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Broadtop Synclinorium

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Journal Article
Journal: AAPG Bulletin
Published: 01 July 1975
AAPG Bulletin (1975) 59 (7): 1136–1150.
...Frank Jacobeen; William H. Kanes ABSTRACT The geology of the Broadtop synclinorium, Wills Mountain anticlinorium, and Allegheny frontal zone is interpreted from regional cross sections which use extensive surface, seismic, and subsurface well control in the synclinorium and surface, and scattered...
FIGURES | View All (15)
Journal Article
Journal: AAPG Bulletin
Published: 01 January 1975
AAPG Bulletin (1975) 59 (1): 161–162.
... synclinorium. Not only is the actual structure of a part of the Broadtop synclinorium depicted, but also, and more importantly, an explanation of the successive stages of deformation (their Fig. 14) is attempted. Here a question arises. What happened to the steeply westward dipping toe of the overthrust...
Journal Article
Journal: AAPG Bulletin
Published: 01 January 1975
AAPG Bulletin (1975) 59 (1): 162–163.
... synclinorium. Figure 14b is incorrect in that lines labeled Do, St, and Om should all be parallel with the decollement in the left side of the section. This was an error by the authors in drawing that part of the diagram. This diagram represents an early intermediate step in the Broadtop thrust...
Journal Article
Journal: AAPG Bulletin
Published: 01 September 1974
AAPG Bulletin (1974) 58 (9): 1893.
...F. H. Jacobeen, Jr.; W. H. Kanes Abstract The Broadtop synclinorium is a large regional synclinorium which extends from central Pennsylvania to western Virginia. Critical study of more than 125 mi of seismic reflection surveys, 22 wells, and surface maps shows that the synclinorium is broken...
Journal Article
Journal: AAPG Bulletin
Published: 01 March 1974
AAPG Bulletin (1974) 58 (3): 362–375.
...Frank Jacobeen, Jr.; William H. Kanes ABSTRACT The Broadtop synclinorium is a large regional synclinorium which extends from central Pennsylvania to western Virginia. It is the most western of the synclinoria in the Valley and Ridge province, and locally may extend to within 15 mi of the Allegheny...
FIGURES | View All (18)
Image
—Regional cross section across southern <span class="search-highlight">Broadtop</span> <span class="search-highlight">synclinorium</span>, Wills Mounta...
Published: 01 July 1975
Fig. 15 —Regional cross section across southern Broadtop synclinorium, Wills Mountain anticlinorium, Allegheny frontal zone, and Appalachian plateau. Location of section is shown on Figure 2 ( C - C ′).
Image
—Regional cross section across central <span class="search-highlight">Broadtop</span> <span class="search-highlight">synclinorium</span>, Wills Mountai...
Published: 01 July 1975
Fig. 13 —Regional cross section across central Broadtop synclinorium, Wills Mountain anticlinorium, and Allegheny frontal zone. Location of section is shown on Figure 2 ( B - B ′).
Image
—Regional cross section across northern <span class="search-highlight">Broadtop</span> <span class="search-highlight">synclinorium</span>, Wills Mounta...
Published: 01 July 1975
Fig. 11 —Regional cross section across northern Broadtop synclinorium, Wills Mountain anticlinorium, and the Allegheny frontal zone. Location of section is shown on Figure 2 ( A - A ′).
Image
—Regional setting of <span class="search-highlight">Broadtop</span> <span class="search-highlight">synclinorium</span> and other prominent contiguous s...
Published: 01 March 1974
Fig. 1 —Regional setting of Broadtop synclinorium and other prominent contiguous structural features in Pennsylvania, Maryland, West Virginia, and Virginia.
Image
—Surface geology of central <span class="search-highlight">Broadtop</span> <span class="search-highlight">synclinorium</span>. Map compiled from state ...
Published: 01 March 1974
Fig. 2 —Surface geology of central Broadtop synclinorium. Map compiled from state geologic maps of West Virginia ( Cardwell et al. , 1968 ), Maryland ( Cleaves et al. , 1968 ), and Pennsylvania ( Gray et al. , 1960 ).
Image
—<span class="search-highlight">Broadtop</span> <span class="search-highlight">synclinorium</span> and location of regional cross section. Seismic data...
Published: 01 March 1974
Fig. 15 —Broadtop synclinorium and location of regional cross section. Seismic data were available for areas between well control.
Image
—Photograph showing an east-dipping imbricate thrust cutting through fronta...
Published: 01 September 1986
Figure 12 —Photograph showing an east-dipping imbricate thrust cutting through frontal limb of anticline in Devonian Hampshire Formation within Broadtop synclinorium. Fault loses displacement upsection. Note intense faulting and fracturing in footwall of thrust. Structure of Broadtop synclinorium
Journal Article
Journal: Geosphere
Published: 02 March 2023
Geosphere (2023) 19 (2): 449–470.
... depocenters during the Alleghanian orogeny: one above Broadtop synclinorium, with as much as 7 km of Pennsylvanian–Permian load probably sourced by the erosion of rocks uplifted by the growing Blue Ridge massif and emplacement of the North Mountain thrust sheet; the other above the Anthracite belt...
FIGURES | View All (9)
Series: Geological Society, London, Special Publications
Published: 01 January 2013
DOI: 10.1144/SP371.9
EISBN: 9781862396340
... Formation in a syncline immediately east of the Broadtop synclinorium in the Valley and Ridge province in Pennsylvania. The rocks contain an intermediate-temperature (IT) component with south-southeasterly declinations and shallow up inclinations that was removed by 310–350 °C, interpreted as a chemical...
FIGURES | View All (7)
Journal Article
Journal: AAPG Bulletin
Published: 01 September 1974
AAPG Bulletin (1974) 58 (9): 1892–1893.
... contains four morphostructural zones, from northwest to southeast, the folded foreland (southeastern Appalachian Plateau), the frontal imbricates (Nittany anticlinorium, Wills Mountain-Friends Cove anticlinorium), the interthrust syncline (Broadtop synclinorium, Greendale-Kimberling syncline) and the back...
Image
—Stages in development of <span class="search-highlight">Broadtop</span> and Whip Cove thrust faults as interpret...
Published: 01 March 1974
more became decollement. This ramping from near basement locates west side of Broadtop synclinorium. c, Continued compression from east caused formation of Whip Cove thrust ( B-B’ ) above Trenton at east side of section. When Whip Cove thrust reached eastward-dipping ramp of Ordovician carbonate rocks
Image
—Regional structural cross section from west of Allegheny Front to eastern ...
Published: 01 March 1974
Fig. 16 —Regional structural cross section from west of Allegheny Front to eastern margin of Broadtop synclinorium. For line of section, see Figure 15 .
Image
—Variable-density section and structural interpretation of seismic line cro...
Published: 01 July 1975
Fig. 10 —Variable-density section and structural interpretation of seismic line crossing Rockingham County, Virginia. Line crosses southern Broadtop synclinorium ( Fig. 2 , IV).
Image
—Variable-density section and structural interpretation of seismic line cro...
Published: 01 July 1975
Fig. 9 —Variable-density section and structural interpretation of seismic line crossing Hardy County, West Virginia. Line crosses central Broadtop synclinorium ( Fig. 2 , III).
Image
—Variable-density section and structural interpretation of seismic line cro...
Published: 01 July 1975
Fig. 8 —Variable-density section and structural interpretation of seismic line crossing Hampshire County, West Virginia (modified from Jacobeen and Kanes, 1974 ). Line crosses central Broadtop synclinorium ( Fig. 2 , II).