U.S. Geological Survey

Geophysical Identification and Geological Implications of the Southern Alaska Magnetic Trough

By R.W. Saltus1, T.L. Hudson2 and F.H. Wilson3

U.S. Geological Survey Open-File Report 03-200

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Version 1.0

1U.S. Geological Survey, Denver, CO
2Applied Geology, Sequim, WA
3U.S. Geological Survey, Anchorage, AK

This report presents preliminary results of regional interpretation of aeromagnetic data for a distinctive geophysical feature : the southern Alaska magnetic trough. This poster presents the geophysical evidence for the extent and geometry of this magnetic feature as well as initial geological synthesis and combined geologic/geophysical modeling to examine the implications of this feature for the broad scale tectonic framework of southern Alaska.

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