1 23 Environmental Earth Sciences ISSN 1866-6280 Volume 75 Number 7 Environ Earth Sci (2016) 75:1-15 DOI 10.1007/s12665-015-5212-y Geological, mineralogical and chemical characterization of Devonian kaolinite- bearing sediments for further applications in the ceramic (tiles) industry in La Paz, Bolivia Ariana Zeballos, Pär Weihed, Mario Blanco & Vladimir Machaca