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The Jeanie Point complex revisited

January 1, 1984

The so-called Jeanie Point complex is a distinctive package of rocks within the Orca Group, a Tertiary turbidite sequence. The rocks crop out on the southeast coast of Montague Island, Prince William Sound, approximately 3 km northeast of Jeanie Point (loc. 7, fig. 44). These rocks consist dominantly of fine-grained limestone and lesser amounts of siliceous limestone, chert, tuff, mudstone, argillite, and sandstone (fig. 47). The Jeanie Point rocks also differ from those typical of the Orca Group in their fold style. Thus, the Orca Group of the area is isoclinally folded on a large scale (tens to hundreds of meters), whereas the Jeanie Point rocks are tightly folded on a 1- to 3- m-wavelength scale (differences in rock competency may be responsible for this variation in fold style).

Publication Year 1984
Title The Jeanie Point complex revisited
DOI 10.3133/70180305
Authors Julie A. Dumoulin, Marti L. Miller
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Circular
Series Number 868
Index ID 70180305
Record Source USGS Publications Warehouse
USGS Organization Alaska Science Center