De Re Salica: Fundamental principles of salt tectonics

Hudec, Michael R.; Jackson, Martin P. A.

doi:10.1016/b978-0-444-56357-6.00001-9

Cited by 4 publications

(4 citation statements)

References 40 publications

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“…The atmosphere contains a significant quantity of salts, primarily sourced from the oceans, Na + and Cl − are the dominant ions found in air masses over the sea and as a result, coastal air masses tend to have high concentrations of these ions (USGS, 2019). However, as one moves further inland, these concentrations decrease rapidly (Hudec & Jackson, 2012). These salts are introduced into coastal watersheds through precipitation.…”

Section: Literature Reviewmentioning

confidence: 99%

“…In the hydrological system on land, if the extraction of fresh groundwater through pumping wells exceeds the rate at which it is replenished, it leads to a lowering of the water table known as drawdown (Hudec & Jackson, 2012). In coastal areas, this drawdown along with the decreased hydrostatic pressure allows saltwater from the ocean to intrude into the freshwater aquifer (Hudec & Jackson, 2012). This phenomenon is observed not only in the coastal regions of Lagos, Nigeria but also in other coastal areas worldwide.…”

Section: Aquifer Sustainability and Management Proceduresmentioning

confidence: 99%

See 1 more Smart Citation

An Assessment of Saltwater Intrusion in Coastal Regions of Lagos, Nigeria

Callistus,

Daniel,

Pelumi

et al. 2024

GEP

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This paper explains various factors that contribute to saltwater intrusion, including overexploitation of freshwater resources and climate change as well as the different techniques essential for effective saltwater intrusion management. The impact of saltwater intrusion along coastal regions and its impact on the environment, hydrogeology and groundwater contamination. It suggests potential solutions to mitigate the impact of saltwater intrusion, including effective water management and techniques for managing SWI. The application of A.I (assessment index) serves as a guideline to correctly identify wells with SWI ranging from no intrusion, slight intrusion and strong intrusion. The challenges of saltwater intrusion in Lagos and the salinization of wells were investigated using the hydro-chemical parameters. The study identifies four wells ("AA", "CMS", "OBA" and "VIL") as having high electric conductivities, indicating saline water intrusion, while other wells ("EBM", "IKJ, and "IKO") with lower electric conductivities, indicate little or no salt-water intrusion, and "AJ" well shows slight intrusion. The elevation of the wells also played a vital role in the SWI across coastal regions of Lagos. The study recommends continuous monitoring of coastal wells to help sustain and reduce saline intrusion. The findings of the study are important for policymakers, researchers, and practitioners who are interested in addressing the challenges of saltwater intrusion along coastal regions. We assessed the SWI across the eight (8) wells using the Assessment Index to identify wells with SWI. Wells in "CMS" and "VIL" has strong intrusions. A proposed classification system based on specific ion ratios categorizes water quality from good (+) to highly (−) contaminated (refer to Table 4

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Section: Literature Reviewmentioning

confidence: 99%

Section: Aquifer Sustainability and Management Proceduresmentioning

confidence: 99%

An Assessment of Saltwater Intrusion in Coastal Regions of Lagos, Nigeria

Callistus,

Daniel,

Pelumi

et al. 2024

GEP

View full text Add to dashboard Cite

show abstract

“…The combination of these particular petrophysical properties and the ability to form hydrocarbon traps in their surrounding rocks make evaporites key components of petroleum systems (Weijermars et al, 1993). Accordingly, they control the reservoir distribution and hydrocarbon migration in some of the world's major hydrocarbon provinces, such as the Persian Gulf, North Sea, or Gulf of Mexico basins, among others (Warren, 2006;Hudec and Jackson, 2012;Jackson and Hudec, 2017, and references therein).…”

Section: Introductionmentioning

confidence: 99%

IESDB – the Iberian Evaporite Structure Database

González-Esvertit

Alcalde

Gomez‐Rivas

2023

Earth Syst. Sci. Data

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Abstract. Evaporites flow in the solid state under relatively low differential stress and have unique mechanical properties compared to other sedimentary rocks. Worldwide, they control the structural and stratigraphical architecture of many basins and orogens in ancient and active tectonic settings. Moreover, they host mineral deposits and play a key role in petroleum systems because they typically act as seals due to their low permeability, and their ability to flow results in the formation of structural hydrocarbon traps such as folds and faults in their encasing rocks. Additionally, evaporite structures can be used as subsurface storage sites for geo-energy applications and nuclear waste. The systematic characterisation of subsurface evaporite structures is thus key for the development of geoscience-based technologies to address societal challenges. Owing to their value, massive amounts of surface and subsurface information about (among others) the stratigraphy, structure, geochemistry, and petrophysical properties of evaporite structures and their surrounding rocks have been acquired by Earth scientists, petroleum and mining exploration companies, and geological surveys. However, the data often appear segregated (i.e. in the form of database fragments, scientific articles, and unpublished reports), are not systematically organised, and are sometimes not fully accessible. This contribution presents the Iberian Evaporite Structure Database (IESDB), the first comprehensive assessment that focuses on evaporite structures carried out in any region of the world. The IESDB includes information and figures for 150 evaporite structures and their surrounding rocks inventoried in Spain and Portugal and is sourced from other six thematic databases and more than 1500 published and unpublished scientific documents. The database targets undeformed to slightly deformed evaporite successions, outcropping and buried diapirs, evaporite-cored anticlines, evaporite-detached thrusts, and allochthonous evaporite bodies. Collated data include information about the structure, stratigraphy, event chronology, surface and subsurface data availability, mining activity, and key bibliographic references. The IESDB follows the FAIR principles of database management (Findable, Accessible, Interoperable, and Reusable) and is presented as an interactive web page and an open-access database, where indexed structures can easily be selected from a map or browser and filtered by a search engine. The IESDB intends to be a useful resource for teaching (i.e. pointing out examples of exceptional evaporite outcrops), academic and industry research (i.e. identifying knowledge deficits on specific structures or tectonic settings), and for the sustainable exploration and appraisal of mineral resources and geo-energy applications (i.e. representing a terminus a quo for site selection and suitability assessment). The framework provided by the IESDB is an opportunity to enhance the scientific research on Iberian evaporite structures in Spain and Portugal and to take advantage of their scientific and economic potential to tackle important societal challenges faced by these countries. The IESDB is freely available at https://iesdb.eu (last access: 15 June 2023) and the datasets can be downloaded from https://doi.org/10.20350/digitalCSIC/14586 (González-Esvertit et al., 2022).

show abstract

“…The combination of these particular petrophysical properties and the ability to form hydrocarbon traps in their surrounding rocks make evaporites key components of petroleum systems (Weijermars et al, 1993). Accordingly, they control the reservoir distribution and hydrocarbon migration in some of the world's major hydrocarbon provinces, such as the Persian Gulf, North Sea or Gulf of Mexico basins, among others (Warren, 2006;Hudec and Jackson, 2012;Jackson and Hudec, 2017 and the references thereof).…”

Section: Introductionmentioning

confidence: 99%

IESDB – The Iberian Evaporite Structure Database

González-Esvertit

Alcalde

Gomez‐Rivas

2022

Preprint

View full text Add to dashboard Cite

Abstract. Evaporites flow in the solid state under relatively low differential stress, and have unique mechanical properties compared to other sedimentary rocks. Worldwide, they control the structural and stratigraphical architecture of many basins and orogens in ancient and active tectonic settings. Moreover, they host mineral deposits and play key roles in petroleum systems because they typically act as seals due to their low-permeability, and their flow produce structural hydrocarbon traps such as folds and faults in their encasing rocks. Additionally, evaporite structures can be used as subsurface storage sites for Geo-energy applications and nuclear waste. The systematic characterization of subsurface evaporite structures is thus key for the development of geoscience-based technologies to address societal challenges. Owing to their value, massive amounts of surface and subsurface information about (among others) the stratigraphy, structure, geochemistry, and petrophysical properties of evaporite structures and their surrounding rocks have been acquired by earth scientists, petroleum and mining exploration companies, and geological surveys. However, the data often appear segregated (i.e., in the form of database fragments, scientific articles and unpublished reports), not systematically organized, and sometimes not fully accessible. This contribution presents the Iberian Evaporite Structure DataBase (IESDB), the first comprehensive assessment that focuses on evaporite structures carried out in any region of the world. The IESDB includes information and figures for 150 evaporite structures and their surrounding rocks inventoried in Spain and Portugal, and is sourced from other six thematic databases and more than 1,500 published and unpublished scientific documents. The database targets undeformed to slightly deformed evaporite successions, outcropping and buried diapirs, evaporite-cored anticlines, evaporite-detached thrusts, and allochthonous evaporite bodies. Collated data include information about the structure, stratigraphy, event chronology, surface and subsurface data availability, mining activity, and key bibliographic references. The IESDB follows the FAIR principles of database management (Findable, Accessible, Interoperable and Reusable) and is presented as an interactive webpage and an open-access database, where indexed structures can easily be selected from a map or browser and filtered by a search engine. The IESBD intends to be a useful resource for teaching (i.e., pointing out examples of exceptional evaporite outcrops), academic and industry research (i.e., identifying knowledge deficits on specific structures or tectonic settings), and for the sustainable exploration and appraisal of mineral resources and Geo-Energy applications (i.e., representing a terminus a quo for site selection and suitability assessment). The framework provided by the IESDB is an opportunity to enhance the scientific research on Iberian evaporite structures in Spain and Portugal and to take advantage of their scientific and economic potential to tackle important societal challenges faced by these countries. The IESDB is freely available at https://iesdb.eu and the datasets can be downloaded from https://doi.org/10.20350/digitalCSIC/14586 (González-Esvertit et al., 2022).

show abstract

De Re Salica: Fundamental principles of salt tectonics

Cited by 4 publications

References 40 publications

An Assessment of Saltwater Intrusion in Coastal Regions of Lagos, Nigeria

An Assessment of Saltwater Intrusion in Coastal Regions of Lagos, Nigeria

IESDB – the Iberian Evaporite Structure Database

IESDB – The Iberian Evaporite Structure Database

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