@inproceedings{fdi:010012914,
  title = {{S}ecuencia de transformacion de un suelo ferralitico en tepetate silicificado en la region de {X}alapa ({V}eracruz, {M}exico)},
  author = {{R}ossignol, {J}ean-{P}ierre and {Q}uantin, {P}aul},
  editor = {},
  language = {{SPA}},
  abstract = {{I}ndurated soils, called tepetates by the farmers, can be seen in the region of {X}alapa, {V}eracruz, {M}exico. {T}hey are located in the lower part of a topoclimatic sequence of soils developed on volcanic materials. {T}his sequence, located on the slope of the {C}ofre de {P}erote volcano toward the {G}ulf of {M}exico, stars at an altitude of 3,500 m. with a successive appearence of andosols and, lower down ferralitic soils and, at an altitude af 1,200 m., tepetate soils. {T}he representative soils were studied within the framework of the morphopedological map of the region. {T}he ferralitic soils are observed in the altitudinal hand between 1,200 and 1,500 m. where there is a subtropical climate with only a short dry season. {T}he tepetate soils appear in the zone where the dry season is 5 to 6 months long. {T}his work presents the changes from ferralitic soils to tepetate soils. {T}his change is progressively developed under two conditions of soils, acidity and alternative redoximorphy according to a climatic transition from an udic to an ustic moisture regime. {T}he silicification of tepetate soils is a result of these environmental conditions, with alternative wet and dry seasons. ({R}{\'e}sum{\'e} d'auteur).},
  keywords = {{SOL} {DEGRADE} ; {EVOLUTION} ; {MINERALOGIE} ; {GEOCHIMIE} ; {TOPOSEQUENCE} ; {TEPETATE} ; {CHANGEMENT} {CLIMATIQUE} ; {MEXIQUE} ; {VERACRUZ} ; {XALAPA}},
  numero = {},
  pages = {73--82},
  booktitle = {{S}uelos volcanicos endurecidos},
  year = {1997},
  URL = {https://www.documentation.ird.fr/hor/fdi:010012914},
}