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	mads.xsd"><authority><topic authority="http://www.serbi.ula.ve/tematres/vocab/">GEOLOGIA ECONOMICA</topic></authority><related type="narrower"><topic>ACEITES MINERALES</topic></related><related type="narrower"><topic>CANTERAS</topic></related><related type="narrower"><topic>CARBON</topic></related><related type="narrower"><topic>GAS NATURAL</topic></related><related type="narrower"><topic>GEOLOGIA DE MINAS</topic></related><related type="narrower"><topic>GEOLOGIA DEL PETROLEO</topic></related><related type="narrower"><topic>GRAFITO</topic></related><related type="narrower"><topic>MENAS</topic></related><related type="narrower"><topic>MINAS</topic></related><related type="narrower"><topic>PIEDRA</topic></related><related type="narrower"><topic>PIEDRAS DE CONSTRUCCION</topic></related><related type="narrower"><topic>SUELOS</topic></related><related type="broader"><topic>GEOFISICA</topic></related><variant type="other"><topic>Economía--Geología</topic></variant></mads>