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Blackwater Fault

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Journal Article

Large-magnitude transient strain accumulation on the Blackwater fault, Eastern California shear zone Available to Purchase

Michael Oskin, Alex Iriondo
Journal: Geology
Published: 01 April 2004
Geology (2004) 32 (4): 313–316.
DOI: https://doi.org/10.1130/G20223.1
...Michael Oskin; Alex Iriondo Abstract We investigate the Quaternary slip rate for the Blackwater fault, Eastern California shear zone, through mapping and geochronology of offset volcanic rocks. Basalt flows of the Black Mountains support the presence of faulting at 3.77 ± 0.11 Ma, 1.8 ± 0.1 km...
FIGURES
View PDF for article title, Large-magnitude transient strain accumulation on the <span class="search-highlight">Blackwater</span> <span class="search-highlight">fault</span>, Eastern California shear zone
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Geologic map of central segment of the Blackwater fault near Blackwater Well (mapped at 1:6000 scale, using methods outlined in Andrew et al., 2014). See Figure 1 for location. See Table 1 for detailed descriptions of geologic units. This map includes geologic mapping data of an early Miocene rhyolite center (Jenkins, 1989) north of Blackwater Well and of a late Miocene dacite lava east of Blackwater Well (Oskin and Iriondo, 2004). Thick dashed lines are projections of fault offset geologic markers; see labels and text for details.

Geologic map of central segment of the Blackwater fault near Blackwater Wel... Available to Purchase

Published: 01 July 2017
Figure 2. Geologic map of central segment of the Blackwater fault near Blackwater Well (mapped at 1:6000 scale, using methods outlined in Andrew et al., 2014 ). See Figure 1 for location. See Table 1 for detailed descriptions of geologic units. This map includes geologic mapping data
Image
An enlarged display of gravity field map in the area of Blackwater fault showing the field data locations displayed on the gridded and contoured data set. Derivation of the gravity profile from the gridded data set has the effect of reducing the effective data spacing from the original field data point spacing of 10–15 km.

An enlarged display of gravity field map in the area of Blackwater fault sh... Available to Purchase

Published: 19 February 2002
Fig. 6. An enlarged display of gravity field map in the area of Blackwater fault showing the field data locations displayed on the gridded and contoured data set. Derivation of the gravity profile from the gridded data set has the effect of reducing the effective data spacing from the original
Journal Article

Path and amount of dextral fault slip in the Eastern California shear zone across the central Mojave Desert Available to Purchase

Joseph E. Andrew, J. Douglas Walker
Journal: GSA Bulletin
Published: 01 July 2017
GSA Bulletin (2017) 129 (7-8): 855–868.
DOI: https://doi.org/10.1130/B31527.1
...Figure 2. Geologic map of central segment of the Blackwater fault near Blackwater Well (mapped at 1:6000 scale, using methods outlined in Andrew et al., 2014 ). See Figure 1 for location. See Table 1 for detailed descriptions of geologic units. This map includes geologic mapping data...
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View PDF for article title, Path and amount of dextral <span class="search-highlight">fault</span> slip in the Eastern California shear zone across the central Mojave Desert
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Journal Article

LARGE LATERAL DISPLACEMENT ON GARLOCK FAULT, CALIFORNIA, AS MEASURED FROM OFFSET FAULT SYSTEM Available to Purchase

EUGENE D MICHAEL
Journal: GSA Bulletin
Published: 01 January 1966
GSA Bulletin (1966) 77 (1): 111–114.
DOI: https://doi.org/10.1130/0016-7606(1966)77[111:LLDOGF]2.0.CO;2
... of which they are not; the Blackwater fault coincides with this line. On the northern side of the Garlock fault, a similar line lies along the base of the Piute Mountains and between Cross Mountain and Cache Peak. These two lines are named the Blackwater and Piute lines. Distance between their points...
View PDF for article title, LARGE LATERAL DISPLACEMENT ON GARLOCK <span class="search-highlight">FAULT</span>, CALIFORNIA, AS MEASURED FROM OFFSET <span class="search-highlight">FAULT</span> SYSTEM
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Figure 1. A: Index map of Pacific–North America plate boundary through southwest North America. Principal faults are shown as thick black lines. Tectonically stable areas are outlined by dotted lines. Walker Lane and Eastern California shear zone, shown as dark gray band encompassing network of active faults, together absorb 9%–23% of total plate- boundary shear (Dixon et al., 2000; Dokka and Travis, 1990a). JDF—Juan de Fuca; MTJ— Mendocino triple junction. B: Index map of Eastern California shear zone showing fault slip rates (in parentheses, mm/yr) determined by paleoseismic studies (Klinger and Piety, 2000; Lee et al., 2001; McGill and Sieh, 1993; Rockwell et al., 2000; Zhang et al., 1990). Heavy dark gray lines outline historic earthquake ruptures (Beanland and Clark, 1994; Sieh et al., 1993; Treiman et al., 2002). Heavy, medium gray band highlights Blackwater– Calico fault system. Light gray band surrounding Blackwater fault and passing north of Garlock fault is zone of localized 1.2 ± 0.5 mm/yr strain accumulation documented by radar interferometry (Peltzer et al., 2001). C: Neotectonic map of Blackwater fault, showing type and orientation of fault line scarps with ticks on downthrown side. Dark patterned areas are lava flows cut by Blackwater fault (Dibblee, 1968, 1967; Smith, 1964).

Figure 1. A: Index map of Pacific–North America plate boundary through sout... Available to Purchase

Published: 01 April 2004
fault system. Light gray band surrounding Blackwater fault and passing north of Garlock fault is zone of localized 1.2 ± 0.5 mm/yr strain accumulation documented by radar interferometry ( Peltzer et al., 2001 ). C: Neotectonic map of Blackwater fault, showing type and orientation of fault line scarps
Journal Article

Evolution of the central Garlock fault zone, California: A major sinistral fault embedded in a dextral plate margin Available to Purchase

Joseph E. Andrew, J. Douglas Walker, Francis C. Monastero
Journal: GSA Bulletin
Published: 01 January 2015
GSA Bulletin (2015) 127 (1-2): 227–249.
DOI: https://doi.org/10.1130/B31027.1
... and development of the Garlock. The LMSR is also located at the intersection of the NNW-striking dextral Blackwater fault and contains several sinistral WSW-striking structures that provide a framework for establishing the relationship between the sinistral Garlock fault system and the dextral Eastern California...
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View PDF for article title, Evolution of the central Garlock <span class="search-highlight">fault</span> zone, California: A major sinistral <span class="search-highlight">fault</span> embedded in a dextral plate margin
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Figure 2. Geologic maps of (A) Black Hills and (B) Black Mountains basalt field where dextrally offset by Blackwater fault. Matching lines of circles (A) and squares (B) mark offset features.

Figure 2. Geologic maps of (A) Black Hills and (B) Black Mountains basalt f... Available to Purchase

Published: 01 April 2004
Figure 2. Geologic maps of (A) Black Hills and (B) Black Mountains basalt field where dextrally offset by Blackwater fault. Matching lines of circles (A) and squares (B) mark offset features.
Image
Simplified geologic map of the Lava Mountains–Summit Range. Data from inside the dashed line are from Andrew et al. (2014); additional data are from Dibblee (1967), Carr et al. (1997), and Walker et al. (2002). Geochronologic sample locations are denoted by stars with sample name and interpreted age in parentheses. Faults are thick lines. Fault abbreviations: NBF—northern Blackwater fault; RWFZ—Randsburg Wash fault zone; TWF—Teagle Wash fault. Younger Pleistocene and Holocene units are shown as white.

Simplified geologic map of the Lava Mountains–Summit Range. Data from insid... Available to Purchase

Published: 01 January 2015
name and interpreted age in parentheses. Faults are thick lines. Fault abbreviations: NBF—northern Blackwater fault; RWFZ—Randsburg Wash fault zone; TWF—Teagle Wash fault. Younger Pleistocene and Holocene units are shown as white.
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Example Sentinel‐1 Interferometric Synthetic Aperture Radar (InSAR) (a) data, (b) model, and (c,d) data‐model residuals. Panel (d) shows residuals in wrapped form. InSAR track and dates are shown in the upper‐left panel. Red triangles show the Pleistocene volcanoes in this region. Bold black lines show the 2019 rupture sequence and the Garlock fault. BF, Blackwater fault; GF, Garlock fault; HLF: Harper Lake fault; HMF: Hunter Mountain‐Saline Valley fault zone; LF, Lockhart fault; SNF, Sierra Nevada frontal fault. The color version of this figure is available only in the electronic edition.

Example Sentinel‐1 Interferometric Synthetic Aperture Radar (InSAR) (a) dat... Available to Purchase

Published: 02 June 2020
black lines show the 2019 rupture sequence and the Garlock fault. BF, Blackwater fault; GF, Garlock fault; HLF: Harper Lake fault; HMF: Hunter Mountain‐Saline Valley fault zone; LF, Lockhart fault; SNF, Sierra Nevada frontal fault. The color version of this figure is available only in the electronic
Image
Map showing the faults of the Eastern California shear zone in the Mojave Desert. The Calico fault is highlighted in white, gray star indicates the location of the trench sites, and the gray quadrangle shows our geomorphic survey area. ALF—Airport Lake fault, B—Barstow, BF—Blackwater fault, BLF—Bicycle Lake fault, CF—Calico fault, CLF—Coyote Lake fault, CRF—Camp Rock fault, FIF—Fort Irwin fault, GF—Garlock fault, GLF—Goldstone Lake fault, HF—Helendale fault, HLF—Harper Lake fault, LF—Lenwood fault, LoF—Lockhart fault, MF—Manix fault, PF—Pisgah fault, PVF—Panamint Valley fault, SAF—San Andreas fault, SDVF—southern Death Valley fault, TF—Tiefort Mountain fault.

Map showing the faults of the Eastern California shear zone in the Mojave D... Open Access

Published: 01 August 2010
Figure 1. Map showing the faults of the Eastern California shear zone in the Mojave Desert. The Calico fault is highlighted in white, gray star indicates the location of the trench sites, and the gray quadrangle shows our geomorphic survey area. ALF—Airport Lake fault, B—Barstow, BF—Blackwater
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Simplified geologic map of the central and eastern Garlock fault (California, USA). Inset map shows the Garlock fault (thickest line), Figure 1 area (red line), geologic provinces, other features, and the border between California (CA) and Nevada (NV). Previously published total offset constraints for the Garlock fault are shown in bold text (see Table 1 for abbreviations and descriptions). Fault abbreviations: BF—Blackwater fault; WGF—western Garlock fault; BM—Black Mountain; DSF—Dove Spring Formation; ECDS—Eagle Crags dike swarm; MDS—megacrystic dike swarm; and SESD—Southeast Sierra dikes. Geology modified from Walker et al. (2002). Holocene and upper Pleistocene units are shown as white.

Simplified geologic map of the central and eastern Garlock fault (Californi... Available to Purchase

Published: 01 January 2015
offset constraints for the Garlock fault are shown in bold text (see Table 1 for abbreviations and descriptions). Fault abbreviations: BF—Blackwater fault; WGF—western Garlock fault; BM—Black Mountain; DSF—Dove Spring Formation; ECDS—Eagle Crags dike swarm; MDS—megacrystic dike swarm; and SESD
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Overview of active faults and regional topography of the Eastern California shear zone (ECSZ) and southern Walker Lane belt. Labeled faults are abbreviated as follows: ALF—Airport Lake fault, BF—Blackwater fault, GF—Garlock fault, KCF—Kern Canyon fault, LLF—Little Lake fault, OVF—Owens Valley fault, SNFF—Sierra Nevada frontal fault. OL—Owens Lake, IWV—Indian Wells Valley. Major historical earthquake surface ruptures in the Eastern California shear zone and Walker Lane belt are outlined in white, with stars denoting epicentral locations: OV—1872 Owens Valley, L—Landers 1992, HM—1999 Hector Mine. Active fault traces are taken from the U.S. Geological Survey Quaternary fault and fold database, with the exception of the Kern Canyon fault, taken from Brossy et al. (2012).

Overview of active faults and regional topography of the Eastern California... Available to Purchase

Published: 01 July 2013
Figure 1. Overview of active faults and regional topography of the Eastern California shear zone (ECSZ) and southern Walker Lane belt. Labeled faults are abbreviated as follows: ALF—Airport Lake fault, BF—Blackwater fault, GF—Garlock fault, KCF—Kern Canyon fault, LLF—Little Lake fault, OVF—Owens
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Summary of timing constraints for the Lava Mountains–Summit Range (LMSR) area. Faults, rock units, and folds are arranged from east to west relative to the Blackwater fault. Box outlines denote the maximum and minimum timing constraints for rock units and deformation. Pattern fills indicate the interpreted timing of each feature based on the three-stage deformation history model of the Garlock fault zone. The slip amount interpreted for each fault in each stage is given. Slip amounts are negative for dextral slip, and amounts with asterisks are calculated from other slip constraints. The vertical gray bars denote key times in the history. The 9.1 km for the Garlock fault between 4 and 2 Ma is derived by subtracting the total slip of the Summit Range segment of the Garlock fault and subtracting the 7–3.8 Ma and 2–0 Ma slip values (19.1 km and 15.5 km, respectively) for the same fault.

Summary of timing constraints for the Lava Mountains–Summit Range (LMSR) ar... Available to Purchase

Published: 01 January 2015
Figure 12. Summary of timing constraints for the Lava Mountains–Summit Range (LMSR) area. Faults, rock units, and folds are arranged from east to west relative to the Blackwater fault. Box outlines denote the maximum and minimum timing constraints for rock units and deformation. Pattern fills
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Index map of the Eastern California Shear Zone (ecsz). Black lines show faults, from Jennings (1994). Hector Mine and Landers ruptures are shown as thicker, dark gray lines. Focal mechanisms from Dreger and Kaverina (2000) and Hauksson et al. (1993). Fault abbreviations: BF, Bullion fault; BWF, Blackwater fault; CF, Calico fault; CLF, Coyote Lake fault; CMF, Copper Mountain fault; CRF, Camp Rock fault; EF, Emerson fault; HF, Harper fault; HDF, Helendale fault; HLF, Harper Lake fault; HVF, Homestead Valley fault; JVF, Johnson Valley fault; LF, Ludlow fault; LHF, Lockhart fault; LLF, Lavic Lake fault; LWF, Lenwood fault; MF, Manix fault; MLF, Mesquite Lake fault; MVF, Mirage Valley fault; PF, Pisgah fault; PMF, Pinto Mountain fault; RF, Rodman fault; WCF, West Calico fault.

Index map of the Eastern California Shear Zone ( ecsz ). Black lines show f... Available to Purchase

Published: 01 May 2002
, Bullion fault; BWF, Blackwater fault; CF, Calico fault; CLF, Coyote Lake fault; CMF, Copper Mountain fault; CRF, Camp Rock fault; EF, Emerson fault; HF, Harper fault; HDF, Helendale fault; HLF, Harper Lake fault; HVF, Homestead Valley fault; JVF, Johnson Valley fault; LF, Ludlow fault; LHF, Lockhart fault
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Photographs of faults in the Lava Mountains–Summit Range. Note the dot-in-circle and cross-in-circle symbols that represent motion out of and into the plane of view, respectively. (A) View of the Teagle Wash fault looking upward 30° from horizontal toward the southwest. This view is oblique to the fault striae. The fault juxtaposes Atolia Quartz Monzonite over Bedrock Spring Formation via left-lateral slip on a low- to moderate-angle fault (dipping away in this view). (B) Horizontal-looking view toward the south of the traces of two splays of the Savoy fault. Each splay has a few centimeters of gouge creating a horse of the Bedrock Springs Formation that is sheared and deformed in a left-lateral sense. (C) Detailed oblique view of the Savoy fault looking southwestward, at an angle to the strike. The kinematic indicators show normal oblique left-lateral slip. (D) Along-strike, northeast-looking, cross-sectional view of the Brown’s Ranch fault zone cutting volcanic debris-flow deposits of dacite and arkosic sandstone of the Bedrock Spring Formation. Note the associated syncline. (E) Detailed view of the northern Blackwater fault, looking toward the southeast, with kinematic indicators showing a normal component of oblique slip.

Photographs of faults in the Lava Mountains–Summit Range. Note the dot-in-c... Available to Purchase

Published: 01 January 2015
, northeast-looking, cross-sectional view of the Brown’s Ranch fault zone cutting volcanic debris-flow deposits of dacite and arkosic sandstone of the Bedrock Spring Formation. Note the associated syncline. (E) Detailed view of the northern Blackwater fault, looking toward the southeast, with kinematic
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Shaded-relief topography and Quaternary fault map (Quaternary fault and fold database for the United States, U.S. Geological Survey and California Geological Survey, 2006) of southern California. Inset map of California with rectangular box locates image. Arrows indicate sense of strike-slip motion. White star shows location of offset late Holocene alluvial fan deposit (this study). White circles show locations of existing Garlock fault (GF) slip-rate and paleoseismic studies: CW—Clark Wash (McGill et al., 2009); IC—Iron Canyon (McGill and Rockwell, 1998 and Dawson et al., 2003); SmR—Summit Range (Ganev et al., 2012); SSV—Southeast Searles Valley (McGill and Sieh, 1993). Heavy dashed line locates the western margin of the Eastern California shear zone. BF—Blackwater fault; CF—Calico fault; DVFS—Death Valley fault system; EP—El Paso Mountains; HF—Helendale fault; KL—Koehn Lake; LeF—Lenwood fault; LoF—Lockhart fault; OLF—Owl Lake fault; OVFS—Owens Valley fault system; PKV—Pilot Knob Valley; PVFS—Panamint Valley fault system; SBM—San Bernardino Mountains; SGM—San Gabriel Mountains; SR—Slate Range; SVF—Searles Valley fault.

Shaded-relief topography and Quaternary fault map (Quaternary fault and fol... Open Access

Published: 01 February 2014
., 2003 ); SmR—Summit Range ( Ganev et al., 2012 ); SSV—Southeast Searles Valley ( McGill and Sieh, 1993 ). Heavy dashed line locates the western margin of the Eastern California shear zone. BF—Blackwater fault; CF—Calico fault; DVFS—Death Valley fault system; EP—El Paso Mountains; HF—Helendale fault; KL
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Figure 3. A: Calculated coseismic Coulomb stress changes caused by fault slip associated with 1992 Joshua Tree (JT), Landers (L), and Big Bear (BB) earthquakes (green lines). Other faults: MS—Mojave segment, SBMS—San Bernardino Mountain segment, and CVS—Coachella Valley segment of San Andreas fault; SJF—San Jacinto fault, EF—Elsinore fault, CF—Calico fault, LF—Lenwood fault, and BWF—Blackwater fault. Location of future 1999 Hector Mine earthquake (green dashed line) is also shown. B: Same as A but stresses are shown for top surface and cut plane (front) along San Andreas fault. Brittle-ductile transition (b-d trans) and Moho depths are shown in cut plane. Stars in B show locations within San Bernardino Mountain and Coachella Valley segments, respectively, where stresses are sampled for Figure 4. C, E: Same as A but with addition of stresses associated with 1999 Hector Mine earthquake and postseismic relaxation for years 2001 and 2020, respectively. D, F: Same as C, E, respectively, but stresses are shown for top surface and cut plane (front) along San Andreas fault. Receiver faults for Coulomb stress calculations shown are assumed to strike N60°W with apparent friction coefficient μ′ = 0.2.

Figure 3. A: Calculated coseismic Coulomb stress changes caused by fault sl... Available to Purchase

Published: 01 June 2002
; SJF—San Jacinto fault, EF—Elsinore fault, CF—Calico fault, LF—Lenwood fault, and BWF—Blackwater fault. Location of future 1999 Hector Mine earthquake (green dashed line) is also shown. B: Same as A but stresses are shown for top surface and cut plane (front) along San Andreas fault. Brittle-ductile
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(A) Map of major Quaternary faults in the southern Walker Lane belt (WLB) along the southeastern margin of the Sierra Nevada microplate and Eastern California shear zone (ECSZ) in eastern California (modified after USGS, 2016). Faults shown in black are historical ruptures between A.D. 1872 and 2019. Faults and fault zones: AHF—Ash Hill fault; ALF—Airport Lake fault; BF—Blackwater fault; DVF—Death Valley fault; FCFZ—Furnace Creek fault zone; FLVFZ—Fish Lake Valley fault zone; GF—Garlock fault; HCF—Hilton Creek fault; LLFZ—Little Lake fault zone; OVF—Owens Valley fault; PVF—Panamint Valley fault; RVF—Round Valley fault; SNFF—Sierra Nevada frontal fault; SIMF—southern Inyo Mountains fault; SLF—Silver Lake fault; SVF—Searles Valley fault; SV-HMFZ—Saline Valley–Hunter Mountain fault zone; WMF—White Mountains fault. Volcanic features: CVF—Coso volcanic field; LVC—Long Valley Caldera; VT—Volcanic tableland. (B) Map of primary faults and rocks of the Big Pine volcanic field in south-central Owens Valley. The A.D. 1872 Owens Valley fault rupture and fault segments of the OVF and SNFF are shown (modified from Bacon and Pezzopane, 2007). Faults: CFF—Centennial Flat fault; KF—Keeler fault; ORF—Owens River fault; SFF—Sage Flat fault. Numbers show sites on OVF referred to in text of: 1—Kirby et al. (2008); 2—Lee et al. (2001); and 3—Bacon and Pezzopane (2007).

(A) Map of major Quaternary faults in the southern Walker Lane belt (WLB) a... Available to Purchase

Published: 13 December 2020
. 1872 and 2019. Faults and fault zones: AHF—Ash Hill fault; ALF—Airport Lake fault; BF—Blackwater fault; DVF—Death Valley fault; FCFZ—Furnace Creek fault zone; FLVFZ—Fish Lake Valley fault zone; GF—Garlock fault; HCF—Hilton Creek fault; LLFZ—Little Lake fault zone; OVF—Owens Valley fault; PVF—Panamint
Journal Article

Aftershocks from the 28 June 1992 Landers earthquake: Northern Mojave desert to the Coso Volcanic Field, California Available to Purchase

G. R. Roquemore, G. W. Simila
Published: 01 June 1994
Bulletin of the Seismological Society of America (1994) 84 (3): 854–862.
DOI: https://doi.org/10.1785/BSSA0840030854
.... In this article we investigate primary aftershocks on the Calico-Blackwater and Harper fault zones, and triggered aftershocks in Indian Wells Valley (Little Lake fault zone) and the Coso Volcanic Field. These areas are directly northwest of the Landers rupture terminus and fall within the Southern Owens Valley...
View PDF for article title, Aftershocks from the 28 June 1992 Landers earthquake: Northern Mojave desert to the Coso Volcanic Field, California
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