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Melange

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Structurally complex mixture of basaltic rocks, serpentinite, chert, argillite, conglomerate, silty sandstone, and lenses of marble composing the melange of the Takilma area of Smith and others (1982)
State Oregon
Name Melange
Geologic age Jurassic
Lithologic constituents
Major
Metamorphic > Metaigneous > SerpentiniteMatrix and blocks in melange
Incidental
Metamorphic > Metasedimentary > Metaclastic > ArgilliteBlocks in melange
Metamorphic > Metasedimentary > Metacarbonate > MarbleBlocks in melange
Igneous > Volcanic > Mafic-volcanic > Basalt (Melange)Blocks in melange
Sedimentary > Clastic > Sandstone (Melange)Blocks in melange
Sedimentary > Chemical > Chert (Melange)Blocks in melange
Sedimentary > Clastic > Conglomerate (Melange)Blocks in melange
Comments Considered part of the Rattlesnake Creek Terrane by Irwin (1994)
References

Walker, G.W. and MacLeod, N.S., 1991, Geologic map of Oregon: U.S. Geological Survey, scale 1:500,000.

Irwin, W.P., 1994, Geologic map of the Klamath Mountains, California and Oregon: U.S. Geological Survey Miscellaneous Investigations Series Map I-2148, scale 1:500,000.

https://pubs.er.usgs.gov/publication/i2148

Smith, J.G., Page, N.J, Johnson, M.G., Moring, B.C., and Gray, F., 1982, Preliminary geologic map of the Medford 1ø by 2ø quadrangle, Oregon and California: U.S. Geological Survey Open-File Report 82-955, scale 1:250,000.

https://pubs.er.usgs.gov/publication/ofr82955
NGMDB product
Counties Josephine