@article{fdi:010055945,
  title = {{P}etrographical and geochemical study of modern lacustrine sedimentary organic matter ({L}agoa do {C}aco, {M}aranao, {B}razil) : relationship between early diagenesis, organic sedimentation and lacustrine filling},
  author = {{B}oussafir, {M}. and {S}ifeddine, {A}bdelfettah and {J}acob, {J}. and {F}oudi, {M}. and {C}ordeiro, {R}. {C}. and {A}lbuquerque, {A}. {L}. {S}. and {A}brao, {J}. {J}. and {T}urcq, {B}runo},
  editor = {},
  language = {{ENG}},
  abstract = {{L}agoa do {C}aco is an equatorial lake in northeast {B}razil, where the {I}nter-{T}ropical {C}onvergence {Z}one ({ITCZ}) enters the {S}outh {A}merican continent, and so at a key position for deciphering {Q}uaternary climatic variation. {P}reliminary results have shown that the sedimentary organic matter ({OM}) in the lake records the shifts in the {ITCZ} since the {L}ast {G}lacial {M}aximum. {T}he nature and fate of the {OM} have been determined by studying surface sediments and potential {OM} sources. {W}e present here the results of organic petrographic and {R}ock-{E}val pyrolysis assessments of the biological origin and preservation state of the {OM} in modern sediments from two deep transects of the lake. {T}he results led us to understand how an oligotrophic lake has accumulated 6 m of {OM}-rich sediment during the last 20 kyr. {P}alaeoenvironmental studies have shown that the lake level fluctuated during this time. {O}ur results explain the influence of lake bathymetric variation on early diagenesis and enable interpretation of the corresponding sedimentary {OM} record, which is dependent on the bathymetric variation.},
  keywords = {},
  booktitle = {},
  journal = {{O}rganic {G}eochemistry},
  volume = {47},
  numero = {},
  pages = {88--98},
  ISSN = {0146-6380},
  year = {2012},
  DOI = {10.1016/j.orggeochem.2012.03.013},
  URL = {https://www.documentation.ird.fr/hor/fdi:010055945},
}