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1-20 OF 82 RESULTS FOR
Watchorn Fault
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Image
(a) The station locations in Oklahoma, with the station locations before th...
Published: 03 May 2017
in black with faults that were previously mapped in black as well. The Sooner Lake fault (SLF), Watchorn fault (WF), and the Labette fault (LF) are labeled. The alternating dot and dash box represents the area shown in Figure 2 .The color version of this figure is available only in the electronic edition.
Image
Relocated seismicity from 3 September to 6 October 2016. (a) Inset map of t...
in Testing Earthquake Nucleation Length Scale with Pawnee Aftershocks
> Seismological Research Letters
Published: 14 April 2022
Figure 1. Relocated seismicity from 3 September to 6 October 2016. (a) Inset map of the location of the study area within Oklahoma. Gray dots describe the relocated seismicity, orange dashed lines denote the three fault traces. LF, Labette fault; SLF, Sooner Lake fault; and WF, Watchorn fault
Journal Article
Coulomb Stress Interactions during the M w 5.8 Pawnee Sequence
Journal: Seismological Research Letters
Publisher: Seismological Society of America
Published: 03 May 2017
Seismological Research Letters (2017) 88 (4): 1024–1031.
... in black with faults that were previously mapped in black as well. The Sooner Lake fault (SLF), Watchorn fault (WF), and the Labette fault (LF) are labeled. The alternating dot and dash box represents the area shown in Figure 2 .The color version of this figure is available only in the electronic edition. ...
Includes: Supplemental Content
Image
Map showing Oklahoma geologic provinces and inset of study area. Within the...
in Influence of structure on Mississippian paleotopography and distribution of Middle Pennsylvanian sandstone reservoirs on the Cherokee platform, northern Oklahoma
> AAPG Bulletin
Published: 01 December 2021
Figure 1. Map showing Oklahoma geologic provinces and inset of study area. Within the study area, black lines represent major named faults ( Chen et al., 2017 ) and green polygons represent major oil and gas fields ( Boyd, 2002 ). Oil and gas fields are labeled as A: Watchorn, B: Watchorn North
Image
Geology of the Kambalda area redrawn by S. Hagemann from Watchorn (1998) ....
in Kinematic History of the Boulder-Lefroy Shear Zone System and Controls on Associated Gold Mineralization, Yilgarn Craton, Western Australia
> Economic Geology
Published: 01 November 2005
F ig . 10. Geology of the Kambalda area redrawn by S. Hagemann from Watchorn (1998) . The Repulse shear zone links with the Playa shear zone and is the small curved fault that runs through the Victory deposit.
Journal Article
Near‐Surface Electrical Resistivity Investigation of Coseismic Liquefaction‐Induced Ground Deformation Associated with the 2016 M w 5.8 Pawnee, Oklahoma, Earthquake
Journal: Seismological Research Letters
Publisher: Seismological Society of America
Published: 03 May 2017
Seismological Research Letters (2017) 88 (4): 1017–1023.
... features of earthquake‐induced liquefaction (e.g., Youd, 1995 ). The 3 September 2016 M w 5.8 Pawnee, Oklahoma earthquake occurred in a region of complex fault interactions consisting of the Labette and Watchorn fault systems (Fig. 1a ) and produced the largest seismic moment release...
Journal Article
Serendipity: A search for lineaments finds impact craters?
Journal: The Leading Edge
Publisher: Society of Exploration Geophysicists
Published: 01 May 2017
The Leading Edge (2017) 36 (5): 431–436.
... process designed to identify lineaments typically associated with faults, fractures, etc. In examining these data, it was surprising to observe circular features, in particular a very large feature in the Texas Panhandle. Since the observed pattern was suggestive of an impact site, known impact craters...
Journal Article
Influence of structure on Mississippian paleotopography and distribution of Middle Pennsylvanian sandstone reservoirs on the Cherokee platform, northern Oklahoma
Journal: AAPG Bulletin
Publisher: American Association of Petroleum Geologists
Published: 01 December 2021
AAPG Bulletin (2021) 105 (12): 2519–2543.
...Figure 1. Map showing Oklahoma geologic provinces and inset of study area. Within the study area, black lines represent major named faults ( Chen et al., 2017 ) and green polygons represent major oil and gas fields ( Boyd, 2002 ). Oil and gas fields are labeled as A: Watchorn, B: Watchorn North...
Journal Article
The Magdala Lode System, Stawell, Southeastern Australia: Structural Style and Relationship to Gold Mineralization across the Western Lachlan Fold Belt
Journal: Economic Geology
Publisher: Society of Economic Geologists
Published: 01 March 2002
Economic Geology (2002) 97 (2): 325–349.
... reactivated by oblique dip-slip transport with a sinistral component. Significantly, veins related to this reactivation are commonly mineralized. This later deformation was also noted by Watchorn and Wilson (1989) , who argued that some mineralization was associated with later sinistral wrench faulting...
Journal Article
Controls on Ore Shoot Locations and Geometries at the Stawell Gold Mine, Southeastern Australia: Contributions of the Volcanosedimentary, Alteration, and Structural Architecture
Journal: Economic Geology
Publisher: Society of Economic Geologists
Published: 01 August 2008
Economic Geology (2008) 103 (5): 1029–1041.
... controlled the fluid pathways during alteration and mineralization. West of the Coongee fault, the Cambrian successions of the Stawell zone have undergone at least three ductile and two brittle deformation events related to east-northeast–west-southwest shortening ( Watchorn and Wilson, 1989 ; Wilson et...
Journal Article
Stratigraphy and Basin Analysis of the West Rand Group, Witwatersrand Supergroup
Journal: South African Journal of Geology
Publisher: Geological Society of South Africa
Published: 01 June 2024
South African Journal of Geology (2024) 127 (2): 239–270.
... ( Camden-Smith, 1980 ), Klerksdorp area ( Watchorn, 1981 ; Brink, 1986 ; Tainton and Meyer, 1990 ; Cairncross and Brink, 1990 ; Winter and Brink, 1991 ) and Vredefort area ( Minnaar, 1989 ). The only other regional, but generalised, compilation known is by Hutchinson ( 1975 ). Thus, a complete facies...
Journal Article
A new interpretation of soft-sediment deformation features (SSDs) in the Parktown Formation (lower West Rand Group); the physical processes of deformation during deposition
Journal: South African Journal of Geology
Publisher: Geological Society of South Africa
Published: 01 September 2024
South African Journal of Geology (2024) 127 (3): 569–584.
... where the strato-tectonic relationships are well known, as is the case for lower West Rand Group ( Vos, 1975 ; Camden-Smith, 1980 ; Watchorn, 1980 ; Stanistreet and McCarthy, 1991 and others). K.A.A. Hein: [email protected] L. Goslin: [email protected] © 2024 Geological Society...
Journal Article
New details on the volcanic and tectonic evolution of the Mesoarchaean Dominion Group with special reference to the Syferfontein Formation in the Ottosdal area (South Africa)
Journal: South African Journal of Geology
Publisher: Geological Society of South Africa
Published: 01 June 2024
South African Journal of Geology (2024) 127 (2): 219–238.
...-striking anticlines and synclines. Folding was accompanied by northwest-southeast-striking thrust faulting, either during or shortly after the formation of the Ventersdorp Supergroup. In the study area, post-Ventersdorp deformation is restricted to east-northeast–west-southwest-striking faults. © 2024...
Journal Article
Preface to the Focus Section on the 3 September 2016 Pawnee, Oklahoma, Earthquake
Journal: Seismological Research Letters
Publisher: Seismological Society of America
Published: 03 May 2017
Seismological Research Letters (2017) 88 (4): 953–955.
... of the two previously mapped faults: Watchorn fault and Labette fault. However, the actual source fault was the previously unmapped Sooner Lake fault (also known as the Pawnee fault). This is the largest earthquake since the 1950s in the instrumental history in Oklahoma. Many recent studies suggest that most...
Journal Article
Sedimentation in a humid, interior, extensional basin: the Cenozoic Li Basin, northern Thailand
Journal: Journal of the Geological Society
Publisher: Geological Society of London
Published: 01 March 2005
Journal of the Geological Society (2005) 162 (2): 333–347.
... formation was occurring as a result of regional extension related to major strike-slip faults. It was also a time when the climate was relatively humid. The Li Basin is one of about 40 Cenozoic basins in northern Thailand that have a fill of continental facies, and it is also one of a number of basins...
Journal Article
Felsic Volcanics in South Khetri Copper Belt, Rajasthan and their Metallogenic Significance
Publisher: Geological Society of India
Published: 01 July 1992
Jour. Geol. Soc. India (1992) 40 (1): 79–87.
... from Girawadi area. 7. Pumicestone from west of Udaipurwati. 8. Dark grey rock with relict rectangular outlines after feldspar (1) from Nangelarea. 9. 'Typical rhyolite' from the Dominion Group of Archaean age from South Africa (VOD Backstorm cited in Watchorn, 1981). 10. Average of 670 typical...
Journal Article
Kinematic History of the Boulder-Lefroy Shear Zone System and Controls on Associated Gold Mineralization, Yilgarn Craton, Western Australia
Journal: Economic Geology
Publisher: Society of Economic Geologists
Published: 01 November 2005
Economic Geology (2005) 100 (7): 1407–1426.
...F ig . 10. Geology of the Kambalda area redrawn by S. Hagemann from Watchorn (1998) . The Repulse shear zone links with the Playa shear zone and is the small curved fault that runs through the Victory deposit. ...
Journal Article
Stress Controls on Intrusion-Related Gold Lodes: Wonga Gold Mine, Stawell, Western Lachlan Fold Belt, Southeastern Australia
Journal: Economic Geology
Publisher: Society of Economic Geologists
Published: 01 August 2004
Economic Geology (2004) 99 (5): 941–963.
... are the lowermost unit exposed in the Stawell-Ararat fault zone. At Stawell, in the northwestern region of the fault zone ( Fig. 2a ), these lavas are conformably overlain by a volcanosedimentary succession referred to as the "Magdala volcanogenic rocks" or the "volcanogenic rocks" ( Watchorn and Wilson, 1989 , p...
Journal Article
Post-rift seaward downwarping at passive margins: New insights from southern Oman using stratigraphy to constrain apatite fission-track and (U-Th)/He dating
Journal: Geology
Publisher: Geological Society of America
Published: 01 July 2007
Geology (2007) 35 (7): 647–650.
... , N. , Fournier , M. , d'Acremont , E. , Leroy , S. , and Daniel , J.-M. , 2006 , Fault reactivation and rift localization: The northeastern Gulf of Aden margin : Tectonics , v. 25 p. TC1007 doi: 10.1029/2004tc001626. Braun , J. , and van der Beek , P. , 2004...
Journal Article
Lithostratigraphy of the Sinqeni Formation, Pongola Supergroup, South Africa
Journal: South African Journal of Geology
Publisher: Geological Society of South Africa
Published: 01 September 2020
South African Journal of Geology (2020) 123 (3): 399–420.
..., unconformable and faulted relationships. Subsequent work in the Hartland region suggested a broadly transitional or gradational contact ( Watchorn, 1978 , 1980a , b; Armstrong, 1980 ; Armstrong et al., 1982 ; Gold, 1993 ), with the boundary located arbitrarily at the first appearance of laterally persistent...
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