1887

Abstract

Summary

The highly oblique convergence between the North American and Caribbean plates has yielded that the thickened crust of Bahamas banks impinges into northern Hispaniola developing a narrow band of compressive deformation (northern Hispaniola margin) and a thick foreland basin (Hispaniola-Caicos basin). Approximately 280 km of 2D MCS profiles and 17000 km2 of high-resolution, systematic swath bathymetry data were recorded in the northern Hispaniola offshore margin in November-December of 2013 (NORCARIBE cruise). This is the first time that this region is explored systematically with high-resolution multibeam bathymetry. Using new multibeam bathymetry and MCS data, combined we have studied the along- and across-strike variations of the shallower structure along a 330 km-long segment of the northern Hispaniola margin. Pronounced along-strike changes in structural style observed in the northern Hispaniola margin and Hispaniola-Caicos basin are associated with the active oblique underthrusting/indentation of the irregular boundary of the southernmost slope of the Mouchouir and Silver banks. The upper slope of the northern Hispaniola margin exhibits good economic potential associated to thick slope basins and terraces where is observable a continuous and prominent BSR. Preliminary results provide well- defined targets to carry out future exploration studies.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201412750
2015-06-01
2024-03-28
Loading full text...

Full text loading...

References

  1. Dillon, W.P., Edgar, N.T., Scanlon, K.M., Coleman, D.F.
    [1996] A review of the tectonic problems of the strike-slip northern boundary of the Caribbean Plate and examination by Gloria. Geology of the United States’ Seafloor: The view from GLORIA, 9, 135–164.
    [Google Scholar]
  2. Ditty, P.S., Harmon, C.J., Pilkey, O.H., Ball, M.M., Richardson, E.S.
    [1977] Mixed terrigenous-carbonate sedimentation in the Hispaniola-Caicos turbidite basin. Marine Geology24, 1–20.
    [Google Scholar]
  3. Dolan, J.F., Mullins, H.T., Wald, D.J.
    [1998] Active tectonics of north-central Caribbean: Oblique collision, strain partitioning, and opposing subducted slabs. In: Dolan, J. and Mann, P. (Eds.)Active Strike-slip and Collisional Tectonics of the Northern Caribbean Plate Boundary Zone. Geol. Soc. Am. Special Paper 326, 1–62.
    [Google Scholar]
  4. Hernáiz HuertaP.P, Pérez-Valera, F. Abad, M., Monthel, J., Diaz de NeiraA.
    [2011]. Málanges and olistostromes in the Puerto Plata area (northern Dominican Republic) as a record of subduction and collisional processes between the Caribbean and North-American plates. Tectonophysics568–569, 266–281.
    [Google Scholar]
  5. Mann, P., Calais, E., Ruegg, J-C., DeMets, C., Jansma, P.E.
    [2002] Oblique collision in the north-eastern Caribbean from GPS measurements and geological observations. Tectonics2(6), 1057, doi:10.1029/2001TC0011304, 2002.
    https://doi.org/10.1029/2001TC0011304 [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201412750
Loading
/content/papers/10.3997/2214-4609.201412750
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error