@article{fdi:010086553,
  title = {{F}onction de transfert pour l'estimation de la composition chimique des eaux fossiles {\`a} partir des diatom{\'e}es. {C}alibration sur les lacs sal{\'e}s du {L}ipez, {SW} de l'{A}ltiplano bolivien.},
  author = {{S}ervant {V}ildary, {S}imone and {R}isacher, {F}ran{\c{c}}ois and {R}oux, {M}.},
  editor = {},
  language = {{FRE}},
  abstract = {{D}iatom based transfer function for estimating the chemical composition of fossil water. {C}alibration based on salt lakes of the {L}ipez area in the southwestern {B}olivian {A}ltiplano.­ {D}iatom assemblages and water chemistry were studied in 13 shallow salt lakes in the southern part of the {B}olivian {A}ltiplano. {A}t each locality bottom sediment and water samples were collected simultaneously. {R}elationships between the composition of the diatom assemblages and variations in water chemistry were collated in order to permit the estimation of ancient water chemistries based on changes in the make up of fossil diatom associations in older sediments. {W}eighted {A}verages treated by {P}artial {L}east {S}quares regression ({WA} and {WA}­{PLS} methods) allowed an estimation of optima and the relative tolerances of 61 species to variations in salinity and to the relative quantities of the 15 chemical elements studied, among them boron and lithium. ??? {L}'{\'e}tude des assemblages de diatom{\'e}es et de la composition chimique des eaux a {\'e}t{\'e} effectu{\'e}e dans 13 lacs sal{\'e}s peu profonds localis{\'e}s dans le {S}ud de l'{A}ltiplano {B}olivien. {L}es points et les dates de pr{\'e}l{\`e}vement sont les m{\^e}mes pour les deux types d'{\'e}tude. {L}es relations entre les assemblages de diatom{\'e}es et les variables chimiques mesur{\'e}es sont effectu{\'e}es dans le but d'estimer ces variables dans le pass{\'e} {\`a} partir des diatom{\'e}es fossiles conserv{\'e}es dans les s{\'e}diments. {L}a m{\'e}thode des moyennes pond{\'e}r{\'e}es ({WA} et {WA}­{PLS} r{\'e}gression) a permis d'estimer les optima et les tol{\'e}rances de 61 esp{\`e}ces {\`a} la salinit{\'e} et aux diff{\'e}rents {\'e}l{\'e}ments chimiques dont le bore et le lithium.},
  keywords = {flore ; diatom{\'e}e ; {B}olivie ; {Q}uaternaire ; composition ionique ; chimie des eaux ; fonction de transfert ; {\'e}cologie ; {BOLIVIE} ; {ANDES}},
  booktitle = {},
  journal = {{C}arnets de {G}{\'e}ologie},
  volume = {{M}{\'e}moire 2002/01},
  numero = {{CG}2002_{M}01},
  pages = {36},
  year = {2002},
  DOI = {10.4267/2042/4566},
  URL = {https://www.documentation.ird.fr/hor/fdi:010086553},
}