The southern Washington Cascades conductor: A previously unrecognized thick sedimentary sequence?

American Association of Petroleum Geologists Bulletin
By: , and 

Links

Abstract

Geophysical studies in the southern Washington Cascades have outlined a possible, previously unrecognized sequence of sedimentary rocks. These postulated sedimentary units are interpreted to correspond to at least the upper section of a low-resistivity (high-conductivity) assemblage of rocks at depths of 1-10 km and with thicknesses up to 15 km that called the southern Washington Cascades conductor. Structure on the upper surface of this conductive assemblage correlates in some places with anticlines that bring Tertiary marine rocks near the surface. The geometry of the conductive rocks consists of a east-dipping, low-angle wedge that thickens to the north and with an undulating upper surface corresponding to the anticlines. Geothermal fluids may be a contributing factor to low resistivities in the deeper parts of the conductive section. -from Authors

Study Area

Publication type Article
Publication Subtype Journal Article
Title The southern Washington Cascades conductor: A previously unrecognized thick sedimentary sequence?
Series title American Association of Petroleum Geologists Bulletin
DOI 10.1306/BDFF8A56-1718-11D7-8645000102C1865D
Volume 76
Issue 10
Year Published 1992
Language English
Publisher American Association of Petroleum Geologists
Description 17 p.
First page 1569
Last page 1585
Country United States
State Washington
Other Geospatial southern Washington Cascades
Google Analytic Metrics Metrics page
Additional publication details