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Geology


I have three figures that help to illustrated the spatial distribution of rocks in the Alaska Range: a geologic map, terrane map, and sedimentary basin map.

Geologic Map


Geologic Map

Here is the geologic map for the Alaska Range.  The major glacier systems and faults (e.g., Denali, Hines Creek) are visible.  The legend for this map is quite unwieldy, so it is excluded.  For a more complete description of the geology scroll down to the terrane section.  Geologic map from Beikman (1994).

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Terrane Map


 
Terrane Map
BP
CH
CW
Cz
DL
GN
KH
ML
MK
MY
NN
PE
PN
SU
WF
WM
WR
WY
YT
Shown along the side of the terrane map are the terranes associated with the Alaska Range.  Map and terrane descriptions from Silberling et al., (1994).  TOP


Sedimentary Basins


 
Sedimentary Basin Map

This map shows the locations of major sedimentary basins.  The yellow represents Late Tertiary and Quaternary basins.  The orange represents Lower Tertiary remnants of older basins that are moderately to strongly deformed.  Stippled areas represent surface outcrops.  The brown is volcanic rock cover.  The white blobs marked with a "g" are glaciers.  The grey regions are basement rocks.  The green and teal correspond to flysch basins and belts.  Prominent basins in the region include the Cook Inlet, Sustina Basin, Minchumina Basin, Nenana Basin, and Copper River Basin.  Map from Kirschner (1994).

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Explanation for Sedimentary Basin Map


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