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Ellisville Pluton

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... belts that include the Ordovician Chopawamsic and Quantico Formations, the narrow neck of the Late Ordovician Ellisville pluton, and mélange zone III of the Mine Run Complex. The region was affected by at least two ductile deformational events, one in the early Paleozoic that was broadly synchronous...
... and saprolite/bedrock of the Chopawamsic Formation and Ellisville pluton. See legend for color guide. Figure 6. Outcrop photos of Chopawamsic Formation at Yanceyville. (A) Looking northeastward down lineation defined by strongly elongate “clasts” of light-colored felsic volcanic rock in a more biotite...
... southeast of the Ordovician–Silurian Ellisville Granodiorite pluton tail. The following three clusters of shallow (<3 km) aftershocks illuminate other faults. (1) An elongate cluster of early aftershocks, ~10 km east of the Quail fault zone, extends 8 km from Fredericks Hall, strikes ~035°–039...
.... Simplified geologic map of the field trip area, north-central Virginia Piedmont. Geologic unit abbreviations are: C—Chopawamsic Formation; E—Ellisville granodiorite pluton; F—Falmouth intrusive suite; G—Garrisonville mafic complex; GV—Goldvein granite pluton; I, II, III, IV—Units I-IV of the Mine Run complex...
Journal Article
Published: 01 September 2021
The Journal of Geology (2021) 129 (5): 595–624.
... carapace of diffuse deformation lie within the Chopawamsic Formation and Ellisville plutonic rocks ( fig. 2 ; Spears 2012 ; Burton et al. 2014 , 2015 a , 2015 b , 2019 ). Trenching into weathered bedrock at one locality along the Chopawamsic-Ellisville contact in 2012–2014 exposed a zone...
FIGURES
First thumbnail for: River Terrace Evidence of Tectonic Processes in th...
Second thumbnail for: River Terrace Evidence of Tectonic Processes in th...
Third thumbnail for: River Terrace Evidence of Tectonic Processes in th...
Journal Article
Published: 01 July 2000
The Journal of Geology (2000) 108 (4): 363–380.
... Ma from the Chopawamsic Formation (Tilton et al. 1970 ). Pavlides et al. ( 1996 ) also reported U-Pb zircon crystallization ages of 440 Ma and 450 Ma for the Ellisville and Lahore plutons that intruded the northern portion of the Chopawamsic terrane. Recent U-Pb ion microprobe analyses from...
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First thumbnail for: U-Pb Geochronologic, Nd Isotopic, and Geochemical ...
Second thumbnail for: U-Pb Geochronologic, Nd Isotopic, and Geochemical ...
Third thumbnail for: U-Pb Geochronologic, Nd Isotopic, and Geochemical ...
Journal Article
Published: 08 December 2021
Seismological Research Letters (2022) 93 (2A): 943–956.
... amounts of quartzite that are sedimentary in origin. The sediment was deposited in a postorogenic successor basin and was subsequently deformed during the Alleghanian orogeny ( Carter et al. , 2020 ). The granodiorite Ellisville Pluton and associated narrow neck are interpreted as intruding the volcano...
FIGURES
First thumbnail for: Velocity Models for the Crust Hosting the Main Aft...
Second thumbnail for: Velocity Models for the Crust Hosting the Main Aft...
Third thumbnail for: Velocity Models for the Crust Hosting the Main Aft...
Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 22 December 2023
Lithosphere (2023) 2023 (1): lithosphere_2023_254.
..., Western China,” Geological Society of America Bulletin , vol. 122 , nos. 3–4 , pp . 627 – 640 , 2010 . 70 K. S. Hughes , J. P. Hibbard , and B. V. Miller , “Relationship between the Ellisville Pluton and Chopawamsic fault: establishment of significant late Ordovician...
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First thumbnail for: Melting of Subducted Continental Crust in the Cimm...
Second thumbnail for: Melting of Subducted Continental Crust in the Cimm...
Third thumbnail for: Melting of Subducted Continental Crust in the Cimm...
Journal Article
Published: 26 March 2019
Canadian Journal of Earth Sciences (2019) 56 (10): 1061–1076.
... . Reviews in Mineralogy and Geochemistry , 53 : 27 – 62 . doi: 10.2113/0530027 . Hughes , K.S. , Hibbard , J.P. , and Miller , B.V. 2013 . Relationship between the Ellisville pluton and Chopawamsic fault: Establishment of significant Late Ordovician faulting in the Appalachian...
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First thumbnail for: Further detrital zircon evidence for peri-Gondwana...
Second thumbnail for: Further detrital zircon evidence for peri-Gondwana...
Third thumbnail for: Further detrital zircon evidence for peri-Gondwana...
Journal Article
Journal: GSA Bulletin
Published: 21 February 2018
GSA Bulletin (2018) 130 (7-8): 1339–1354.
...://doi.org/10.1016/j.quaint.2007.04.007 . Hughes , K.S. , Hibbard , J.P. , and Miller , B.V. , 2013 , Relationship between the Ellisville pluton and Chopawamsic fault: Establishment of significant Late Ordovician faulting in the Appalachian Piedmont of Virginia : American Journal...
FIGURES
First thumbnail for: Taconic suprasubduction zone magmatism in southern...
Second thumbnail for: Taconic suprasubduction zone magmatism in southern...
Third thumbnail for: Taconic suprasubduction zone magmatism in southern...
Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 11 February 2025
Lithosphere (2024) 2024 (Special 15): lithosphere_2024_129.
... between two relatively unfractured geologic units, the westernmost potentially being the Ellisville Pluton. The contacts between the geologic units are interpreted to strike northward and seismicity was confined to the highly fractured north-south striking geologic unit. We interpret the joints...
FIGURES
First thumbnail for: High-Resolution Fault Geometry and Motion of the A...
Second thumbnail for: High-Resolution Fault Geometry and Motion of the A...
Third thumbnail for: High-Resolution Fault Geometry and Motion of the A...
Series: Geological Society, London, Special Publications
Published: 13 January 2021
DOI: 10.1144/SP503-2019-247
EISBN: 9781786209917
... and Jacobi 1996 ); northern Vermont ( Kim et al. 2003 ); Lahore and Ellisville plutons ( Pavlides et al. 1994 ; Hughes et al. 2013 ). Boulder Mountain Gneiss appears to be a composite unit based on the two different compositions in these and subsequent discrimination plots. As labelled, small pale...
Series: GSA Field Guide
Published: 01 January 2012
DOI: 10.1130/2012.0029(10)
EISBN: 9780813756295
... from metavolcanic rocks yield Ordovician ages of 450-470 Ma (Coler et al., 2000 ; Horton et al., 2010 ). A suite of felsic to intermediate plutons intrudes the Chopawamsic volcanic sequence. In central Virginia, the main plutons include the Columbia and Ellisville bodies (Fig. 2 ) that yield U-Pb...
Series: GSA Field Guide
Published: 01 January 2015
DOI: 10.1130/2015.0040(02)
EISBN: 9780813756400
... ages from metavolcanic rocks yield Ordovician ages of 450-470 Ma ( Coler et al., 2000 ; Horton et al., 2010 ; Hughes et al., 2013 ). A suite of felsic to intermediate plutons intrudes the Chopawamsic volcanic sequence. In central Virginia, the main bodies are the Columbia and Ellisville plutons...
Series: GSA Field Guide
Published: 01 January 2015
DOI: 10.1130/2015.0040(06)
EISBN: 9780813756400
... as young as 390 Ma, but Hughes et al. (2013) have now dated the Ellisville pluton as young as ca. 437 Ma and interpreted the Quantico Formation similarly as a Silurian successor basin. However, the Horton et al. (2010) date suggests that the Quantico is not a successor basin, as its age cannot be older...
Series: GSA Field Guide
Published: 01 January 2015
DOI: 10.1130/2015.0040(05)
EISBN: 9780813756400
... of Appalachian Late Ordovician volcanic arc units found in the Piedmont of Maryland and Virginia. Specifically, these include the Rowlandsville Granite of Harford County, Maryland, and the Carysbrook Granodiorite and portions of the Ellisville Granodiorite of central Virginia ( Smith and Skema, 2014...