National Park Service Geologic Map of Kenai Fjords National Park U.S. Department of the Interior Geologic Resources Inventory Alaska Natural Resource Stewardship and Science
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(( Qao Outwash of the Neoglacial age (Holocene) ( Poorly to moderately-sorted gravel, cobbles, sand, and silt (( (( ( ( (( ( (( ( Qs ( ( ( (( ( (((( Qgn Glacial deposits of the Naptowne and Brooks Lake Glaciations (Pleistocene) ( (( (( (( (( ( (( (( Kvs ( ( (( Poorly-sorted gravel, sand, clay, and boulders ( (( (( MZg (( (( Qogo Outwash associated with older glacial deposits (Pleistocene) (( (( (( ( Poorly to moderately-sorted gravel, cobbles, sand, and silt (( KMm ( (( NPS Boundary (( Qch Moraine of the Caribou Hills Glaciation (Pleistocene) ( Qs Hummocky hills of poorly-sorted gravel, sand, boulders, and clay
( Tgh Granitic rocks of Harding Icefield region (Eocene and Paleocene) ( (( ( @@ Infrastructure ( Granite, granodiorite, and minor tonalite Kvm City Kvs Point of Interest Top Orca Group, pillow basalt (Eocene) Pale- to dark-green basalt, and minor pillow breccia and tuff Road Geologic Lineament Line Features Tod Orca Group, sheeted basalt dikes (Eocene) Dark-green, gray, and brown basaltic, gabbroic, and dioritic dikes Lineament, known or certain Qs Togb Orca Group, gabbro (Eocene) Linear Dikes Medium- and dark-gray to green coarse-grained gabbro TKd - dikes and sills (Early Cretaceous to Early Tertiary), known or certain Dacite, rhyolite, andesite, and minor basalt Kvs Valdez Group, metasedimentary rocks, undivided (Upper Cretaceous) Faults Gray, thin- to thick-bedded turbiditic sandstone, siltstone, and shale
(( (( (( Thrust fault, known or certain, dashed where approximately located, dotted where concealed Kvvs Valdez Group, interbedded metavolcanic and metasedimentary rocks (Upper Cretaceous) Semischistose volcanic breccia, tuff, sandstone, siltstone, and shale Normal fault, dashed where approximately located, dotted where concealed Kvt Valdez Group, aquagene tuff (Upper Cretaceous) Green to dark-gray, fine-grained, and finely laminated tuff North 0 5 10 Uknown offset/displacement, known or certain, dashed where Kilometers approximately located, dotted where concealed Kvm Valdez Group, Melange of Iceworm Peak of Kusky and others (1997) (Upper Cretaceous) Miles Geologic Contacts Blocks of graywacke in a phacoidally cleaved matrix of slate 0 5 10 Known or certain, dashed where approximately located, Kvgs Valdez Group, schist (Upper Cretaceous) dotted where concealed Schistose sandstone, siltstone, shale, and interbedded tuff This map displays geologic map data compiled by the National Park Service Geologic Resources Inventory. @@ Inferred and queried It is not a substitute for site-specific investigations. KMm McHugh Complex, undivided (Mississippian to Cretaceous) Water or shoreline, dashed where approximately located, Mélange of metasedimentary and metavolcanic rocks Source Map Poster Layout dotted where inferred KJms McHugh Complex, graywacke and conglomerate (Early Jurassic to Early Cretaceous) Wilson, F.H., C.P. Hults, K.A. Labay, and N. Shew. 2008. Digital data Chase Winters and Georgia Hybels (Colorado State University) Ice or glacial, dashed where approximately located Mélange of metamorphosed turbiditic conglomerate and graywacke for the Reconnaissance geologic map for Prince William Sound Poster Date Geologic Units and the Kenai Peninsula, Alaska (scale 1:250,000). Open File September 2017 KTRmc McHugh Complex, basalt and chert (Middle Triassic to Early Cretaceous) Report 2008-1002. US Geological Survey, Anchorage, Alaska. GRI Data Date Fault bounded blocks in mélange Water - rivers, lakes, and Pacific Ocean (Quaternary) Primary source maps for the compilation are listed in the February 2010 MZg accompanying GRI Report. Source Map Date Gabbro (Mesozoic) Fault bounded blocks in mélange 2008 g Ice fields or glaciers (Quaternary) Source Scale 1:250,000 Derived from glacial extents on 1950’s USGS topographic maps. MZu Ultramafic plutonic rocks (Mesozoic) All Geologic Resources Inventory geologic map data and publications are available at http://go.nps.gov/gripubs. Fault bounded blocks in mélange