... : Berea grit Bedford shale Cleveland black shale Chagrin formation Huron black shale in which the type Huron may be largely contemporaneous with the Chagrin 4 and only partly identical with the “Huron” beneath the Chagrin, in the well logs. More recently these strata of northeastern Ohio have been most...

...Joseph T. Hannibal; Rodney M. Feldmann Abstract Trace fossils penetrating siltstone beds in the Chagrin Formation (Late Devonian, Famennian) at four localities in northeastern Ohio are herein named Chagrinichnites osgoodi. It is suggested that the trace maker was an echinocarid arthropod that made...

... and to articulate brachiopods. Brachiopods have also been found attached to Chagrin Sphenothallus. Bedford-Berea sequence (Famennian) specimens from northern Kentucky and Meadville Member (Kinderhookian or Osagian) specimens from the Cuyahoga Formation of northeast Ohio are usually preserved as flattened tubes...

..., and increases slightly in the basal Cleveland Shale; the decrease is more marked in the upper Cleveland Shale, and is most notable in the Bedford Shale. Acritarch abundance also lessens up-section through the Upper Devonian formations, with minima in the upper fourth of the Chagrin Shale and the upper half...

... emphasis on five stratigraphic units: Chagrin Shale, Huron Member of the Ohio Shale, White Slate (correlates with Java Formation and Angola Shale Member of the West Falls Formation), Rhinestreet Shale Member of the West Falls Formation, and the Marcellus Shale. After calculating mean percentages within...

...WALLACE DE WITT, JR. Abstract This paper summarizes stratigraphic information obtained in a field study of Upper Devonian and lower Mississippian rocks of northeastern Ohio and northwestern Pennsylvania. The upper part of the Chagrin shale has been traced from northeastern Ohio into the Riceville...

...JAMES L. MURPHY Abstract Remains of Protosalvinia ( Foerstia ), a fucalean alga restricted to Upper Devonian strata, are locally abundant in the Chagrin Shale Formation along Conneaut Creek in Ashtabula County, Ohio. Protosalvinia also occurs along Conneaut Creek and Little Elk Creek in Erie County...

...GUY CAMPBELL Abstract The New Albany shale in Indiana consists of the Devonian Blocher and Blackiston formations (90 feet thick) and the Mississippian Sanderson, Underwood, and Henryville formations (11 feet thick). This classification is based on floral and faunal content. The Underwood contains...

... County, Pennsylvania; loc. 22, Flint Oil and Gas Bennett 1, Chautauqua County, New York). Three formations constitute the Middle and Upper Devonian shales of northern Ohio: the Olentangy Shale ( Winchell, 1874 ), the Ohio Shale ( Andrews, 1870 , p. 62) and its eastern equivalent, the Chagrin Shale...

... surface. Of the 900 feet of Chagrin shale in this area nearly 300 feet are exposed. The formation thickens eastward in the northeastern part of Ohio, from 500 feet at Cleveland to at least 1,200 feet along the eastern boundary of the state. 9 The age of the Cleveland shale, which overlies...

... of the Chagrin Shale in eastern Ohio. 1 Manuscript received, December 11, 1977; accepted, February 6. 1978. 2 Exxon Co., U.S.A., New Orleans, Louisiana 70161. 3 U.S. Geological Survey and University of Cincinnati, Cincinnati, Ohio 45221. 4 University of Cincinnati, Cincinnati...

... One specimen from sample U6 240.2 m, Mainoru Formation. Spheromorph with very thin chagrinate wall and small sinuous folds, and one lanceolate fold predominantly near the margins of compressed vesicles. Size 3–93 µm in minimum diameter (mean: 28.7 µm, σ=16.8 µm, N=149). Two...

...D. J. Russell ABSTRACT The Kettle Point Formation is an Upper Devonian unit consisting of organic carbon - rich black shale and organic carbon - poor green mudstone and shale. Instead of clay content or grain size, the gamma-ray log of this unit is an indicator of total organic carbon content (TOC...

...VLADIMIR N. SERGEEV; J. WILLIAM SCHOPF Abstract Carbonaceous bedded cherts of the late Neoproterozoic (Cryogenian) ∼800 to 750 Ma old Chichkan Formation of South Kazakhstan contain an abundant, diverse assemblage of exquisitely preserved microorganisms. Like many Proterozoic microbiotas...

... petrography and high-resolution, steady-state core analysis has given us a better understanding of the mechanics of gas transport through pore systems of low-permeability formations. Tight rock samples at IGT normally are impregnated with Maraglas® 655 resin and 555 hardener, a low-viscosity clear...

... and the writer during the spring of 1925. At that time Butts appeared to be completely satisfied that the Knapp was Mississippian in age and that the formation was older than Pocono; the upper part being presumably Burlington or New Providence in age and the lower part Kinderhook in age. The fact that Caster has...

... . Historical Biology , 5 : 197 – 214 . Feldmann , R. M , and S Mckenzie . 1981 . Echinocaris multispinosis, a new echinocarid (Phyllocarida) from the Chagrin Formation (Late Devonian) of Ohio . Journal of Paleontology , 55 : 383 – 388 . Feldmann , R. M , R. M Boswell , and T...

... Protosalvinia are associated with a disconformity and may be found with conodonts of the Lower expansa Zone. In the Ellicott Shale Member of the Chadokoin Formation in western New York and Pennsylvania, as well as in equivalent strata of the Chagrin and Huron shales in Ohio, Protosalvinia have been reported...