Evidence of uplift near Charleston, South Carolina

Rhea, Susan

doi:10.1130/0091-7613(1989)017<0311:eouncs>2.3.co;2

Cited by 29 publications

(18 citation statements)

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“…The effects of tectonic movements on rivers have been discussed mainly with regard to longitudinal profiles and particularly as the cause of longitudinal profile banomaliesQ (e.g., Burnett and Schumm, 1983;Seeber and Gornitz, 1983;Keller and Rockwell, 1984;Rockwell et al, 1984;Ouchi, 1985;Bull and Knuepfer, 1987;McKeown et al, 1988;Wells et al, 1988;Merritts and Vincent, 1989;Rhea, 1989;Willemin and Knuepfer, 1994;Zuchiewicz, 1995;Burbank et al, 1996;Benito et al, 1998;Demoulin, 1998;Harbor, 1998). These tectonic movements that produce local convexity or concavity in longitudinal profiles are usually vertical-uplift, subsidence, or tilting.…”

Section: Deformation and Adjustment Of Longitudinal Profilesmentioning

confidence: 98%

Development of offset channels across the San Andreas fault

Ouchi¹

2005

Geomorphology

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Section: Deformation and Adjustment Of Longitudinal Profilesmentioning

confidence: 98%

Development of offset channels across the San Andreas fault

Ouchi¹

2005

Geomorphology

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“…It shows two zones of relatively higher elevation (as much as 15m [45 ft] higher than the surrounding Coastal Plain), one north of the Ashley River that was originally recognized by Rhea (1989) and trends northeastward and the other about 25 km to the southwest, near Adams Run. The region between these high grounds was covered by swamps and cut by tributaries of the Stono River.…”

Section: Surface Featuresmentioning

confidence: 99%

“…Using surface elevation data and the convex upward pattern of several river courses, Rhea (1989) discovered a ~400 km 2 uplift in the Summerville area, roughly north of 33.05° N and between 80.05° and 80.45° W. Figure 2 shows the digital elevation model (DEM) for the study area extracted from the Statewide DEM data for South Carolina developed by ▲ Figure 1. Instrumentally located seismicity in the Middleton Place-Summerville seismic zone (MPSSZ), gray dots, for the period 1974-2004 (quality A and B), superposed on the seismotectonic framework, and Sloan's isoseismals of the 1886 earthquake (Dutton 1890).…”

Section: Surface Featuresmentioning

confidence: 99%

Finding Faults in the Charleston Area, South Carolina: 2. Complementary Data

Talwani¹,

Durá‐Gómez²

2009

Seismological Research Letters

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The seismotectonic framework associated with the Middleton Place-Summerville seismic zone (MPSSZ) inferred from seismicity data consists of the ~50-km-long, ~N30°E-striking, NW-dipping, Woodstock fault associated with right-lateral oblique strike-slip motion, with a ~6-km-long antidilatational left step near Middleton Place, dividing it into the Woodstock north and south faults. Three ~NW-SE striking reverse faults, two NE dipping and one SW dipping, were recognized within this step. The Woodstock (N) fault lies along the southeast boundary of a buried Triassic basin, and the current seismicity is due to its reactivation. A comparison of this seismotectonic framework using a Geographic Information System shows that it is consistent with available geomorphological, geodetic, shallow stratigraphic (<150 m), seismic reflection and refraction, and potential field data, some of which were used in Durá-Gómez and Talwani (2009) to develop it. It further suggests that ongoing tectonic activity on the faults comprising this framework has resulted in breaking the overlying basalt along the Woodstock fault and in warping of the overlying sediments. Continuous vertical movements along the NW-SE stepover faults has resulted in uplift on the NE and SW bounding faults with the formation of the Mount Holly and Fort Bull domes. We found that these interpretations of complex faulting on multiple faults in the MPSSZ agreed with and explained the observed macroscopic data gathered after the 1886 Charleston earthquake.

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“…Thus, the specific longitudinal profile anomalies (knickpoints or knickzones) can be investigated to evaluate tectonic perturbation at different scales ranging from large scale to local structures (Seeber and Gornitz, 1983;Molin et al, 2004). Moreover, several studies in active orogens use small-scale profile convexities, knickpoints to mark out the current fault movements (Rhea, 1989;Gomez et al, 1996;Miller et al, 2012;Morell et al, 2012;Olivetti et al, 2012;Schildgen et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…These fluctuations may be recognized by evaluating the longitudinal profiles of the rivers flowing over tectonically active landscapes (Hack, 1957(Hack, , 1973Burnett and Schumm, 1983;Seeber and Gornitz, 1983;Ouchi, 1985;Merritts and Vincent, 1989;Rhea, 1989;Gomez et al, 1996;Demoulin, 1998;Holbrook and Schumm, 1999;Avouac, 2000, 2001;Marple and Talwani, 2000;Kirby and Whipple, 2001).…”

Section: Introductionmentioning

confidence: 99%