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Table 4 Groups of hypothetical salts for the studied groundwater samples

From: Rock-water interaction processes based on geochemical modeling and remote sensing applications in hyper-arid environment: cases from the southeastern region of Egypt

Aquifer

Hypothetical salts

Well numbers

Salts

Groups

Alluvial

NaCl, Na2SO4, MgSO4, CaSO4, Ca(HCO3)2

IV

3, 4

NaCl, MgCl2, MgSO4, CaSO4, Ca(HCO3)2

V

1, 5, 6

NaCl, MgCl2, CaCl2, CaSO4, Ca(HCO3)2

VI

2, 7, 8, 9, 10, 11

Nubian Sandstone

NaCl, Na2SO4, MgSO4, Mg(HCO3)2, Ca(HCO3)2

II

14, 15, 16

NaCl, MgCl2, MgSO4, Mg(HCO3)2, Ca(HCO3)2

III

17, 20

NaCl, MgCl2, MgSO4, CaSO4, Ca(HCO3)2

V

12, 13, 18, 19, 21, 22, 23

Fractured basement

NaCl, MgCl2, MgSO4, Mg(HCO3)2, Ca(HCO3)2

III

24, 25

NaCl, Na2SO4, MgSO4, CaSO4, Ca(HCO3)2

IV

26, 29, 30

NaCl, MgCl2, CaCl2, CaSO4, Ca(HCO3)2

VI

27, 28, 31, 32, 33, 34, 35, 36, 37

Rainfall

NaCl, Na2SO4, NaHCO3, Mg(HCO3)2, Ca(HCO3)2

I

R

Sea water

NaCl, MgCl2, MgSO4, CaSO4, Ca(HCO3)2

V

S