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east-central Pennsylvania

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Journal Article
Published: 01 March 1970
Journal of Sedimentary Research (1970) 40 (1): 324-333.
Journal Article
Journal: AAPG Bulletin
Published: 01 February 1961
AAPG Bulletin (1961) 45 (2): 256-263.
Journal Article
Journal: Geology
Published: 01 September 1973
Geology (1973) 1 (1): 33-36.
...Ina B. Alterman Abstract Microstructures in the Martinsburg Formation in east-central Pennsylvania provide strong evidence supporting Maxwell's hypothesis (1962) that the slaty cleavage formed during deformation of unconsolidated sediments by rotation of phyllosilicate grains in a loosely compacted...
Published: 06 October 2006
DOI: 10.1130/2006.fld008(01)
EISBN: 9780813756080
... dedication address (Stop 6). Abstract The Battle of Gettysburg in south-central Pennsylvania was the largest ever fought on American soil and one of the most significant in its consequences. Moreover, more clearly than most, it demonstrates the roles which underlying geology and surface topography can...
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Journal Article
Journal: PALAIOS
Published: 01 September 2007
PALAIOS (2007) 22 (5): 513-527.
... Mountain, East Central Utah , in Vertebrate Paleontology in Utah: Utah Geological Survey, Miscellaneous Publication 99-1 , p. 201 – 217 . Kirkland , J.I. , Scheetz , R.D. , and Foster , J.R. , 2005a , Jurassic and Lower Cretaceous dinosaur quarries of western Colorado and eastern...
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Journal Article
Journal: PALAIOS
Published: 01 September 2007
PALAIOS (2007) 22 (5): 500-512.
..., suggesting fossilization in situ, at a later time than those from Units 1 and 2. The Crystal Geyser Dinosaur Quarry (CGDQ) is located in Grand County, ∼16 km south of Green River, in east-central Utah ( Fig. 1 ) on lands managed by the U.S. Bureau of Land Management and has been excavated...
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Journal Article
Journal: GSA Bulletin
Published: 01 February 1992
GSA Bulletin (1992) 104 (2): 219-232.
...THOMAS W. GARDNER; DAVID VERDONCK; NICHOLAS M. PINTER; RUDY SLINGERLAND; KEVIN P. FURLONG; THOMAS F. BULLARD; STEPHEN G. WELLS Abstract The Pacific coast of Costa Rica lies within the Central American forearc and magmatic-arc region that was created by northeastward subduction of the Cocos plate...
Journal Article
Journal: Geology
Published: 01 March 1994
Geology (1994) 22 (3): 263-266.
... Panama deformed belt, west through the Valle Central in Costa Rica, and then southwest along the East Nicoya Fracture Zone to intersect the Middle America Trench. Terrace correlation and basin asymmetry indicate a major change in tectonic evolution across the boundary, where three regional northeast...
Journal Article
Journal: Geosphere
Published: 01 August 2007
Geosphere (2007) 3 (4): 272-281.
... tectonically active fault-bounded ranges. For example, a local deviation exists along the north flank of the Eastern Snake River Plain where the Centennial Range (Centennial fault) controls the location of the actual divide (Fig. 4) . The tectonically active east-west–oriented Centennial Range ( Pierce...
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Journal Article
Journal: AAPG Bulletin
Published: 01 March 2014
AAPG Bulletin (2014) 98 (3): 483-513.
...°–800° API GR values. The upper unit, representing approximately the upper two-thirds of the member, is composed of silt-rich, and to the east sandy, mudstones with 1%–3% TOC and about 200° API GR. In central Pennsylvania, this lithologic division occurs approximately at the 1-in. (2.5-cm)-thick middle...
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Journal Article
Journal: GSA Bulletin
Published: 01 November 1951
GSA Bulletin (1951) 62 (11): 1347-1370.
... Chagrin shale. The Bedford shale and the Berea sandstone have been traced eastward from northern Ohio to the vicinity of Meadville in central Crawford County, Pennsylvania. The Bedford shale is underlain by the Cleveland member of the Ohio shale west of the Grand River valley and by the Cussewago...
Journal Article
Published: 01 August 2013
Bulletin of the Seismological Society of America (2013) 103 (4): 2295-2304.
... seismic profile was deployed crossing the Banggong–Nujiang suture zone ( BNSZ ) at about 89.5° E in central Tibet, recording both active and passive source data (Fig.  2 ). This was supplemented by 8 stations nominally arranged in a cross line intersecting the main profile at about 32° N. Average station...
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Journal Article
Journal: GSA Bulletin
Published: 01 March 2014
GSA Bulletin (2014) 126 (3-4): 289-306.
... de Buenos Aires, as BAFCB p.m. 254–258. 25 04 2013 03 09 2013 20 11 2013 Sample OR1016 was also prepared for analysis of calcareous nannofossils at Pennsylvania State University following Bown and Young (1998) . This sample was chosen because SEM images of the planktonic...
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Series: GSA Field Guide
Published: 01 January 2011
DOI: 10.1130/2011.0020(02)
EISBN: 9780813756202
... in the Union Springs Member of the Marcellus at the Delmar Finck quarry along Pikes Peak Road off of Route 44 east northeast of Elimsport, Pennsylvania. Bedding is 075°/10°. Joints plotted in present coordinates (left) and rotated to their position with horizontal bedding using a fold axis plunging 05° toward...
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Journal Article
Journal: GSA Bulletin
Published: 01 August 1943
GSA Bulletin (1943) 54 (8): 1067-1122.
...BRADFORD WILLARD Abstract The chief expression of Ordovician clastic sediments in Pennsylvania is the Martinsburg group which forms a broad band from the east-central to south-central border. In central Pennsylvania is an isolated area of Reedsville shale. The Bald Eagle conglomerate and sandstone...
Journal Article
Journal: Interpretation
Published: 22 May 2015
Interpretation (2015) 3 (3): SV17-SV33.
... as proxies for understanding the paleodepositional environments of formations. A high-resolution geochemical data set has been constructed for the Union Springs Member along a transect of cores from proximal to distal in the Appalachian Basin in central Pennsylvania using major, minor, and trace elemental...
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Journal Article
Journal: GSA Bulletin
Published: 01 July 2000
GSA Bulletin (2000) 112 (7): 1023-1042.
...Mark J. Johnsson Abstract East-central Alaska is a tectonically significant region between parautochthonous North America and the Arctic Alaska terrane to the north. The tectonic evolution of the area is recorded in Late Jurassic to early Tertiary sedimentary rocks of the Kandik River terrane. Fine...
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Journal Article
Published: 26 December 2017
Bulletin of the Seismological Society of America (2017) 108 (1): 145-154.
... Arabia. Six events are located in the east Anatolian plateau, meeting existing GT 5 95 % criteria developed for the tectonically analogous Tibetan plateau. Nine events are located in the Tanzania craton and 15 in the Arabian shield, meeting GT 5 95 % criteria developed for the tectonically analogous...
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Journal Article
Journal: Geology
Published: 01 November 2009
Geology (2009) 37 (11): 967-970.
... by the Kutztown University Research Committee, Pennsylvania State System of Higher Education Professional Development Committee, Central Connecticut State University School of Arts and Sciences Dean's Initiative, and Grand Staircase–Escalante National Monument. Sag pond fill type permits the interpretation...
FIGURES
Journal Article
Published: 01 June 2015
Journal of Sedimentary Research (2015) 85 (6): 699-714.
.... Jr., Adams R. 2003 , Interpreted regional photomosaics and cross section, Cretaceous Ferron Sandstone, east-central Utah : Utah Geological Survey , Open-File Report 412. Barton M.D...
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