SILICEOUS SEDIMENTS (PETROGRAPHY)
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BTSILICEOUS ROCKS (PETROGRAPHY)
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UDC552.55,9
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Descriptor GERKIESELIGE SEDIMENTE (PETROGRAPHIE)
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Descriptor ENGSILICEOUS SEDIMENTS (PETROGRAPHY)
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Descriptor FRESEDIMENTS SILICEUX (PÉTROGRAPHIE)
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Variant GERSEDIMENTE/KIESELIGE SEDIMENTE (PETROGRAPHIE)
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Variant ENGSEDIMENTS/SILICEOUS SEDIMENTS (PETROGRAPHY)