Geomorphological dynamics and flood hazards of the Blanquito River (Tafí del Valle, NW Argentina)

Peña-Monné, Jose Luís; Sampietro-Vattuone, María Marta; Fabre, Miguel Sánchez; Bertini-Sampietro, María Sofía

doi:10.1016/j.jsames.2018.06.021

Cited by 8 publications

(8 citation statements)

References 29 publications

(32 reference statements)

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“…The comparison between the Blanquito (Peña‐Monné et al, 2018) and La Puerta rivers shows that the basin of the main Blanquito River, which caused the severe floods of 1987, is equivalent to one‐third (6.6 km 2 ) of La Puerta basin surface (23 km 2 ). The average gradients are 25 and 16%, respectively, although the main La Puerta affluents reach a gradient of up to 20% and their confluences are close to the alluvial fan apex (Figure 3).…”

Section: Discussionmentioning

confidence: 99%

“…ishment rates. Although we lack quantitative data about La Puerta River, previous studies were made at Blanquito River(Peña-Monné et al, 2018), located only 5 km to the north. Blanquito River basin is similar to our study area because both basins are located in the same mountain range and have the same geology, climate, and land use, among other similar characteristics.During 1986During -1987 rains gave rise to several events of debris flows, flooding residential and urban areas and causing great economic loss.…”

mentioning

confidence: 93%

“…The Pleistocene is represented by loess deposits dated to 1.15 Ma (Schellenberger et al, 2003) and some scattered remains of old alluvial fans (Sampietro‐Vattuone & Peña‐Monné, 2019). The climate is semiarid; rains vary between 400 and 550 mm/year, falling mostly in the summer (December to March), and the average temperature is around 13.1°C (Peña‐Monné et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…experience(Peña-Monné et al, 2018), the alluvial fan characteristics show that the deposits were formed by successive unpredictable large debris flow processes caused by floods throughout the Quaternary. The general evolutionary model of the valley (Peña Monné & Sampietro Vattuone, 2016; Sampietro-Vattuone & Peña-Monné, 2016) indicates that unpredictable climate conditions are prevailing at present, with large debris flow processes being generated in several sectors of the valley.…”

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confidence: 99%

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Impacts of in‐stream aggregate mining on the distributary channels of the alluvial fans of Tafí valley (Northwest Argentina)

Vattuone

Peña-Monné

Rodríguez

et al. 2021

Earth Surf Processes Landf

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In-stream mining is a common aggregate mining practice around the world. However, the impacts of such practice are not always taken into account when the mines are established, and the environmental cost of in-stream aggregate mining is generally not assessed. The purpose of this study was to evaluate the impacts of aggregate mining conducted in La Puerta River (Tafí valley, Northwest Argentina), a dry-pit instream mine, by considering the geomorphological, geoarchaeological, and human effects. Multitemporal analysis of the area using remote sensors (aerial photographs and satellite images 1970-2020), high-resolution drone digital elevation models and orthomosaics (2018)(2019), and an intensive survey demonstrated that the mining area grew exponentially between 2002 and 2020 under unregulated mining. As a result, this practice exerts great environmental impact, including channel section alterations and destabilization of riverbanks, soil loss, river profile changes, and the formation of lag deposits of discarded materials, thus increasing environmental hazard under unpredictable flows. Finally, this is a highly touristic area that has suffered substantial landscape degradation and irreversible archaeological damage.

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Section: Discussionmentioning

confidence: 99%

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confidence: 93%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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Impacts of in‐stream aggregate mining on the distributary channels of the alluvial fans of Tafí valley (Northwest Argentina)

Vattuone

Peña-Monné

Rodríguez

et al. 2021

Earth Surf Processes Landf

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“…Also, it is highlighted that multi-criteria analysis combined with GIS is a widely used methodology to create a flood hazard map, obtaining excellent results at different scales for different terrains (Youssef et al, 2011;Chen et al, 2015;Franci et al, 2016;Kazakis et al, 2015). In Argentina, studies aimed at identifying flood hazard areas are not very common (Esper Angillieri, 2012;Hurtado et al, 2006;Peña-Monné et al, 2018;Quiroz-Londoño et al, 2013), and only a few authors have implemented the multicriteria analysis proposed by Saaty (1980) (Fernández & Lutz, 2010). Likewise, it should be noted that none of the studies has been carried out in a large plain basin with a scarce slope as that of the study area.…”

Section: Discussionmentioning

confidence: 99%

Flood hazard assessment in large plain basins with a scarce slope in the Pampean Plain, Argentina

Borzi

Roig

Tanjal

et al. 2021

Environ Monit Assess

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measurements. Likewise, the map was validated using satellite images and the inhabitants in danger in the basin were quantified. The results show that the flood hazard areas correspond mainly to the floodplain of rivers and tributaries, while the main and secondary divide zones have low flood hazard sectors. On the other hand, numerous urban settlements were identified within flood hazard areas, these being urban settlements in the vicinity of old urban centers and new gated communities with high value homes, quantifying 1961 inhabitants at flood hazard and showing poor territorial planning. The methodology proposed gives to the management agencies the possibility of generating land use maps, as well as designing mitigation and contingency plans after a large rainfall event.Keywords Samborombón river basin • Urban settlements • Multi-criteria analysis • Analytical hierarchy process • GIS

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Heritage conservation hazard in archaeological sites in Santa María Valley (NW Argentina): A geoarchaeological approach

et al. 2020

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Alluvial fans are typical geomorphic features of arid and semiarid mountain areas. Most archaeological sites in Santa María valley (NW Argentina) are located on this kind of landform. The aims of this paper are to describe the geomorphological context and assess the state of conservation of four archaeological sites on the piedmont of Sierra de Quilmes (NW Argentina) from a geoarchaeological perspective; to diagnose the geomorphological processes affecting the sites over the last 50 years; to assess their vulnerability and conservation hazard; and to propose some corrective measures. By mapping with remote sensors (e.g., drones, aerial photographs, and satellite images) and conducting field surveys, we found that most archaeological sites are set on the H1 and H2 units of the alluvial fans. and that their geomorphological dynamic has increased in the last 50 years. The main active processes are debris flows, overflows, and mudflows, accompanied by the development of rills, sheetflood, and aeolian deflation. Human impact is also severe. The four sites need mitigation measures and a structured management plan. To date, no studies of this kind have been done rin the region, although one of the sites has been partially reconstructed for touristic purposes.

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Geomorphological dynamics and flood hazards of the Blanquito River (Tafí del Valle, NW Argentina)

Cited by 8 publications

References 29 publications

Impacts of in‐stream aggregate mining on the distributary channels of the alluvial fans of Tafí valley (Northwest Argentina)

Impacts of in‐stream aggregate mining on the distributary channels of the alluvial fans of Tafí valley (Northwest Argentina)

Flood hazard assessment in large plain basins with a scarce slope in the Pampean Plain, Argentina

Heritage conservation hazard in archaeological sites in Santa María Valley (NW Argentina): A geoarchaeological approach

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