Deep sea diapirs and bottom simulating reflector in Fairway Basin (SW Pacific)   总被引：1，自引：0，他引：1  

Auzende  Jean Marie  Van de Beuque  Sabrina  Dickens  Gerald  François  Caroline  Lavoy  Yves  Voutay  Olivier  Exon  Neville 《Marine Geophysical Researches》2000,21(6):579-587

A recent swath-bathymetry and geophysical survey of the R/V L'Atalante in the Fairway Basin between Australia and New Caledonia allowed to confirm the Cretaceous age of the creation of the basin by continental stretching. This first stage of opening of the Fairway Basin is associated with the deposition of a continuous salt/mud layer feeding today numerous diapirs, some of them piercing the 3 to 4 km thick sedimentary cover and reaching the seafloor. In close link with this salt/mud layer a Bottom Simulating Reflector indicator of gas hydrates level occupies a 70000 km² surface at about 500 to 600 m-depth beneath the sea floor. The coexistence of both BSR and diapirs suggests a thermogenic better than biogenic origin for the gas hydrates horizon.  相似文献