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Map showing publication footprint
  • Usage in publication:
    • Hackneyville spotted schist
  • Modifications:
    • First used
  • Dominant lithology:
    • Schist
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
Publication:

Bentley, R.D. (editor), and Neathery, T.L. (editor), 1970, Geology of the Brevard fault zone and related rocks of the Inner Piedmont of Alabama: Alabama Geological Society Annual Field Trip Guidebook, December 4-5, 1970, no. 8, 119 p.


Summary:

The Wedowee is here raised from Formation to Group rank and subdivided into the Hackneyville spotted schist, the Cragford Schist, and two unnamed metasedimentary sequences. The Hackneyville is a quartz-albite-muscovite-(sericite) biotite schist with local occurrences of cordierite(?), andalusite, and graphite. Muscovite porphyroblasts as large as 1 in. in diameter characterize the unit. Unit is probably a product of contact metamorphism related to the genesis of the Pinckneyville Granite Complex. Grades northward into the Cragford.

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


Map showing publication footprint
  • Usage in publication:
    • Hackneyville Schist
  • Modifications:
    • Named
  • Dominant lithology:
    • Schist
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
Publication:

Neathery, T.L., and Reynolds, J.W., 1975, Geology of the Lineville East, Ofelia, Wadley North, and Mellow Valley quadrangles, Alabama: Geological Survey of Alabama Bulletin, no. 109, p. 1-120.


Summary:

Name Hackneyville Schist of Wedowee Group is here formally proposed. Unit is medium- to coarse-grained, intensely foliated, and highly metamorphosed.

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


Map showing publication footprint
  • Usage in publication:
    • Hackneyville Schist
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Piedmont-Blue Ridge province
Publication:

Raymond, D.E., Osborne, W.E., Copeland, C.W., and Neathery, T.L., 1988, Alabama stratigraphy: Geological Survey of Alabama Circular, no. 140, 97 p.


Summary:

Hackneyville Schist of Wedowee Group occurs in the Northern Piedmont of east-central AL. Unit is a medium- to coarse-grained quartz-albite-muscovite-biotite schist, graphite-muscovite-quartz schist, quartz-plagioclase-almandine-kyanite-muscovite schist, and biotitic quartzite. Commonly contains muscovite, andalusite and/or chiastolite porphyroblasts in south-central Clay Co. Pods of massive sillimanite occur in the higher grade metamorphic rocks.

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


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