Paleomagnetism of the Mississippi Valley-type Zn-Pb deposits of the Silesian-Cracow area, Poland
Prace - Panstwowego Instytutu Geologicznego
By: David T. A. Symons, D. F. Sangster, and D. L. Leach
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Abstract
Paleomagnetic analysis of zinc-lead ore and host rocks from 35 sites in three mines and several quarries was completed using alternating field and thermal step demagnetization and saturation isothermal remanent magnetization methods. Paleomagnetic conglomerate, breccia and fold tests were used to test for remanence stability. Most limestone and dolostone sites of the Middle Triassic Muschelkalk Formation carry a dual-polarity primary or diagenetic Middle to Upper Triassic remanence. Late dolomite and Mississippi Valley-type (MVT) mineralization from 14 sites carry a dual-polarity Tertiary magnetization that is shown to be post-brecciation and syndeformational by the paleomagnetic tests. This age supports gravity-driven fluid flow models for ore genesis that are associated with the Alpine orogeny.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Paleomagnetism of the Mississippi Valley-type Zn-Pb deposits of the Silesian-Cracow area, Poland |
| Series title | Prace - Panstwowego Instytutu Geologicznego |
| Volume | 154 |
| Year Published | 1996 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Prace - Panstwowego Instytutu Geologicznego |
| First page | 157 |
| Last page | 161 |
| Google Analytic Metrics | Metrics page |