UIS Commission on Karst Hydrogeology and Speleogenesis
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Karstbase Bibliography Database

Sasowsky, Ira D.
White, William B.; Culver, David C.
Paleomagnetic records in cave sediments
Encyclopedia of Caves

The Earth’s magnetic field reverses polarity at irregular intervals in the range of a few hundred thousand years. Magnetic mineral grains suspended in cave waters orient themselves with respect to the prevailing field direction when they settle from the water and then become locked in place in the resulting pile of cave sediment. Because the time scale of magnetic reversals is well-established, measurement of magnetic orientation in cave sediments and the location of magnetic reversals within sediment piles can be used to date the deposits and thus provide a minimum age for the cave.

paleomagnetism; ages of caves; clastic sediments; magnetic reversals
Sasowsky, Ira D., 2012, Paleomagnetic records in cave sediments , 585 - 590 http://www.sciencedirect.com/science/article/pii/B9780123838322000864, PDF