Geopark Sierra Norte De Sevilla Cultural Organization Global Geoparks
Total Page:16
File Type:pdf, Size:1020Kb
Relevant Geosites of United Nations Sierra Norte de Sevilla Educational, Scientific and UNESCO Geopark Sierra Norte de Sevilla Cultural Organization Global Geoparks 3 2 7 8 Cerro del Hierro Natural Monument: (2) Marbled limestone of (7) El Chorro (8) Almadén de la Plata (3) Karst and (4) Mine Guadalcanal Group of waterfalls and holes of great Granite Tors It is a unique karst landscape in Europe: a paleo-karst that Sedimentary formation named "Calizas beauty in the Calzadilla Stream: the At southeast of Almadén de la Plata is was generated 520 million years ago in a tropical del Agua", constituted by marbled current cuts the northern end of the located the Berrocal Granite, with a environment, immediately after the sedimentation of limestone, stratied in layers of small granitic pluton of El Berrocal, generating characteristic granite tors landscape limestones, formed by fossil remains: archaeocyathids thickness with intercalations of siltstones, a large and deep gorge by eroding a produced by weathering: domes, at (animals) and stromatolites (cyanobacteria). with several folds of cylindrical character, subvolcanic dike rock that cut the stones, stone balls, sandy valleys and 4 This karst has been exposed by intense mining, mainly with associated faults. granite. knight’s stones. between the end of the 19th century and the 80’s of the 20th century, although there is evidence of its exploitation in 9 10 12 Roman times and in the Middle Ages, which has left a rich (9) El Real de la (10) El Pedroso Granite Tors (12) Viar Fault historical heritage and architectural. Jara Granite Tors El Pedroso batholith is a pluton with Fractures zone, of three to ve inverse The weathering of the granitic rocks of several granitic rocks: monzogranites, faults, with a width between 200 and Cala pluton has given rise to a granodiorites, white-granites and 1,200 meters and a length superior to 25 5 characteristic granite tors landscape gabbros, that present a characteristic kilometers that superposes the rocks of Suture Zone: (5) Amphibolites in Almadén (“berrocal”), with at stones, sandy valleys, granite tors landscape, with at stones, Ossa-Morena Zone, of Paleozoic age, over de la Plata and (6) Pulo do Lobo Group stone balls and stone accumulations sandy valleys, knight’s stones and stone the deposits of the Viar Basin, of later originated by human action. accumulations. age. The "Beja-Acebuches Amphibolites" is a group of rocks that come from the metamorphism of oceanic basaltic lavas, while the rocks of "Pulo do Lobo Group” are typical deposits 13 14 15 of an accretionary prism at a convergent plate boundary. For (13) Rivera del Huéznar Spring (14) Huesna Waterfalls (15) Capas de Campoallá Formation 6 this reasons this area is considered the suture zone between The Rivera del Huéznar arises through A series of waterfalls and pools due to the two old continental tectonic plates, which were separated several faults in two pools located in the existence of several vertical faults, in a Stratigraphic unit of Cambrian age, by an ocean and converged until they collided (the oceanic village of San Nicolás del Puerto, sector of Rivera del Huéznar where the constituted by detrital and carbonated sector of Southportuguese plate was introduced under constituting the largest spring in the river is divided into two channels. This sedimentary rocks (slates, sandstones and limestone), that appears widely in Ossa-Morena plate). province of Seville, the main natural area was declared Natural Monument of Geopark’s northeastern sector. It indicates discharge of the subterranean aquifer Andalusia on October 2, 2001. sedimentation in a wide, homogeneous “Guadalcanal - San Nicolás”. and shallow marine platform. 16 18 21 22 25 27 (16) Cazalla de la Sierra Diorite (18) Roman Quarry of Los (21) Alanís-San Nicolás del Plutonic rock that arise in an elongated Covachos Puerto Basin massif in the nucleus of a great Marble quarry of Roman times, between Sedimentary rocks of heterogeneous anticlinorium, composed essentially of the 1st and 3rd centuries. Different mining composition: conglomerates, sandstones, sodium plagioclase and hornblende, and fronts, extraction holes and blocks have slates and some lava, with leaves and smaller amounts of biotite, pyroxene and been preserved, as well as the marks left trunks fossils that constitute the lling of epidote, with medium sized crystals by various stone cutting tools. a continental basin, of Upper 34 arranged in an interlaced framework. Carboniferous to Permian age. Viar Basin: (22) Alluvial deposits (25) Mud flows (27) Lava flows (34) Upper Red Unit 28 29 32 The Viar Basin is one of the continental topographic (28) Volcanic chimneys (29) La Traviesa Necrópolis (32) Viar River Canyon depressions created after the formation of Sierra Norte The presence of breccias of fragments One of the largest necropolises of the The upper course of the Viar River has mountains, at the beginning of the transition towards a of host rocks and a matrix of volcanic Bronze Age (2,250 to 1,000 years before uvial canyon morphology, with new orogenic cycle, the Alpine Cycle. In these depressions, tuffs, and ne-grained pyroclastic rocks Christ) of the southwest of the Iberian alternating northwest-southeast and continental sediments were deposited over a long period of time, between the Upper and cinerites, indicate the existence of Peninsula, composed of a total of 29 northeast-southwest directions, although Carboniferous and Lower Triassic. a volcanic center with more than 15 cistas, individual burials of small the main direction of the river is The sediments of the Viar Basin are a mixture of conglomerates, sandstones, silts and vertical volcanic channels. dimensions, constituted by pits anked north-south; the river has taken advantage clays, with layers of lava and pyroclastic deposits. with at stones. of diverse Alpine faults. 35 37 38 39 (35) La Capitana Hill (37) Capas de Benalija (38) La Jarosa Granite Tors (39) Alluvial deposits in El Retortillo Reservoir Formation The maximum height of Granite tors landscape highly developed, Reddish color conglomerates of angular pebbles of different the Geopark, with 952 Cambrian sedimentary unit constituted due to atmospheric weathering of several sizes, which present polished surfaces with a bright patina meters of altitude, is a by greenish slates with some carbonates, granitic rocks, with abundant granite balls called "desert varnish", with interspersed levels of magnicent viewpoint of and small layers of sandstones and basic (called in this zone “porrillas”) and sandy coarse-grained sandstones. These deposits are located in the the landscape of the volcanic rocks. The sedimentation of valleys, where stand out the stone same structural depression as the Alanís - San Nicolás del Geopark, with alignments of steep mountains, narrow these materials took place in a deep accumulations. Puerto Basin. and deep river valleys and areas of soft plains. marine basin far from the coast. Depósito Legal: SE 1051-2019 Depósito Legal: EX-308 Relevant Geosites Geotourism map CO-7404 2 Guadalcanal marbled limestones 18 Roman Quarry of Los Covachos 3 Cerro del Hierro Natural Monument: Karst 21 Alanís-San Nicolás del Puerto Basin BA-149 of Sierra Norte de 4 Cerro del Hierro Natural Monument: Mine 22 Viar Basin: Alluvial deposits 5 Suture Zone: Amphibolites in Almadén de la Plata 25 Viar Basin: Mud ows Sevilla Geopark 6 Suture Zone: Pulo do Lobo Group 27 Viar Basin: Lava ows Fuente del Arco 7 El Chorro 28 Volcanic chimneys Embalse de Altarejos 8 Almadén de la Plata Granite Tors 29 La Traviesa Necrópolis 9 32 BA-018 El Real de la Jara Granite Tors Viar River Canyon SE-9100 10 El Pedroso Granite Tors 34 Viar Basin: Upper Red Unit 35 12 Viar Fault 35 La Capitana Hill United Nations Sierra Norte de Sevilla Educational, Scientific and UNESCO 13 Rivera del Huéznar Spring 37 Capas de Benalija Formation Cultural Organization Global Geoparks BA-110 14 Huesna Waterfalls 38 La Jarosa Granite Tors R í o15 Capas de Campoallá Formation 39 Alluvial deposits in El Retortillo Reservoir Sierra del Viento 16 Cazalla de la Sierra Diorite Guadalcanal Puebla BADAJOZ d e del Maestre SEVILLA Visitor centre SE-9101 O n z a Information point EX-318 A-433 SE-9102 Natural monument Trail beginning Rivera Alanís de Benalija CÓRDOBA Signposted trail Los Carros SEVILLA SE-8100 SE-7100 Embalse de El Pintado Parque Natural 2 Las Dehesas 21 Cascadas Sierra de Hornachuelos del Huesna 14 37 San Nicolás del Puerto Cascadas del 13 Huéznar SE-8101 15 La Lobera A-8200 SE-7101 El Real de la Jara 32 Embalse del Bembézar Río 3 El Castillo Viar Cerro CO-5400 A-5301 ! del Hierro SE-8102 9 El Rebollar Cazalla de La Sierra 4 Las Laderas Vía Verde de la S.Norte Las Navas 16 Molino del Corcho Rivera de Ciudadeja de la Concepción SE-7104 A-8202 Rivera SE-7102 HU-9116 Rivera de Río De Los Molinos 18 Embalse Huéznar A-8204 Ciudadeja SE-6405 de Cala de Almadén de la Plata 28 de Atalaya " Retortillo 29 La Traviesa 5 Pantano Los Castañares El Calvario 7 de la Herradura 6 22 A-8101 A-432 Rivera de Rivera Constantina Cortijo Berrocal 27 El Robledo Embalse del Retortillo A-8175 Las Rañas 39 8 El Pedroso A-452 # P.N. Sierra de Los Arrianales Aracena y La Mancha del Berrocal 10 Arroyo de Las Cañas Picos de Aroche SE-7103 HUELVA 25 CO-5310 38 Geological Legend SEVILLA N-630 Post-Hercynian sedimentary basins (Upper Carboniferous-Permian) Embalse del Huéznar A-455 SudportuguesePuebla de zone los (Silurian-Devonian) Infantes Suture Zone between Ossa-Morena and Sudportuguese zones SE-5405 Embalse de Melonares Ossa-Morena Zone (Ordovician-Devonian) SE-6100 Ossa-Morena Zone (Cambrian) A-66 Metamorphic rocks of Ossa-Morena Zone (Precambrian-Cambrian) 34 El Ronquillo Embalse de Cala 12 Plutonic rocks (Precambrian-Cambrian-Ordovician-Carboniferous) 0 2 4 6 8 km .