Stefan Marincea's scientific contributions

Publications (32)

Article
Full-text available
A rich association of primary guano minerals, including taranakite, hydroxylapatite, brushite and gypsum with relicts of illite, kaolinite, alpha (low) quartz and calcite, was identified in the fossil bat guano deposit from Gura Dobrogei Cave, Dobrogea County, Romania. Gypsum and Ca phosphates developed preferentially on the carbonate bedrock or on...
Conference Paper
The National Museum of Geology of Romania is hosted by the historical building of the Geological Institute of Romania, declared a monument of architecture and erected in 1906 - 1909. The museum encapsulates all the branches of the geological sciences (which are shown as if illustrating a treatise of geology) and posesses 85000 exhibits. The 22 hall...

Citations

... Some ardealite crystals are cemented with massive fine leucophosphite (Figure 11c). Coarse, flat ardealite grains are suitable for SEM-EDS analysis (Table 4 and Figure 9g), and show a nearly stoichiometric mineral chemistry typical of cave environments [51,52,57,71]. Whitlockite, another main phosphate phase besides ardealite, reaches 47 % at the base of the layer (sample 11) (Figures 7 and 11-13) and often appears as prismatic and platy grains intergrown with apatite (Figures 11f and 12c,e). ...
... Relatively few prehistoric caves have been well-documented in terms of authigenic assemblages: et-Tabun Cave [58] and Kebara Cave [20] in Israel, Theopetra Cave in Greece [88], and Cioclovina Cave in Romania [20,22,50,54,57,60,62,63]. The Denisova Late Pleistocene-Holocene phosphate record (eight phosphates and two sulfates) sheds light on many details of older diagenetic mineral-forming processes that developed in a flowing system under high vertical gradients of pH and P, Ca, and S concentrations. ...