About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 17 (1933)

Issue: 9. (September)

First Page: 1107

Last Page: 1132

Title: Studies in Paleogeology

Author(s): A. I. Levorsen (2)

Abstract:

Paleogeology is defined as the science of the geology of ancient time. Paleogeologic maps are presented which show the areal geology and the regional structure of the region of the United States at the beginning of Mississippian time; in early Pennsylvanian time; and at the beginning of Cretaceous (Comanche) time. Similar maps may be prepared of other surfaces exposed during geologic time and they may be compiled for other countries. These maps have a wide application and give a different picture of geologic history.

Oil and gas are found as high in their containing reservoir as it is possible for them to move. If true of the present, it must have been true in the past and a study of the changing areal and structural geology during geologic time becomes of prime importance. The earliest, therefore the most important, trap to form in many American petroleum provinces was a reservoir rock which was wedged out and overlapped by an impervious cap rock. Paleogeologic maps offer a means of locating these wedge edges and their application to petroleum geology opens a different approach to the problem of finding petroleum reserves.

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].