Other
Scientific paper
Oct 1971
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1971gecoa..35.1023l&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 35, Issue 10, pp.1023-1045
Other
23
Scientific paper
The field pH and content of Ca 2+ , Mg 2+ , HCO 3 - , dissolved oxygen and other aqueous species have been measured in 29 spring waters and 29 well waters in folded and faulted Paleozoic carbonate rocks near State College, Pennsylvania. Most of the springs issue from limestone; most of the well waters are pumped from dolomite. Average specific conductances of the spring and well waters were 347 and 499 -1 , respectively, with polluted well waters having conductances as high as 945 -1 . Molar Ca 2+ / Mg 2+ ratios as low as 0.6 in the well waters have resulted from incongruent solution of dolomite. Theoretical treatment of relationships between P CO 2 , pH and HCO 3 - content shows that solution of calcite or dolomite by undersaturated waters leads to increases in both pH and HCO 3 - content. This relation is approximately obeyed by the spring waters at an average CO 2 pressure of 10 -2.2 atm. In contrast, solution or precipitation of carbonates by waters near saturation with respect to them, results in inverse relationships of pH and HCO 3 - ; a behavior closely obeyed by the well waters which have CO 2 pressures up to 10 -1.6 atm. Computer calculation of ground water saturation with calcite and dolomite at ground water temperatures (8-14°C) was made using remeasured solubility product data for calcite, and considering the effect of CaSO 4 0 , MgSO 4 0 and MgHCO 3 + ion pairs. Within the uncertainty of the chemical analyses and thermochemical data, 12 well waters and 3 spring waters were saturated with calcite, whereas 7 well waters and 3 spring waters were saturated with dolomite. None of the ground waters significantly exceeded saturation with respect to either carbonate.
No associations
LandOfFree
The geochemistry of some carbonate ground waters in central Pennsylvania does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The geochemistry of some carbonate ground waters in central Pennsylvania, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The geochemistry of some carbonate ground waters in central Pennsylvania will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1637837