Three steps of serpentinization in an eclogitized oceanic serpentinization front (Lanzo Massif – Western Alps)

@article{Debret2013ThreeSO,
  title={Three steps of serpentinization in an eclogitized oceanic serpentinization front (Lanzo Massif – Western Alps)},
  author={Baptiste Debret and Christian Nicollet and Muriel Andr{\'e}ani and St{\'e}phane Schwartz and Marguerite Godard},
  journal={Journal of Metamorphic Geology},
  year={2013},
  volume={31}
}
The Lanzo peridotite massif is a fragment of oceanic lithosphere generated in an ocean–continent transition context and eclogitized during alpine collision. Despite the subduction history, the massif has preserved its sedimentary oceanic cover, suggesting that it may have preserved its oceanic structure. It is an exceptional case for studying the evolution of a fragment of the lithosphere from its oceanization to its subduction and then exhumation. We present a field and petrological study… 

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References

SHOWING 1-10 OF 80 REFERENCES

The Monviso ophiolitic massif (Western Alps), a section through a serpentinite subduction channel.

The exhumation of subducted lithosphere requires a mechanically weak zone at the interface between the subduction plane and the rigid overlying mantle peridotites with a viscosity greater than 10 20

Structure and petrology of the Lanzo peridotite massif (Piedmont Alps)

The Lanzo massif consists of a 150 km 2 body of plagioclase Iherzolite, situated along the inner arc of the Alps, at the triple junction of the Ivrea zone, the Sesia-Lanzo zone, and the Pennine zone,

Eclogitization of the Monviso ophiolite (W. Alps) and implications on subduction dynamics

To constrain deep (40–100 km) subduction dynamics, extensive P–T data are provided on the eclogitic Monviso ophiolite derived from the subducted Liguro‐Piemontese oceanic lithosphere (which was

REVISITING THE LANZO PERIDOTITE (NW-ITALY): 'ASTHENOSPHERIZATION' OF ANCIENT MANTLE LITHOSPHERE

In this paper, we compiled previous investigations and summarize recent results to show that the Lanzo peridotite records a sequence of deep lithospheric igneous events that largely obliterated the

Serpentinites in an Alpine convergent setting: Effects of metamorphic grade and deformation on microstructures

Alpine antigorite serpentinites associated with eclogites were investigated to determine if they can be used as indicators of the tectono-metamorphic conditions during subduction and exhumation
...