A model for Iapetan rifting of Laurentia based on Neoproterozoic dikes and related rocks
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Published:September 01, 2010
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CiteCitation
William C. Burton, Scott Southworth, 2010. "A model for Iapetan rifting of Laurentia based on Neoproterozoic dikes and related rocks", From Rodinia to Pangea: The Lithotectonic Record of the Appalachian Region, Richard P. Tollo, Mervin J. Bartholomew, James P. Hibbard, Paul M. Karabinos
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Geologic evidence of the Neoproterozoic rifting of Laurentia during breakup of Rodinia is recorded in basement massifs of the cratonic margin by dike swarms, volcanic and plutonic rocks, and rift-related clastic sedimentary sequences. The spatial and temporal distribution of these geologic features varies both within and between the massifs but preserves evidence concerning the timing and nature of rifting. The most salient features include: (1) a rift-related magmatic event recorded in the French Broad massif and the southern and central Shenandoah massif that is distinctly older than that recorded in the northern Shenandoah massif and northward; (2) felsic volcanic centers...
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Contents
From Rodinia to Pangea: The Lithotectonic Record of the Appalachian Region

GeoRef
- Adirondack Anorthosite
- Appalachians
- Canada
- chemical composition
- cratons
- dike swarms
- dikes
- Eastern Canada
- faults
- felsic composition
- Grenvillian Orogeny
- Iapetus
- igneous rocks
- intrusions
- Laurentia
- mafic composition
- mantle plumes
- Neoproterozoic
- Newfoundland
- Newfoundland and Labrador
- North America
- Northern Appalachians
- plate tectonics
- plutonic rocks
- Precambrian
- Proterozoic
- Reading Prong
- rifting
- Rodinia
- spatial distribution
- strike-slip faults
- temporal distribution
- transform faults
- triple junctions
- United States
- upper Precambrian
- volcanic rocks
- Sutton Mountains
- Tibbit Hill Formation
- Long Range dike swarm
- French Broad
- Shenandoah Massif
- French Broad Massif