Pub Date : 2022-03-01DOI: 10.21701/bolgeomin/133.1/009
José Antonio Domínguez Sánchez, Silvia Rosado Piqueras, Miguel Mejías Moreno, B. J. Ballesteros Navarro
The Maestrazgo is a karst aquifer of more than 2400 km2 that occupies the northern half of the province of Castellón. Its main discharge area is in the coastal sierra of Irta, between the towns of Alcocebre and Peñíscola. On the coastline of this carbonate elevation, there are several springs, permanent (Playa de las Fuentes Centro, Torre Badum y Font de Dins) and occasional (Playa del Carregador, Playa de las Fuentes Sur y Norte, Playa del Pebret y Playa del Russo), which can be grouped into different types depending on their chemical characteristics. This diversity is due to underground flow through preferential circulation conduits that may be more or less interconnected with each other and more or less affected by marine waters. Significant events of precipitation, on a local and / or regional scale, in addition to causing the appearance of occasional springs, temporarily modify the hydrochemistry of permanent upwellings. The springs of Playa de las Fuentes Centro, Torre Badum and Playa del Carregador rapidly reduce their saline content, while the springs of Playa de las Fuentes Sur, Playa del Pebret and Playa del Russo, respond with a piston effect and initially, the more saline waters that occupy the conduits of the environment near the springs are drained until they are replaced by those of a continental nature. Finally, the Font de Dins spring drains through channels without contact with marine waters, so it does not undergo notable alterations in its composition due to their influence, although its relationship with the detrital aquifer of Vinarós-Peñíscola alters its usual hydrochemistry.
Maestrazgo是一个岩溶含水层，面积超过2400平方公里，位于卡斯泰隆省的北半部。其主要排放区位于阿尔科塞布雷镇和佩尼斯科拉镇之间的伊尔塔海岸山脉。在这个碳酸盐岩高地的海岸线上，有几个泉水，永久性的（中央富恩特斯湾、巴杜姆河和丁河）和偶尔的（卡雷加多尔湾、南富恩特斯河和北富恩特斯湖、圆石河和鲁索河），根据其化学特征可分为不同类型。这种多样性是由于通过优先循环管道的地下水流，这些管道可能或多或少地相互连接，或多或少地受到海水的影响。局部和/或区域范围内的重大降水事件，除了偶尔出现泉水外，还暂时改变了永久上升流的水化学性质。富恩特斯中心海滩、托雷巴杜姆海滩和卡雷加多尔海滩的泉水迅速降低了含盐量，而南富恩特斯海滩、圆石海滩和鲁索海滩的泉水则产生活塞效应，最初，占据泉水附近环境管道的盐水越多，就会被排出，直到它们被大陆性质的盐水所取代。最后，Font de Dins泉通过通道排水，不与海水接触，因此其成分不会因其影响而发生显著变化，尽管其与Vinarós-Peñíscola碎屑含水层的关系改变了其通常的水化学。
{"title":"Hydrodynamic of the coastal springs of the Sierra de Irta. Maestrazgo Aquifer (Castellon)","authors":"José Antonio Domínguez Sánchez, Silvia Rosado Piqueras, Miguel Mejías Moreno, B. J. Ballesteros Navarro","doi":"10.21701/bolgeomin/133.1/009","DOIUrl":"https://doi.org/10.21701/bolgeomin/133.1/009","url":null,"abstract":"The Maestrazgo is a karst aquifer of more than 2400 km2 that occupies the northern half of the province of Castellón. Its main discharge area is in the coastal sierra of Irta, between the towns of Alcocebre and Peñíscola. On the coastline of this carbonate elevation, there are several springs, permanent (Playa de las Fuentes Centro, Torre Badum y Font de Dins) and occasional (Playa del Carregador, Playa de las Fuentes Sur y Norte, Playa del Pebret y Playa del Russo), which can be grouped into different types depending on their chemical characteristics. This diversity is due to underground flow through preferential circulation conduits that may be more or less interconnected with each other and more or less affected by marine waters. Significant events of precipitation, on a local and / or regional scale, in addition to causing the appearance of occasional springs, temporarily modify the hydrochemistry of permanent upwellings. The springs of Playa de las Fuentes Centro, Torre Badum and Playa del Carregador rapidly reduce their saline content, while the springs of Playa de las Fuentes Sur, Playa del Pebret and Playa del Russo, respond with a piston effect and initially, the more saline waters that occupy the conduits of the environment near the springs are drained until they are replaced by those of a continental nature. Finally, the Font de Dins spring drains through channels without contact with marine waters, so it does not undergo notable alterations in its composition due to their influence, although its relationship with the detrital aquifer of Vinarós-Peñíscola alters its usual hydrochemistry.","PeriodicalId":45458,"journal":{"name":"BOLETIN GEOLOGICO Y MINERO","volume":" ","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47039455","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}
Pub Date : 2022-03-01DOI: 10.21701/bolgeomin/133.1/003
M. Himi, G. Deidda, Adil Salhi, Jamal Eddin Stitou-El Messari, A. Sendrós, L. Rivero, R. Lovera, A. Casas-Ponsatí
Groundwater is a fundamental and strategic resource for water supply of coastal areas, especially in the Mediterranean basin where the irregularity of precipitation, both seasonally and year-on-year, put at risk the availability of surface water in the rivers, which go from being dry for long periods to causing torrential discharges. In particular, if the exploitation of coastal aquifers is not properly managed and the quality of groundwater is not monitored regularly, important sectors of the aquifer may be affected by saltwater intrusion, and cause the abandonment of the wells. Geophysical methods are a very effective complement to provide indirect information on groundwater salinity in areas of the aquifer where wells or piezometers are not available for sampling. This study presents the results obtained from the application of different geophysical methods in the coastal aquifer of Oued Laou (Morocco) as a complement to hydrochemical data. Four geophysical methods, two electrical: vertical electrical sounding and electrical resistivity tomography, and two electromagnetic: frequency domain EM and time domain EM sounding. The comparative analysis of the results obtained by each method has made it possible to assess the coherence and complementarity of each method, as well as their corresponding advantages and limitations in terms of resolution and cost-effectiveness.
{"title":"Comparative study of saltwater intrusion in coastal aquifers: application to the aquifer of Oued Laou (Morocco)","authors":"M. Himi, G. Deidda, Adil Salhi, Jamal Eddin Stitou-El Messari, A. Sendrós, L. Rivero, R. Lovera, A. Casas-Ponsatí","doi":"10.21701/bolgeomin/133.1/003","DOIUrl":"https://doi.org/10.21701/bolgeomin/133.1/003","url":null,"abstract":"Groundwater is a fundamental and strategic resource for water supply of coastal areas, especially in the Mediterranean basin where the irregularity of precipitation, both seasonally and year-on-year, put at risk the availability of surface water in the rivers, which go from being dry for long periods to causing torrential discharges. In particular, if the exploitation of coastal aquifers is not properly managed and the quality of groundwater is not monitored regularly, important sectors of the aquifer may be affected by saltwater intrusion, and cause the abandonment of the wells. Geophysical methods are a very effective complement to provide indirect information on groundwater salinity in areas of the aquifer where wells or piezometers are not available for sampling. This study presents the results obtained from the application of different geophysical methods in the coastal aquifer of Oued Laou (Morocco) as a complement to hydrochemical data. Four geophysical methods, two electrical: vertical electrical sounding and electrical resistivity tomography, and two electromagnetic: frequency domain EM and time domain EM sounding. The comparative analysis of the results obtained by each method has made it possible to assess the coherence and complementarity of each method, as well as their corresponding advantages and limitations in terms of resolution and cost-effectiveness.","PeriodicalId":45458,"journal":{"name":"BOLETIN GEOLOGICO Y MINERO","volume":" ","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49010260","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}
Pub Date : 2022-03-01DOI: 10.21701/bolgeomin/133.1/012
M. Calvache, A. M. Blanco-Coronas, C. Duque, M. López-Chicano, J. P. Sánchez-Úbeda
Coastal aquifers are frequently complex systems with highly heterogeneous geological characteristics, specific flow patterns, presence of fluids with different densities, high risk of contamination both by salinization and by other pollutants, and highly modified by anthropic activity. Given this situation, numerical modeling becomes the most appropriate tool to determine the potential impact of global change on marine intrusion in this kind of aquifers. The mathematical models traditionally used in coastal aquifers have been those of flow and mass transport with variable density, which allow obtaining a distribution of salinities in the aquifer and reproducing the flow pattern in the area of discharge to the sea. In addition to these models, another type of numerical modeling can be applied that could also provide information on specific aspects of this type of aquifers. The study of the Motril-Salobreña coastal aquifer shows, for example, how heat transport models allow quantifying the recharge that occurs from rivers that frequently interact with coastal aquifers; as well as the age transport models provide data on the preferential groundwater circulation paths and its residence time, very relevant information in these frequently heterogeneous and anisotropic aquifers. Future challenges are directed towards determining the effects of sea level rise on marine intrusion and establishing the degree of equilibrium of the freshwater-saltwater contact with the current situation.
{"title":"New challenges in the study of coastal aquifers from numerical modeling. The case of the Motril-Salobreña aquifer","authors":"M. Calvache, A. M. Blanco-Coronas, C. Duque, M. López-Chicano, J. P. Sánchez-Úbeda","doi":"10.21701/bolgeomin/133.1/012","DOIUrl":"https://doi.org/10.21701/bolgeomin/133.1/012","url":null,"abstract":"Coastal aquifers are frequently complex systems with highly heterogeneous geological characteristics, specific flow patterns, presence of fluids with different densities, high risk of contamination both by salinization and by other pollutants, and highly modified by anthropic activity. Given this situation, numerical modeling becomes the most appropriate tool to determine the potential impact of global change on marine intrusion in this kind of aquifers. The mathematical models traditionally used in coastal aquifers have been those of flow and mass transport with variable density, which allow obtaining a distribution of salinities in the aquifer and reproducing the flow pattern in the area of discharge to the sea. In addition to these models, another type of numerical modeling can be applied that could also provide information on specific aspects of this type of aquifers. The study of the Motril-Salobreña coastal aquifer shows, for example, how heat transport models allow quantifying the recharge that occurs from rivers that frequently interact with coastal aquifers; as well as the age transport models provide data on the preferential groundwater circulation paths and its residence time, very relevant information in these frequently heterogeneous and anisotropic aquifers. Future challenges are directed towards determining the effects of sea level rise on marine intrusion and establishing the degree of equilibrium of the freshwater-saltwater contact with the current situation.","PeriodicalId":45458,"journal":{"name":"BOLETIN GEOLOGICO Y MINERO","volume":" ","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49101363","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}
Pub Date : 2022-03-01DOI: 10.21701/bolgeomin/133.1/002
C. Duque, R. Meyer, T. Sonnenborg
The studies investigating saltwater intrusion in Denmark have been reviewed to identify the main characteristics and features that have an impact on coastal aquifers interacting with the sea. Traditionally, in regions with wet climate, saltwater intrusion is not appointed as a frequent problem and it is more commonly linked to areas affected by water scarcity. Nevertheless, multiple factors that can induce the salinization of coastal aquifers have been found for Denmark such as the presence of coastal drained lowlands with the water table below the sea level or karstic features and buried valleys in carbonate and detrital systems respectively that can act as preferential flow paths for saline water. Eustatic changes have been also played an important role in the salinization of aquifers, in deep aquifers saline ancient connate water can be identified and in small islands, a delicate equilibrium of freshwater lenses is generated over saline water. As the water supply in this country depends almost exclusively on groundwater, saltwater intrusion can jeopardize fresh groundwater resources in coastal areas. An overview of the cases already studied, questions about the magnitude of these issues and the future perspectives with climate changes are discussed to put into context what is already known and what are the next challenges.
{"title":"Saltwater intrusion in Denmark","authors":"C. Duque, R. Meyer, T. Sonnenborg","doi":"10.21701/bolgeomin/133.1/002","DOIUrl":"https://doi.org/10.21701/bolgeomin/133.1/002","url":null,"abstract":"The studies investigating saltwater intrusion in Denmark have been reviewed to identify the main characteristics and features that have an impact on coastal aquifers interacting with the sea. Traditionally, in regions with wet climate, saltwater intrusion is not appointed as a frequent problem and it is more commonly linked to areas affected by water scarcity. Nevertheless, multiple factors that can induce the salinization of coastal aquifers have been found for Denmark such as the presence of coastal drained lowlands with the water table below the sea level or karstic features and buried valleys in carbonate and detrital systems respectively that can act as preferential flow paths for saline water. Eustatic changes have been also played an important role in the salinization of aquifers, in deep aquifers saline ancient connate water can be identified and in small islands, a delicate equilibrium of freshwater lenses is generated over saline water. As the water supply in this country depends almost exclusively on groundwater, saltwater intrusion can jeopardize fresh groundwater resources in coastal areas. An overview of the cases already studied, questions about the magnitude of these issues and the future perspectives with climate changes are discussed to put into context what is already known and what are the next challenges.","PeriodicalId":45458,"journal":{"name":"BOLETIN GEOLOGICO Y MINERO","volume":"1 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46989669","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}
Pub Date : 2021-12-01DOI: 10.21701/bolgeomin.132.4.012
María Teresa Zandarin
{"title":"Normativa, gestión de riegos y experiencia sobre depósitos de relaves en Chile","authors":"María Teresa Zandarin","doi":"10.21701/bolgeomin.132.4.012","DOIUrl":"https://doi.org/10.21701/bolgeomin.132.4.012","url":null,"abstract":"","PeriodicalId":45458,"journal":{"name":"BOLETIN GEOLOGICO Y MINERO","volume":"1 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47031247","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}
Pub Date : 2021-12-01DOI: 10.21701/bolgeomin.132.4.011
Germán Rodari
{"title":"Secado de colas filtradas en contacto con la atmósfera","authors":"Germán Rodari","doi":"10.21701/bolgeomin.132.4.011","DOIUrl":"https://doi.org/10.21701/bolgeomin.132.4.011","url":null,"abstract":"","PeriodicalId":45458,"journal":{"name":"BOLETIN GEOLOGICO Y MINERO","volume":" ","pages":""},"PeriodicalIF":0.2,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48173126","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}
Pub Date : 2021-09-01DOI: 10.21701/bolgeomin.132.3.001
Anibal Wettem
The southern portion of the Colangüil Batholith is formed by units of the Tocota Pluton, of Permian age, which intrude late Carboniferous-Permian (Asselian) sandstones. Sub-volcanic bodies with andesitic composition and tuffs of Cenozoic age, modern layers of piedmont sediments and both alluvial and glacier deposits also crop out. The region exhibits a set of metalliferous deposits (Cu-Au-As) and occasionally with bismuth. These are mostly filonian type. These are spatially associated with granodiorites, granite and sandstone. Their development is interpreted as belonging to the Gondwanan cycle. Within granitic rocks, mineralizations were formed between 139 ºC and about 400 °C, probably after the consolidation of the Tocota pluton and by the upward circulation of hydrothermal fluids, probably mixed with meteoric waters. In the host rock, mineralization occurred in an interval between 200
{"title":"Mineralizaciones asociadas al Plutón Tocota. Sector Sur del Batolito de Colangüil, Cordillera Frontal, San Juan, Argentina","authors":"Anibal Wettem","doi":"10.21701/bolgeomin.132.3.001","DOIUrl":"https://doi.org/10.21701/bolgeomin.132.3.001","url":null,"abstract":"The southern portion of the Colangüil Batholith is formed by units of the Tocota Pluton, of Permian age, which intrude late Carboniferous-Permian (Asselian) sandstones. Sub-volcanic bodies with andesitic composition and tuffs of Cenozoic age, modern layers of piedmont sediments and both alluvial and glacier deposits also crop out. The region exhibits a set of metalliferous deposits (Cu-Au-As) and occasionally with bismuth. These are mostly filonian type. These are spatially associated with granodiorites, granite and sandstone. Their development is interpreted as belonging to the Gondwanan cycle. Within granitic rocks, mineralizations were formed between 139 ºC and about 400 °C, probably after the consolidation of the Tocota pluton and by the upward circulation of hydrothermal fluids, probably mixed with meteoric waters. In the host rock, mineralization occurred in an interval between 200","PeriodicalId":45458,"journal":{"name":"BOLETIN GEOLOGICO Y MINERO","volume":" ","pages":""},"PeriodicalIF":0.2,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48960716","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}
Pub Date : 2021-09-01DOI: 10.21701/bolgeomin.132.3.004
W. Martínez
{"title":"Interpretación de secuencias deposicionales de 3er orden: aplicación a las sucesiones estratigráficas del Mesozoico del Prebético y del Neógeno del Golfo de Valencia","authors":"W. Martínez","doi":"10.21701/bolgeomin.132.3.004","DOIUrl":"https://doi.org/10.21701/bolgeomin.132.3.004","url":null,"abstract":"","PeriodicalId":45458,"journal":{"name":"BOLETIN GEOLOGICO Y MINERO","volume":" ","pages":""},"PeriodicalIF":0.2,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48408301","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}
Pub Date : 2021-06-01DOI: 10.21701/bolgeomin.132.1-2.010
Cecilia Vanina
{"title":"Use of radon-222 to assess the groundwater inflow in a phreatic lake of a dune field (San Luis, Argentine)","authors":"Cecilia Vanina","doi":"10.21701/bolgeomin.132.1-2.010","DOIUrl":"https://doi.org/10.21701/bolgeomin.132.1-2.010","url":null,"abstract":"","PeriodicalId":45458,"journal":{"name":"BOLETIN GEOLOGICO Y MINERO","volume":" ","pages":""},"PeriodicalIF":0.2,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48681312","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}
Pub Date : 2021-06-01DOI: 10.21701/bolgeomin.132.1-2.003
A. Ruffo
{"title":"Humedales en la franja de médanos costeros entre Monte Hermoso y Pehuen Có, provincia de Buenos Aires, Argentina. Tipificación hidrológica","authors":"A. Ruffo","doi":"10.21701/bolgeomin.132.1-2.003","DOIUrl":"https://doi.org/10.21701/bolgeomin.132.1-2.003","url":null,"abstract":"","PeriodicalId":45458,"journal":{"name":"BOLETIN GEOLOGICO Y MINERO","volume":" ","pages":""},"PeriodicalIF":0.2,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48723362","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}
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