Method of dating different levels in a terrestrial geological be

Details Method of dating different levels in a terrestrial geological be Method of dating different levels in a terrestrial geological be

1993-07-28

1995-04-18

Strecker, Gerard R.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

By magnetic means

G01V 326, G01V 340

Patent

active

054081831

ABSTRACT:
The method of the invention consists in measuring remanent magnetization along a borehole drilled through a geological bed, in detecting the set of reversals in the remanent magnetization, in measuring the induced magnetization at the various levels in said bed, in detecting maxima in the induced magnetization, and in correlating these measurements with known dates, firstly of reversals in the earth's magnetic field and secondly of terrestrial phenomena that have given rise to concentrations of highly magnetic substances, thus making it possible to give dates to the various levels of the bed. The method is particularly applicable to oil prospecting.

REFERENCES:
patent: 3369174 (1968-02-01), Groenendyke et al.
patent: 3965413 (1976-06-01), Yungul
patent: 4071815 (1978-01-01), Zemanek, Jr.

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