Geologic map of the St. Joe quadrangle, Searcy and Marion Counties, Arkansas

Turner, Kenzie J.; Hudson, Mark R.

doi:10.3133/sim3074

Cited by 5 publications

(19 citation statements)

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“…The Mill Creek graben is part of a graben system that extends 15 miles to the west, where it is labeled the Braden Mountain graben (Hudson et. al, 2006;Hudson and Turner, 2009). Vertical joints are abundant in the study area, and the dominant set strikes north (Hudson and Turner, 2009).…”

Section: Millmentioning

confidence: 90%

“…al, 2006;Hudson and Turner, 2009). Vertical joints are abundant in the study area, and the dominant set strikes north (Hudson and Turner, 2009). Joints that occur in the carbonate rocks are typically enlarged by dissolution and create preferred pathways for groundwater flow.…”

Section: Millmentioning

confidence: 96%

“…Relevant mapping has recently been completed for the St. Joe area by Hudson and Turner, (2009) and the Pindall area ( Fig. 4 by Hudson et al, 2006).…”

Section: Geologymentioning

confidence: 99%

“…Creek fault, Mill Creek Graben, and the St. Joe Monocline (Hudson and Turner, 2009; McKnight, 1935) ( (Hudson and Turner, 2009) Within the study area, the St. Joe fault is an east-west trending normal fault that extends for 15 miles. The down-dropped block of the St. Joe fault is to the south, with a vertical displacement of 500 feet ( Fig.…”

Section: Millmentioning

confidence: 99%

“…Ordovician-age strata comprise the Everton, St. Peter, Plattin, and Fernvale Formations Figure 8: Stratigraphic section of the study area (Hudson andTurner, 2009) (McKnight, 1935;Caplan, 1957). The Boone, Batesville, Fayetteville, and Pitkin Formations constitute the Mississippian-age strata, and the Bloyd and Hale Formations make up the Pennsylvanian age strata (Hudson and Turner, 2009). Quaternary-age strata are characterized by alluvium and terrace deposits consisting of unconsolidated clay, silt, sand and gravel (Hudson and Turner, 2009).…”

Section: Stratigraphymentioning

confidence: 99%

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Margaret White Springs Recharge Study, Buffalo National River, North-Central Arkansas, Usa

Leonard¹

2018

Geological Society of America Abstracts With Programs

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Section: Millmentioning

confidence: 90%

Section: Millmentioning

confidence: 96%

“…Relevant mapping has recently been completed for the St. Joe area by Hudson and Turner, (2009) and the Pindall area ( Fig. 4 by Hudson et al, 2006).…”

Section: Geologymentioning

confidence: 99%

Section: Millmentioning

confidence: 99%

Section: Stratigraphymentioning

confidence: 99%

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Margaret White Springs Recharge Study, Buffalo National River, North-Central Arkansas, Usa

Leonard¹

2018

Geological Society of America Abstracts With Programs

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The effect of lithology on valley width, terrace distribution, and bedload provenance in a tectonically stable catchment with flat‐lying stratigraphy

Keen‐Zebert

Hudson

Shepherd

et al. 2017

Earth Surf Processes Landf

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How rock resistance or erodibility affects fluvial landforms and processes is an outstanding question in geomorphology that has recently garnered attention owing to the recognition that the erosion rates of bedrock channels largely set the pace of landscape evolution. In this work, we evaluate valley width, terrace distribution, and bedload provenance in terms of reach scale variation in lithology in the study reach and discuss the implications for landscape evolution in a catchment with relatively flat‐lying stratigraphy and very little uplift. A reach of the Buffalo National River in Arkansas was partitioned into lithologic reaches and the mechanical and chemical resistance of the main lithologies making up the catchment was measured. Valley width and the spatial distribution of terraces were compared among the different lithologic reaches. The surface grain size and provenance of coarse (2–90 mm) sediment of both modern gravel bars and older terrace deposits that make up the former bedload were measured and defined. The results demonstrate a strong impact of lithology upon valley width, terrace distribution, and bedload provenance and therefore, upon landscape evolution processes. Channel down‐cutting through different lithologies creates variable patterns of resistance across catchments and continents. Particularly in post‐tectonic and non‐tectonic landscapes, the variation in resistance that arises from the exhumation of different rocks in channel longitudinal profiles can impact local base levels, initiating responses that can be propagated through channel networks. The rate at which that response is transmitted through channels is potentially amplified and/or mitigated by differences between the resistance of channel beds and bedload sediment loads. In the study reach, variation in lithologic resistance influences the prevalence of lateral and vertical processes, thus producing a spatial pattern of terraces that reflects rock type rather than climate, regional base level change, or hydrologic variability. Copyright © 2017 John Wiley & Sons, Ltd.

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Late Paleozoic Flexural Extension and Overprinting Shortening in the Southern Ozark Dome, Arkansas, USA: Evolving Fault Kinematics in the Foreland of the Ouachita Orogen

Hudson

Turner

2022

Tectonics

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Faults and folds on the southern flank of the Ozark dome in northern Arkansas, USA, record flexural extension in a foreland area followed by shortening in response to the late Paleozoic Ouachita orogeny. Map‐scale structures and an analysis of fault‐slip data collected systematically during geologic mapping demonstrate that most deformation in the area accommodated north‐south extension as the southern margin of Laurentia was flexed beneath the thrust load of the Ouachita belt, probably during Middle Pennsylvanian. Extension was concentrated in northeast‐ and west‐northwest‐trending structural zones having sets of discontinuous, often en echelon normal and strike‐slip faults and associated monoclinal folds. Reactivation of basement weaknesses that underlie these zones is indicated by their close match to oblique‐rift models in which both the proportions of normal and strike‐slip faulting and the internal extension directions vary with orientation of the zones. Subsequent propagation of north‐south Ouachita shortening into the foreland formed small‐offset strike‐slip and sparse reverse faults that overprinted older extensional structures. Strike‐slip faults were concentrated in reactivated northeast‐trending structural zones. In two areas, reverse faults and local anticlines were developed in the footwalls of older normal faults, both near intersections of northeast‐ and west‐northwest‐trending structural zones. These are interpreted as areas of incipient inversion due to compressional stress concentrations at fault‐block corners. Spatial overlap of areas of north‐south shortening and fluid flux marked by silicification or lead‐zinc mineralization indicates that regional fluid flow of brines was coeval with and may have enhanced inversion during Late Pennsylvanian to early Permian.

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Geologic map of the St. Joe quadrangle, Searcy and Marion Counties, Arkansas

Cited by 5 publications

References 0 publications

Margaret White Springs Recharge Study, Buffalo National River, North-Central Arkansas, Usa

Margaret White Springs Recharge Study, Buffalo National River, North-Central Arkansas, Usa

The effect of lithology on valley width, terrace distribution, and bedload provenance in a tectonically stable catchment with flat‐lying stratigraphy

Late Paleozoic Flexural Extension and Overprinting Shortening in the Southern Ozark Dome, Arkansas, USA: Evolving Fault Kinematics in the Foreland of the Ouachita Orogen

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