scholarly journals Strategic influence on deep groundwater flow in the Knox Group Copper Ridge dolomite on the West Chestnut Ridge site

1987 ◽  
Author(s):  
R. R. Lee ◽  
R. H. Ketelle
Keyword(s):  
Groundwater Flow ◽  
The West ◽  
Deep Groundwater ◽  
Strategic Influence

scholarly journals Hydrogeological Classification and the Correlation of Groundwater Chemistry with Basin Flow in the South-Western Part of Bangladesh

2018 ◽  
Vol 42 (1) ◽  
pp. 41-54 ◽  
Author(s):  
Shahpara Sheikh Dola ◽  
Khairul Bahsar ◽  
Mazeda Islam ◽  
Md Mizanur Rahman Sarker
Keyword(s):  
Groundwater Flow ◽  
Water Chemistry ◽  
Sea Water ◽  
Shallow Groundwater ◽  
Shallow Aquifer ◽  
Deep Basin ◽  
Deep Groundwater ◽  
Deep Aquifer ◽  
Delta Plain ◽  
Type Water

Attempt has been made to find the relationship between the basin groundwater flow and the current water chemistry of south-western part of Bangladesh considering their lithological distribution and aquifer condition. The correlation of water chemistry and basin groundwater flow is depicted in the conceptual model. The water-types of shallow groundwater are predominantly Mg-Na-HCO3 and Ca- Mg-Na-HCO3 type. In the deep aquifer of upper delta plain is predominately Na-Cl, Ca-HCO3 and Mg- HCO3 type. In the lower delta plain Na-Cl type of water mainly occurs in the shallow aquifer and occasionally Ca-HCO3, Ca-Mg-Na-HCO3 and Mg-HCO3 type may also occur in shallow aquifer of the eastern part of lower delta plain which could have originated from the recent recharge of rain water. Na- Cl type water is also found in the deep aquifer of lower delta plain. The origin of Na-Cl type water in the deep aquifer of lower delta part might be connate water or present day sea water intrusion. Fresh water occurring in the deep aquifer in the lower delta area is mostly of Mg-Ca-HCO3 and Na-HClO3 types. This type of water originate from intermediate or deep basin flow from the northern part of Bangladesh. The probable source of deep groundwater is Holocene marine transgression (Khan et al. 2000) occurred in 3000–7000 cal years BP and the deep groundwater of Upper Delta plain and Lower Delta plain is clearly influenced by deep basin flow coming from north part of BangladeshJournal of Bangladesh Academy of Sciences, Vol. 42, No. 1, 41-54, 2018

Characteristics of deep groundwater flow in a basin marginal setting at Sellafield, Northwest England: 36Cl and halide evidence

2007 ◽  
Vol 22 (1) ◽  
pp. 128-151 ◽  
Author(s):  
Richard Metcalfe ◽  
Mark B. Crawford ◽  
Adrian H. Bath ◽  
Anna K. Littleboy ◽  
Paul J. Degnan ◽  
...  
Keyword(s):  
Groundwater Flow ◽  
Deep Groundwater

scholarly journals Deep groundwater flow as the main pathway for chemical outputs in a small headwater watershed (Mule Hole, South India)

2011 ◽  
Vol 26 ◽  
pp. S94-S96 ◽  
Author(s):  
J.C. Maréchal ◽  
J. Riotte ◽  
C. Lagane ◽  
S. Subramanian ◽  
C. Kumar ◽  
...  
Keyword(s):  
Groundwater Flow ◽  
South India ◽  
Deep Groundwater ◽  
Main Pathway

scholarly journals Hydrogeology Potential of Hargorejo Area Kokap Subdistrict West Progo Regency

2020 ◽  
Vol 12 (2) ◽  
Author(s):  
T. Listyani R.A. ◽  
Dianto Isnawan ◽  
Ign. Adi Prabowo
Keyword(s):  
Groundwater Flow ◽  
Ph Value ◽  
Shallow Groundwater ◽  
Research Area ◽  
The West ◽  
Basin Boundary ◽  
Geological Characteristics ◽  
Dug Wells ◽  
Groundwater Basin ◽  
Basin Region

This research is a hydrogeological survey activity with the aim to determine the geological characteristics of groundwater in the Hargorejo area, Kokap Sub-district, West Progo. The study wants to know about the pattern of groundwater flow and water quality in the area. The northern part of the research area is included in the non-groundwater basin region of the West Progo Dome, while the southern part is included in Wates Groundwater Basin. Method of research is a field hydrogeological survey, to obtain geological and groundwater data. Groundwater flow pattern and quality analyses are based on groundwater data and pH, TDS and EC values. Groundwater can be obtained from springs or dug wells, with relatively shallow groundwater tables. The pattern of groundwater flow is generally to the south, with the H4 / H5 basin boundary type. Groundwater quality is quite good, with a pH value of 6.2 -7; TDS 191 - 558 ppm, and EC ranges from 279-783 µS / cm.

scholarly journals Anthropogenic disturbances of natural ecohydrological processes in the Matlabas mountain mire, South Africa

2019 ◽  
Vol 115 (5/6) ◽  
Author(s):  
Antoinette Bootsma ◽  
Samer Elshehawi ◽  
Ab Grootjans ◽  
Piet-Louis Grundling ◽  
Steven Khosa ◽  
...  
Keyword(s):  
South Africa ◽  
Groundwater Flow ◽  
Southern Africa ◽  
Wetland Management ◽  
Terrestrial Vegetation ◽  
Deep Groundwater ◽  
Near Surface ◽  
Water Flows ◽  
Access Road ◽  
Isotope Content

Matlabas is a mountain mire in Marakele National Park, located within the headwaters of the Limpopo River in South Africa. This mire consists of a complex of valley-bottom and seepage wetlands with small elevated peat domes. The occurrence of one decaying peat dome, which has burnt, and desiccated wetland areas with terrestrial vegetation has raised concerns. The aim of this study was to understand the mire features and water flows in order to identify the potential drivers causing wetland degradation. Wells and piezometers were installed to monitor the hydraulic head and collect water samples for analysis of ion composition, 18O and 2H stable isotope content, and δ13C and 14C isotope content for radiocarbon dating. Moreover, peat temperature profiles were measured and peat deposits were also dated using radiocarbon. Results indicate that the Matlabas mire developed in the lowest central-east side of the valley by paludification at the onset of the Holocene. During the Mid-Holocene, peat development was extended laterally by autogenic and allogenic processes. Three types of water flows driving peat development were identified – sheet flow, phreatic groundwater flow and deep groundwater flow – two of which are surface or near surface flows. The recent occurrence of decaying peat domes and desiccated wetland areas is possibly related to loss of exfiltrating deep groundwater flows that have resulted from drainage by the head-cut channels in the mire and interception of near surface water flow by an access road, respectively. Interventions should be undertaken to prevent further degradation of the mire. Significance: This study is the first, as far as we are aware, on the ecohydrology of an inland mountainous mire in southern Africa. The results highlight the importance of the current wetland management (including rehabilitation) initiatives in South Africa. The integrative ecohydrological methods can be applied in other headwater wetlands in southern Africa.

Geochemical Approaches to Understanding a Shallow Groundwater Flow in the Kanamaru Uranium Mineralization Area (Japan)

2005 ◽  
Vol 893 ◽  
Author(s):  
Regis Bros ◽  
Yoji Seki ◽  
Atsushi Kamei ◽  
Yutaka Kanai ◽  
Koichi Okuzawa ◽  
...  
Keyword(s):  
Groundwater Flow ◽  
Flow System ◽  
Shallow Groundwater ◽  
Shallow Waters ◽  
Vertical Diffusion ◽  
Deep Groundwater ◽  
Fresh Groundwater ◽  
Activity Ratios ◽  
Alkaline Earths ◽  
Groundwater Systems

AbstractPredicting the behaviour of radioactive wastes can be facilitated by comparison with the evolution of natural groundwater systems. During a study of the Kanamaru U mineralization (Japan), geochemical approaches for understanding a shallow (0-50 m) fresh groundwater flow system are being assessed. Deep granitic waters are Ca-HCO3-dominated and slightly acidic to slightly alkaline. Shallow waters within sediments display lower pH and they are more dilute. Halide concentrations suggest the existence of a non marine Br-rich and Cl-depleted deep groundwater in the basement. 234U/238U and 230Th/234U activity ratios in the mineralized sedimentary rocks indicate that U mobilization took place within the last 350,000 years. U dissolution currently continues and it is controled by lateral groundwater flow whereas vertical diffusion appears negligible. Dissolved alkaline earths concentrations and the 87Sr/86Sr ratio indicate that solutes exchanges take place through uppermost low permeable granite followed by mixing with more dilute and Cl-type shallow groundwater.

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