@article{fdi:010053422,
  title = {{R}evisiting the {Q}uaternary development history of the western {N}ew {C}aledonian shelf system : from ramp to barrier reef},
  author = {{M}ontaggioni, {L}. {F}. and {C}abioch, {G}uy and {T}houveny, {N}icolas and {F}rank, {N}. and {S}ato, {T}. and {S}{\'e}mah, {A}nne-{M}arie},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he present paper is based on the study of a new core ({T}enia 3,151.20 m long) and revisitation of previous core data from the western {N}ew {C}aledonian barrier reef. {B}ased on variations in lithology and stable isotope signatures, and the occurrence of unconformity surfaces, the {T}enia 3 sequence is subdivided into ten units, regarded as deposited during interglacial, high sea levels. {F}ive detrital and two framework facies are delineated using their biological and textural attributes, including coral growth forms and assemblages. {T}hese facies are interpreted as representative of outer to inner carbonate shelf (ramp to barrier reef) environments. {V}ariations in the facies within each stratigraphic unit occur mainly as vertical transitions from lower energy (and probably deeper) to higher energy (probably shallower) settings. {T}he succession of depositional events is reconstructed using all available age criteria including lithostratigraphy, magnetostratigraphy, uranium-series dating, and nannofossil biostratigraphy. {S}hallow-water, coral communities appear to have been developed as soon as carbonate deposition started at around 1.2 million years ({M}a), but the initiation of typical coral reef tracts is likely to have occurred not prior to 0.40 million years during {M}arine {I}sotope {S}tage ({MIS}) 11. {C}arbonate deposition previous to {MIS} 11 is considered to have operated along an open shelf margin, i.e. a ramp or non-rimmed platform. {B}ased on the re-examination of the core dataset previously acquired from the {N}ew {C}aledonian reefs, the coral communities, dominated by massive forms (mainly poritids) are assumed to have remained stable in composition over the past 1.4 {M}a. {S}imilarly, as indicated by a preliminary study of pollen assemblages in the core, the composition of terrestrial flora, dominated by {P}odocarpaceae and {A}raucariaceae, has not apparently suffered significant change over the past 1 {M}a, and reflects climate conditions cooler and drier than today. {M}ean subsidence rates are derived tentatively over the past 1 {M}a from the stratigraphic position at present reached by the top of depositional units; mean rates of <= 0.08 mm yr(-1) for the western {N}ew {C}aledonian margin are consistent with past sea-level estimates. {T}he {Q}uaternary depositional history of the {N}ew {C}aledonian shelf margin appears to have been controlled by both the amplitude of sea-level changes and by differing vertical tectonic movements. {C}omparison between the depositional shelf histories from western {N}ew {C}aledonia, north-eastern {A}ustralia, southern {B}elize and the {R}yukyu {I}slands supports the assumption that coral populations over the early and mid {P}leistocene developed as non-reefal communities along ramp systems, not forming continuous outer-shelf reef rims. {A}t a global scale, {Q}uaternary reef-rimmed platforms are likely to have initiated after the {M}id-{P}leistocene {C}limate {T}ransition, from marine isotope stage 11, at about 0.4 {M}a.},
  keywords = {carbonate shelf ; coral reef growth ; paleoenvironments ; ramp ; barrier reef ; {P}leistocene ; {N}ew {C}aledonia ; western {P}acific},
  booktitle = {},
  journal = {{M}arine {G}eology},
  volume = {280},
  numero = {1-4},
  pages = {57--75},
  ISSN = {0025-3227},
  year = {2011},
  DOI = {10.1016/j.margeo.2010.12.001},
  URL = {https://www.documentation.ird.fr/hor/fdi:010053422},
}