About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 53 (1969)

Issue: 1. (January)

First Page: 136

Last Page: 154

Title: Correlation, Faulting, and Metamorphism of Michigan and Appalachian Basin Salt

Author(s): Charles H. Jacoby (2)

Abstract:

In the Salina Formation (Upper Silurian) the B unit can be divided into three subunits which are correlative from Michigan to the Appalachian basin. Underlying the area of Retsof, New York, the B-2 subunit contains five mappable salt beds that appear to correlate with similar beds in the Michigan basin. The B-3 subunit, or the "Retsof" bed, has the greatest continuity of any of the salt beds of the B unit. The D unit also has been separated into three subunits, although the lower subunit, D-1 salt, is absent in many areas of Ohio and Michigan. At Watkins Glen, New York, it was necessary to subdivide the F unit into three subunits in order to facilitate correlations where two fault systems are present.

Recently electric logging techniques have made the detection of faults possible by correlation of repeat sections of Salina carbonate rocks in the area of Watkins Glen, New York. Many of the complex structural salt features of that area are being resolved by the use of electric logs. Faulting in bedded salt is illustrated graphically by a pictorial review of the exposures created in salt beds during the driving of a sloping tunnel through the B-2 unit underlying the Retsof mine.

In some areas where bedded salt is present, the major anomalies are due to the solution of the salt beds by meteoric waters which resulted in the formation of slumps. In other areas, such as Retsof, New York, Cleveland, Ohio, and Watkins Glen, New York, faulting is the major structural disturbance. At Ludlowville, New York, geothermal heat and stresses associated with the formation of the Portland Point anticline have caused folding and flowage to form a metamorphosed salt.

Pay-Per-View Purchase Options

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

Protected Document: $10
Internal 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].