@article{fdi:010070909,
  title = {{C}hronological and geomorphological investigation of fossil debris covered glaciers in relation to deglaciation processes : a case study in the {S}ierra de {L}a {D}emanda, {N}orthern {S}pain},
  author = {{F}ernandez-{F}ernandez, {J}. {M}. and {P}alacios, {D}. and {G}arcia-{R}uiz, {J}. {M}. and {A}ndres, {N}. and {S}chimmelpfennig, {I}. and {G}omez-{V}illar, {A}. and {S}antos-{G}onzalez, {J}. and {A}lvarez-{M}artinez, {J}. and {A}rnaez, {J}. and {U}beda, {J}. and {L}eanni, {L}aetitia and {ASTER} {T}eam,},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n this study, fossil debris-covered glaciers are investigated and dated in the {S}ierra de la {D}emanda, northern {S}pain. {T}hey are located in glacial valleys of approximately 1 km in length, where several moraines represent distinct phases of the deglaciation period. {S}everal boulders in the moraines and fossil debris-covered glaciers were selected for analysis of {B}e-10 surface exposure dating. {A} minimum age of 17.8 +/- 2.2 ka was obtained for the outermost moraine in the {S}an {L}orenzo cirque, and was attributed to the global {L}ast {G}lacial {M}aximum ({LGM}) or earlier glacial stages, based on deglaciation dates determined in other mountain areas of northern {S}pain. {T}he youngest moraines were dated to approximately 16.7 +/- 1.4 ka, and hence correspond to the {GS}-2a stadial ({O}ldest {D}ryas). {G}iven that the debris-covered glaciers fossilize intermediate moraines, it was deduced that they developed between the {LGM} and the {O}ldest {D}ryas, coinciding with a period of extensive deglaciation. {D}uring this deglaciation phase, the cirque headwalls likely discharged large quantities of boulders and blocks that covered the residual ice masses. {T}he resulting debris-covered glaciers evolved slowly because the debris mantle preserved the ice core from rapid ablation, and consequently they remained active until the end of the {L}ate {G}lacial or the beginning of the {H}olocene (for the {S}an {L}orenzo cirque) and the {H}olocene {T}hermal {M}aximum (for the {M}encilla cirque). {T}he north-facing part of the {M}encilla cirque ensured longer preservation of the ice core.},
  keywords = {{D}ebris-covered glacier ; {O}ldest dryas ; {C}osmogenic exposure dating ; {S}ierra de la {D}emanda ; {ESPAGNE}},
  booktitle = {},
  journal = {{Q}uaternary {S}cience {R}eviews},
  volume = {170},
  numero = {},
  pages = {232--249},
  ISSN = {0277-3791},
  year = {2017},
  DOI = {10.1016/j.quascirev.2017.06.034},
  URL = {https://www.documentation.ird.fr/hor/fdi:010070909},
}