Nemesio Heredia

Nemesio Heredia
Instituto Geológico y Minero de España | IGME · Department of Geosciences Research and Prospective

PhD in Geology

About

221
Publications
64,897
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Introduction
Científico Titular (Senior Researcher) Instituto Geológico y Minero de España (IGME) 2/1986 – Becario (Research Fellow) Instituto Geológico y Minero de España (IGME) 1/1984 –2/1986 Tit. Superior Contratado (Junior Researcher) Empresa Nacional Adaro de Investigaciones Mineras (ENADIMSA) 7/1983 – 12/1983 Becario (Research Fellow) Instituto de Geología Aplicada de la Universidad de Oviedo (IGA) 7/1981 – 12/1982
Additional affiliations
June 2016 - September 2019
Instituto Geológico y Minero de España
Position
  • Caracterización y modelización de los grandes sistemas de fallas alpinas del Macizo Varisco del NO peninsular: Fallas de largo recorrido temporal y actividad reciente (FALPINO) CGL2015-70970-P
Description
  • Main Researcher: Fidel Martín González (Universidad Rey Juan Carlos URJC, Spain) Spanish I+D+i Plan (Convocatoria de Excelencia)
January 2015 - December 2016
Instituto Geológico y Minero de España
Position
  • Evolución tectónica de los Andes Norpatagónicos entre los 42° y 43° 30’ S: deformación andina y su relación con la reactivación de anisotropías peri-gondwánicas. PICT 2014-1394 (FONCYT, Argentina)
Description
  • Main Researcher: Dario Leandro Orts (IDEAN-Argentina)
January 2013 - December 2018
Instituto Geológico y Minero de España
Position
  • Modelización de los procesos geológicos que intervienen en el tránsito entre orógenos colisionales y no colisionales: el ejemplo de la acrección de Chilenia a Gondwana (Andes Centrales 28-37ºS) (TORANDES) CGL2012-38396-C03
Description
  • Main Researcher: Nemesio Heredia
Education
September 1986 - November 1991
University of Oviedo
Field of study
  • Geology
June 1981 - July 1983
Faculty of Geology, Oviedo University
Field of study
  • Geology
September 1976 - June 1981
Faculty of Geology, Oviedo University
Field of study
  • Geology

Publications

Publications (221)
Article
Full-text available
In the Cenozoic Central Volcanic Zone of the Andes, the genetic relationships between regional deformation, volcanic activity, and epithermal mineralization are not fully established. In order to shed some light on the matter, we present new macro and mesoscopic structural data, fault-slip data inversion and ⁴⁰Ar-³⁹Ar geochronology for volcanic roc...
Article
The Cabuérniga Fault System (CFS) extends for 150 km in E-W trend along the northern divide of the Cantabrian Mountains, near the Cantabrian Sea. This fault system was reactivated several times since the Paleozoic, and displays hydrothermal activity nowadays. We present here a detailed geological map of the whole CFS and six cross-sections distribu...
Article
The presence of metamorphic rocks along the North Patagonian Andes is well known. All these metamorphic rocks are intruded by plutonic igneous rocks of Devonian, Carboniferous and Permian ages. The geographic localization of these rocks in the same geological province led to a first approach to grouping them under the same lithostratigraphic unit (...
Book
Full-text available
The El Quevar or Quevar-Azufrero volcanic complex (CVEQ) is located in the Andine high plateau of La Puna, between the 24º 5’ y 24º 25’ S latitude (Salta Province, NO Argentine). The CVEQ rises between 5.810 m y 6.130 m above sea level, covers an area of approximately 1,500 km2 and has a mineralized zone that outcrops mainly in the Quebrada de Inca...
Book
Full-text available
La hoja de Ponferrada abarca una amplia sección del sector NO del Macizo Ibérico, en la que se encuentran representadas varias de las zonas en las que éste se ha subdividido: La Zona Asturoccidental-leonesa (ZAOL), La Zona Centroibérica (ZCI) y la Zona de Galicia-trás-os-Montes (ZGTM). Estas zonas corresponden a diferentes dominios tectonoestratigr...
Article
In the northern Iberian Peninsula, the Pyrenean-Cantabrian orogenic belt extends E-W for ca. 1000 km between the Atlantic Ocean and Mediterranean Sea. This orogen developed from the collision between Iberia and Eurasia, mainly in Cenozoic times. Lower-middle Permian sediments crop out in small, elongated basins traditionally considered independent...
Conference Paper
Full-text available
En los Andes Norpatagónicos es conocida la existencia de rocas metamórficas e ígneas de edad paleozoica. Debido a la discontinuidad de los afloramientos y sus similitudes litológicas, en una primera instancia se agrupó a todas las rocas metamórficas de este sector en una misma unidad y se estableció una edad similar para todas ellas en base a corre...
Article
Full-text available
This work presents a new methodological structure-mapping model in poly-orogenic settings, allowing a better display and understanding of structure reactivations, so that subsequent structural interpretations become easier to carry out. The selected area for this purpose is the Picos de Europa region (NW Spain), where four fault sets (Variscan thru...
Article
We report the results of a multidisciplinary study of the early Permian (Artinskian–Kungurian) Sotres Formation of northern Spain integrating sedimentology, palaeosols, mineralogy, stable isotopes, palynology, ichnology and tectonics. This continental unit was deposited in the near-equatorial Peri-Tethyan Cantabrian Basin. Having developed in the m...
Article
Full-text available
Evidence is growing that a belt of Devonian plutonism is present in the Northern Patagonian segment of the present-day Andes. This plutonism formed along the paleo-Pacific margin of the Gondwana supercontinent. New whole rock chemistry and SHRIMP U–Pb zircon data for plutonic rocks of the San Martín de los Andes batholith (southwestern Argentina) p...
Article
The role of inherited weaknesses in metamorphic basements with respect to the geometry and tectonic evolution of subsequent orogens formation forms a cornerstone of structural reconstructions, especially in non-inverted orogens with old Variscan basements. In this study, we analyse the geometry, kinematics, and tectonic evolu-tion of the complex we...
Book
El Mapa Geológico de la Hoja de León (Nº 19) a escala 1:200.000, se encuentra en el NO de la Península Ibérica, en el borde noroeste de la Cuenca del Duero, al sur de la Cordillera Cantábrica y al este de los Montes de León. URL for downloads: http://info.igme.es/cartografiadigital/geologica/Geologico200Hoja.aspx?intranet=false&id=19
Book
URL for downloads: http://info.igme.es/cartografiadigital/geologica/Geologico200Hoja.aspx?intranet=false&id=19
Book
La Bahía Esperanza se encuentra en la Península Tabarin, situada en el extremo norte de la Península Antártica (Península Trinidad), en el límite con el Estrecho Antártico y bañada por el Mar de Weddell, a una latitud y longitud medias de 63º30’S y 57º00’W. Desde el punto de vista geológico la Península Antártica ha sido considerada tradicionalmen...
Conference Paper
Full-text available
Phase equilibria modelling of the partial melting conditions of the Paleozoic basement in San Martín de los Andes. This work is focused on the determination of P-T conditions for the and pressure of this event between 680° and 736°C and 4-5.4 kbar metamorphic rocks in San Martin de Los Andes area that have reached anatectic conditions. Basement roc...
Chapter
Full-text available
The Permian-Triassic rifting represents the first of the two Mesozoic rifting stages recorded in the Iberian Peninsula. Its first phases of development started during the Early Permian, and were linked to the beginning of the break-up of Pangea, the large, unique and rheologically unstable supercontinent that mainly resulted from the collision of G...
Chapter
• The Variscan orogenic belt that crops out in the western Iberian Peninsula forms the Iberian Massif. In the northwestern sector of this massif (the external Cantabian Zone), the orogeny finished in Late Carboniferous (Gzelian)-Early Permian (Asselian) times, developing a characteristic arc shaped orogen (Asturian Arc) (Merino-Tomé et al. 2009; Gu...
Chapter
Full-text available
Introducción La Zona Cantábrica (ZC) constituye la zona externa de la Cordillera Varisca del NO de la Península Ibérica [1]. Su estructura actual es el resultado de la superposición de las orogenias varisca y alpina, entre las que se intercaló una tectónica extensional durante los tiempos mesozoicos. No obstante, la deformación alpina [2] produjo e...
Chapter
Full-text available
Los relieves del Orógeno Alpino Pirenaico-Cantábrico se extienden en dirección E-O por el norte de la Península Ibérica . En su terminación occidental las estructuras alpinas afectaron al basamento paleozoico varisco (NO del Macizo Ibérico) lo que le confiere a esta parte del orógeno unas características diferentes. Este basamento no presenta recub...
Article
The Pyrenean-Cantabrian Orogen arose through the collision of the Iberian and Eurasian plates, mostly in Cenozoic times. This orogen comprises two main mountain ranges, the Pyrenees to the east, and the Cantabrian Mountains to the west. To date, the early Alpine tectono-sedimentary phases preserved in the Cantabrian Mountains, of Permian and Triass...
Preprint
In the surroundings of San Martín de los Andes (Argentinian Patagonia), the Palaeozoic basement consists of metamorphic and plutonic rocks. Metamorphic rocks are schists, gneisses and migmatites that are typically strongly deformed. Considering the geochemical and petrographic characteristics of these metamorphic rocks, their protolith could be con...
Article
Full-text available
In San Martín de los Andes area (Argentinian Patagonia) the Palaeozoic basement consists of metamorphic and plutonic rocks. The metamorphic rocks include strongly deformed schists, gneisses and migmatites. Their geochemical and petrographic characteristics suggest that the protholith could have been a sequence of pelites and greywackes. Detrital zi...
Article
In the southwestern margin of Gondwana, preserved in the Argentinean-Chilean Andes (28-38º S latitude), three subduction events, Famatinian, Chanic and Gondwanan, took place from the Ordovician to the middle Permian. The first two culminate in collisional orogens in Middle Ordovician and Late Devonian times respectively, while the Gondwanan is a su...
Conference Paper
Full-text available
El basamento paleozoico ubicado al oeste del Macizo Norpatagónico aflora sobre la RN 237 y RN 234, 70 km al Sur de Piedra del Águila y está compuesto de esquistos y migmatitas estromatíticas que son la roca de caja de cuerpos graníticos. Estas rocas fueron asignadas a la Formación Cushamen y a la Formación Mamil Choique, respectivamente (Varela et...
Conference Paper
Full-text available
Resumen: El NW peninsular es una región intraplaca de sismicidad moderada y anormalmente alta para esta región del Macizo Ibérico. Esta sismicidad fue revisada y presentada en la primera edición de Iberfault, pero ¿cómo ha sido desde entonces?, ¿ha disminuido/aumentado? ¿Ha migrado? Para estudiar la evolución de dicha sismicidad se ha analizado el...
Book
Full-text available
This book describes the Paleozoic to Cenozoic evolution of the Chilean and Argentinean Andes. The book is structured from a historical perspective concentrating on specific processes explained in each chapter. The chapters cover dynamic subsidence; neotectonics; magmatism; long and short term deformation; spatial development of ancient orogenic pro...
Chapter
Full-text available
During the late Neoproterozoic and Paleozoic times, the Southern Andes of Argentina and Chile (21º-55º S) formed part of the southwestern margin of Gondwana. During this period of time, a set of continental fragments of variable extent and allochtony was successively accreted to that margin, resulting in six Paleozoic orogenies of different tempora...
Book
This book describes the Mesozoic to Cenozoic evolution of the Chilean and Argentinean Andes. The book is structured from a historical perspective concentrating on specific processes explained in each chapter. The chapters cover dynamic subsidence; neotectonics; magmatism; long and short term deformation; spatial development of ancient orogenic proc...
Chapter
Full-text available
El Parque Nacional de los Picos de Europa (PNPE), situado en una zona de la Cordillera Cantábrica que se extiende por las provincias de Asturias, Cantabria y León, encierra dentro de su perímetro las mayores altitudes de la cadena. La brava orografía, acentuada por la proximidad del mar Cantábrico, nivel de base de cursos fluviales obligados a exca...
Conference Paper
Full-text available
During the late Neoproterozoic and Paleozoic, the Argentinean-Chilean Andes and, since the late Paleozoic, the Antarctic Peninsula formed part of the southwestern margin of Gondwana. During this long period of the geological time, a set of continetal fragments of variable size and allochtonie was successively accreted to that margin. This process,...
Article
Full-text available
This paper presents the preliminary results of a project aimed at establishing a system of geoindicators to manage the geological heritage in Spanish National Parks. The results presented here are summarized in two supplementary actions. The first one is an inventory of geological sites (LIG) in the Picos de Europa National Park. Some criteria such...
Article
Full-text available
During the late Neoproterozoic and Paleozoic times, the Argentinean-Chilean Andes and, since the late Paleozoic, the Antarctic Peninsula, were forming part of the southwestern margin of Gondwana. During this period of time, a set of continetal fragments of variable extension and allochtonie was successively accreted to that margin, resulting in the...
Conference Paper
Full-text available
Las rocas miloniticas obliteran rasgos mineralógicos y texturales, dificultando o impidiendo la correcta asignación litológica o estratigráfica de las rocas. Las tres fajas miloniticas principales tienen rumbo NO_SE, transporte tectónico hacia el NE y se ubican en la zona de Paso Garibaldi-Lago Escondido, en el faldeo norte de Monte Olivia y en la...
Article
Full-text available
Resumen: La sucesión pre-carbonífera del Complejo Guarguaraz consta de tres unidades metamórficas que se encuentran deformadas por estructuras pertenecientes a tres episodios de deformación chánicos. El primer episodio (D1) está representado por pliegues de pequeño tamaño, acostados y vergentes al NO, a los que se asocia un clivaje (S1) desarrollad...
Article
Full-text available
Resumen: En el basamento paleozoico pre-carbonífero del Bloque San Rafael, las rocas situadas al este del Cabalgamiento Gondwánico de Los Reyunos muestran estructuras chánicas (pre-carboníferas) vergentes al este y generadas en ausencia de metamorfismo, mientras las situadas al oeste de dicho accidente fueron deformadas en condiciones metamórficas...
Article
Full-text available
Resumen: El basamento ígneo-metamórfico pre-mesozoico de la Cordillera Nordpatagónica se asigna al Complejo Colohuincul. El mismo incluye rocas metamórficas de medio-alto grado ubicadas en el área de San Martín de los Andes, rocas metamórficas de bajo grado ubicadas en Cuesta de Rahue y rocas ígneas intrusivas devónicas (ca. 400 Ma). Estas rocas fu...
Conference Paper
Full-text available
Se presenta un modelo de evolución geodinámica paleozoica para el sector de los Andes argentino-chilenos situado a los 28º-38º S, donde tuvieron lugar hasta tres procesos subductivos, de los cuales los dos más antiguos (Famatiniano y Chánico) culminaron con dos orogenias colisionales, mientras que el más reciente (Gondwánico) es el precursor de la...
Article
Full-text available
El Bierzo Tertiary sub-basin (Oligocene–Miocene, NW Spain) is a small remnant of the western Duero Basin, a nonmarine broken foreland basin developed in front of the Cantabrian Mountains (Pyrenean orogen). The alluvial infill of El Bierzo Tertiary sub-basin consists of a coarsening-upward succession from fluvial (Toral Formation) to alluvial-fan de...
Conference Paper
Full-text available
We present a new geodynamic evolution for the late Paleozoic accretionary complex of the Chilean coast, located between Tanumé-Pichilemu villages. The accretionary complex has been interpreted as paired metamorphic belt, with continuous exposures along the Coastal Cordillera between 34° and 38°S, was formed during subduction of the paleo-Pacific pl...
Article
Full-text available
Gold is a mineral very appreciated by most civilizations and gold deposits arouse the interest of both the students and the general public. The Roman mine of Las Médulas, declared World Heritage Site by UNESCO and its surroundings areas are an exceptional site, not only by the quality of its outcrops, which allow teaching geological lithologies and...
Article
Full-text available
New data on some neopalaeozoic lithostratigraphic units of the central sector of the Argentinean Precordillera are presented. The western Precordillera displays occasional outcrops of siliciclastic rocks of the Late Palaeozoic. These rocks are separated by two main unconformities related to the development of the Chanic (Upper Devonian-early Carbon...
Article
Full-text available
The South American Pacific margin resulted from the alignment of the Andean Cordillera. The present architecture of the Andes is one of the best examples of mountain ranges associated with subduction, generated by the Andean Orog- eny and developed along the Cenozoic. During the Palaeozoic, the area of the present Andean Ranges and Antarctic Penins...
Article
Full-text available
The Cordón del Carrizalito is located in the southern sector of the Andean Frontal Cordillera. In this area, the Andean basement is composed of meta-sedimentary rocks (Las Lagunitas Formation) of Ordovician age. In addition, no- or very low grade metamorphism and less deformed rocks also occur in the study area. We call these rocks Selerpe series,...
Article
Full-text available
The Palaeozoic basement outcropping to the north of Los Vilos is formed by (i) the Choapa Metamorphic Complex (ChMC) made of metabasites (amphibolites and retrogressed eclogites), fine-grained gneisses, schists and quartz-schists, and (ii) the meta-sedimentary and sedimentary rocks of the Arrayán and Huentelauquén formations respectively. Near Huen...
Article
Full-text available
The tectonic style of the eastern morphostructural units of the Central Andes between 32°20´ and 33°20´S is strongly influenced by pre-Andean structures, especially those developed during the late Carboniferous-Early Permian San Rafael orogeny of the Gondwanan orogenic cycle. Moreover, in the study area pre-arboniferous rocks were deformed in Late...
Article
Full-text available
The Pre-Andean Paleozoic substrate from the Cordillera del Viento anticline is a polyorogenic basement composed of two groups of preorogenic rocks with different stratigraphy and deformation. The oldest set consists of pre-Late Devonian metasedimentary rocks belonging to the Guaraco Norte Formation. The upper set is formed by the thick volcano-sedi...
Conference Paper
Full-text available
Air temperature at 1,649 m asl (ºC) Spring water temperature (ºC) Precipitations at 1,649 m asl (mm) Research in karst aquifers developed in high-mountain areas combining KARSYS models with springs discharge records. Picos de Europa, Spain. (Spain) m.melendez@igme.es 3 Swiss Institute for Speleology and Karst Studies (Switzerland) info@isska.ch Ack...
Article
Full-text available
Ages of Cenozoic sedimentary basins yield information that can be used to infer detailed spatial and temporal evolution in the Alpine foreland. The Tertiary deposits of the NW Iberian Peninsula comprise the remains of a broken foreland basin (the West Duero Basin). This work constrains the timing of tectonic fragmentation and the evolution of the w...