The Roza flow of the Columbia River Basalt group in
Washington State U.S.A. extruded at about 15 Ma during
intermediate geomagnetic polarity. The Roza is underlain
by normal polarity flows and overlain by reversed units.
The Roza is an extensive flow, up to 60 in thick. As the
remanence-blocking isotherms...
In this thesis anomalous downcore shallowing of paleomagnetic
inclinations is interpreted to be caused by sediment compaction. Thus,
compaction-induced inclination shallowing may influence tectonic
reconstructions that are based on inclinations from deep-sea sediment
cores.
Progressive downcore shallowing of the remanent inclination was
observed in a 120-m section of Plio- Pleistocene...
An understanding of the tectonic history of the Klamath Mountains
is crucial for a valid paleogeographic reconstruction of the Pacific
Northwest. However, prior to this study there were very few
paleomagnetic (PM) data from the Klamath Mountains (KN), which resulted
in conflicting interpretations about the role of the KM province...