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Tremp Formation
The Tremp Formation (, ), alternatively described as Tremp Group (), is a geological Formation (geology), formation in the comarca Pallars JussĂ , Lleida Province, Lleida, Spain. The formation is restricted to the Tremp-Graus Basin, Tremp or Tremp-Graus Basin (), a piggyback basin, piggyback foreland basin in the Catalonian Pre-Pyrenees. The formation dates to the Maastrichtian to Thanetian,Pujalte & Schmitz, 2005, p.82 thus the formation includes the Cretaceous-Paleogene boundary that has been well studied in the area, using paleomagnetism and carbon and oxygen isotopes. The formation comprises several lithologies, from sandstone, conglomerate (geology), conglomerates and shales to marls, siltstones, limestones and lignite and gypsum beds and ranges between in thickness. The Tremp Formation was deposited in a continental to marginally marine fluvial-lacustrine environment characterized by estuary, estuarine to river delta, deltaic settings. The Tremp Basin evolved into a sedi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geological Formation
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics (lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exposed in a geographical region (the stratigraphic column). It is the fundamental unit of lithostratigraphy, the study of strata or rock layers. A formation must be large enough that it can be mapped at the surface or traced in the subsurface. Formations are otherwise not defined by the thickness (geology), thickness of their rock strata, which can vary widely. They are usually, but not universally, tabular in form. They may consist of a single lithology (rock type), or of alternating beds of two or more lithologies, or even a heterogeneous mixture of lithologies, so long as this distinguishes them from adjacent bodies of rock. The concept of a geologic formation goes back to the beginnings of modern scientific geology. The term was used by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ă€ger Formation
Àger (; ) is a municipality in the ''comarca'' of the Noguera in Catalonia, Spain. It is situated in the north-west of the ''comarca'', and the territory of the municipality stretches between the Noguera Ribagorçana and Noguera Pallaresa rivers. The Terradets reservoir on the Noguera Pallaresa is situated within the municipality. The village is linked to Balaguer and Tremp by the L-904 road. It has a population of . Villages *Àger town, 317 inhabitants. *Agulló, 45 inhabitants. *Corçà , 32 inhabitants. * Fontdepou, 16 inhabitants. * Els Masos de Millà , 17 inhabitants. * Millà , 5 inhabitants. * La Règola, 21 inhabitants. * Sant Josep de Fontdepou, 19 inhabitants. * Vilamajor, 13 inhabitants. See also *Viscounty of Àger * ''Apostles from Àger'' *Montsec The Montsec Range ( ; ) is a mountain system of the Pre-Pyrenees. Description The Serra del Montsec consists of a series of calcareous mountain ranges running roughly from east to west. The range system is about 40 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foreland Basin
A foreland basin is a structural basin that develops adjacent and parallel to a mountain belt. Foreland basins form because the immense mass created by crustal thickening associated with the evolution of a mountain belt causes the lithosphere to bend, by a process known as lithospheric flexure. The width and depth of the foreland basin is determined by the flexural rigidity of the underlying lithosphere, and the characteristics of the mountain belt. The foreland basin receives sediment that is eroded off the adjacent mountain belt, filling with thick sedimentary successions that thin away from the mountain belt. Foreland basins represent an endmember basin type, the other being rift basins. Accommodation (the space available for sediments to be deposited) is provided by loading and downflexure to form foreland basins, in contrast to rift basins, where accommodation space is generated by lithospheric extension. Types of foreland basin Foreland basins can be divided into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piggyback Basin
A piggyback basin (also piggy-back, thrust-sheet-top, detached, or satellite basin) is a minor sedimentary basin developed on top of a moving thrust sheet as part of a foreland basin system. Piggyback basins form in the wedge-top depositional zone of a foreland basin system as new thrusts in the foreland cut up through the existing footwall containing the eroded wedge-top basins in the old thrust sheet. The basin is separated from the foredeep by an anticline or syndepositional growth structures. The piggyback basin is named after its tendency to be carried passively toward the hinterland with the old thrust sheet in response to the compressive forces of the new thrust sheet. Sedimentary fill for the basin come from the hanging wall ramp of the older thrust sheet, from the foreland orogeny or from the sides of the basin. Drainage into the basin may come from highs associated with the thrust sheets or the basin may be filled from longitudinal flows across the basin. The Apennine (sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lleida Province
The Province of Lleida (; ; ) is one of the four provinces of Catalonia. It lies in northeastern Spain, in the western part of the autonomous community of Catalonia, and is bordered by the provinces of Girona, Barcelona, Tarragona, Zaragoza and Huesca and the country of France and the principality of Andorra. It is often popularly referred to as Ponent (i.e. the West). Of the population of 414,015 (2007), about 30% live in the capital, Lleida. Some other towns in the province of Lleida are La Seu d'Urgell (the archbishop of which is also the co-prince of Andorra), Mollerussa, Cervera, TĂ rrega, and Balaguer. There are 231 municipalities in Lleida. Located in the Pyrenees, the Aran Valley is a special comarca with greater autonomy and with Aranese, a variety of Occitan, as its official language. The AigĂĽestortes i Estany de Sant Maurici National Park is located in this province. The province enjoys a thriving fruit-growing industry, including pears and peac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pallars JussĂ
Pallars JussĂ () is a comarca (county) in Alt Pirineu, Catalonia, Spain. It was established as a ''comarca'' in 1936, out of the old county of Pallars. The name is an archaism meaning "Lower Pallars"; to the northeast and into the mountains is Pallars SobirĂ . Its capital and largest municipality is Tremp. Municipalities See also *County of Pallars JussĂ The County of Pallars JussĂ or Lower Pallars was a county in the Hispanic March during the eleventh and twelfth centuries, long after the march had ceased to be effectively administered by the Kings of France. It was a division of the County of P ... * Cabdella Lakes References External links Official comarcal web site (in Catalan) [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comarca
A ''comarca'' (, , , ) is a traditional region or local administrative division found in Portugal, Spain, and some of their former colonies, like Brazil, Nicaragua, and Panama. The term is derived from the term ''marca'', meaning a "march, mark", plus the prefix ''co''-, meaning "together, jointly". The ''comarca'' is known in Aragonese as ''redolada'' () and in Basque as ''eskualde'' (). In addition, in Galician, ''comarcas'' are also called ''bisbarras'' (). Although the English word "county" and its near synonym "shire" have similar meanings, they are usually translated into Spanish and Portuguese as ''condado'', a term which in the Iberian Peninsula refers only to regions historically ruled by a ''conde'' (count or earl). However, "comarca" is occasionally used such as in the Spanish Wikipedia entry for ''comarca'' and some translations of ''The Lord of the Rings'' (see below). Community of Portuguese Language Countries In the Community of Portuguese Language Countr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Formation (geology)
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics ( lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exposed in a geographical region (the stratigraphic column). It is the fundamental unit of lithostratigraphy, the study of strata or rock layers. A formation must be large enough that it can be mapped at the surface or traced in the subsurface. Formations are otherwise not defined by the thickness of their rock strata, which can vary widely. They are usually, but not universally, tabular in form. They may consist of a single lithology (rock type), or of alternating beds of two or more lithologies, or even a heterogeneous mixture of lithologies, so long as this distinguishes them from adjacent bodies of rock. The concept of a geologic formation goes back to the beginnings of modern scientific geology. The term was used by Abraham Gottlob ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tremp Formation - Units In The Tremp-Graus Basin
Tremp () is a municipality in Catalonia, Spain, the capital of the ''comarca'' of the Pallars Jussà . It is the largest municipality in Catalonia in terms of area (), accounting for nearly a quarter of the total area of the ''comarca''. The municipality is a geographical oddity and consists of five separate territorial entities within the ''comarca'' (district) of Pallars Jussa (see image). The town of Tremp (population 5.961 as of 2023) is the second smallest of these and is situated in the valley of the Noguera Pallaresa river below Talarn and the Talarn Dam. The largest portion of the municipal territory lies to the west of the valley of the Noguera Pallaresa and stretches as far as the Noguera Ribagorçana river. A third portion is an exclave of the ''comarca'' within the municipality of el Pont de Suert in the Alta Ribagorça. In the east the villages of Palau de Noguera, Suterranya and Vilamitjana form the fourth entity, while the fifth and smallest portion (of only 1, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleogeography Of Europe In The Maastrichtian
Palaeogeography (or paleogeography) is the study of historical geography, generally physical landscapes. Palaeogeography can also include the study of human or cultural environments. When the focus is specifically on landforms, the term paleogeomorphology is sometimes used instead. Paleomagnetism, paleobiogeography, and tectonic history are among its main tools. Palaeogeography yields information that is crucial to scientific understanding in a variety of contexts. For example, palaeogeographical analysis of sedimentary basins plays a key role in the field of petroleum geology, because ancient geomorphological environments of the Earth's surface are preserved in the stratigraphic record. Palaeogeographers also study the sedimentary environment associated with fossils for clues to the evolutionary development of extinct species. Palaeogeography is furthermore crucial to the understanding of palaeoclimatology, due to the impact of the positions of continents and oceans on influ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrenees Topographic Map
The Pyrenees are a mountain range straddling the border of France and Spain. They extend nearly from their union with the Cantabrian Mountains to Cap de Creus on the Mediterranean coast, reaching a maximum elevation of at the peak of Aneto. For the most part, the main crest forms a divide between Spain and France, with the microstate of Andorra sandwiched in between. Historically, the Crown of Aragon and the Kingdom of Navarre extended on both sides of the mountain range. Etymology In Greek mythology, Pyrene is a princess who gave her name to the Pyrenees. The Greek historian Herodotus says Pyrene is the name of a town in Celtic Europe. According to Silius Italicus, she was the virgin daughter of Bebryx, a king in Mediterranean Gaul by whom the hero Hercules was given hospitality during his quest to steal the cattle of Geryon during his famous Labours. Hercules, characteristically drunk and lustful, violates the sacred code of hospitality and rapes his host's daughter. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Locality (geology)
Type locality, also called type area, is the locality where a particular rock type, stratigraphic unit or mineral species is first identified. If the stratigraphic unit in a locality is layered, it is called a stratotype, whereas the standard of reference for unlayered rocks is the type locality. The concept is similar to type site in archaeology. Examples of geological type localities Rocks and minerals * Aragonite: Molina de AragĂłn, Guadalajara, Spain * Autunite: Autun, France * Benmoreite: Ben More (Mull), Scotland * Blairmorite: Blairmore, Alberta, Canada * Boninite: Bonin Islands, Japan * Comendite: Comende, San Pietro Island, Sardinia * Cummingtonite: Cummington, Massachusetts * Dunite: Dun Mountain, New Zealand * Essexite: Essex County, Massachusetts, US * Fayalite: Horta, Fayal Island, Azores, Portugal * Harzburgite: Bad Harzburg, Germany * Icelandite: Thingmuli (ĂžingmĂşli), Iceland * Ijolite: Iivaara, Kuusamo, Finland * Kimberlite: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
