detail, the Turano River was investigated through a drainage basin-scale analysis incorporating morphometric analysis, field mapping, continental deposits analysis, and integrated drainage network analysis. This approach allowed us to define a drainage network reversal process, clearly highlighted by the spatial arrangement of continental deposits, spanning from Upper Pliocene to Holocene. The results also indicated tectonic activity as the main factor driving incision and river inversion processes. The work contributes to identifying and describing the main steps of the Quaternary landscape evolution of this mountainous catchment and its morphoneotectonic framework. Therefore, it could represent a methodological tool for multidisciplinary studies in similar mountainous catchments to support any territorial planning activity, from large infrastructure localization (i.e., artificial dams) to sustainable land management.

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