Development of the Gulf of Guayaquil (Ecuador) during the Quaternary as an effect of the North Andean block tectonic escape

  title={Development of the Gulf of Guayaquil (Ecuador) during the Quaternary as an effect of the North Andean block tectonic escape},
  author={C{\'e}sar Witt and J. Bourgois and François Michaud and M. G. D{\'a}vila Ord{\'o}{\~n}ez and Nelson Jim{\'e}nez and Marc Sosson},
Interpretation of industrial multichannel seismic profiles and well data are used to identify the main tectonic features of the Gulf of Guayaquil (GG) area. These include two E‐W trending major detachments: the Posorja and the Jambelí detachment systems, which represent half grabens with oppositely dipping detachments, to the south and to the north, respectively. The NE‐SW trending Puná‐Santa Clara fault system developed as a transfer fault system between the Posorja and the Jambelí detachments… 

Forearc basin formation in the tectonic wake of a collision-driven, coastwise migrating crustal block: The example of the North Andean block and the extensional Gulf of Guayaquil-Tumbes Basin (Ecuador-Peru border area)

Trench-parallel extensional strain resulting from the northward drift of the North Andean block has controlled the tectonic evolution of the Gulf of Guayaquil-Tumbes Basin, at least for the past

Quaternary sedimentation and active faulting along the Ecuadorian shelf: preliminary results of the ATACAMES Cruise (2012)

AbstractSelected high-resolution seismic-reflection profiles and multibeam bathymetry acquired along the convergent Ecuador margin during the ATACAMES cruise on onboard the R/V L’Atalante

A Review on Tectonic Record of Strain Buildup and Stress Release across the Andean Forearc along the Gulf of Guayaquil-Tumbes Basin (GGTB) near Ecuador-Peru Border

Gravimetric and geologic data show that the reactivation of the Neogene Interandean depression and/or the ~75 - 65 Ma ophiolite suture into the modern dynamic of the Andes controlled the Gulf of

GNSS Constraints to Active Tectonic Deformations of the South American Continental Margin in Ecuador

The integration of the GPS and seismic data evidences that highest rates of deformation and the highest tectonic hazards in Ecuador are linked: to the subduction zone located in the coastal area; to the Pallatanga transfer fault; and to the Eastern Andes Sub-Andean faults.

Partitioning of oblique convergence in the Northern Andes subduction zone: Migration history and the present‐day boundary of the North Andean Sliver in Ecuador

Along the Ecuadorian margin, oblique subduction induces deformation of the overriding continental plate. For the last 15 Ma, both exhumation and tectonic history of Ecuador suggest that the

Active Tectonics and Earthquake Geology Along the Pallatanga Fault, Central Andes of Ecuador

Based on new geological data and the analysis of a 4 m spatial resolution Digital Elevation Model (DEM), we provide a detailed and comprehensive description of section of the Chingual Cosanga

Subduction of an extinct rift and its role in the formation of submarine landslides in NW South America

Abstract On the eastern margin of the Panama Basin, the Nazca oceanic plate converges towards the continental plate of South America at approximately 53 mm a−1. Subduction processes are accompanied

Tectonic record of strain buildup and abrupt coseismic stress release across the northwestern Peru coastal plain, shelf, and continental slope during the past 200 kyr

200 kyr, both segments uplifted at high rates of 10 to 20 mm yr � 1 through tectonic pulses coeval with the eustatic deglacial sea level rises of isotope stage 1 and warm isotope substage 5e,



Geodynamics of the northern Andes: Subductions and intracontinental deformation (Colombia)

New regional seismological data acquired in Colombia during 1993 to 1996 and tectonic field data from the Eastern Cordillera (EC) permit a reexamination of the complex geodynamics of northwestern

Structure and tectonic history of the Eastern Panama basin

New marine geophysical data allow the preparation of revised bathymetric and magnetic anomaly charts of the Panama Basin and demonstrate that the eastern part of the basin, between the fracture zone

Late Quaternary kinematics of the Pallatanga strike-slip fault (Central Ecuador) from topographic measurements of displaced morphological features

The northeast-trending Pallatanga right-lateral strike-slip fault runs across the Western Cordillera connecting N50°E-N70°E trending normal faults in the Gulf of Guayaquil with N-S reverse faults in

Geomorphic and geologic evidence of ongoing uplift and deformation in the M! erida Andes, Venezuela

The M! erida Andes is a mountain chain that trends SW–NE in western Venezuela, extending for some 350 km from the Colombian–Venezuelan border to the city of Barquisimeto. Its highest peaks reach 5000

Syntectonic Cenozoic sedimentation in the northern middle Magdalena Valley Basin of Colombia and implications for exhumation of the Northern Andes

Development of the Colombian Middle Magdalena Valley Basin (MMVB) was determined by late Cretaceous-early Eocene uplift of the Central Cordillera to the west, and subsequent transferal of deformation