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Geologic Unit: Straw Hollow
Map showing publication footprint
  • Usage in publication:
    • Straw Hollow Diorite*
  • Modifications:
    • Age modified
  • AAPG geologic province:
    • New England province
Publication:

Goldsmith, Richard, Wones, D.R., and Shride, A.F., 1982, Stratigraphic names in eastern Massachusetts and adjacent states, IN Stratigraphic notes, 1980-1982: U.S. Geological Survey Bulletin, 1529-H, p. H57-H72.


Summary:

Straw Hollow Diorite and Assabet Quartz Diorite are considered to be roughly equivalent in age to Sharpners Pond Diorite, which is Silurian (based on U-Th-Pb zircon age of 435 +/-5 m.y. from R.E. Zartman and R.S. Naylor, 1981, written commun.).

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


Map showing publication footprint
  • Usage in publication:
    • Straw Hollow Diorite*
  • Modifications:
    • Overview
  • AAPG geologic province:
    • New England province
Publication:

Zen, E-an (editor), Goldsmith, Richard (compiler), Ratcliffe, N.M. (compiler), Robinson, Peter (compiler), Stanley, R.S. (compiler), Hatch, N.L., Jr., Shride, A.F., Weed, E.G.A., and Wones, D.R., 1983, Bedrock geologic map of Massachusetts: U.S. Geological Survey [State Geologic Map], 3 sheets, scale 1:250,000


Summary:

Used as Straw Hollow Diorite of Silurian age. Mapped undifferentiated with Assabet Quartz Diorite. Intrudes Nashoba Formation.

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


Map showing publication footprint
  • Usage in publication:
    • Straw Hollow Diorite*
  • Modifications:
    • Overview
  • AAPG geologic province:
    • New England province
Publication:

Wones, D.R., and Goldsmith, Richard, 1991, Intrusive rocks of eastern Massachusetts, Chapter I, IN Hatch, N.L., Jr., ed., The bedrock geology of Massachusetts: U.S. Geological Survey Professional Paper, 1366-E-J, p. I1-I61.


Summary:

Straw Hollow Diorite and Assabet Quartz Diorite are shown on MA State bedrock geologic map by Zen and others (1983) as one unit because of their similar occurrence and general lithology and small size. Straw Hollow covers only 3 sq km. Intrudes Nashoba Formation; in fault contact with Marlboro Formation. Described as light gray to dark green, medium grained, and weakly foliated. Age is Silurian based on lithologic similarity to Sharpners Pond Diorite, dated at 430 +/-5 Ma by U-Pb methods on zircon (Zartman and Naylor, 1984). [Papers presented as chapters in U.S. Geological Survey Professional Paper 1366 are intended as explanations and (or) revisions to MA State bedrock geologic map of Zen and others (1983) at scale of 1:250,000.]

Source: GNU records (USGS DDS-6; Reston 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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