Layered intrusions of the Duluth Complex, Minnesota, USA
Layered intrusions
By: J.D. Miller Jr. and E.M. Ripley
Edited by: Cawthorn R.G.
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Abstract
The Duluth Complex and associated subvolcanic intrusions comprise a large (5000 km2) intrusive complex in northeastern Minnesota that was emplaced into comagmatic volcanics during the development of the 1.1 Ga Midcontinent rift in North America. In addition to anorthositic and felsic intrusions, the Duluth Complex is composed of many individual mafic layered intrusions of tholeiitic affinity. The cumulate stratigraphies and cryptic variations of six of the better exposed and better studied intrusions are described here to demonstrate the variability in their cumulus mineral paragenesis.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Layered intrusions of the Duluth Complex, Minnesota, USA |
| Series title | Layered intrusions |
| Year Published | 1996 |
| Language | English |
| Publisher | Elsevier; Developments in Petrology |
| Publisher location | 15 |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Layered intrusions |
| First page | 257 |
| Last page | 301 |
| Google Analytic Metrics | Metrics page |