Hidrológiai Közlöny 1931 (11. évfolyam)

Gedeon Tihamér: Hidrológiai megfigyelések a Vértes-hegység délkeleti részéből

Chemical analysis of the waters of Cave Aggtelek 129 Table II. Content of ions of 1 liter water. Sample Nr. I. II. III. IV. V. VI. CaO 130-8 73-2 84-3 934 75-9 1333 Mg 0 35 4-6 19-9 3-3 5-3 15-1 K2O 1-7 11-7 2-2 1-9 40 175 NaaO 2-6 4-8 4-2 3-2 7-1 62 FeaOs trace 1-7 trace trace trace 66 SO3 8-2 11-2 79 10-3 13-4 14-4 CI 27 5-2 2-3 1-5 3-6 66 Free C Os 00 — 120 141 13-6 78 Halfbound CO2 101-9 ' 630 86-2 736 62-7 1252 Bound CO2 101-9 630 86-2 736 62-7 1252 SÍO2 7-3 18-6 111 12-5 130 18-3 Used O2 0-81 232 0-975 0-5 0-98 0-93 203 Proteid (HaN) 0-883 232 0-975 1-0 0-929 0697 0604 HaN 00 018 00 00 00 018 N205 10-74 13-49 7-94 7-42 087 11-98 N203 0004 0-006 0-006 00 0 002 0012 P205 0-74 1-66 0-33 2060 0-47 045 0-68 Dry matter (130°) 259-0 220 0 0-33 2060 195-0 1800 3740 Remains on ignition 2090 144-0 147-0 1340 1370 2550 Loss on ignition 500 g|760 59-0 61 0 430 1190 Total hardness, German grades 13-60 80° 11-2« 9-8° 8-3° 15'4° Carbonate hardness 12-9° 8-0" 11-0« 9-30 800 — Remaining hardness 0-7" o-o° 0-2" 0-5« 0-3» — Appearing carbonate hardness — — — — — 15-9° The quantity of nitrate ions is strikingly large being a proof of the large-scale nitrification activity of the Cave. It may be assumed therefore that most of the organic matter production is made in the Cave by nitrificating organisms. The unusual amount of nitrates is caused not only by the nitrificating activity of bacteria but also by the fact that their using up in lack of photosynthetical production is impossible. The organic nitrate content of surface waters is used up namely quickly by 9