Tectonic burial, thrust emplacement, and extensional exhumation of the Cabot nappe in the Appalachian hinterland of Cape Breton Island, Canada

Article Abstract:

The deformations in the Appalachian hinterland of Cape Breton Island, Canada, are characterized by thrusting events, metamorphic nappe emplacement, and extensional denudation during the Devonian-Carboniferous era. Thrusting events in Cape Breton Island during the Silurian era produced tectonic burial and metamorphism. Thrusting during the Devonian era produced the Cabot nappe over the greenschist-grade footwall rocks. The final exhumation of the nappe from the greenschist crustal region to the surface occurred during the Late Devonian era.

Geology, Stratigraphic, Stratigraphy, Devonian period

---

Comment on "Tectonic burial, thrust emplacement, and extensional exhumation of the Cabot nappe in the Appalachian hinterland of Cape Brenton Island, Canada" by Gregory Lynch

Article Abstract:

The interpretation of the tectonic burial, thrust emplacement and extensional exhumation of the Cabot nappe in the Appalachian hinterland of Cape Breton Island, Canada, is dependent only on generalizations. Furthermore, these interpretation create predictions that do not match present geological database. Geologic information on the region, however, do not support the idea that rocks of the Cabot nappe is part of a contiguous nappe.

---

Reply

Article Abstract:

Cabot nappe is a well-defined feature that contrasts with rocks which are adjacent to and outside the area. This disproves the idea that rocks in Cabot nape are part of a contiguous nappe. Furthermore, the area is geologically interesting since it reveals the process of Transport of high-grade rocks during exhumation. The position of the rocks also defines the limits of the nappe.

Rocks

Similar abstracts:

• Abstracts: Intracratonic, strike-slip partitioned transpression and the formation and exhumation of eclogite facies rocks: an example from the Musgrave Block, central Australia
• Abstracts: Alternating contractional and extensional events in the Alpujarride nappes of the Alboran Domain (Betics, Gibraltar Arc)
• Abstracts: Tectonic history of the eastern edge of the Alexander Terrane, southeast Alaska. GPS-determination of along-strike variation in Cascadia margin kinematics: implications for relative plate motion, subduction zone coupling, and permanent deformation
• Abstracts: The Iapetus suture zone in England, Scotland and eastern Ireland: a reconciliation of geological and deep seismic data
• Abstracts: Late orogenic extension of the Betic Cordillera and the Alboran Domain: a lithospheric view. Comment on "Alternating contractional and extensional events in the Alpujarride nappes of the Alboran Domain (Betics, Gibraltar Arc)" by Juan C. Balanya et al

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.