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Title: Seismic Imaging of a Shale Landscape Under Compression Shows Limited Influence of Topography–Induced Fracturing

Journal Article · · Geophysical Research Letters
 [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [2];  [2]; ORCiD logo [2];  [4]; ORCiD logo [5]; ORCiD logo [2]; ORCiD logo [6]; ORCiD logo [2]
  1. Pennsylvania State Univ., University Park, PA (United States); Penn State
  2. Pennsylvania State Univ., University Park, PA (United States)
  3. Univ. of California, Los Angeles, CA (United States)
  4. Hobart and William Smith Colleges, Geneva, NY (United States)
  5. Broward County, Fort Lauderdale, FL (United States)
  6. Univ. of Wyoming, Laramie, WY (United States)
+ Show Author Affiliations

We used seismic refraction to image the P-wave velocity structure of a shale watershed experiencing regional compression in the Valley and Ridge Province (USA). From estimates showing strong compressional stress, we expected the depth to unweathered bedrock to mirror the hill-valley-hill topography (“bowtie pattern”) by analogy to seismic velocity patterns in crystalline bedrock in the North American Piedmont that also experience compression. Previous researchers used failure potentials calculated for strong compression in the Piedmont to suggest fractures are open deeper under hills than valleys to explain the “bowtie” pattern. Seismic images of the shale watershed, however, show little evidence of such a “bowtie.” Instead, they are consistent with weak (not strong) compression. Here, this contradiction could be explained by the greater importance of infiltration-driven weathering than fracturing in determining seismic velocities in shale compared to crystalline bedrock, or to local perturbations of the regional stress field due to lithology or structures.

Research Organization:
Pennsylvania State Univ., University Park, PA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
FG02-05ER15675
OSTI ID:
1864537
Journal Information:
Geophysical Research Letters, Journal Name: Geophysical Research Letters Journal Issue: 17 Vol. 48; ISSN 0094-8276
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English

References (29)

Multiscale geophysical imaging of the critical zone: Geophysical Imaging of the Critical Zone journal January 2015
A model of three-dimensional topographic stresses with implications for bedrock fractures, surface processes, and landscape evolution: Three-Dimensional Topographic Stress journal April 2017
Geophysical constraints on deep weathering and water storage potential in the Southern Sierra Critical Zone Observatory: GEOPHYSICAL CONSTRAINTS ON WEATHERING IN THE SOUTHERN SIERRA CZO journal January 2014
Topographic stress and rock fracture: a two-dimensional numerical model for arbitrary topography and preliminary comparison with borehole observations: TOPOGRAPHIC STRESS AND ROCK FRACTURE journal September 2014
Controls on deep critical zone architecture: a historical review and four testable hypotheses: Four Testable Hypotheses about the Deep Critical Zone journal November 2016
Regolith production and transport at the Susquehanna Shale Hills Critical Zone Observatory, Part 2: Insights from meteoric 10 Be : METEORIC journal September 2013
Theoretical Displacements and Stresses near Fractures in Rock: with Applications to Faults, Joints, Veins, Dikes, and Solution Surfaces book January 1987
Deglaciation Seismotectonics: a principal influence on intraplate seismogenesis at high latitudes journal October 2000
Glacio-seismotectonics: ice sheets, crustal deformation and seismicity journal October 2000
Perennial flow through convergent hillslopes explains chemodynamic solute behavior in a shale headwater catchment journal August 2018
Climate preconditions the Critical Zone: Elucidating the role of subsurface fractures in the evolution of asymmetric topography journal May 2019
Chemical reactions, porosity, and microfracturing in shale during weathering: The effect of erosion rate journal January 2020
Role of Large‐Scale Tectonic Forces in Intraplate Earthquakes of Central and Eastern North America journal April 2019
Present‐Day Stress Field Influences Bedrock Fracture Openness Deep Into the Subsurface journal November 2020
Seismic Ambient Noise Analyses Reveal Changing Temperature and Water Signals to 10s of Meters Depth in the Critical Zone journal February 2021
Stress field constraints on intraplate seismicity in eastern North America journal January 1992
Topographic perturbations of regional stresses and consequent bedrock fracturing journal November 1996
Three-dimensional seismic refraction tomography: A comparison of two methods applied to data from the Faeroe Basin journal April 1998
Is there a genetic relationship between selected regional joints and contemporary stress within the lithosphere of North America? journal April 1982
Induced Stresses and Fault Potential In Eastern Canada Due to A Disc Load: A Preliminary Analysis journal May 1996
Geophysical imaging reveals topographic stress control of bedrock weathering journal October 2015
Deep abiotic weathering of pyrite journal October 2020
Jointing in the Appalachian Plateau of Pennsylvania journal January 1967
State of stress in central and eastern North American seismic zones journal April 2010
Finite‐difference calculation of traveltimes in three dimensions journal May 1990
3D seismic refraction traveltime tomography at a groundwater contamination site journal September 2006
Susquehanna Shale Hills Critical Zone Observatory: Shale Hills in the Context of Shaver's Creek Watershed journal January 2018
Oxidative dissolution under the channel leads geomorphological evolution at the Shale Hills catchment journal December 2016
Shale Hills Critical Zone Observatory 3D Seismic Experiment dataset January 2018

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58 GEOSCIENCES
fracturing
groundwater
headwater catchment
shale
topography
weathering