Abstract
AbstractSummary: Studies on a hot spring at Tajura (Libya) indicated narrow fluctuations in water temperature (43 … 44.5 °C) near the source site. A wide thermal gradient of 10 K between two sampling sites (near the source and in the marsh) recorded in December narrowed to 3 … 4.5 K in March. Similar pH values (6.7) near the source increased along the runoff channel and touched 6.9 in the marsh. Bicarbonate alkalinity always exceeded 400 mg/l; likewise conductivity was remarkably high (>4700 μS/cm). Scarce algal growth was observed near the source site, though mats of variable thickness prevailed along the runoff channel and in the marsh.
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