@incollection{fdi:010017884, title = {{E}nvironmental and tectonic influence on growth and internal structure of a fringing reef at {T}asmaloum ({SW} {E}spiritu {S}anto, {N}ew {H}ebrides island arc, {SW} {P}acific)}, author = {{C}abioch, {G}uy and {T}aylor, {F}.{W}. and {R}{\'e}cy, {J}acques and {L}awrence {E}dwards, {R}. and {G}ray, {S}.{C} and {F}aure, {G}. and {B}urr, {G}.{S}. and {C}orr{\`e}ge, {T}hierry}, editor = {}, language = {{ENG}}, abstract = {{S}ubduction of the {A}ustralian {P}late has caused rapid uplift of the central {N}ew {H}ebrides island arc (15° {S}, {SW} {P}acific). {T}he d'{E}ntrecasteaux ridge system, a prominent bathymetric feature on the downgoing plate, is underthrusting the central part of the {N}ew {H}ebrides arc. {T}he coastlines of most islands are characterized by emerged {H}olocene coral reef terraces. {A} maximum uplift rate of 6 mm/yr occurs along the south-west coast of {E}spiritu {S}anto, near the plate boundary. {T}o investigate the {L}ate quaternary neotectonic and enviornmental evolution of the uplifted fringing reefs, we drilled the emerged {H}olocene reef at {T}asmaloum ({SW} {E}spiritu {S}anto) to depths as great as 40-45 m. {C}oral samples from various levels were dated by 230{T}h and 14{C}, as described elsewhere, and the internal structure of the reefs was studied. {P}reliminary palaeoecological and sedimentological data indicate the following. {F}irst, the coral reef colonized a substrate and began to grow by 24 ka on weakly indurated calcareous sand beds, which probably formed during the {L}ate {P}leistocene and are possibly as old as 30 ka or more. {T}hese sand levels could represent the deep fore-reef area of an older reef, at present behind the uplifted {H}olocene terraces. {S}econd, the biofacies and coral ages from the reef sequence, which is continuous from the last glacial maximum ({LGM}), provide a view of the internal structure : between 24 and 12-10 ka, coral levels, composed mainly of #{A}cropora$ gr. #hyacinthus$ and gr. #cytherea$ (accompanied by a few #{G}alaxea$ gr. #fascicularis$), constitute medium- to high-energy assemblages, reflecting relatively deeper and more protected environments. {H}owever, at a few levels, acroporid build-ups of #{A}cropora$ gr. #danai$/#robusta$ indicate high-energy environment alternation... ({D}'apr{\`e}s r{\'e}sum{\'e} d'auteur)}, keywords = {{RECIF} {FRANGEANT} ; {RECIF} {CORALLIEN} ; {STRUCTURE} ; {SUBSTRAT} ; {FACIES} ; {PALEOENVIRONNEMENT} ; {SEDIMEN} {TOLOGIE} ; {GEOMORPHOLOGIE} ; {TECTONIQUE} ; {NEOTECTONIQUE} ; {FORAGE} ; {DATATION} ; {QUATERNAIRE} ; {HOLOCENE} ; {VANUATU} ; {TASMALOUM}}, booktitle = {{R}eefs and carbonate platforms of the {P}acific and {I}ndian {O}cean}, numero = {25}, pages = {261--277}, address = {{O}xford}, publisher = {{I}nternational {A}ssociation of {S}edimentologists}, series = {{S}pecial {P}ublications - {I}nternational {A}ssociation of {S}edimentologists}, year = {1998}, URL = {https://www.documentation.ird.fr/hor/fdi:010017884}, }