@article{fdi:010044340,
  title = {{D}iagenetic changes in {C}oncholepas concholepas shells ({G}astropoda, {M}uricidae) in the hyper-arid conditions of {N}orthern {C}hile - implications for palaeoenvironmental reconstructions},
  author = {{G}uzman, {N}ury and {D}auphin, {Y}. and {C}uif, {J}. {P}. and {D}enis, {A}. and {O}rtlieb, {L}uc},
  editor = {},
  language = {{ENG}},
  abstract = {{V}ariations in the chemical composition of fossil biogenic carbonates, and in particular of mollusc shells, have been used in a range of palaeoenvironmental reconstructions. {I}t is of primary importance, therefore, to detect and understand the diagenetic processes that may modify the original chemical signature. {T}his microstructural and biogeochemical study focuses on modern and fossil ({H}olocene and {P}leistocene) shells of a littoral gastropod of {N}orthern {C}hile, and on the characterization of mineral component transformations at the nanometric scale and concomitant intracrystalline organic compound modifications. {T}he inner aragonite layer of the shell exhibits more complex deteriorations than the calcite layer. {T}his preliminary study confirms that physical and chemical alterations of various components of mollusc shell biocrystals are complex and might manifest in different ways even within a single individual. {T}he single criterion of determining the mineralogical composition to verify the conservation state of shell samples is insufficient.},
  keywords = {{CHILI} ; {ANDES}},
  booktitle = {},
  journal = {{B}iogeosciences},
  volume = {6},
  numero = {2},
  pages = {197--207},
  ISSN = {1726-4170},
  year = {2009},
  URL = {https://www.documentation.ird.fr/hor/fdi:010044340},
}