Geology of the west-central part of the Southern Anthracite field and adjoining areas, Pennsylvania

Wood, Gordon H.; Trexler, J. Peter; Kehn, Thomas M.

doi:10.3133/pp602

Cited by 32 publications

(16 citation statements)

References 22 publications

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“…The Jurassic of Afghanistan has a sedimentological similarity to the Carboniferous coal-bearing sediments of Pennsylvania's (USA) anthracite fields (see Wood et al 1969). These anthracite fields are intensely deformed, are characterized by faulting and isoclinal folding, and have numerous discontinuous coal beds interbedded with conglomerates in the lowest part of the coal-bearing section.…”

Section: Jurassic Depositional Environmentsmentioning

confidence: 97%

Coal resource potential of Afghanistan

Wnuk¹

2015

International Geology Review

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Section: Jurassic Depositional Environmentsmentioning

confidence: 97%

Coal resource potential of Afghanistan

Wnuk¹

2015

International Geology Review

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“…The Mississippian‐age Mauch Chunk Formation consists of red and gray sandstones, siltstones, and shale of fluvual‐deltaic [ Edmunds et al , 1979] and floodplain origins [ Wood et al , 1969]. Its maximum thickness is approximately 1500 m near the Broad Mountain region in central Pennsylvania [ Wood et al , 1969]. The Mauch Chunk Formation is underlain by the Early Mississippian Pocono Sandstone and overlain by the Pennsylvanian Pottsville Formation.…”

Section: Geological Settingmentioning

confidence: 99%

Evaluation of paleomagnetic and finite strain relationships due to the Alleghanian Orogeny in the Mississippian Mauch Chunk Formation, Pennsylvania

Cioppa

Kodama

2003

J. Geophys. Res.

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[1] Three localities of the Mississippian Mauch Chunk Formation around the Pennsylvania Salient (Broad Top Synclinorium, Minersville Syncline, and a sublocality in the Minersville Syncline) were sampled for detailed paleomagnetic and strain analysis. Paleomagnetic analysis showed three magnetization components: an intermediate-and an SW component, unblocked over a wide range of temperatures and observed only on the northern segment of the salient. Normalized Fry strain and R f /f strain were measured in three dimensions and correlated to the paleomagnetic results. At one site (JTSF locality), a clear correlation between the amount of strain (e s ) and remanence direction indicates that axial planar cleavage formation has caused remanence rotation. The correlations at the Minersville Syncline and Broad Top Synclinorium are not definitive, but suggest that different mechanisms are operating. The observed heterogeneity in paleomagnetic response to strain indicates that the effects will be strongly dependent on the strain history at a particular site.

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“…9, this chapter), where both Lescuropteris and Danaeites are rare (Darrah, 1969). Wood et al (1969) considered the highest beds in the Anthracite region to be Conemaugh equivalents. However, the presence of these two genera indicates that beds higher than the Conemaugh (i.e., Monongahela or higher) are present in the Anthracite region (Darrah, 1968a(Darrah, , 1969.…”

Section: Darrah's (1969) Views On the Recognition Of Stephanian Equivmentioning

confidence: 99%

The Stephanian of North America: Early 1900s controversies and problems

Lyons

Wagner²

1995

Historical Perspective of Early Twentieth Century Carboniferous Paleobotany in North America

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The recognition of the Stephanian in North America was first made in the early 1900s by D. White and E. H. Sellards on the basis of plant megafossils. In the middle 1930s, their biostratigraphic conclusions were largely confirmed by W. C. Darrah and P. Bertrand (an expert on Stephanian floral biostratigraphy), who together refined the Appalachian correlations with the Westphalian D and Stephanian floras of France. W. J. Jongmans, in collaboration with W. Gothan, considered the Stephanian as a limnic facies that would be absent in the United States, where its time-equivalent in paralic and limno-paralic facies was identified by Jongmans as "Westphalian E." The latter would be characterized by the presence of Neuropteris ovata and Stephanian pecopterids. The range zone of Neuropteris ovata was equated with Westphalian D by H. Bode, who proposed the incorporation of the Stephanian into an expanded Westphalian D that he subdivided on the presence or absence of associated Stephanian megafloral elements. N. ovata ranges into the Dunkard, a unit assigned to lower Permian by D. White, W. C. Darrah, and other workers on the basis of the occurrence of Autunia (Callipteris) conferta and other Rotliegend megafloral taxa. Controversies in the literature (still partly unresolved) related to different species concepts, lack of examination of type specimens on both sides of the Atlantic, the phytogeographic distribution of late Carboniferous megafloral taxa in Europe and North America (Amerosinian Realm), the biostratigraphic significance of endemic species, the stratigraphic ranges of key megafloral elements, the role of biofacies, and the presence or absence of stratigraphic breaks and their relative importance in the Carboniferous successions in Europe as well as in North America. Jongmans's Westphalian E Stage has not been accepted because it is essentially a floral facies concept and not a chronostratigraphic unit.A historical analysis of work on the Carboniferous floras of North America, with particular regard to the Stephanian, is accompanied by a brief review of the problems attached to the type Stephanian of Europe, and a full discussion is presented of the views expressed by the European palaeobotanists who traveled to the United States.Acknowledgments for this chapter are on p. 388.

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Geology of the west-central part of the Southern Anthracite field and adjoining areas, Pennsylvania

Cited by 32 publications

References 22 publications

Coal resource potential of Afghanistan

Coal resource potential of Afghanistan

Evaluation of paleomagnetic and finite strain relationships due to the Alleghanian Orogeny in the Mississippian Mauch Chunk Formation, Pennsylvania

The Stephanian of North America: Early 1900s controversies and problems

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