نتایج جستجو برای: travertine
تعداد نتایج: 197 فیلتر نتایج به سال:
In this study, Kesendere, a village in Başkale District of Van province, was selected as the field study. and its surroundings, beside travertine two dragon-shaped rocks, four Tandoori houses, which are still good condition were built by same stone master, examined. These structures approximately 140 years ago. The biggest these converted to sheep pen few others, besides being used cellars, als...
Living stromatolites growing in a hot spring in Yellowstone National Park are composed of silica-encrusted cyanobacterial mats. Two cyanobacterial mat types grow on the stromatolite surfaces and are preserved as two distinct lithofacies. One mat is present when the stromatolites are submerged or at the water-atmosphere interface and the other when stromatolites protrude from the hot spring. The...
To elucidate how geothermal irregularities affect the sustainability of high-temperature microbiomes we studied the synecological dynamics of a geothermal microbial mat community (GMMC) vis-à-vis fluctuations in its environment. Spatiotemporally-discrete editions of a photosynthetic GMMC colonizing the travertine mound of a circum-neutral hot spring cluster served as the model-system. In 2010 a...
Waste management of olive pomace is difficult because the high production amount and nonbiodegradable organic substances. Catalytic pyrolysis process one effective methods for (OP) obtaining valuable substances from it. Therefore, in this study, different types marble sludge were used as catalyst at 500°C temperature 40% dose. While K1, K2, K3 are sludges obtained physicochemical treatment trav...
The conservation of stone monuments is a constant concern due to their continuous weathering, in which biofouling plays relevant role. To enhance the effectiveness biocidal treatments and avoid environmental issues related possible toxicity, this research aims at formulating characterizing coating charged with an eco-friendly biocide showing hydrophobic properties. For purpose, zosteric sodium ...
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