About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 49 (1965)

Issue: 9. (September)

First Page: 1398

Last Page: 1409

Title: Fundamental Transcurrent Faulting in Northern Rocky Mountains

Author(s): Jan G. Smith (2)

Abstract:

Structural patterns developed throughout western Montana and northern Idaho indicate that sinistral transcurrent movements have played an important role in the tectonic development of the Northern Rocky Mountains Province. Transcurrent movements were concentrated along a series of deep-seated, fundamental shear zones that trend west-northwestward from central Montana and cut obliquely beneath the more northerly trends of the main Cordilleran mobile belt. The shear zones (megashears), which also accommodated considerable vertical movements, are expressed at the surface as a series of outstanding structural and topographic lineaments that are called the Lewis and Clark lineaments.

Pay-Per-View Purchase Options

The article is available through a document delivery service. Explain these Purchase Options.

Watermarked PDF Document: $14
Open PDF Document: $24

AAPG Member?

Please login with your Member username and password.

Members of AAPG receive access to the full AAPG Bulletin Archives as part of their membership. For more information, contact the AAPG Membership Department at [email protected].