GEOLEX

Summary of Citation: St. Peter

Publication:
Alden, W.C., 1902, Chicago, Illinois-Indiana: U.S. Geological
   Survey Geologic Atlas of the United States, no. 81, 14 p.

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Illinois basin

Summary:
St. Peter sandstone is part of St. Peter group. Underlies Lower Magnesian group or limestone. Found in wells at Goose Island in North Branch of Chicago River, Chicago Heights, South Evanston, Blue Island, Union Stockyards, Lakeport (all in Cooke Co., IL), and Hammond (Lake Co., IN).

Summary of Citation: St. Peter

Publication:
Bain, H.F. and Ulrich, E.O., 1905, The copper deposits of
   Missouri, IN Contributions to economic geology, 1904; Copper:
   U.S. Geological Survey Bulletin, 260-F, p. F233-F235

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Ozark uplift

Summary:
Ordovician (Saratogan and Canadian) St. Peter ("Crystal City") sandstone is part of "Magnesian" or "Ozark" series in MO. Synonyms are First or Saccharoidal sandstone, Cap au Gres sandstone, Pacific sandstone, or "Key sandstone" (in Yellville district of AR).

Summary of Citation: St. Peter

Publication:
Bain, H.F., 1905, Zinc and lead deposits of the upper Mississippi
   Valley: U.S. Geological Survey Bulletin, 294, 155 p.

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Wisconsin arch Iowa shelf

Summary:
Neither St. Peter sandstone nor beds below it crop out in northwestern IL (Galena district) but they do come to surface in adjacent portions of IA and WI.

Summary of Citation: St. Peter

Publication:
Alden, W.C., 1906, Milwaukee special folio: U.S. Geological
   Survey Geologic Atlas of the United States, no. 140, 12 p.

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Wisconsin arch

Summary:
St. Peter sandstone in subsurface at Waukesha, Elm Grove, Wauwatosa, Miller's Brewery, Lake Park, and Lake Park. No age given.

Summary of Citation: St. Peter

Publication:
Smith, L.S., 1906, Water resources of northern Wisconsin: U.S.
   Geological Survey Water-Supply Paper, 156, 145 p.

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Wisconsin arch

Summary:
St. Peter sandstone occurs in northern WI over "Lower Magnesian" limestone; under "Trenton" limestone.

Summary of Citation: St. Peter

Publication:
Fuller, M.L., 1906, Underground-water papers, 1906: U.S. Geological
   Survey Water-Supply Paper, 160, 104 p.

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Ozark uplift

Summary:
In village of Rapid River, at head of Little Bay de Noc, Delta Co., MN, in log of Rapid River oil well, St. Peter(?) is present. Overlies undifferentiated "Calciferous." Underlies Trenton limestone with geodes. St. Peter(?) also in log of railroad well at Gladstone, Delta Co. St. Peter in Wagner well near Escanaba, Delta Co., overlies St. Peter shale, underlies Trenton limestone with geodes.

Summary of Citation: St. Peter

Publication:
Grant, U.S. and Burchard, E.F., 1907, Lancaster-Mineral Point,
   Wisconsin-Iowa-Illinois: U.S. Geological Survey Geologic
   Atlas of the United States, no. 145, 14 p.

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Wisconsin arch Iowa shelf

Summary:
Ordovician St. Peter sandstone overlies Prairie du Chien formation, underlies Platteville limestone. Found in sections at 1) City Quarry, Mineral Point WI; 2) at Mineral Point near Mineral Point Zinc Works; 3) at Spechts Ferry, IA; 4) near Burton, WI; and 5) in road about 5 mi west of Fennimore, WI.

Summary of Citation: St. Peter

Publication:
Dole, R.B. and Wesbrook, F.F., 1907, The quality of surface
   waters in Minnesota: U.S. Geological Survey Water-Supply
   Paper, 193, 171 p.

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Overview	Sioux uplift Iowa shelf

Summary:
Eastern and southeastern parts of MN, extending from Lake Superior to IA boundary, are underlain by Cambrian and Ordovician rocks, including St. Peter sandstone. St. Peter is separated from New Richmond sandstone by Shakopee limestone "Upper Oneota"). Extends from region around St. Paul continuously southward beneath surface through IA. Overlain by rocks classified as "Trenton-Galena." Crops out in South Minneapolis between Minnesota River and IA boundary in Mississippi River basin.

Summary of Citation: St. Peter

Publication:
Shepard, E.M., 1907, Underground waters of Missouri, their
   geology and utilization: U.S. Geological Survey Water-Supply
   Paper, 195, 224 p.

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Age modified Areal limits	Ozark uplift

Summary:
Cambro-Ordovician St. Peter sandstone is equivalent of First or Saccharoidal sandstone of Swallow, Cap au Gres sandstone of Keyes, Pacific sandstone of Ball and Smith, Crystal City sandstone of Winslow, and, in part, Key sandstone of Adams. Marshfield sandstone and Bolivar sandstone of southwestern MO are commonly believed to represent same formation, but Ulrich regards them as lenses within Jefferson City limestone. Ulrich further maintains that true St. Peter sandstone is rarely or never present when Late Devonian or Carboniferous are in contact with Cambro-Ordovician. Crops out in Rolls and Lincoln Cos. and in some counties north of Missouri River to a point nearly half way across the State. Also outcrops in counties just west of Mississippi River and south of St. Louis Co. Occurs under cover all around Ozark Island in MO. Underlies Joachim. Mapped together with Jefferson City which it overlies.

Summary of Citation: St. Peter

Publication:
Smith, W.S.T. and Siebenthal, C.E., 1907, Joplin district,
   Missouri-Kansas: U.S. Geological Survey Geologic Atlas of
   the United States, no. 148, 20 p.

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Ozark uplift

Summary:
Ordovician St. Peter sandstone doesn't outcrop in Joplin district that straddles MO-KS border, but it is present in subsurface in Huntington well section, Carthage, MO.

Summary of Citation: St. Peter

Publication:
Schrader, F.C., 1908, Independence, Kansas: U.S. Geological
   Survey Geologic Atlas of the United States, no. 159, 3 p.

Usage in Publication:
St. Peter [sandstone]*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Cherokee basin

Summary:
St. Peter [sandstone] extended to KS. Found in deep well at Caney, Montgomery Co., but identification of formations below Boone [formation] is only approximate.

Summary of Citation: St. Peter

Publication:
Matson, G.C., 1909, Water resources of the Blue Grass region,
   Kentucky; with a chapter on the quality of the waters by
   Chase Palmer: U.S. Geological Survey Water-Supply Paper, 233,
   223 p., Also, U.S. Geological Survey Water-Supply Paper
   1533.

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Cincinnati arch

Summary:
Ordovician St. Peter sandstone is found at depth of 100 ft or more below oldest rock see at surface in KY. Previously called Calciferous by Kentucky geologists but is correlated and usually identified with St. Peter sandstone of Mississippi Valley by most workers north of Ohio River.

Summary of Citation: St. Peter

Publication:
Capps, S.R., 1910, The underground waters of north-central
   Indiana, with a chapter on the chemical character of the
   waters by R.B. Dole: U.S. Geological Survey Water-Supply
   Paper, 254, 279 p.

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Illinois basin Cincinnati arch

Summary:
Ordovician St. Peter sandstone does not outcrop in north-central IN, but occurs in subsurface in area bounded by Cass, Wabash, Hendrick, and Hancock Cos. Underlies "Trenton" limestone. Probably underlies entire State because it is always found where bottom of "Trenton" is reached.

Summary of Citation: St. Peter

Publication:
Harder, E.C., 1910, Some iron ores of western and central
   California: U.S. Geological Survey Bulletin, 430, p. 219-227

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Ozark uplift Arkoma basin

Summary:
Ordovician St. Peter sandstone exposed in northern part of manganese-bearing area of Batesville district, north of Batesville in Independence, Izard, and Sharp Cos., north-central AR, and on floor of larger valley extending though it. Overlies Yellville limestone; underlies Izard limestone.

Summary of Citation: St. Peter

Publication:
Fenneman, N.M., 1911, Geology and mineral resources of the St.
   Louis quadrangle, Missouri-Illinois: U.S. Geological Survey
   Bulletin, 438, 73 p.

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Illinois basin Ozark uplift

Summary:
Ordovician St. Peter sandstone occurs in wells near Monks Island, IL, and in a well at insane asylum in St. Louis, MO. Overlain by Joachim limestone; overlies Cambro-Ordovician Jefferson City limestone.

Summary of Citation: St. Peter

Publication:
Fuller, M.L. and Clapp, F.G., 1912, The underground waters of
   southwestern Ohio, with a discussion of the chemical character
   of the waters by R.B. Dole: U.S. Geological Survey Water-Supply
   Paper, 259, 228 p.

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Cincinnati arch

Summary:
Ordovician St. Peter sandstone does not crop out in southwestern OH, but is present about 850 ft below surface at Cincinnati. Thins to the east and south. Underlies "Birdseye" limestone (so-called "Trenton" limestone of drillers). Overlies unnamed Cambrian and Ordovician rocks.

Summary of Citation: St. Peter

Publication:
Norton, W.H., Hendrixson, W.S. and Simpson, H.E., 1912, Underground
   water resources of Iowa: U.S. Geological Survey Water-Supply
   Paper, 293, 994 p.

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Iowa shelf Forest City basin Nemaha anticline Salina basin

Summary:
Ordovician St. peter sandstone overlies Shakopee dolomite of Prairie du Chien group. Overlain by Platteville limestone. Crops out along eastern border of State north of Dubuque. Exposed chiefly in Allamakee Co. Probably underlies entire state of IA except for extreme northwestern part. Not yet reached southwestern part, but its recognition at Lincoln, NE, and at different places in MO makes its presence there probable. Also recently found at Nebraska City, NE, at 2783 ft below surface.

Summary of Citation: St. Peter

Publication:
Munn, M.J. and Wegemann, C.H., 1914, Reconnaissance of the
   Grandfield district, Oklahoma: U.S. Geological Survey Bulletin,
   547, 85 p.

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Cincinnati arch

Summary:
Ordovician St. Peter sandstone present in subsurface of Wayne Co., southern KY. Sometime shown in this area as St. Peter(?) sandstone.

Summary of Citation: St. Peter

Publication:
Hubbard, G.D., Prosser, C.S., Stauffer, C.R., Bownocker, J.A.
   and Cumings, E.R., 1915, Description of the Columbus quadrangle,
   Ohio: U.S. Geological Survey Geologic Atlas of the United
   States, Columbus folio, no. 197, 15 p.

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Appalachian basin

Summary:
St. Peter sandstone not exposed in quad. Penetrated by deep wells at Columbus and is oldest unit present. Overlain by Trenton(?) or older limestones. Also found in Waverly well in Pike Co., south of mapped area.

Summary of Citation: St. Peter

Publication:
Purdue, A.H. and Miser, H.D., 1916, Eureka Springs-Harrison,
   Arkansas-Missouri: U.S. Geological Survey Geologic Atlas of
   the United States, no. 202, 22 p.

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Overview	Ozark uplift Arkoma basin

Summary:
Lower Ordovician St. Peter sandstone is widely distributed in Upper Mississippi valley and extends as far south as northern AR. Crops out along Kings River and tributaries south of Rockhouse P.O., and at one locality in War Eagle Creek northeast of Hindsville, Eureka Springs quad. Outcrops on Osage Creek near western border of quad, on Crooked and Hussan Creeks in eastern part, and on Buffalo Fork of White River and tributaries in southern part of Harrison quad. Unconformably overlies upper part of Everton limestone except at two places: 1) near mouth of Piney Creek, Eureka Springs quad, where it overlies Kings River sandstone and 2) on Osage Creek at western border of Harrison quad where it overlies Powell limestone. Underlies unconformably Joachim limestone. Where later Ordovician formations are lacking, Sylamore sandstone member of Chattanooga shale (Devonian) or St. Joe limestone member of Boone formation (Carboniferous) overlie St. Peter.

Summary of Citation: St. Peter

Publication:
Alden, W.C., 1918, The Quaternary geology of southeastern
   Wisconsin, with a chapter on older rock formations: U.S.
   Geological Survey Professional Paper, 106, 356 p.

Usage in Publication:
St. Peter sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Overview	Wisconsin arch

Summary:
Owing to an unconformity at its base and great variation in thickness, Ordovician St. Peter sandstone is not generally continuous over any extensive area where protecting cover of Trenton limestone has been removed. Known fossils include sea weed (FUCUS) and worm borings (SCOLITHUS) reported by Chamberlin (1877, Geology of Wisconsin, v. 2, p. 288). Overlies Lower Magnesian limestone.

Summary of Citation: St. Peter

Publication:
Stauffer, C.R., 1934, Type Paleozoic sections in the Minnesota
   Valley: Journal of Geology, v. 42, no. 4, p. 337-357

Usage in Publication:
St. Peter sandstone

Modifications:	Geologic Province:	Dominant Lithology:
Overview	Sioux uplift

Summary:
Type locality is at Fort Snelling; type section is the bluff where the Minnesota River (formerly called St. Peter's River) joins the Mississippi River, Hennepin Co, MN on the Sioux uplift. Section at Fort Snelling remeasured and redescribed. Consists in remeasured section of 163 ft of 1) basal white sandstone 35 ft thick, 2) siliceous blue shale 30 ft thick, and 3) white to yellow-brown, medium- to fine-grained, massive sandstone. Overlies Shakopee dolomite; underlies Glenwood beds in the remeasured section. May be 150 to 165 ft thick elsewhere in MN. Probably of eolian origin. Fossils (mollusks) rare. Of Late Cambrian, St. Croixian, age.

Summary of Citation: St. Peter

Publication:
Baker, C.L., 1947, Deep borings of western South Dakota: South
   Dakota Geological Survey Report of Investigations, no. 57,
   112 p.

Usage in Publication:
St. Peter sandstone

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Williston basin

Summary:
Name used in the subsurface in Harding Co, SD in Williston basin. Incompletely penetrated in three wells. Gray to white fine- to coarse-grained sandstone as much as 88 ft thick. Overlain by the Decorah-Platteville shale; underlying rocks not described. Middle Ordovician in age.

Summary of Citation: St. Peter

Publication:
Stevenson, R.E., 1952, Structures and stratigraphy of southwestern
   Butte County: South Dakota Geological Survey Report of
   Investigations, no. 69, 32 p.

Usage in Publication:
St. Peter formation

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Williston basin

Summary:
Uses name in Butte Co, SD in Williston basin for a subsurface unit of white to pink, fine- to coarse-grained quartz sandstone. Thickness 47 to 110 ft. Underlain by Deadwood formation; overlain by Platteville formation. Correlated with [the lower] part of Winnipeg formation in ND. Ordovician in age.

Summary of Citation: St. Peter

Publication:
Clayton, Lee and Attig, J.W., 1990, Geology of Sauk County,
   Wisconsin: Wisconsin Geological and Natural History Survey
   Information Circular, no. 67, 68 p., (incl. geologic map,
   scale 1:100,000)

Usage in Publication:
St. Peter Formation

Modifications:	Geologic Province:	Dominant Lithology:
Overview	Wisconsin arch	Breccia Sandstone Conglomerate

Summary:
In Sauk Co., WI, St. Peter Formation has two recognizable subdivisions: the lower Readstown Member and the upper Tonti Member. Readstown is equivalent to the Kress Member in IL. In area of report, Readstown consists of a few meters of breccia composed of sandstone pebbles, cobbles, and boulders. Matrix is sand, silt and clay. Bedding is irregular and erratic. Tonti Member makes up most of the St. Peter in the report area. Consists several meters of fine to medium sand, largely quartz; noncalcareous, nondolomitic, and nonglauconitic. Many grains covered with faceted quartz overgrowths creating "sparkly" outcrop surface. St. Peter Formation overlies Oneota Formation and underlies Rountree Formation (new name) or Horicon Formation. Age is Middle Ordovician.

Summary of Citation: St. Peter

Publication:
Catacosinos, P.A. and Daniels, P.A., Jr., 1991, Stratigraphy of
   Middle Proterozoic to Middle Ordovician formations of the
   Michigan basin, IN Catacosinos, P.A., and Daniels, P.A., Jr.,
   eds., Early sedimentary evolution of the Michigan basin:
   Geological Society of America Special Paper, 256, p. 53-70

Usage in Publication:
St. Peter Sandstone

Modifications:	Geologic Province:	Dominant Lithology:
Overview	Michigan basin

Summary:
Unit was once thought to be completely missing in the Michigan basin by some workers. Recently, Harrison (1987) and Barnes and others (1988) have positively correlated a sandstone with the St. Peter of adjacent states. The terminology developed for this unit in recent years is complex. It has been called the Bruggers Formation by Fisher and Barratt (1985), a facies of the Prairie du Chien (or St. Lawrence) and called the Jordan Sandstone by Catacosinos (1973). It is commonly called the Prairie du Chien Sand, Massive Sand, or Knox Sandstone in Michigan basin oil field usage. Other terms applied include the New Richmond Sandstone. Authors recommend abandoning all terms but the St. Peter.

Summary of Citation: St. Peter

Publication:
Nelson, W.J., 1996, Bedrock geology of the Paducah 1 degrees x
   2 degrees quadrangle, Illinois, Kentucky, and Missouri:
   Illinois Geological Survey Bulletin, no. 102, 40 p., (incl.
   geologic map, scale 1:100,000)

Usage in Publication:
St. Peter Sandstone

Modifications:	Geologic Province:	Dominant Lithology:
Overview	Illinois basin Ozark uplift

Summary:
Ordovician (Champlainian) St. Peter Sandstone crops out in a narrow belt in Perry and Cape Girardeau Cos., MO. Consists of nearly 100 percent white to light-brown, fine- to medium-grained, well-sorted, well-rounded and frosted quartz sand. Thick-bedded to massive, displaying crossbeds and ripple marks. As much as 210 ft thick; locally absent. Thins eastward and southward to less than 50 ft. Most geologists believe it disconformably overlies Everton Formation, but Johnson (1985) reports a conformable lower contact in Scott City and Thebes quads.

Summary of Citation: St. Peter

Publication:
Nelson, W.J., Devera, J.A. and Masters, J.M., 1996, Geology of
   the Jonesboro 15-minute quadrangle, southwestern Illinois;
   Jonesboro, Mill Creek, Ware, and McClure 7.5-minute quadrangle:
   Illinois Geological Survey Bulletin, no. 101, 57 p., Also,
   1995, Illinois Geological Survey Geologic Quadrangle Map,
   IGQ-14, scale 1:24,000.

Usage in Publication:
St. Peter Sandstone

Modifications:	Geologic Province:	Dominant Lithology:
Overview	Illinois basin Ozark uplift

Summary:
Ordovician (Mohawkian) St. Peter Sandstone consists of white to light-gray, fine- to coarse-grained, well-rounded and frosted quartz sand that is weakly cemented. Beds of sandy dolomite occur locally. Thicknesses are 48 ft in Humble Oil Co. No. 1 Pickel well, NW1/4SE1/4NW1/4 sec. 21, T13S, R2W, Mill Creek 7.5-min quad, IL, and 40 ft in Ohio Oil Co. No. 1 Cross well, NW1/4NW1/4NE1/4 sec. 21, T13S, R2W, Jonesboro 7.5-min quad, IL. Two deep wells in Pulaski Co., to the southeast, penetrated 130 to 150 ft of St. Peter. In most places disconformably overlies Everton Formation.

Summary of Citation: St. Peter

Publication:
Harrison, R.W., 1997, Bedrock geologic map of the St. Louis 30'
   x 60' quadrangle, Missouri and Illinois: U.S. Geological
   Survey Miscellaneous Investigations Series Map, I-2533, 7
   p., 2 sheets, scale 1:100,000

Usage in Publication:
St. Peter Sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Overview	Illinois basin Ozark uplift

Summary:
St. Peter Sandstone of Middle Ordovician (Mohawkian) age is present in MO and IL in St. Louis area. Includes Kress Member in this area. Base marks one of the most pronounced regional unconformities in the Midcontinent area.

Summary of Citation: St. Peter

Publication:
Nelson, W.J., 1998, Bedrock geology of the Paducah 1 degrees x
   2 degrees CUSMAP quadrangle, Illinois, Kentucky, and Missouri,
   IN The Paducah CUSMAP quadrangle, resource and topographical
   investigations: U.S. Geological Survey Bulletin, 2150-B, p.
   B1-B36, (incl. geologic map, scale 1:100,000)

Usage in Publication:
St. Peter Sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Illinois basin Ozark uplift

Summary:
Ordovician (Mohawkian, or Chazyan to early Blackriveran) St. Peter Sandstone overlies Everton Formation in MO and IL (where Everton is assigned to Knox Group).

Summary of Citation: St. Peter

Publication:
Harrison, R.W., in press, Geologic map of the Thebes quadrangle,
   Missouri and Illinois: U.S. Geological Survey Geologic
   Quadrangle Map, GQ-__, scale 1:24,000

Usage in Publication:
St. Peter Sandstone*

Modifications:	Geologic Province:	Dominant Lithology:
Areal limits	Upper Mississippi embayment

Summary:
Middle Ordovician (Mohawkian) St. Peter Sandstone is mapped undivided with Everton Formation in subsurface of Upper Mississippi embayment of MO and southern Illinois basin.