Person:
Martín Duque, José Francisco

First Name

José Francisco

Last Name

Martín Duque

URI

https://hdl.handle.net/20.500.14352/75232

Affiliation

Universidad Complutense de Madrid

Faculty / Institute

Ciencias Geológicas

Department

Geodinámica, Estratigrafía y Paleontología

Area

Geodinámica Externa

Identifiers

Full item page

Search Results

Now showing 1 - 10 of 54

Baseline to evaluate off-sitesuspended sediment-related mining effects in the Alto Tajo Natural Park, Spain
(Land Degradation and Development, 2017) Zapico Alonso, Ignacio; Laronne, Jonathan; Martín Moreno, Cristina; Martín Duque, José Francisco; Ortega, Ana; Sánchez Castillo,Lázaro
Mining is a human activity with considerable environmental impact. To evaluate such impacts, international laws require undertaking local studies based on direct sampling to establish baseline conditions of parameters modified by human activities. Mining takes place near the Alto Tajo Natural Park, where a suspended sediment concentration (SSC) baseline is required to determine whether mining affects water quality. To this end, we have monitored the Tajo River and its tributary the Tajuelo following Before–After Control-Impact (BACI) techniques, recommended by Australian and New Zealand laws, requiring a specific method based on continuous monitoring and sampling to enable evaluation of SSCs. An SSC baseline has been defined at stations situated upstream of the mining area and compared with those downstream. The highest detected SSC upstream of the Tajuelo mines was 24 g l−1 whereas the highest simultaneous downstream value was 391 g l−1, more than one order of magnitude higher than the supposed baseline (24 g l−1). Additionally, this value is 1000 times more than the average concentration of 25 mg l−1, used by the European Union until 2015, to guarantee the quality of salmonid waters. Following a BACI approach, a statistically significant SSC impact has been identified. The mined areas are the only source that can explain this increase. This is the first instance that such an increase and baseline have been found using this method. BACI is a simple and reliable method recommended for studying degraded areas rather than an irrelevant, fixed standard as included in most international laws.
Continuous monitoring of bedload discharge in a small, steep sandy channel
(Journal of hydrology, 2013) Lucía Vela, Ana; Recking, Alain; Martín Duque, José Francisco; Storz Peretz, Yael; Laronne, Jonathan
This paper reports on bedload flux and texture monitored in a natural, steep, sandy ephemeral channel draining a small gullied sandy watershed, the Barranca de los Pinos (1.32 ha), Spain. Bedload flux was continuously monitored with two independent Reid-type slot samplers; bedload texture was determined from the sediment collected in the samplers. Channel morphology was surveyed with a high spatial resolution with a Terrestrial Laser Scanner. The monitored instantaneous bedload fluxes are among the highest measured in natural rivers, characterized by high temporal and spatial variability related to the presence of bedforms, shallow bars and sand sheets, and to the reworking of the dry bed between and at the end of individual flow events. The grain size distribution of the bedload indicates equal mobility; but bedload texture fluctuates, depicting the transport of coarser bar surfaces and of finer-grained anabranch surfaces as well as of the overall bed subsurface.
Open-Cast Mining Deformations Monitoring using Sentinel-1 SAR data (SBAS technique)
(Journal of Sustainable Mining, 2023) Naddaf Sangani, Mahvash; Hosseinzadeh, Seyed Reza; Martín Duque, José Francisco; Toroghi, Mahnaz Jahadi; Malik, Kapil Kumar
Land surface deformation created by mining activities can have negative impacts on the environment. Measuring them can be a tool for managing the environmental impacts of mining. Synthetic Aperture Radar Interferometry is a remote sensing method for measuring deformations. The main aim of this research is to investigate the deformation phenomenon on a region scale and extend our understanding of it to all mining deformation areas across the country. This paper used Small Baseline Subset Interferometric Synthetic Aperture Radar technology to obtain deformations information in the Sangan mine based on mining activities. We used 48 scenes of Single Look Complex(SLC) data acquired by the Sentinel-1A, C-band of the European Space Agency descending orbit paths from 2014 to 2020. The Time Series of SBAS results show that the deformation velocity rate is about –20 to –35 mm/yr, and the displacement is attributed to approximately –120 mm in the Line of Sight direction. The main deformation zone is situated in the mining area on the main alluvial fan. This study presented the relationship between deformations and mining activity's effects on the ground. Mining activities were accompanied by ground deformation in the mining area: the ground deformation is exacerbated by the increasing mining quantity, and as a result will cause erosion, flood, and other geomorphologic phenomena in the area. We compared the results of the SBAS technique with leveling data for validating the data of SBAS. Their comparison shows approximately suitable agreement with the results of SBAS.
Geological factors of the Guadalajara landscapes (Central Spain) and their relevance to landscape studies
(Landscape and urban planning, 2004) García Quintana, Alvaro; García-Hidalgo Pallarés, José Francisco; Martín Duque, José Francisco; Pedraza Gilsanz, Javier de; González Martín, J.A.
The landscapes of a territory are the consequence of its history; overlapped geological, vegetable and cultural histories usually exist on a landscape. At the Mediterranean domain, however, a translucent vegetation exists, and its history is closely related to the geologic and cultural histories, because low-technology agricultural uses on a different hardness rock background control vegetation. Thus, in areas like the Guadalajara province, the geologic composition and the human activities can be considered the primary conditions for landscape configuration. Both condition the typologies, distribution and relative importance of the geotic, biotic and anthropogenic components of landscapes. A complex network of interrelations among all them exists but, in the base of which lie the geology of the territory, included relief, because it has amore independent influence since man cannot modify the geologic factors; such as the colour of the rocks, the size and distribution of rock bodies, the palaeogeographic domains and the tectonic structure all which control landscape development and configuration. Moreover, geology influences conditions and even limit, the presence, typologies and development of the biotic and anthropogenic elements. These factors also have a major relevance for environmental management, educational and economic policy, and, in some cases, for environmental impact assessment.
Geomorphic landscape design integrated with progressive mine restoration in clay quarries of Catalonia
(International Journal of Mining, Reclamation and Environment, 2021) Martín Duque, José Francisco; Tejedor, M.; Martín Moreno, Cristina; Nicolau Ibarra, José Manuel; Sanz Santos, Miguel Ángel; Sánchez Donoso, Ramón; Gómez Díaz, José M.
Geomorphic-based mine restoration of clay quarries in Tortosa (Catalonia) was co-funded by the European Union’s LIFE programme. The landform design was made with GeoFluv-Natural Regrade. Their building was performed with existing machinery pool and operators. The main constraint was the impossibility of setback regrading of pre-existing-benched highwalls. Progressive geomorphic mine restoration neither reduced mineral production nor changed the operations. The approach has resulted in higher landscape functionality and integration. Monitoring showed localised erosion due to poorly planned discharge of road runoff and sporadic tunnel erosion. Sediment movement at the designed drainage network is similar to the local fluvial dynamics.
Trabajos presentados en la VI Reunión de la IPA España: preámbulo
(Boletín de la Real Sociedad Española de Historia Natural. Sección Geológica, 2004) Pedraza Gilsanz, Javier de; Carrasco González, Rosa María; Martín Duque, José Francisco
Perspective: The historical reference in restoration ecology: Re-defining a cornerstone concept
(Biological conservation, 2014) Balaguer Núñez, Luis; Escudero Alcántara, Adrián; Martín Duque, José Francisco; Mola, Ignacio; Aronson, James
Ecological restoration aims to revitalize ecosystem integrity and functionality following severe damage or degradation. Often, however, efforts are hampered by an incomplete or flawed concept of historical ‘reference’ used when choosing or constructing a target ecosystem or landscape to restore ‘to’. This problem may stem from a culturally-skewed interpretation of history or from misunderstanding or underestimation of the role that humans have played in a given ecosystem’s historical development and dynamics. While strongly confirming the importance of the reference concept in restoration ecology, we argue for the need to refine it, and to broaden the ways it can be conceived, developed, and applied. Firstly, the historical reference system informing a given restoration project should be grounded in both latent and active ‘ecological memories’, encoded and stored across relevant geographical and temporal scales. Further, the generally neglected geomorphic component of reference-building should also be addressed, as well as the contributions of human cultures to current ecosystem and landscape condition. Thirdly, ecosystems are historically contingent and multi-layered. Pre-versus post-disturbance comparisons are insufficient. Instead, restoration scenarios should be seen as tapestries of multiple and successive states. In sum, a well-conceived reference model helps promote and ensure the recovery and subsequent maintenance of historical continuity, i.e., the reestablishment of an impaired ecosystem to its historic ecological trajectory. We use case studies from pain and Peru to illustrate how this approach can provide better goalposts and benchmarks, and therefore better guide the planning, implementation, and evaluation of effective restoration projects.
The Potential of Permanent Gullies in Europe as Geomorphosites
(Geoheritage, 2019) Zglobicki, Wojciech; Poesen, Jean; Cohen, Marianne; Del Monte, Maurizio; García Ruiz, José M.; Ionita, Ion; Niacsu, Lilian; Machová, Zora; Martín Duque, José Francisco; Nadal Romero, Estela; Pica, Alessia; Rey, Freddy; Solé Benet, Albert; Stankoviansky, Miloš; Stolz, Christian; Torri, Dino; Soms, Juris; Vergari, Francesca
Geotourism is a useful way to educate societies in the field of geomorphology and related natural hazards. Geosites, including geomorphosites, represent the basis for the development of this type of tourism. This study describes 12 representative gully regions within nine European countries. The characteristics of 42 permanent gullies, gully systems, and badland landscapes are presented. Based on scientific values of the sites, educational lessons to be learned were identified that are mainly related to (i) gullies as a geological window, (ii) present-day geomorphological processes and (iii) stages of historical gully erosion reflecting past human–environment interactions. To evaluate possible education activities, a geotouristic assessment of the studied gullies and badlands was made, based on scientific, educational, functional and touristic indicators. This assessment demonstrates a large difference between the selected gully and badland sites, particularly with regard to functional and tourist values. The geotouristic potential of gullies (badlands) is the highest in Italy and Spain and the lowest in Romania and Latvia. In some countries, permanent gullies are not regarded as geotouristic attractions at all, while in others, they constitute a significant element of their tourism development strategy. In our opinion, all activities must be part of a broader strategy for the development of geotourism in gully and badland regions, for example, gullies may be included as geosites within existing or planned geoparks.
Land transformation by humans: A review
(GSA Today, 2012) Hooke, Roger Leb.; Martín Duque, José Francisco; Pedraza Gilsanz, Javier de
In recent decades, changes that human activities have wrought in Earth’s life support system have worried many people. The human population has doubled in the past 40 years and is projected to increase by the same amount again in the next 40. The expansion of infrastructure and agriculture necessitated by this population growth has quickened the pace of land transformation and degradation. We estimate that humans have modified >50% of Earth’s land surface. The current rate of land transformation, particularly of agricultural land, is unsustainable. We need a lively public discussion of the problems resulting from population pressures and the resulting land degradation.
Stabilization by geomorphic reclamation of a rotational landslide in an abandoned mine next to the Alto Tajo Natural Park
(Engineering Geology, 2019) Zapico, Ignacio; Molina, Antonio; Laronne, Jonathan B.; Sánchez Castillo, Lázaro; Martín Duque, José Francisco
Two abandoned kaolin mines, surrounding one of the most outstanding natural parks of Spain, the Alto Tajo, have caused frequent environmental impacts. Within these are unstable areas prone to extensive mass movements that influence off-site sediment dynamics over the fluvial system. A waste dump in the Nuria mine obstructing a stream in the center of a valley experienced a rotational landslide. Mass movement between 2012 and 2014 was 0.025–0.026 m day−1. To mitigate the high risk of an earthflow, a novel stabilizing surface drainage technique was implemented. Two remedial valleys designed with fluvial channels were constructed surrounding the landslide main body using natural landform design and regrading, with no need for artificial materials such as concrete or piles. This novel remediation process is generically termed geomorphic reclamation. The specific method applied to this site was GeoFluv with Natural Regrade software. Before (2014) and after geomorphic stabilization (2015–2017), the landslide was monitored using Digital Elevation Models (DEMs) of Difference (DODs) obtained by a Geomorphic Change Detection (GCD) tool. Two modern techniques, Terrestrial Laser Scanning (TLS), and, Structure from Motion photogrammetry combined with an Unmanned Aerial Vehicle (SfM-UAV), were used to acquire High-Resolution Topographies (HRTs) from which DEMs were derived. Data analysis and field monitoring results demonstrate that: i) the Nuria mine transformed almost 50% of the upper part of a natural catchment; ii) a waste dump active landslide with a surface rupture <15m posed a high-risk hazard due to its continuous advance; iii) geomorphic reclamation succeeded in stabilizing the landslide during the monitoring period; iv) SfM-UAV-based topographies offer better accuracy and higher resolution, are cheaper and are obtained faster than TLS for mine areas.