@article{PAR00011895,
  title = {{U}sing image-based size analysis for determining the size distribution and flux of eolian particles sampled in coastal northern {C}hile (23 degrees {S})},
  author = {{F}lores-{A}queveque, {V}. and {C}aquineau, {S}andrine and {A}lfaro, {S}. and {V}aldes, {J}. and {V}argas, {G}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he aim of this study was to determine the size distribution and flux of the mineral fraction collected in marine sediment traps in {M}ejillones {B}ay (23 degrees {S}) using image-based size analysis. {I}n this bay the material settling in the water column is a mixture of biogenic particles and lithic grains. {T}he sediments analyzed correspond to four samples collected in the austral spring of 2008. {W}e used image-based size analysis because it presents several advantages, which makes it an ideal method to study fine marine sediments. {T}his analysis also yielded important information about the aspect and the morphology of the particles. {I}n order to analyze the lithic fraction only, different pretreatments were applied and size analyses were carried out with and without image information. {B}esides the main lithic components (quartz, feldspar, amphiboles, and micas), some nonlithic particles corresponding mainly to organic-matter remains were observed in the images, showing that the pretreatment was not fully effective. {B}iogenic silica and unexpected dark particles of probable anthropogenic origin were also detected. {T}o avoid the influence of nonlithic grains in the analysis, the images were filtered based on the aspect of the particles using various discrimination tools. {B}efore and after this removal, the size distributions of the samples were estimated and used to calculate the total flux. {A}s compared to the flux of lithic particles, this total flux displays a systematic overestimation of up to 12%. {A}s a consequence, using image-based size analysis allows not only enhancing the determination of the size distribution and flux but also controlling and improving the pretreatments protocols.},
  keywords = {{CHILI}},
  booktitle = {},
  journal = {{J}ournal of {S}edimentary {R}esearch},
  volume = {84},
  numero = {3-4},
  pages = {238--244},
  ISSN = {1527-1404},
  year = {2014},
  DOI = {10.2110/jsr.2014.23},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00011895},
}