About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract

Volume: 50 (1966)

Issue: 10. (October)

First Page: 2260

Last Page: 2268

Title: Reef Trends of Mississippian Ratcliffe Zone, Northeast Montana and Northwest North Dakota

Author(s): Alan R. Hansen (2)

Abstract:

Algal pelletoid reef deposits comprise the main oil-productive lithologic type in the Mississippian Ratcliffe zone of the Charles Formation, northeast Montana and northwest North Dakota. These rocks were formed in a moderate- to high-energy environment near the central part of the Williston basin.

The reef deposits appear to have formed in slightly shallower parts of the shallow Ratcliffe sea. These low-relief submarine highs were controlled partly by relatively small movements along fault trends and lines of structural weakness that were active intermittently during Paleozoic time.

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].