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Prospección de hidrocarburos en la plataforma continental de Asturias 阿斯图里亚斯大陆架的碳氢化合物勘探
Trabajos de Geologia Pub Date : 2002-12-31 DOI: 10.17811/TDG.23.2002.2-3
M. G. Claverol, J. Gallástegui
{"title":"Prospección de hidrocarburos en la plataforma continental de Asturias","authors":"M. G. Claverol, J. Gallástegui","doi":"10.17811/TDG.23.2002.2-3","DOIUrl":"https://doi.org/10.17811/TDG.23.2002.2-3","url":null,"abstract":"Oil and natural gas exploration in the asturian continental shelf started more than 30 years ago. Seismic surveying was profusely used and more than 2.000 km of seismic reflection profiles were acquired in different prospective campaigns. Two main reflectors “H” –Tertiary Cretaceous unconformity– and “K” –shaly level below the Santonian– were recognized in the profiles. The interpretation of several profiles allowed us to define the structure of the MesoTertiary basin that fills the asturian platform. More than 50 km. of rock were drilled in test wells in the platform between 1975 and 1985 and their main characteristics are also described in this paper. The first offshore well (“C-1”) was drilled in 1975 and showed positive results in Tertiary rocks. The results were satisfactory, given that oil and/or gas were found in more than half of the wells. The main reservoir rocks are in Cretaceous and Paleocene levels, and although Jurassic rocks were the main target, they were scarcely reached in the different prospective campaigns. Long and narrow E-W anticlinal folds are amongst the oil-bearing structures.","PeriodicalId":252745,"journal":{"name":"Trabajos de Geologia","volume":"29 Suppl 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124972869","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}
引用次数: 13
Características tecnológicas de las rocas ornamentales de Asturias 阿斯图里亚斯观赏岩石的技术特点
Trabajos de Geologia Pub Date : 2002-12-31 DOI: 10.17811/TDG.23.2002.5-6
L. M. S. D. Río, L. Calleja, I. Sarriá, V. G. R. D. Argandoña, A. R. Rey, F. Alonso
{"title":"Características tecnológicas de las rocas ornamentales de Asturias","authors":"L. M. S. D. Río, L. Calleja, I. Sarriá, V. G. R. D. Argandoña, A. R. Rey, F. Alonso","doi":"10.17811/TDG.23.2002.5-6","DOIUrl":"https://doi.org/10.17811/TDG.23.2002.5-6","url":null,"abstract":"Las ocho explotaciones de rocas ornamentales existentes en Asturias a comienzos de 2000 aprovechaban dos formaciones geologicas paleozoicas (Aman y Alba) y una mesozoica (Lastres). En las dos primeras se extraian calizas, mientras que en la tercera se explotaban areniscas. Aqui se presentan las caracteristicas petrograficas (textura, mineralogia, etc.) y fisico-mecanicas (densidad, porosidad, absorcion de agua, heladicidad, resistencias a la cristalizacion de sales, al choque, al desgaste, a la compresion uniaxial y a la flexion) de dichos materiales, con el fin de darlas a conocer en el sector de la Piedra Natural (no aparecen en los catalogos de rocas ornamentales espanolas) y facilitar informacion respecto a su utilizacion mas idonea. En base a los resultados obtenidos, las calizas, como roca ornamental, podrian ser utilizadas para cualquier fin, mientras que las areniscas podrian presentar, a largo plazo, algunas limitaciones en ambientes marinos y/o contaminados.","PeriodicalId":252745,"journal":{"name":"Trabajos de Geologia","volume":"727 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125820565","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}
引用次数: 7
Estratigrafía y estructura de la lámina tectónica del Para-autóctono y de su autóctono en el área de Chantada (Galicia, NO de España) Chantada地区(加利西亚，非西班牙)para - autoctono及其autoctono构造层的地层学和结构
Trabajos de Geologia Pub Date : 2002-12-31 DOI: 10.17811/TDG.23.2002.4-5
A. Marcos, S. L. Fúnez
{"title":"Estratigrafía y estructura de la lámina tectónica del Para-autóctono y de su autóctono en el área de Chantada (Galicia, NO de España)","authors":"A. Marcos, S. L. Fúnez","doi":"10.17811/TDG.23.2002.4-5","DOIUrl":"https://doi.org/10.17811/TDG.23.2002.4-5","url":null,"abstract":"Reviewing the geology of the variscan basement in the region between the Ordenes Complex and the Verin Syncline (Eastern Galicia) allows to establish more accurately the geometry of tectonic sheets below the allochthonous complexes in NW Iberia (the Paraautochthonous Sheet) and its autochthon (the Central-Iberian Zone). The emplacement of these units took place during the development of the Variscan Orogen as a consequence of the collision between Gondwana and Laurentia. In this work we present a geological map of the lower boundary of the Para-autochthonous Sheet in the study area and we establish a correlation of the rock sequence in the autochthonous with a comparable and better known stratigraphic sequence in the Ollo de Sapo Antiform within the Central-Iberian Zone. We suggest that the rocks previously named as the Santabaia Group correspond in fact to the Serie de los Cabos with the only difference that they include a volcano-sedimentary succession similar to the Ollo de Sapo Formation. The structural analysis of the geological map in the study area and its surrounding regions also allows to recognize the trace of several significant variscan shear zones.","PeriodicalId":252745,"journal":{"name":"Trabajos de Geologia","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133157254","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}
引用次数: 4
Los movimientos del terreno en las laderas del valle del río Caudal y la incidencia de las escombreras del carbón en los mismos 河流下游山谷斜坡上的地形运动和煤渣在这些斜坡上的发生率
Trabajos de Geologia Pub Date : 2002-12-31 DOI: 10.17811/TDG.23.2002.3-4
C. Fernández, M. Alonso, M. G. Claverol
{"title":"Los movimientos del terreno en las laderas del valle del río Caudal y la incidencia de las escombreras del carbón en los mismos","authors":"C. Fernández, M. Alonso, M. G. Claverol","doi":"10.17811/TDG.23.2002.3-4","DOIUrl":"https://doi.org/10.17811/TDG.23.2002.3-4","url":null,"abstract":"A geotechnical study of Caudal’s valley (Mieres) is presented in this work, including a geotechnical detailed map and paying special attention to the analysis of the movements of terrain in the slope domains. The more suitable technical treatments to the different phenomena from instability observed (slides, creep, etc.) are putting forward, as well as the recommended types of foundations based on the existing geotechnical conditions. Finally, the stability of the present coal dumps in the zone is analysed in detail, reflecting the main characteristics of each one of them, and the problem of slope instability that can be generated in the future as result of the closing of the mining working is discussed.","PeriodicalId":252745,"journal":{"name":"Trabajos de Geologia","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123645073","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}
引用次数: 2
Estructura cortical de la cordillera y margen continental cantábricos: perfiles ESCI-N 坎塔布里亚山脉和大陆边缘的皮质结构:ESCI-N剖面
Trabajos de Geologia Pub Date : 2000-12-31 DOI: 10.17811/TDG.22.2000.3-234
J. Gallástegui
{"title":"Estructura cortical de la cordillera y margen continental cantábricos: perfiles ESCI-N","authors":"J. Gallástegui","doi":"10.17811/TDG.22.2000.3-234","DOIUrl":"https://doi.org/10.17811/TDG.22.2000.3-234","url":null,"abstract":"The aim of this study is the N-S crustal structure of the Cantabrian Mountains and the North Iberian margin along a transect close to the 5°W meridian. The geological transect is based on all geological and geophysical data available, especially the onshore and offshore deep seismic reflection profiles ESCIN-2 and ESCIN-4. The structure of the orogen results from the superposition of the Alpine deformation, related to the partial closure of the Bay of Biscay during the Tertiary, on the Variscan crust. The N-S structure is that of an orogenic prism, with opposite vergences at both ends where two foreland basins developed: the Duero Basin in the S and the North Iberian platform basin in the N. The lower crust from the North Iberian margin slided southwards along a detachment and indented between the upper and middle Iberian crust. This forced the delamination and northwards underthusting of the middle and lower Iberian crust. As a result, the crust thickened under the Cantabrian Mountains and a 55 km thick crustal root developed. Simultaneously, the Cantabrian Mountains were uplifted by several north vergent crustal thrusts rooted at 14-15 km deep. Shortening of the margin during the Tertiary has been estimated in 96 km.","PeriodicalId":252745,"journal":{"name":"Trabajos de Geologia","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116183413","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}
引用次数: 100
Aplicación de la Tomografía Axial Computerizada de Rayos X al estudio de materiales rocosos X射线计算机轴向断层摄影术在岩石材料研究中的应用
Trabajos de Geologia Pub Date : 1999-12-31 DOI: 10.17811/TDG.21.1999.333-339
V. G. R. D. Argandoña, L. Calleja, L. M. S. D. Río, A. Rodríguez-Rey, C. Celorio, J. Llavona
{"title":"Aplicación de la Tomografía Axial Computerizada de Rayos X al estudio de materiales rocosos","authors":"V. G. R. D. Argandoña, L. Calleja, L. M. S. D. Río, A. Rodríguez-Rey, C. Celorio, J. Llavona","doi":"10.17811/TDG.21.1999.333-339","DOIUrl":"https://doi.org/10.17811/TDG.21.1999.333-339","url":null,"abstract":"Samples of the Laspra dolomite used as a building material in the Cathedral of Oviedo, have been subjected to freezing-thawing cycles, with the aim of assessing the applicability of XRay computed tomography to the study of the textural characteristics of rocks and the inner damage due to weathering processes. The samples have been externally observed by binocular magnifying microscope after each performed cycle, and fissures were visible in the fourth cycle. The XRay tomography has provided a precise information of the developed fractographic network inside the specimens, this being associated to the boundary between two texturally different zones. Due to the “Non-destructive” character of the X-ray tomography, its utility in the inner study of rock materials has been assessed, and can be used not only to detect fissures inside the rock, but to know their distribution and development in relation to the rock texture.","PeriodicalId":252745,"journal":{"name":"Trabajos de Geologia","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116822700","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}
引用次数: 0
Terebrátulidos (Braquiópodos) del Emsiense superior de Colle (Sabero, León, N de España) 科勒上埃姆西亚(Sabero, leon，西班牙北部)的兽脚亚目(腕足类)
Trabajos de Geologia Pub Date : 1999-12-31 DOI: 10.17811/TDG.21.1999.159-177
G. García-Alcalde
{"title":"Terebrátulidos (Braquiópodos) del Emsiense superior de Colle (Sabero, León, N de España)","authors":"G. García-Alcalde","doi":"10.17811/TDG.21.1999.159-177","DOIUrl":"https://doi.org/10.17811/TDG.21.1999.159-177","url":null,"abstract":"Se describen, a grandes rasgos, las condiciones paleoecologicas de la cuenca devonica del area de Colle (Sabero, Leon), durante el Emsiense. Se revisa la fauna de braquiopodos terebratulidos del Emsiense Superior de dicha localidad. Se proponen un nuevo genero Devonix, y dos nuevas especies: Devonix virgo y Cryptonella truyolsi. Se analiza el estatuto taxonomico de Cimicinellidae y de Cimicinella Schmidt y se rechaza de la familia al genero Cimicinoides Anderson, Boucot and Johnson, con bucle braquial axial y cardinalio muy diferentes de los de Cimicinella. C. schulzi (Verneuil) y C. loxogonia (Beclard), son estudiadas e ilustradas y se proponen lectotipos para ambas.","PeriodicalId":252745,"journal":{"name":"Trabajos de Geologia","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132211877","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}
引用次数: 7
El límite inferior de la laguna estratigráfica intradevónica en Herrera del Duque (Zona Centroibérica) Herrera del Duque(中伊比利亚带)潮内地层泻湖下界
Trabajos de Geologia Pub Date : 1999-12-31 DOI: 10.17811/TDG.21.1999.253-265
M. V. P. Alonso
{"title":"El límite inferior de la laguna estratigráfica intradevónica en Herrera del Duque (Zona Centroibérica)","authors":"M. V. P. Alonso","doi":"10.17811/TDG.21.1999.253-265","DOIUrl":"https://doi.org/10.17811/TDG.21.1999.253-265","url":null,"abstract":"In the Herrera del Duque syncline, there is a large stratigraphic gap in the Middle Devonian that is located betweeen two lithostratigraphic units: Garcia de Sola unit, and Abulagar Fm. Although they show lithological similarities, they are well differentiated. The Garcia de Sola unit is described and informally established for the first time in this paper. It is the highest member of the Herrera Fm in the Herrera del Duque syncline. The more characteristic outcrop (“La Isla” section) is composed of several beds of quartzites and quartzitic sandstones with abundant iron oxide. This unit and the underlying one (upper member of the Herrera Fm.) have a paleontological record characteristic at least of an uppermost Emsian age for the beginning of the hiatus.The most probable cause of the hiatus is an emersion, as shown by the lithology of these units. Some brachiopods coming from these materials are interesting from the paleobiogeographic and biostratigraphic points of view; they are briefly described and figured.","PeriodicalId":252745,"journal":{"name":"Trabajos de Geologia","volume":"427 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133337733","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}
引用次数: 0
Geomorfología fluvial en la cabecera del Río Nalón (Cordillera Cantábrica, Noroeste de España) nalon河源头的河流地貌(坎塔布里亚山脉，西班牙西北部)
Trabajos de Geologia Pub Date : 1999-12-31 DOI: 10.17811/TDG.21.1999.189-201
M. J. Sanchez
{"title":"Geomorfología fluvial en la cabecera del Río Nalón (Cordillera Cantábrica, Noroeste de España)","authors":"M. J. Sanchez","doi":"10.17811/TDG.21.1999.189-201","DOIUrl":"https://doi.org/10.17811/TDG.21.1999.189-201","url":null,"abstract":"La cabecera del rio Nalon muestra valles fluviales con un perfil longitudinal nivelado por debajo de los 950-650 m, tres niveles de terrazas (T sub 1, 30 m; T sub 2, 10 m; T sub 3, 3-4 m) y la llanura aluvial. La red hidrografica, de orden 6, cumple los presupuestos teoricos de Horton; no existe una correspondencia entre el valor de los parametros de relieve y el de la integral hipsometrica (39%), lo que pone en evidencia la limitacion de] empleo de esta ultima; los parametros geometricos sugieren una rapida respuesta de la cuenca frente a las precipitaciones y el bajo valor de la densidad de drenaje (2,62 km / km2 ) esta en consonancia con las caracteristicas fisicas de la cuenca. La morfologia fluvial esta condicionada por la variedad litologica del sustrato paleozoico; por la influencia de la tectonica hercinica y alpina y, por ultimo, por la evolucion cuaternaria de la zona, para cuya valoracion adecuada faltan todavia datos de caracter regional","PeriodicalId":252745,"journal":{"name":"Trabajos de Geologia","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133710447","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}
引用次数: 9
Metamorfismo de bajo grado: ¿diferencias en escala o diferencias en grado metamórfico? 低级变质:尺度差异还是变质程度差异?
Trabajos de Geologia Pub Date : 1999-12-31 DOI: 10.17811/TDG.21.1999.61-67
C. Brime
{"title":"Metamorfismo de bajo grado: ¿diferencias en escala o diferencias en grado metamórfico?","authors":"C. Brime","doi":"10.17811/TDG.21.1999.61-67","DOIUrl":"https://doi.org/10.17811/TDG.21.1999.61-67","url":null,"abstract":"El estudio comparativo de la cristalinidad de la illita calibrada en las escalas Kubler y CIS realizado en el presente articulo pone en evidencia las diferencias existentes entre los valores limite de la anquizona para ambas escalas. La adopcion de la escala CIS para la determinacion de la cristalinidad requiere la re-definicion de los limites de la anquizona para esta escala, que pasarian a ser de 0,59 y 0,33o ∆2θ CuKα.","PeriodicalId":252745,"journal":{"name":"Trabajos de Geologia","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115561804","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}
引用次数: 7
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