Search

espanolSe realizaron analisis de datacion por carbono catorce y microscopia electronica de barrido para determinar la edad y el estado de conservacion de un petate elaborado con fibras duras y una mortaja de algodon de un fardo mortuorio de Zimapan, Hidalgo. Ademas, las fibras fueron tratadas con quitosan y polipropilenglicol, tratamiento de conservacion innovador, cuyo funcionamiento se evaluo con microscopia electronica de barrido; asi mismo tambien fueron datadas las fibras despues del tratamiento. La datacion con radiocarbono indica que tanto el petate de fibras de palma como la mortaja de algodon son prehispanicos de 1022 a 1206 cal d.C; las fibras tratadas dieron edades considerablemente mas antiguas (72-418 cal d.C.). La diferencia de edades se debe posiblemente al efecto reservorio, ya que el quitosan se obtiene de los exoesqueletos de crustaceos marinos. Ademas, los analisis realizados indicaron que el tratamiento para las fibras fue efectivo consolidando, flexibilizando y fumigando las fibras al mismo tiempo. EnglishRadiocarbon dating and scanning electron microscopy analyses were used to determine the age and conservation state of a palm mat made with hard fibers and a cotton shroud found in a funerary bundle of Zimapan Hidalgo, Mexico. The fibers were also treated with an innovative treatment of chitosan and polypropylene glycol. The treatment was analyzed with a scanning electron microscopy and radiocarbon dating was applied to the treated fibers. The radiocarbon dating showed dates of 1022 a 1206 cal d.C therefore the textiles are prehispanic, and the treated fibers showed an early date (72-418 cal d.C.). This difference could be explained from the reservoir effect in the marine organisms because the chitosan is obtained from the chitin of crustacean’s exoskeletons. The analysis also showed that the treatment for the fibers was effective because the fibers gained consolidation, flexibilization and also microorganisms were killed and removed.