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Map showing publication footprint
  • Usage in publication:
    • Niagara Falls Member
  • Modifications:
    • First used
  • Dominant lithology:
    • Dolostone
  • AAPG geologic province:
    • Appalachian basin
Publication:

Brett, C.E., Goodman, W.M., and LoDuca, S.T., 1990, Sequence stratigraphy of the type Niagaran Series (Silurian) of western New York and Ontario, IN Lash, G.G., ed., Western New York and Ontario; field trip guidebook: New York State Geological Association Guidebook, 62nd annual meeting, Fredonia, NY, no. 62, p. Sat C1-C71.


Summary:

Goat Island Formation of Lockport Group in report area is subdivided into (ascending) Niagara Falls, Ancaster, and Vinemount Members. Ancaster and Vinemount are extended into NY from their type areas in Hamilton, Ontario. The Niagara Falls Member overlies the Pekin Member of the Gasport Limestone. The upper 1.5 m of the Niagara Falls is a distinctive interval of very dark gray, vuggy dolostone with distinct, white weathering stromatoporoids and corals. Total thickness and description not given. Goat Island and its members are Middle Silurian.

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


Map showing publication footprint
  • Usage in publication:
    • Niagara Falls Member
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Appalachian basin
Publication:

Tepper, D.H., Goodman, W.M., Gross, M.R., Kappel, W.M., and Yager, R.M., 1990, Stratigraphy, structure, and hydrogeology of the Lockport Group; Niagara Falls area, New York, IN Lash, G.G., ed., Western New York and Ontario; field trip guidebook: New York State Geological Association Guidebook, 62nd annual meeting, Fredonia, NY, no. 62, p. Sun B1-B23.


Summary:

Lockport Group in this report is considered Late Silurian following Rickard (1975) as the NY Geological Survey does not recognize Middle Silurian as does the USGS. The revisions to the Lockport nomenclature discussed in this report will be formally proposed by C.E. Brett in a larger study of the Niagaran Series. The Lockport Group is divided into the (ascending) Gasport Limestone, the Goat Island Dolomite, the Eramosa Dolomite, and the Guelph Dolomite. The Gasport includes the Gothic Hill and Pekin Members, and the Goat Island includes the Niagara Falls, Ancaster, and Vinemount Members. [Though three of the authors of this report (Tepper, Kappel, and Yager) are USGS scientists, the nomenclature used here has not been officially accepted for use by the USGS.]

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


Map showing publication footprint
  • Usage in publication:
    • Niagara Falls Member*
  • Modifications:
    • Named
  • Dominant lithology:
    • Dolomite
  • AAPG geologic province:
    • Appalachian basin
Publication:

Brett, C.E., Tepper, D.H., Goodman, W.M., LoDuca, S.T., and Eckert, Bea-Yeh, 1995, Revised stratigraphy and correlations of the Niagaran Provincial Series (Medina, Clinton, and Lockport Groups) in the type area of western New York: U.S. Geological Survey Bulletin, 2086, 66 p., Prepared in cooperation with EPA and Univ. Rochester, Dept. Earth Environ. Sci


Summary:

Named the Niagara Falls Member of the Goat Island Dolomite for Niagara Falls, Niagara Co., western NY. Consists of light-olive to brownish-gray, sucrosic, medium-grained, thick-bedded to massive, commonly porous and vuggy dolomite that weathers very light gray. From type locality eastward to Brockport, Monroe Co., NY, member is typically biostromal and characterized by abundant stromatoporoids. East of the Niagara River Gorge, two distinct units are recognized. Unit A is a pale pinkish-gray to olive-gray, crinoidal, dolopackstone and grainstone, and a thin- to thick-bedded, pale olive-gray, fine-grained dolowackestone that is extremely vuggy. Unit B is a dark-gray to pale pinkish-gray massive dolorudite that contains stromatoporoids and favositids. Thickness of the Niagara Falls is 3 ft at Niagara River Gorge to more than 15 ft at Lockport, NY. Unconformably overlies the Pekin Member of the Gasport Dolomite and conformably underlies the Ancaster Member of the Goat Island Dolomite. West of Hamilton, Ontario, CAN, the Niagara Fall Member grades laterally into the massive carbonates of the Amabel Formation; to the east it grades laterally into the sandy dolomites of the Penfield Formation. The Niagara Falls is of Early and Late Silurian (latest Wenlockian and earliest Ludlovian) age based on conodonts. [Silurian time scale of Hartland and others (1982) used in this report.]

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


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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 ( ).

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