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    STUDIA GEOLOGIA - Issue no. 3 / 2003  
         
  Article:   PHOSPHATES IN THE BAT GUANO DEPOSIT FROM GRIGORE DECAPOLITUL CAVE (CĂPĂŢÂNII MOUNTAINS, SOUTH CARPATHIANS, ROMANIA).

Authors:  ÅžTEFAN MARINCEA, DELIA-GEORGETA DUMITRAŞ, GABRIEL DIACONU. 		 
       
         
  Abstract:  “Peştera Liliecilor de la Mânăstirea Bistriţa” (the Cave of the Bats from Bistriţa Monastery) is located in the right slope of the gorges of the homonymous river (Căpăţânii Mountains, South Carpathians), at about 800 m upstream from the monastery. The cave, referred to hereafter as “Grigore Decapolitul Cave”, is famous due to a small church located in the biggest room of the cave, opened at about 80 m upwards the valley bed. This church hosts the relics of the Saint Grigore Decapolitul, who gave the second name of the cave. The cave galleries are developed in Upper Jurassic micritic limestones with calcarenite intralayers. Including the divergent galleries, the cave has 400 m in length. A small (25 m x 15 m x 5 m) room, located in the terminal part of the cave, hosts an active bat colony. Consequently and thus an important bat guano deposit can be observed on the floor. Hydroxylapatite, brushite, taranakite, ardealite, leucophosphite, gypsum and calcite mainly compose the guano mass. At the basis of the guano deposit, near its limit with the terra rossa mass, small amounts of illite (the 2M1 polytype), interstratified kaolinite-illite, quartz and amorphous iron sesquioxides are included in the guano. The iron sesquioxides are probably the same that gave the red ferruginous staining to the terra rossa. ...  
         
     
         
         
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