Page 158 - Geochemistry of Oil Field Waters

146 INORGANIC CONSTITUENTS AND PHYSICAL PROPERTIES

containing ions of sodium, calcium, magnesium, potassium, chloride,
bromide, and iodide. Calcium chloride concentration apparently has a very
pronounced effect upon the solubility of strontium sulfate.
Celestite and strontianite occur commonly in sediments. Carbonate sedi-
ments contain up to 1,200 ppm of strontium; dolomites, usually less than

“““I I
C -Cretaceous
J -Jurassic
C J
c cc 2,000
C
cC

T
I IIII I I IIL
10 20 50 100 2a
STRONTIUM, mgll
Fig. 5.11. Comparison of the strontium concentrations of some Tertiary (T), Cretaceous
(C), and Jurassic (J) age formation waters from Louisiana with an evaporating sea water.

500 -
-

200 -
-
\

P
I Ill
50 100 ZOO 500 1,000
STRONTIUM, mg/l
Fig. 5.12. Comparison of the strontium concentrations of some Pennsylvanian (P) and
Mississippian (M) age formation waters from Oklahoma with an evaporating sea water.