A correspondence of altimetric gravity texture to abyssal hill morphology along the flanks of the Southeast Indian Ridge

Details A correspondence of altimetric gravity texture to abyssal hill morphology along the flanks of the Southeast Indian Ridge A correspondence of altimetric gravity texture to abyssal hill morphology along the flanks of the Southeast Indian Ridge

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30xsde8g&link_type=abstract

Geophysical Research Letters, Volume 30, Issue 24, pp. SDE 8-1, CiteID 2269, DOI 10.1029/2003GL018913

Physics

Geophysics

5

Geodesy And Gravity: Standards And Absolute Measurements, Marine Geology And Geophysics: Gravity, Marine Geology And Geophysics: Midocean Ridge Processes, Marine Geology And Geophysics: Seafloor Morphology And Bottom Photography

Scientific paper

We examine the relationship between altimetric gravity and abyssal hill textures along the flanks of Southeast Indian Ridge, where previous studies observed a progressive west-to-east increase in abyssal hill roughness and scales. Such a relationship is often considered unlikely because abyssal hills are typically smaller than upward continuation filter scales. However, our results, which exclude ridges, fracture zones and large pseudofaults, show that altimetric gravity roughness and characteristic scales in this region also increase from west to east and, at the largest scales, gravity texture exhibits ridge-parallel lineaments. Synthetic profiles also demonstrate how the texture parameters of a filtered field are related to those of the unfiltered field, particularly where the characteristic scale of the latter is smaller than the filter length.

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