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2 edition of Conodonts from the Everton dolomite and the St. Peter sandstone (lower Middle Ordovician) in a core from southwestern Indiana found in the catalog.

Conodonts from the Everton dolomite and the St. Peter sandstone (lower Middle Ordovician) in a core from southwestern Indiana

Carl Buckner Rexroad

Conodonts from the Everton dolomite and the St. Peter sandstone (lower Middle Ordovician) in a core from southwestern Indiana

by Carl Buckner Rexroad

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Published by Dept. of Natural Resources, Geological Survey in Bloomington, Ind .
Written in English

    Places:
  • Saint Peter Sandstone.,
  • Indiana.
    • Subjects:
    • Conodonts -- Indiana.,
    • Paleontology -- Ordovician.,
    • Paleontology -- Indiana.,
    • Borings -- Indiana.,
    • Saint Peter Sandstone.

    • Edition Notes

      Bibliography: p. 12-13.

      Statementby Carl B. Rexroad, John B. Droste, and Raymond L. Ethington.
      SeriesGeological Survey occasional paper ;, 39
      ContributionsDroste, John Brown, 1927-, Ethington, Raymond Lindsay, 1929-
      Classifications
      LC ClassificationsQE899 .R414 1982
      The Physical Object
      Pagination13 p., 2 leaves of plates :
      Number of Pages13
      ID Numbers
      Open LibraryOL2819848M
      LC Control Number83621827

      By J.B. Patton and D.D. Carr. 31 p., 29 figs., 2 tables. $ OP39 Conodonts from the Everton Dolomite and the St. Peter Sandstone (Lower Middle Ordovician) in a Core from Southwestern Indiana.   Conodont elements are present in all of the local formations, from the Jordan Sandstone (Mossler ), to the Prairie du Chien Group (Smith and Clark ), to the St. Peter Sandstone (Witzke ), to the Glenwood Formation (Stauffer a, Webers ), to the Platteville Formation (Stauffer and Thiel ; Webers ), to the Decorah Shale.

      The Wills Creek is defined as a moderately well bedded greenish-gray shale containing local limestone and sandstone zones, or more specifically as an olive to yellowish-gray, thin-bedded sandstone, calcareous shale, dolomite, argillaceous limestone, and sandstone. Red shale and siltstone occur in the lower part of the formation. The Mount Simon Sandstone is the basal sandstone of the Potsdam was deposited in a nearshore environment, unconformably overlying Precambrian basement. It is overlain by the Eau Claire Formation or Ordovician strata. It is presumed to be Upper Cambrian in age, though not verified. See infobox for more details. The Mount Simon formation is the equivalent of the La Motte Sandstone.

      The isotope (Sr and O) and elemental (Mg, Ca, Mn, Fe, and Sr) compositions of the various dolomites in the Middle Ordovician St. Peter Sandstone in the Michigan Basin are determined and the variations are modeled in terms of fluid-rock interaction or as mixing relations. The basal 15–45 ft (5–14 m) consists of interbedded sandstone, orthoquartzite, and thin-bedded dolomite and sandy dolomite named the Gunter Sandstone Member by Ball and Smith () for exposures along the Niangua River at Gunter (now Hahatonka Springs), Camden County, central Missouri. The thickness and composition of the Gunter Member.


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Conodonts from the Everton dolomite and the St. Peter sandstone (lower Middle Ordovician) in a core from southwestern Indiana by Carl Buckner Rexroad Download PDF EPUB FB2

Conodonts have been recovered from samples of the Everton Dolomite and of the unconformably overlying St. Peter Sandstone from the General Electric Waste Disposal No. 2 core in Posey County, southwestern Indiana.

The faunules are reported here because one documents the Everton age of rocks that in Indiana had been assigned to the Knox Dolomite. Conodonts from the Everton dolomite and the St. Peter sandstone (lower Middle Ordovician) in a core from southwestern Indiana. Bloomington, Ind.: Dept.

of Natural Resources, Geological Survey, (OCoLC) Material Type: Government publication, State or province government publication: Document Type: Book: All Authors / Contributors.

The Everton is unconformable overlain by the St. Peter Sandstone, and on the basis of data from wells in Illinois and Kentucky, it is thought to overlie unconformable the Shakopee Dolomite.

Correlation: Conodonts recovered from an Everton core from southwestern Indiana are dominated by Paraprioniodus costatus and Leptochirognathus quadratus and.

The Kimmswick Limestone is an Ordovician geologic formation in Arkansas, Illinois and s occurring in the Kimmswick include corals, bryozoans, brachiopods, conodonts, trilobites, crinoids and y: United States.

The St. Peter overlies unconformably the Everton Dolomite in southwestern Indiana and the Shakopee Dolomite, the Oneota Dolomite, or the Potosi Dolomite elsewhere in the state.

Correlation: The St. Peter Sandstone of Indiana correlates generally with the St. Peter Sandstone of Illinois, Michigan, Ohio, and Kentucky. Its lower part is known to. Generally the St. Peter Sandstone in Indiana is composed of fine to medium well-rounded and well-sorted frosted grains of quartz that are weakly cemented (Droste, Abdulkareem, and Patton, ; Droste, Patton, and Rexroad, ).

In some places secondary quartz overgrowth and siliceous intergranular cement have resulted in well-indurated rather than friable sandstone. and conodonts from the overlying Everton Formation assist in interpreting complex facies.

) identified Everton dolomite, a lime- the St. Peter Sandstone. The Everton Formation has thick members of friable, sandstone dominating local sections in the different regions.

These sands tend to be made up of white, well-rounded, frosted, medium-sized grains and are almost indistinguishable from the overlying St. Peter Sandstone. Outcrop of Everton Formation exposing Sneeds Dolomite Member (S), limestone-sandstone member A (A), Calico Rock Sandstone Member (C).

Calico Rock, Izard County, Arkansas. to a point mi west. The St. Peter Sandstone is present throughout most of the Illinois portion of the basin, except where it is eroded along part of the La Salle Anticlinorium (Mathesius [I] drill hole) and Sandwich Fault Zone in northern Illinois (Willman and Buschbachp.

62). The St. Peter is a pure, mature quartz arenite with well rounded, frosted grains. Pollock, C. A., and Rexroad, C. B.,Conodonts from the Salina Formation and the upper pad of the Wabash Formation (Silurian) in north-central Indiana: Geologica et Palaeontologica, v.

7, p and Ethington, R. L.,Conodonts from the Everton Dolomite and the St. Peter Sandstone (lower Middle Ordovician) in a core from. Peter Sandstone is essentially unfossiliferous, shaly inter- vals, particularly in the lower part of the unit, have yielded some biostratigraphically signi fi cant conodonts in drillcores from.

Search the history of over billion web pages on the Internet. The St. Clair Limestone is a geologic formation in Arkansas, Indiana, Missouri, and Oklahoma. It preserves fossils dating back to the Silurian period.

This high density, high magnisium dolomitic limestone [2] was originally classified as a marble in Oklahoma due to the fact that it would hold a high polish, hence Marble City. Just like the MNRRA corridor, we next get the Oneota Dolomite and Shakopee Formation of the Prairie du Chien Group, and the sequence would go on through the St.

Peter Sandstone, Glenwood Formation, Platteville Formation, and Decorah Shale if those units weren't all more or less eroded from the valley. Born and educated in the Midwest, Carl Buckner Rexroad, Ph.D., (–) devoted his more than 60 year career investigating Paleozoic conodonts, their taxonomy, and their biostratigraphy.

An illustration of an open book. Books. An illustration of two cells of a film strip. Video. An illustration of an audio speaker. Audio. An illustration of a " floppy disk. Software. An illustration of two photographs. Images. An illustration of a heart shape Donate.

An illustration of text ellipses. $ OP34 Conodonts from the Vienna Limestone Member of the Branchville Formation (Chesterian) in Southern Indiana. By C.B. Rexroad. 16 p., 2 pls., 1 fig., 1 table. $ OP39 Conodonts from the Everton Dolomite and the St.

Peter Sandstone (Lower Middle Ordovician) in a Core from Southwestern Indiana. Exposures of Ordovician rocks of the Sauk megasequence in Missouri and northern Arkansas comprise Ibexian and lower Whiterockian carbonates with interspersed sandstones.

Subjacent Cambrian strata are exposed in Missouri but confined to the subsurface in Arkansas. The Sauk-Tippecanoe boundary in this region is at the base of the St. Peter Sandstone. The Everton Dolomite is a geologic formation in Indiana. References. Generalized Stratigraphic Column of Indiana Bedrock.

Exceptionally preserved conodont apparatuses with giant elements from the Middle Ordovician Winneshiek Konservat-Lagerstätte, Iowa, USA - Volume 91 Issue 3 - Huaibao P. Liu, Stig M. Bergström, Brian J. Witzke, Derek E. G. Briggs, Robert M.

McKay, Annalisa Ferretti.Everton dolomite occurs below the St. Peter Sandstone and is characterized by very low [delta][sup 13]C values ([minus] to [minus]).

Joachim dolomite occurs above the St. Peter Sandstone and is characterized by somewhat higher [delta][sup 13]C values than the Everton Dolomite.Brachiopods and conodonts from the overlying Everton Formation assist in interpreting complex facies within that formation and its correlation to equivalent rocks elsewhere.

The youngest conodonts in the Everton Formation provide an age limit for the Sauk-Tippecanoe unconformity near the southern extremity of the great American carbonate bank.