scholarly journals Isotopic Characterization of Shallow Groundwater Resources in Lagos Coastal Basin, Nigeria

2020 ◽  
Author(s):  
Kehinde Olojoku Ibrahim ◽  
Mumeen Adebayo Yusuf
Keyword(s):  
Groundwater Resources ◽  
Shallow Groundwater ◽  
Isotopic Characterization ◽  
Coastal Basin

scholarly journals Origin and residence time of shallow groundwater resources in Lagos coastal basin, south-west Nigeria: An isotopic approach

Heliyon ◽  
2018 ◽  
Vol 4 (11) ◽  
pp. e00932 ◽  
Author(s):  
M.A. Yusuf ◽  
T.A. Abiye ◽  
M.J. Butler ◽  
K.O. Ibrahim
Keyword(s):  
Residence Time ◽  
Groundwater Resources ◽  
Shallow Groundwater ◽  
South West ◽  
Coastal Basin

scholarly journals Characterization of spatial coseismic response of groundwater levels in shallow and deep parts of an alluvial plain to different earthquakes

2012 ◽  
Vol 9 (4) ◽  
pp. 5317-5354
Author(s):  
M. Parvin ◽  
N. Tadakuma ◽  
H. Asaue ◽  
K. Koike
Keyword(s):  
Groundwater Level ◽  
Groundwater Resources ◽  
Shallow Groundwater ◽  
Seismic Energy ◽  
Large Earthquake ◽  
Deep Groundwater ◽  
Groundwater Levels ◽  
Pressure Changes ◽  
Relationship Of

Abstract. Coseismic changes in groundwater levels have been investigated in many places throughout the world, but most studies have focused on the effects of one large earthquake. Few studies have looked at the spatial patterns of level changes in response to several earthquakes, or at the relationship of the patterns to shallow and deep groundwater in the same area. The aim of this study was to investigate these patterns and to construct a model of hydraulic responses. We selected the Kumamoto City area in southwest Japan, a region with one of the richest groundwater resources in Japan, as our study site. Data from hourly measurements of groundwater levels in 54 wells were used to characterize the coseismic spatial responses to four large earthquakes that occurred in 2000, 2001, 2005, and 2008. Although the distance to the epicenter (12 to 2573 km), and seismic energy (Mw = 4.8 to 8.0) of these earthquakes varied, systematic groundwater level changes were observed in the range of 0.01 to 0.67 m. The zones where coseismic rises were observed were generally wider for deep groundwater than for shallow groundwater. We observed general trends in the changes in groundwater levels, and calculated pressure changes, in the deep groundwater, but the coseismic increases or decreases in compressive stress in the shallow groundwater were variable, depending on the distance to the earthquake epicenter. We developed a conceptual model of the mechanism underlying this phenomenon and also investigated the importance of Togawa lava, consisting of porous andesite and forming a main aquifer, in determining the pattern of groundwater level change.

HYDROCHEMICAL AND ISOTOPIC CHARACTERIZATION OF GROUNDWATER FLOW SYSTEMS IN NORTH-CENTRAL MEXICO: IMPLICATIONS FOR WATER MANAGEMENT

2020 ◽  
Author(s):  
Antonio Cardona ◽  
◽  
Cristian Abraham Rivera-Armendariz ◽  
Socrates Alonso Torres ◽  
Isidro Montes-Avila
Keyword(s):  
Water Management ◽  
Groundwater Flow ◽  
Central Mexico ◽  
North Central ◽  
Groundwater Flow Systems ◽  
Flow Systems ◽  
Isotopic Characterization

Stable isotopic characterization of nitrate wet deposition in the tropical urban atmosphere of Costa Rica

2021 ◽  
Author(s):  
Mario Villalobos-Forbes ◽  
Germain Esquivel-Hernández ◽  
Ricardo Sánchez-Murillo ◽  
Rolando Sánchez-Gutiérrez ◽  
Ioannis Matiatos
Keyword(s):  
Costa Rica ◽  
Wet Deposition ◽  
Urban Atmosphere ◽  
Stable Isotopic ◽  
Isotopic Characterization

scholarly journals Elemental and Isotopic Characterization of Tobacco from Umbria

Metabolites ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 186
Author(s):  
Luana Bontempo ◽  
Daniela Bertoldi ◽  
Pietro Franceschi ◽  
Fabio Rossi ◽  
Roberto Larcher
Keyword(s):  
Stable Isotope ◽  
Economic Value ◽  
Isotope Ratios ◽  
Stable Isotope Ratios ◽  
Umbria Region ◽  
Geographical Regions ◽  
Isotopic Characterization ◽  
First Time ◽  
Micro Elements

Umbrian tobacco of the Virginia Bright variety is one of the most appreciated tobaccos in Europe, and one characterized by an excellent yield. In recent years, the Umbria region and local producers have invested in introducing novel practices (for production and processing) focused on environmental, social, and economic sustainability. Due to this, tobacco from Umbria is a leading commodity in the global tobacco industry, and it claims a high economic value. The aim of this study is then to assess if elemental and isotopic compositions can be used to protect the quality and geographical traceability of this particular tobacco. For the first time the characteristic value ranges of the stable isotope ratios of the bio-elements as a whole (δ2H, δ13C, δ15N, δ18O, and δ34S) and of the concentration of 56 macro- and micro-elements are now available, determined in Virginia Bright tobacco produced in two different areas of Italy (Umbria and Veneto), and from other worldwide geographical regions. The ranges of variability of elements and stable isotope ratios had slightly different results, according to the three geographical origins considered. In particular, Umbria samples presented significantly lower content of metals potentially dangerous for human health. The results of this first exploratory work highlight the possibility of characterizing tobacco from Umbria, and suggest widening the scope of the survey throughout Italy and foreign regions, in order to be used to describe the geographical origin of tobacco in general and verify the origin of the products on the market.

Chemical‐petrographic and isotopic characterization of the volcanic pavement along the ancient Appia route at the Aurunci Mountain Pass, Italy: Insights on possible provenance

2019 ◽  
Vol 34 (5) ◽  
pp. 522-539
Author(s):  
Emiliano Di Luzio ◽  
Ilenia Arienzo ◽  
Simona Boccuti ◽  
Anna De Meo ◽  
Gianluca Sottili
Keyword(s):  
Mountain Pass ◽  
Isotopic Characterization

Characterization of the shallow groundwater system in an area with thin soils and sinkholes

1986 ◽  
Vol 8 (1-2) ◽  
pp. 99-104 ◽  
Author(s):  
James H. Wiersma ◽  
Ronald D. Stieglitz ◽  
Dewayne L. Cecil ◽  
Glenn M. Metzler
Keyword(s):  
Shallow Groundwater ◽  
Groundwater System ◽  
Shallow Groundwater System
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