Hagarstown Member: Difference between revisions
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{{Tree | {{Tree | ||
|category1=Cenozoic Erathem | |category1=Cenozoic Erathem | ||
|category2=Quaternary System | |category2=Quaternary System | ||
|category3=Pleistocene Series | |category3=Pleistocene Series | ||
|category4=Pearl Formation | |category4=Pearl Formation | ||
|tree1=Pearl Formation | |||
|tree2=Hagarstown Member | |||
|tree21=Cenozoic Erathem | |||
|tree22=Quaternary System | |||
|tree23=Pleistocene Series | |||
}} | }} | ||
==Primary source== | ==Primary source== | ||
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==Contributing author(s)== | ==Contributing author(s)== | ||
H. B. Willman and John C. Frye | H. B. Willman and John C. Frye (1970); Kiley M. and Lineback J. (1983); Grimley D.A. (2010); Grimley and Walkowska (2017) | ||
==Name== | ==Name== | ||
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===Type author(s)=== | ===Type author(s)=== | ||
Jacobs and Lineback (1969) introduced informally; formalized by Willman and Frye (1970) | |||
===Type status=== | ===Type status=== | ||
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==Environments of deposition== | ==Environments of deposition== | ||
Ice-contact sediments; in ice-walled channels, ice-walled fans; eskers, kames, crevasse-fills, reentrants or other ice-contact environments | |||
==Economic importance== | ==Economic importance== | ||
in some areas , the Hagarstown Member is mined for sand and gravel; beds of fine sand to gravelly sands are typical in the sandy facies of this unit (generally eskers and ice-walled channels); the mixed facies of this unit is generally too variable to be used economically (with interbeds of diamicton, silt, and clay); sand and gravel pits are most notably found in the Kaskaskia River Basin (see Jacobs and Lineback, 1969; Grimley and Phillips, 2015), but also locally in northwestern, central and southeastern Illinois in ridges on the Illinois Episode till plain | |||
==Remarks== | ==Remarks== | ||
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==References== | ==References== | ||
JACOBS, A. M., and J. A. LINEBACK, 1969, Glacial geology of the Vandalia, Illinois, region: Illinois State Geological Survey Circular 442, 24 p. | JACOBS, A. M., and J. A. LINEBACK, 1969, Glacial geology of the Vandalia, Illinois, region: Illinois State Geological Survey Circular 442, 24 p. | ||
WILLMAN, H.B. and J.C. FRYE, 1970, Pleistocene stratigraphy of Illinois: Illinois State Geological Survey Bulletin 94, 204 p. | |||
KILLEY, M.M., and J.A. LINEBACK, 1983, Stratigraphic reassignment of the Hagarstown Member in Illinois, in Geologic Notes: Illinois State Geological Survey, Circular 529, p. 13–16. | |||
GRIMLEY, D.A., 2010, Surficial Geology of Mascoutah Quadrangle, St. Clair County, Illinois: Illinois State Geological GRIMLEY D.A . and PHILLIPS A.C., editors. 2015. Ridges, Mounds, and Valleys: Glacial-Interglacial History of the Kaskaskia Basin, Southwestern Illinois, 55th Midwest Friends of the Pleistocene Field Conference (2011), Illinois State Geological Survey, Guidebook 41, 124 p. | |||
GRIMLEY, D.A., and K.A. WALKOWSKA, 2017, Surficial geology of Keyesport Quadrangle, Clinton, Bond, and Fayette Counties, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, IGQ Keyesport-SG, 2 sheets, 1:24,000; report, 10 p. | |||
{{Codes | {{Codes | ||
Revision as of 18:18, 15 September 2022
Lithostratigraphy: Pearl Formation >>Hagarstown Member
Chronostratigraphy: Cenozoic Erathem >>Quaternary System >>Pleistocene Series
Primary source
Willman, H. B., and John C. Frye, 1970, Pleistocene Stratigraphy of Illinois: Illinois State Geological Survey Bulletin 94, 204 p.
Contributing author(s)
H. B. Willman and John C. Frye (1970); Kiley M. and Lineback J. (1983); Grimley D.A. (2010); Grimley and Walkowska (2017)
Name
Original description
The Hagarstown Member of the Glasford Formation was informally named the Hagarstown beds by Jacobs and Lineback (1969, p. 12), for the south-central Illinois region.
Derivation
It was named for Hagarstown, Fayette County, 5 miles west of the type section.
Other names
History/background
Type section
Type location
The type section is the Hickory Ridge Section (Jacobs and Lineback, 1969, p. 20), SW NW Sec. 30, T. 6 N., R. 1 E., Fayette County.
Type author(s)
Jacobs and Lineback (1969) introduced informally; formalized by Willman and Frye (1970)
Type status
Reference section
Reference location
Reference author(s)
Reference status
Stratigraphic relationships
The Hagarstown Member lies stratigraphically above the Vandalia Till and contains the Sangamon Soil at the top. It is commonly overlain by Wisconsinan loesses.
Extent and thickness
It is probably more than 100 feet thick in some of the higher ridges. In surface expression the Hagarstown Member is the material of the elongate ridges, referred to as the "ridged drift," and of the sheet of dominantly water-laid sediments between the ridges. Its geographic distribution, origin, and composition have been described by Jacobs and Lineback (1969).
Lithology
It consists of gravelly till, poorly sorted gravel, well sorted gravel, and sand.
Core(s)
Photograph(s)
Contacts
Well log characteristics
Fossils
Age and correlation
The Hagarstown Member is in either the early Jubileean or late Monican Substage of the Illinoian Stage.
Environments of deposition
Ice-contact sediments; in ice-walled channels, ice-walled fans; eskers, kames, crevasse-fills, reentrants or other ice-contact environments
Economic importance
in some areas , the Hagarstown Member is mined for sand and gravel; beds of fine sand to gravelly sands are typical in the sandy facies of this unit (generally eskers and ice-walled channels); the mixed facies of this unit is generally too variable to be used economically (with interbeds of diamicton, silt, and clay); sand and gravel pits are most notably found in the Kaskaskia River Basin (see Jacobs and Lineback, 1969; Grimley and Phillips, 2015), but also locally in northwestern, central and southeastern Illinois in ridges on the Illinois Episode till plain
Remarks
References
JACOBS, A. M., and J. A. LINEBACK, 1969, Glacial geology of the Vandalia, Illinois, region: Illinois State Geological Survey Circular 442, 24 p. WILLMAN, H.B. and J.C. FRYE, 1970, Pleistocene stratigraphy of Illinois: Illinois State Geological Survey Bulletin 94, 204 p. KILLEY, M.M., and J.A. LINEBACK, 1983, Stratigraphic reassignment of the Hagarstown Member in Illinois, in Geologic Notes: Illinois State Geological Survey, Circular 529, p. 13–16. GRIMLEY, D.A., 2010, Surficial Geology of Mascoutah Quadrangle, St. Clair County, Illinois: Illinois State Geological GRIMLEY D.A . and PHILLIPS A.C., editors. 2015. Ridges, Mounds, and Valleys: Glacial-Interglacial History of the Kaskaskia Basin, Southwestern Illinois, 55th Midwest Friends of the Pleistocene Field Conference (2011), Illinois State Geological Survey, Guidebook 41, 124 p. GRIMLEY, D.A., and K.A. WALKOWSKA, 2017, Surficial geology of Keyesport Quadrangle, Clinton, Bond, and Fayette Counties, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, IGQ Keyesport-SG, 2 sheets, 1:24,000; report, 10 p.
ISGS Codes
| Stratigraphic Code | Geo Unit Designation |
|---|---|