Meaning of luti¿leo by Francisco Valdez Mendoza

luti leo is incorrectly written and should be written as "lutioleo" being its meaning:?
Sust. men's. Oil; 40 or ) Shales: sedimentary rocks generated by consolidation of mud from the particle size of clay, which is the main component and anaerobic decomposition of organic matter contained in the sludge. Low porosity of rocks, to extract oil is necessary subject to hydraulic fracturing and supply them with chemical additives. Erroneously has been called oil shale or, to a lesser extent, slate oil, or to not to engage in misdeeds, and even comfort would it opts for not translating its original English expression "shale oil". But shale is "shale"; schist: «schist»; Slate: 'slate'. Metamorphic rocks are schists and slates. Shale etymology: from the latin «lutum»: mud, and the suffix - ita, of rocks; oil: the latin "oleum": oil ( originally referred to olive ).