Multistage rifting evolution of the Colorado basin (offshore Argentina): Evidence for extensional settings prior to the South Atlantic opening

Juan Pablo Lovecchio; Sébastien Rohais; Philippe Joseph; Néstor D. Bolatti; Pedro R. Kress; Ricardo Gerster; Victor A. Ramos

doi:10.1111/ter.12351

journal article Sep 19, 2018

Multistage rifting evolution of the Colorado basin (offshore Argentina): Evidence for extensional settings prior to the South Atlantic opening

Juan Pablo Lovecchio

Sébastien Rohais Philippe Joseph Néstor D. Bolatti Pedro R. Kress Ricardo Gerster Victor A. Ramos

Terra Nova Vol. 30 No. 5 pp. 359-368 · Wiley

View at Publisher Save 10.1111/ter.12351

Abstract

AbstractThe identification of three independent rifting events in the Colorado basin area highlights the complexity of its Mesozoic rifting history, which ended in the Early Cretaceous with the opening of the South Atlantic Ocean. A first rifting event, associated with the extensional reactivation of previously compressive thrusts of the Ventania‐Cape fold belt, is transected by faults forming the main depocenters of the Colorado and possibly the adjacent Salado basin. The second and main rifting stage is correlated with the Early Jurassic Karoo rifting. In the Early Cretaceous, WNW–ESE extension produced NNE‐trending landward‐dipping faults, concentrated in the outer 100–200 km of the continental crust domain, possibly coeval with SDR emplacement. This is the first identification of three superimposed rifting settings in the southern South Atlantic realm and is key to understanding the complex Mesozoic breakup history of SW Gondwana.

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References

Details

Published: Sep 19, 2018
Vol/Issue: 30(5)
Pages: 359-368
License: View

Authors

J

Juan Pablo Lovecchio

YPF S.A. Offshore Exploration Buenos Aires Argentina; IFPEN Direction Georessources Rueil‐Malmaison France; IDEAN UBA‐CONICET Buenos Aires Argentina

S

Sébastien Rohais

IFPEN Direction Georessources Rueil‐Malmaison France

P

Philippe Joseph

IFPEN Direction Georessources Rueil‐Malmaison France

N

Néstor D. Bolatti

YPF S.A. Offshore Exploration Buenos Aires Argentina

P

Pedro R. Kress

YPF S.A. Offshore Exploration Buenos Aires Argentina

R

Ricardo Gerster

YPF S.A. Offshore Exploration Buenos Aires Argentina

V

Victor A. Ramos

IDEAN UBA‐CONICET Buenos Aires Argentina

Funding

Fundación YPF

Cite This Article

Juan Pablo Lovecchio, Sébastien Rohais, Philippe Joseph, et al. (2018). Multistage rifting evolution of the Colorado basin (offshore Argentina): Evidence for extensional settings prior to the South Atlantic opening. Terra Nova, 30(5), 359-368. https://doi.org/10.1111/ter.12351

Multistage rifting evolution of the Colorado basin (offshore Argentina): Evidence for extensional settings prior to the South Atlantic opening

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