The following maps are presented in two formats, Adobe Portable Document Format (.pdf) and gif files. Viewing with the Acrobat reader will result in a more detailed image suitable for printing. If you do not already have a version of the Acrobat reader, you can download it free of charge from the Adobe Acrobat Page.
|Figure 1||Figure 2||Figure 3||Figure 4||Figure 5|
Figure 1 - Simplified terrane map of southeast Alaska and northern British Columbia. Boxed area is that of Figure 2. Line of cross section shows location of top cross section of Figure 4.
Figure 2 - Geologic map of the region immediately adjacent to the ACCRETE core corridor (Dundas Islands to Stewart). Shows location of portable seismometer stations.
Figure 3 - Same scale as geologic map of Figure 2, showing strike and dip of foliations, and lineation directions and plunges. Note dome and basin pattern of Paleogene arc area. Note also that structures south of the core corridor, within the Paleogene arc, plunge into the line of seismic section. Note apparent strain gradient defined by foliations in Alaska, west of Coast shear.
Figure 4 - Top. Cross section showing one possible configuration of terraneboundaries for along line shown on map of Figure 1. No verticalexaggeration. Seismic results not yet incorporated into this section.
Bottom. Detail of cross section across Paleogene arc, after Hutchison(1983). Location is parallel to and southeast of Portland Inlet Schematicrepresentation of ages based on published and unpublished data.
Figure 5 - Terranes and major rock types of the region containing the ACCRETE study area, between Petersburg, AK, and Prince Rupert, BC. The midpoint line of the Coast Shear Zone is indicated. Heavy dashed and solid line shows protolith boundary of the mid-Cretaceous thrust system.
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Last update: April 22, 1996