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Niagaran coral reefs

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Journal Article
Journal: GSA Bulletin
Published: 30 June 1928
GSA Bulletin (1928) 39 (2): 579–620.
... described the Silurian reefs of Gotland, and did not hesitate to call them reefs . Since then the literature of ancient coral reefs has grown enormously in Europe, but in America the ground which Chamberlin so carefully prepared in his beautiful description of the Niagaran reefs of Wisconsin (1877) has lain...
Journal Article
Journal: GSA Bulletin
Published: 30 September 1931
GSA Bulletin (1931) 42 (3): 707–718.
... group of Indiana comprises the lower Mississippian rocks between the Rockford (Kinderhook) limestone beneath and the Harrodsburg (Warsaw) limestone above. Prior . . . 2 E. R, Cumings and R. R. Shrock: Niagaran coral reefs of Indiana and adjacent states and their stratigraphic relations. Bull...
Journal Article
Journal: GSA Bulletin
Published: 31 December 1933
GSA Bulletin (1933) 44 (6): 1135–1142.
..., no references were found to bioherms in rocks of Proterozoic age. Indeed, several paleontologists have suggested that organisms did not acquire . . . 7 E. R. Cumings and R. R. Shrock: Niagaran coral reefs of Indiana and adjacent States and their stratigraphic relations. Bull. Geol. Soc. Am., vol. 39, 1928...
Journal Article
Journal: AAPG Bulletin
Published: 01 October 1972
AAPG Bulletin (1972) 56 (10): 2109.
... thicken and lose their hematitic character. A belt of pinnacle reefs marks the approach to the basin margin. The Niagaran pinnacle reefs have a lower crinoidal zone and an upper coral-algal zone. At the basin margin the Niagaran thickens abruptly into a dolomitized barrier reef complex. The barrier reefs...
Journal Article
Journal: AAPG Bulletin
Published: 01 April 1964
AAPG Bulletin (1964) 48 (4): 397–426.
... would then cause a marginal expansion of the bank by the accumulation of the debris. Lecompte (1938) , after visiting several Niagaran reefs in Indiana including those at Bluffton and Wabash, compared them with modern coral reefs. He questioned the true reef nature mainly because the structures do...
FIGURES | View All (26)
Journal Article
Journal: AAPG Bulletin
Published: 01 March 1963
AAPG Bulletin (1963) 47 (3): 405–440.
... was characterized by an organic framework or core and a surrounding, preponderantly bioclastic, flank deposit on which many satellite reefs developed. Initial reef development was probably from coalescing coral growth centers on the floor of a Silurian epicontinental sea. Upon attainment of wave base...
FIGURES | View All (27)
Series: SEPM Core Workshop Notes
Published: 01 January 1983
DOI: 10.2110/cor.83.01.0002
EISBN: 9781565762596
... supplanted by a community of stick corals. The substrate coarsened with the admixture of coral skeletons, and the reef was eventually capped by a frame-building stromatoporoid community. In contrast to other Niagaran reefs, the vertical succession of biofacies was not due to upward reef growth above wave...
Journal Article
Journal: AAPG Bulletin
Published: 01 September 1963
AAPG Bulletin (1963) 47 (9): 1682–1708.
... not contribute any debris. Their associated sedimentary sequences exhibit textural changes expressing a general shallowing. In all respects, the Burnt Bluff bioherms are entirely different from the classical Niagaran reefs of the Great Lakes area. The principal textural effect of dolomitization has been...
FIGURES | View All (22)
Journal Article
Journal: AAPG Bulletin
Published: 01 January 1974
AAPG Bulletin (1974) 58 (1): 34–62.
... to deposition of the surrounding, cyclic Salina evaporites and carbonates ( Fig. 13 ). Model 1 proponents believe that the upward succession of biotic facies observed in the reefs (crinoidal to coral to algal) reflects increasing salinites in the Niagaran sea which culminated with deposition of the A-1...
FIGURES | View All (24)
Journal Article
Journal: AAPG Bulletin
Published: 01 May 1982
AAPG Bulletin (1982) 66 (5): 604.
...J. E. McGovney; P. J. Lehmann; J. F. Sarg Eustatic sea-level changes controlled Niagaran reef and off-reef facies and eogenesis both in the Michigan basin and on the adjacent platform, as shown by surface (Thornton, northeast Illinois; Pipe Creek Jr., central Indiana) and subsurface reef studies...
Journal Article
Journal: AAPG Bulletin
Published: 01 May 1982
AAPG Bulletin (1982) 66 (5): 573–574.
...-coral facies, and brachiopod facies. Additionally, empirical data were used to define an algal facies. Pinnacle reefs initially formed as carbonate mud mounds when bryozoan and crinozoan “mud dwellers” baffled and trapped sediment. This mechanism allowed the mounds to grow upward into a zone near wave...
Series: SEPM Core Workshop Notes
Published: 01 January 1980
DOI: 10.2110/cor.80.01.0032
EISBN: 9781565762565
...Abstract Abstract Most of a 450 foot (150 m), gas-bearing Niagaran reef was cored by the Shell, St. Union 1-8. The well is located approximately in the center of the pinnacle reef belt (Fig 1). Three distinct facies described by Sears and Lucia (1979) are present in the core. The facies...
Series: Special Publications
Publisher: SEPM (Society for Sedimentary Geology)
Published: 01 January 2017
DOI: 10.2110/sepmsp.109.02
EISBN: 9781565763531
... pattern is remarkably similar to those previously discussed for Columbus III and STF. The reef core is comprised of coral–stromatoporoid boundstone and skeletal wackestone facies and has a total Brown Niagaran thickness of ~120 m. In the leeward proximal reef apron environment ( Fig. 11 , well #28403...
FIGURES | View All (13)
Journal Article
Journal: AAPG Bulletin
Published: 01 June 1974
AAPG Bulletin (1974) 58 (6): 934–956.
...Robert H. Shaver Abstract This synthesis of Niagaran (Middle Silurian) geology for the reef-outcrop area of northern Indiana and adjacent westernmost Ohio is the first for this area to integrate H. A. Lowenstam’s concept of Silurian reefs in the Great Lakes area with close regional stratigraphic...
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Journal Article
Journal: AAPG Bulletin
Published: 01 June 1929
AAPG Bulletin (1929) 13 (6): 645–658.
... formation, it is almost necessary to assume some kind of barrier between the two areas. The reef (as the writer interprets it) of gray limestone north of Bone Springs Canyon probably formed this barrier. Cumings and Schrock have described the Niagaran coral reefs of Indiana and adjacent states 2...
FIGURES
Journal Article
Published: 01 October 1977
Canadian Journal of Earth Sciences (1977) 14 (10): 2226–2231.
...David R. Kobluk; David J. Bottjer; Michael J. Risk Abstract The size distribution and orientation of massive hemispherical tabulate corals and hemispherical stromatoporoids from the Fossil Hill and Manitoulin Formations on Manitoulin Island (Niagaran and Alexandrian, Ontario), and of hemispherical...
Journal Article
Journal: AAPG Bulletin
Published: 01 February 1966
AAPG Bulletin (1966) 50 (2): 327–350.
... in northwestern Ohio. The southern rim is the Kankakee arch in northern Indiana, and the western boundary is the Wisconsin arch. The Canadian Precambrian shield forms its northern border ( Fig. 1a ). Types of Niagaran reefs .—The difference in gross lithology and fauna within the reefs is basically...
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Journal Article
Published: 01 December 1985
Bulletin of Canadian Petroleum Geology (1985) 33 (4): 421–426.
... AND GUELPH REEFS Rocks of the Amabel Formation were deposited iscon- formably on the Fossil Hill Formation throughout the study area. The Amabel rocks represent the initial sedi- mentation of a Middle Niagaran transgression a d can be interpreted as having accumulated in a shallow open plat- form marine...
Journal Article
Journal: AAPG Bulletin
Published: 01 January 1963
AAPG Bulletin (1963) 47 (1): 129–149.
... Niagaran sequence of the northern rim of the Michigan basin belongs to one large transgressing littoral-lagoon-barrier reef association. Evidence for this hypothesis is seen in the results of insoluble residue analyses made from samples collected at typical Manitoulin Island sections. An unconformity...
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Journal Article
Journal: AAPG Bulletin
Published: 01 March 1975
AAPG Bulletin (1975) 59 (3): 535–538.
... of the reefs, by the authors’ own admission, is highly questionable. Likewise, the Ludlovian ages are still consistent with an overall Niagaran age. Consequently, all that can be derived positively from these new paleontologic determinations is a reconfirmation that the reefs are of Niagaran age...