About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 49 (1965)

Issue: 9. (September)

First Page: 1571

Last Page: 1571

Title: Reef Trends of Mississippian Ratcliffe Zone, Northeastern Montana and Northwestern North Dakota: ABSTRACT

Author(s): Alan R. Hansen

Article Type: Meeting abstract

Abstract:

Algal pelletoid reef deposits comprise the oil-productive rocks of the Ratcliffe zone in the subject area. These rocks were formed in a moderate- to high-energy environment near the wester limits of the Williston basin.

The reef trends were partially controlled by older faults or hinge lines which were re-activated during Ratcliffe time.

End_of_Article - Last_Page 1571------------

Copyright 1997 American Association of Petroleum Geologists