MC Prestack Joint Inversion S-Impedance Result
Neuquén Basin - Development
• 3 Stages
•
•
•
Synrift (Late Triassic - Early Jurassic)
Postrift (Early Jurassic - Early Cretaceous)
Foreland (Late Cretaceous - Paleocene)
Cenozoic Stages
•
Extensive I (Oligocene - Early Miocene)
(A) Synrift Phase
Shadow marine
Contrant
Bankone
Very low or arrested
subduction
Marianas-type
subduction
(C) Foreland Phase
Deve marine
Comment
Mechanical subsidence
n Fault-bounded troughs
and half-grabens
a Volcanic, continental (+
marine) sedimentation in
depocentres
(B) Postrift Phase
Deep Maine
Show marine
Centiments
Regional thermal
subsidence
Mostly marine and
continental sedimentation
Periodically separated
from the proto-Pacific by
uplift and relative
sea-level fall
= Compressional tectonics
Synorogenic continental
sedimentation
•
Compressive I (Middle - Late Miocene)
•
Extensive II (Pliocene - Quaternary)
•
Compressive II (Late Quaternary - Today)
Andean-type
subduction
Pathway for latest Cretaceous
Atlantic transgression
Howell et al. (2005)
RCP0
In pursuit of new ideas
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