Journal of iberian geology: an international publication of earth sciences最新文献

{"title":"Tectonism and vulcanicity of the Permocarboniferous Basin and Range Province of Western Europe.","authors":"V. Lorenz","doi":"10.5209/REV_CGIB.1977.V4.2874","DOIUrl":"https://doi.org/10.5209/REV_CGIB.1977.V4.2874","url":null,"abstract":"During the Carboniferousdic elongatedSouth EuropePlate was bounded by two fold beltswhich migratedaway from a centralcontinentalridge, pointing to two subductionzonesalong the NW and SE ma¿rginsof South Europe retreatingocean-wards.Due to releaseof abondantwater during subduetion, dehydrationand probablepartial melting of former oceaniccrust at the two subductionzones,one or severalupper mantle diapirs formed. Ríse of this hot upper mantle material causedwidespreadpartial melting in the lower crust of SouthEuropeandhigh temperature-lowpressuremetamorphism,and is believed to have reducedthe thickness and rigidity of the South Europe Plate considerably. Subductionof the Mid-Europeanoceancrust northwestof South Europe finally lcd to collision with North America-Europeand subduction of the Tethys oceancrust lcd to collision of South Europewith Africa in the southwest. Both collisions terminatedthe orogenicactivity at the sites of the fold bites. Approaching North Amcrica-EuropeandAfrica, South Europecollided with the irregulary rifted continental margins of the two adjacent plates. Enabledto do so by its reducedrigidity the South Europe Plate consequently deformed in orderto fit the irregularitiesof the adjacentcontinentalmargins. The originally presumablecollinearstructuresof South Europewere distorted and through rotations and translationsa number of subplatesformed separated from cach other by major wrench faults. The late Hercyniangeodynamic history of the various subplatesdevelopedalong similar paths. The hot uppcr mantle diapir causedregional uplift of the crust of South Europe,retreal of the seaand extensiveerosion.In additionlateral spreading of the diapir lcd lo regional crustal extensionand formation of intermontane graben-likebasins.Crustal spreadingwas initiated in the central continental ridge in uppermostVisean time xvhile simultaneouslyin the northwest and southeastcompressivestressregimeswere maintainedbecauseof the continued activity of the subductionzones. Shortly afterwards the firsí basaltic","PeriodicalId":110220,"journal":{"name":"Journal of iberian geology: an international publication of earth sciences","volume":"168 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114748710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nuevos datos sobre la estratigrafía, paleontología y procedencia paleogeográfica del Triásico de las escamas del Corredor del Boyar (Cordillera Bética Occidental)","authors":"N. Porta, Ana Márquez-Aliaga, Agustín Martín-algarra","doi":"10.5209/REV_CGIB.1995.V19.2567","DOIUrl":"https://doi.org/10.5209/REV_CGIB.1995.V19.2567","url":null,"abstract":"The Upper Triassic of the Boyar Corridor (External zones, Western Betic Cordillera) is constituted by a lower carbonate unit and an upper clayey-sandy unit. Both units provide Upper Carnian palynological associations. Besides, the lower unit contains associations of bivalves similar to those of the alpine «Raibler Schichten». These lithostratigraphic units were deposited in very shallow marine (subtidal) and coastal plain environments (peritidal in a broad sense), that constituted the internal areas of a marine shelf that evolved from mainly carbonatic to siliciclastic along the Uper Triassic. The Triassic of the Boyar Corridor is thinner than the typical Median Subbetic Upper Triassic, but it contains much less clays and evaporites and more carbonate marine intercalations than the former. This fact as well as its tectonic position along the contact between the Median Subbetic and the Penibetie, allow to locate it in the palaeogeographic transition between both domains.","PeriodicalId":110220,"journal":{"name":"Journal of iberian geology: an international publication of earth sciences","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114830229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CARACTERíSTICAS CERAMICAS DE ALGUNAS ARCILLAS DEL CRETACICO INFERIOR DEL MAESTRAZGO","authors":"J. B. Cuairan, J. Enrique","doi":"10.5209/REV_CGIB.1982.V8.2792","DOIUrl":"https://doi.org/10.5209/REV_CGIB.1982.V8.2792","url":null,"abstract":"","PeriodicalId":110220,"journal":{"name":"Journal of iberian geology: an international publication of earth sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115130119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Las unidades carbonatadas y evaporíticas del tránsito Triásico-Jurásico en la región de Lécera (Zaragoza, España)","authors":"J. J. Fernández, A. Goy","doi":"10.5209/REV_CGIB.1999.V25.2459","DOIUrl":"https://doi.org/10.5209/REV_CGIB.1999.V25.2459","url":null,"abstract":"Uno de los principales retos para la estratigrafia de los materiales del MesozoIco de la Cuenca Iberica es el reconocimiento del limite entre el Triasico y el Jurasico. Los datos del subsuelo proporcionados por los sondeos de hidrocarburos perforados en las panes no aflorantes de la cuenca muestran la presencia de una unidad evaporitica situada entre la Fm. Imon y la Fm. Cuevas Labradas. Estas evaporitas se encuentran normalmente disueltas en superficie, en donde esta representada unicamente por materiales carbonatados no disueltos que constituyen la Fm. Camiolas de Cortes de Tajuna. Sin embargo, esta sucesion evaporitica aflora en la region de Lecera, lo cual ha permitido estudiar en superficie los materiales evaporiticos de la Fm. Yesos, anhidritas y carbonatos de Lecera (Gomez y Goy, 1998). Los datos palinologicos confirman una edad Camiense para la facies Keuper y una edad Hettangiense para las Carniolas, situadas en este afloramiento por encima de la Fm. Lecera, mientras que los datos regionales indican una edad Retiense para los carbonatos de la Fm. Imon. Todos estos datos sugieren que el limite entre el Triasico y el Jurasico se encuentra dentro de la Fm. Lecera.","PeriodicalId":110220,"journal":{"name":"Journal of iberian geology: an international publication of earth sciences","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115149435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evolución de dos sistemas continentales en la Cubeta de Aguilón (Cretácico Inferior): Interrelación sedimentaria entre depósitos aluviales y lacustres y su control tectónico.","authors":"A. Meléndez, A. R. Soria, Carlos L. Liesa, N. Meléndez","doi":"10.5209/REV_CGIB.1997.V22.2520","DOIUrl":"https://doi.org/10.5209/REV_CGIB.1997.V22.2520","url":null,"abstract":"Las autores de este trabajo quieren agradecer a Angel Cortes y al Dr. Antonio Casas la revision y discusion del modelo tectonico y las ideas sugeridas a este respecto. Este trabajo ha sido financiado por los proyectos PB92-0862-C02-02 y PBOS-1218 de la DGICYT.","PeriodicalId":110220,"journal":{"name":"Journal of iberian geology: an international publication of earth sciences","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115290057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fan-delta slope deposits and sequences in the Murcia-Carrasco y Basin (Late Neogene, SE. Spain)","authors":"C. Dabrio, M. Polo","doi":"10.5209/REV_CGIB.1991.V15.2620","DOIUrl":"https://doi.org/10.5209/REV_CGIB.1991.V15.2620","url":null,"abstract":"Tortonian sedimeratation isa dio Betics records a major tectonie evont, tite Iargost orogenic deformation of dio cordillera, suporimposed on tite largorscale, titird-orderTB 3.2 cycle ofeustatie sea-lovelcitange. A ftrst interprotation of the Sequonce Stratigraplty of tite Murcia-Carrascoy basin is prosented. Uplift of positivo reliefs aronrad tite basin favaured tite depositiora of titick successions of conglomoratos evidoncing c?mnibalism. Facies associations witness doposition on tite steep siopo of a basin, fod by mauntain rivors titat supplied coarso sedimesats to tite basin. Tite resulting fara delta is comparable in many respocts to titoso describod isa fjords, and a dopositional model is presonted.","PeriodicalId":110220,"journal":{"name":"Journal of iberian geology: an international publication of earth sciences","volume":"179 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123737519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correlación y evolución paleogeográfica del Cretácico al norte y sur del Sistema Central.","authors":"A. Alonso, J. Mas","doi":"10.5209/REV_CGIB.1982.V8.2750","DOIUrl":"https://doi.org/10.5209/REV_CGIB.1982.V8.2750","url":null,"abstract":"This paper compares the facies and paleogeographic events of the cretacic outcrops, situated in tite Nortiten and Southern parts of the Spanisit Central Mountain Chain in arder to obtain a better comprehension of the historical evolution in the southern margin of the Cretaceous Nortit Basin (Meseta Norcastellana) Besides it wi]l provide some ideas about tite relations between this basin and tite Iberic one. It correlates tite best developed sections of the Upper Cretaceous in tite North and tite South, and some sedimentological, paleotectonical and paleogeo~raphical conclusions are obiained: They also exist two sedimentary cycles (Cenomanian-Turonian Cycle and Senonian Cycle) with transgresive regressive character, like in the rest of the basin. It is possible to recognize tite titresholds of NW-SE direction whicit condition the characteristics of sedimentation and tite paleogeopraphic direction -NNE-SSW which determines tite shape of tite basin. fluringtite second cycle (Senobian) the h6iiie~neization of tite conditions in tite basin is produced and it is not reflected anymore tite paleogeographic thresholds with tite direction NNE-SSW witich was very important during the first cycle.","PeriodicalId":110220,"journal":{"name":"Journal of iberian geology: an international publication of earth sciences","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125039303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Paleontología y Paleoecología de los yacimientos fosilíferos del Muschelkalk Superior entre Alcover y Mont-Ral (Montañas de Prades, provincia de Tarragona)","authors":"L. V. Boada, J. F. Villalta, M. Cerdà","doi":"10.5209/REV_CGIB.1977.V4.2894","DOIUrl":"https://doi.org/10.5209/REV_CGIB.1977.V4.2894","url":null,"abstract":"The available paleontological colection shows a clear predominanceof nektonic aríd planktonic organisms: fishes, reptiles, cephalopods,swimming decapoda,aud coelenterea(79,6 por lOO of tbe total numberof individua). Nevertheless,benthonic organisrusare well representedwith limulidae, decapoda, holothuridae, crinoidea aríd brachipods,with a remarkable semiterrestrial reptile, an insect wing and several terrestrial planta Important taxonomic grups are absentsuch as algae, sponges,corals, bryozoans,gas(*> MuseoGeológicodcl Seminariode Barcelona,Sección de Biocstratigrafíadel C.S.I.C. (*1 Secciónde Ecologíadel Cuaternario,del Instituto J. Almera del C,S.I.C. (~) Secciónde Petrologíadel Instituto JaimeAlmera del LS.S.I.C.","PeriodicalId":110220,"journal":{"name":"Journal of iberian geology: an international publication of earth sciences","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123015841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ambientes de sedimentación, procedencia y diagénesis de depósitos de ríos meandriformes desarrollados sobre playa-lakes. Mioceno de la Cuenca de Loranca (Provincias de Cuenca y Guadalajara)","authors":"J. A. Mocoroa, M. D. Molina, A. Tortosa","doi":"10.5209/REV_CGIB.1996.V21.2534","DOIUrl":"https://doi.org/10.5209/REV_CGIB.1996.V21.2534","url":null,"abstract":"Las sucesiones estratigraficas del Mioceno inferior en la cuenca de Loranca \u0000(sistemas deposicionales de Tortola, Villalba de la Sierra y Valdeganga) \u0000presentan depositos interestratificados de playa-lake y de rios meandriformes. \u0000En este trabajo se estudia un afloramiento donde se encuentra esta asociacion \u0000de materiales, localizado en el valle del rio Mayor y que corresponde \u0000a la parte superior de la sucesion estratigrafica del sistema deposicional de \u0000Tortola. Los depositos salinos se caracterizan por la presencia de facies evaporiticas \u0000intersticiales formadas en llanuras arcillosas salinas y en ambientes \u0000lacustres marginales. El depocentro de los lagos salinos se encontraba en el \u0000norte de los afloramientos analizados. Los sistemas fluviales meandriformes \u0000se encajaron en los sedimentos de la llanura arcillosa salina, desarrollando \u0000depositos de barras' arenosas de meandro, rellenos de canales abandonados \u0000(clay plugs), depositos de inundacion y de desbordamiento. La reconstruccion \u0000tridimensional de la arquitectura de los lobulos de meandro ha permitido la \u0000cuantificacion de la conexion de los cuerpos arenosos, asi como la estimacion \u0000de las variables paleohidromorfologicas de los canales. \u0000En las areniscas los procesos diageneticos tempranos fueron muy intensos, \u0000especialmente los relacionados con la cementacion, consistente en envueltas \u0000y mosaicos dolomiticos y en cristales poiquilotopicos de yeso. El origen \u0000de estos cementos se relaciona «pn cambios en el nivel de base y en el contraste \u0000entre la composicion quimica salina de las aguas freaticas y las aguas \u0000mas diluidas de los canales fluviales. Los cementos dolomiticos se formaron \u0000mientras los canales eran activos, probablemente por un proceso de mezcla de aguas. El cemento de yeso se formo posteriormente, cuando un ascenso \u0000del nivel de base produjo la inactividad de los sistemas fluviales y la formacion \u0000de una nueva llanura arcillosa salina.","PeriodicalId":110220,"journal":{"name":"Journal of iberian geology: an international publication of earth sciences","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122462100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"«Metacronía del \"ammonítico rosso\" en la zona subbética (Sector Central)».","authors":"P. Rivas, A. Linares","doi":"10.5209/REV_CGIB.1971.V2.2957","DOIUrl":"https://doi.org/10.5209/REV_CGIB.1971.V2.2957","url":null,"abstract":"espanolEl «Ammonitico rosso» de edad liasica, esta representado en el Sector Central de la zona Subbetica (transversales de Loja a Iznalloz, prov. de Granada) por numerosos afloramientos, la mayor parte de ellos, ricos en Ammonites. Se ha hecho el estudio de aquellos afloramientos, que consideramos mas representativos, mediante el levantamiento de columnas estratigraficas en las que se han establecido zonas y subzonas paleontologicas, de acuerdo con las condiciones de los yacimientos. Se ha podido comprobar la metacronia de la facies «Ammonitico rosso», del Surco sedimentario Subbetico, incluso entre series poco distanciadas actualmente. Ciertas series presentan fuerte condensacion en algunos niveles lo que dificulta el reconocimiento de subzonas e incluso de zonas. Se han diferenciado dos tipos de facies «Ammonitico rosso»: una predominantemente margosa y la otra margosa tambien, pero con intercalaciones calizas. Las caracteristicas litologicas y paleontologicas de ambas facies han permitido el establecimiento de una fina bioestratigrafia y correlaciones dentro de la cuenca. EnglishLiassic «Ammonitico rosso» is represented in the Central Sector of Subbetic Zone (transversal of Loja-Iznalloz, prov. de Granada) by many outcrops, most of them rich on Ammonites. The study of considered most representative of these outcrops has been made, by means of stratigraphic sections in which palacontological zones and subzones are established accordingly with the outcrop’s conditions. Metacronie of «Ammonitico rosso» facies from subbetic sedimentary furrow has been proved, herein to actually little distant series. Some series present a strong condensation in a few levels difficulting the recognition of subzones and zones. Two tipes of «Ammonitico rosso» facies have been differenciated the first one mostly marly and the second one, also marly, but with limestone intercalations. Both lithological and palaeotological characteristics allowed the establishement of a fine stratigraphy and correlations into the basin. francaisL’«Ammonitico Rosso» d’âge liasique est represente dans le secteur central de la zone subbetique (transversale Loja-Iznalloz, prov. de Granada) par de nombreux affleurements, la plupart riches en Ammonites.´ Les affleurements qui ont paru les plus representatifs ont ete etudies. Des series stratigraphiques ont ete etablies avec des zones et sous-zones paleontologiques. Nous avons pu constater un âge plus recent des facies «Ammonitico Rosso» dans le sillon sedimentaire subbetique, meme entre des series peu eloignees actuelment. Certaines series presentent deux types de facies «Ammonitico Rosso» l'une essentiellement marneuse, l'autre egalement marneuse avec des intercalations calcaires. Les caracteristiques lithologiques et paleontolagiques de ces facies ont permis d’etablir une fine biostratigraphie et des correlations dans le bassin. DeutschDer «Ammonitico Rosso» aus dem Lias ist im Zentrum der subbetischen Zone (Querschnitte Loja-Iznalloz, Gra","PeriodicalId":110220,"journal":{"name":"Journal of iberian geology: an international publication of earth sciences","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122880043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}