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Stafford fault system: Structures documenting Cretaceous and Tertiary deformation along the Fall Line in northeastern Virginia

1977; Geological Society of America; Volume: 5; Issue: 7 Linguagem: Inglês

10.1130/0091-7613(1977)5 2.0.co;2

1943-2682

Robert B. Mixon, Wayne L. Newell,

Geological and Geochemical Analysis

Research Article| July 01, 1977 Stafford fault system: Structures documenting Cretaceous and Tertiary deformation along the Fall Line in northeastern Virginia Robert B. Mixon; Robert B. Mixon 1U.S. Geological Survey, Reston, Virginia 22092 Search for other works by this author on: GSW Google Scholar Wayne L. Newell Wayne L. Newell 1U.S. Geological Survey, Reston, Virginia 22092 Search for other works by this author on: GSW Google Scholar Author and Article Information Robert B. Mixon 1U.S. Geological Survey, Reston, Virginia 22092 Wayne L. Newell 1U.S. Geological Survey, Reston, Virginia 22092 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1977) 5 (7): 437–440. https://doi.org/10.1130/0091-7613(1977)5 2.0.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Robert B. Mixon, Wayne L. Newell; Stafford fault system: Structures documenting Cretaceous and Tertiary deformation along the Fall Line in northeastern Virginia. Geology 1977;; 5 (7): 437–440. doi: https://doi.org/10.1130/0091-7613(1977)5 2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Four en echelon northeast-trending structures, including southeast-dipping monoclines and northwest-dipping, high-angle reverse faults, have been mapped along the inner edge of the Coastal Plain in northeastern Virginia–an area generally considered to be undeformed. Although displacements are small (15 to 60 m), the structures markedly affect the present distribution and thickness of Coastal Plain sediments.Structure-contour maps on Cretaceous and Paleocene lithostratigraphic units show that the amount of displacement on the structures increases downward, indicating recurrent movement. The major deformation took place in the Cretaceous and the middle(?) Tertiary, but some latest Tertiary or Quaternary movement is possible.The structures, herein named the Stafford fault system, extend for at least 56 km parallel to the Fall Line and the northeast-trending reach of the Potomac estuary. This relationship supports the hypothesis that the Fall Line and major river deflections along it have been tectonically influenced. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.