Pisolites and pisolitelike formations
Genetically one can differentiate four groups of pisolites. In the first one the water covers uniformly the sand granules moving in the spring and thus peas form Wiiicn iai.er set Lie on me stone, in tne second case weil aeveioped caicite crystals are covered subsequently by a microcrystalline ca�...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
University of Szeged, Department of Mineralogy, Geochemistry and Petrology
Szeged
1957
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| Sorozat: | Acta mineralogica-petrographica
10 |
| Kulcsszavak: | Kőzettan, Ásványtan, Földtan |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/24423 |
| Tartalmi kivonat: | Genetically one can differentiate four groups of pisolites. In the first one the water covers uniformly the sand granules moving in the spring and thus peas form Wiiicn iai.er set Lie on me stone, in tne second case weil aeveioped caicite crystals are covered subsequently by a microcrystalline ca'.cite layer. This second case is characterised by a great radius curvature. The third case occurs in co!d waters when previously separated lublinite puffs are covered by a thin steadily thickening caicite layer. To the fourth group the so-called rosestones belong. In their case an aragonite layer is deposited by the water and in the course of its slow transformation into the more stable caicite, which has a larger specific volumen, it becomes blistered. Many of such b'istered layers deposited on one another create a pisoltelike formation which is called rosestone. |
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| Terjedelem/Fizikai jellemzők: | 15-18 |
| ISSN: | 0365-8066 |