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Geologic Unit: Katlian
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Map showing publication footprint
  • Usage in publication:
    • Katlian Group*
  • Modifications:
    • Named
  • Dominant lithology:
    • Phyllite
    • Metavolcaniclastics
  • AAPG geologic province:
    • Alaska Southeastern region
Publication:

Loney, R.A., Berg, H.C., Pomeroy, J.S., and Brew, D.A., 1963, Reconnaissance geologic map of Chichagof Island and northwestern Baranof Island, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map, I-388, 1 sheet, scale 1:250,000


Summary:

[Presumably named for Mt. Katlian on southwestern Chichagof Island.] Type locality is designated as Mt. Katlian on Baranof Island (Sitka 1:250,000 quad), southeastern AK. Consists of phyllite, greenschist, and semischist with minor metachert and greenstone; also some graywacke and serpentinite. Lower contact not observed; upper contact with Kelp Bay Group appears to be transitional. Age is regarded as Permian(?) and Triassic(?) based on regional stratigraphic correlations.

Source: GNU records (USGS DDS-6; Menlo GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Katlian Group†
  • Modifications:
    • Abandoned
  • AAPG geologic province:
    • Alaska Southeastern region
Publication:

Loney, R.A., Brew, D.A., Muffler, L.J.P., and Pomeroy, J.S., 1975, Reconnaissance geology of Chichagof, Baranof, and Kruzof Islands, southeastern Alaska: U.S. Geological Survey Professional Paper, 792, 105 p., (incl. geologic map, scale 1:250,000)


Summary:

Unit is abandoned. Its rocks are reassigned to the Kelp Bay Group.

Source: GNU records (USGS DDS-6; Menlo GNULEX).


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates published by U.S. Geological Survey authors.

"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).

Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).

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