1-20 OF 183 RESULTS FOR

Worcester Fault

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article
Published: 01 September 2001
South African Journal of Geology (2001) 104 (3): 231–242.
... the frontal sector of the eastern branch of the Cape Fold Belt (as far as the Kango Fault), the crust thins to less than 40km. Farther southward still, for ~ 50km beneath the central sector of the eastern branch of the Cape Fold Belt to the extension of the Worcester Fault, the crust thickens to about 45km...
FIGURES | View All (10)
Image
Mesozoic rift basins of the Eastern and Western Cape provinces of South Afr...
Published: 01 June 2017
, Heidelberg, Mossel Bay, Knysna and Plettenberg Bay Basins, whereas the Gamtoos-Oudtshoorn basin line contains the Oudtshoorn, Vlakteplaas, Georgida, Baviaanskloof and Gamtoos Basins. The exceptionally long, parallel fault arrays (Cango and Worcester Faults) exploit pre-existing weaknesses in the Cape Fold
Image
Schematic N-S cross section at about 21°E through the Karoo Basin (modified...
Published: 01 September 2001
precisely; the northernmost frontal thrust are almost certainly blind and buried beneath the Beaufort Group; the southernmost structures of the Cape Fold Belt are hidden offshore to the south. Location of the two regional Jurassic-Cretaceous listric extensional faults (the Kango and the Worcester faults
Image
The study area (inset) and distribution of earthquake epicenters determined...
Published: 18 March 2015
clusters defined by Du Plessis (1996) : 1, Springbok/Kamieskroon; 2, Grootvloer; 3, Ceres; 4, Koffiefontein; 5, eastern Lesotho; 6, Matatiele; and 7, Phalaborwa. The broken lines indicated as 8 and 9 on the map show the extent of the Kango–Baviaanskloof and Worcester faults, respectively ( Du Plessis
Image
Seismic zones defined by  Du Plessis (1996)  are shown with a thick outline...
Published: 01 March 2016
borders) ( Du Plessis (1996) are numerically indicated as: 1, Springbok/Kamieskroon; 2, Grootvloer; 3, Ceres; 4, Koffiefontein; 5, Eastern Lesotho; 6, Matatiele; 7, Kango–Baviaanskloof fault; 8, Worcester fault; 9, Phalaborwa; 10, Tzaneen, 11, Lephepe and 12, Leeu-Gamka ( Matuludi, 2013 ). The polygons
Journal Article
Published: 01 August 1988
Journal of the Geological Society (1988) 145 (4): 519–522.
... system, is bounded to west and east by major, sub-planar normal faults which formed by the extensional reactivation of much older structures; respectively the Malvern Axis and a similar though concealed structure forming its mirror image to the east. Within the Worcester Basin a thick Permo-Triassic...
Series: GSA Special Papers
Published: 01 January 1986
DOI: 10.1130/SPE210-p9
... metamorphism, and strike-slip faulting. Metamorphism throughout the outcrop areas ranges from anchizone to K-spar zone in the Narragansett Basin; anchizone to possibly lower greenschist in the Norfolk Basin; and below the almandine zone in the “Worcester Coal Mine” deposit. Important effects of the tectonism...
Image
Mesozoic basins of the southern Cape, their distribution, and the type area...
Published: 01 March 2019
Figure 1. Mesozoic basins of the southern Cape, their distribution, and the type area of the Buffelskloof Formation. The Worcester-Pletmos basin line consists of the Worcester, Robertson, Swellendam, Heidelberg, Mossel Bay, Knysna and Plettenberg Bay Basins, whereas the Gamtoos-Oudtshoorn Basin
Journal Article
Published: 01 April 1997
Journal of the Geological Society (1997) 154 (2): 225–237.
... of the main basin-bounding faults of the Permo-Triassic Worcester Graben. Restoration of major pre-Triassic normal faults has allowed reconstruction of earlier compressional structures. In contrast to the WNW-ESE trend of structures to the south, in the Variscan foreland fold-thrust belt, major faults...
Image
Bedrock geologic map of the southern <b>Worcester</b> mountains watershed, Middles...
Published: 12 December 2011
, Route 100 Fault; WT, Waterbury Thrust, WCT, Worcester Complex Thrust, MT, Middlesex Thrust.
Journal Article
Published: 01 February 1985
Journal of the Geological Society (1985) 142 (1): 187–202.
...R. A. Chadwick Abstract Two seismic reflection lines recently shot in the western part of the Worcester Basin suggest that its western boundary is defined by major syn-depositional normal faults, downthrowing to the east and active throughout Permo-Triassic times. Farther east, other faults can...
Image
Mesozoic rift basins of the Eastern and Western Cape provinces of South Afr...
Published: 01 June 2017
Figure 1. Mesozoic rift basins of the Eastern and Western Cape provinces of South Africa and the major units of the onshore Uitenhage Group. The offshore extension of the Uitenhage Group is only shown schematically. The Worcester-Pletmos basin line comprises the Worcester, Robertson, Swellendam
Journal Article
Published: 01 June 1995
Journal of the Geological Society (1995) 152 (3): 561–566.
...A. ATES; P. KEAREY Abstract The aeromagnetic field over the Worcester Graben, a major N-S-oriented, fault-bounded sedimentary basin, shows a large positive anomaly of 100 nT amplitude near the town of Tetbury. A new method for the determination of the magnetization direction of the causative body...
Series: GSA Memoirs
Published: 01 January 1976
DOI: 10.1130/MEM146-p103
... but is probably Devonian. The Clinton facies intrudes the Oakdale Quartzite, Straw Hollow Diorite, and Worcester Phyllite but is in fault contact with the Brimfield Schist and the Harvard Conglomerate. The heterogeneous nature of the Devens-Long Pond facies on mesoscopic and macroscopic scales suggests...
Series: GSA Memoirs
Published: 01 January 1976
DOI: 10.1130/MEM148-p241
.... Intrusive igneous rocks form the base of this sequence, and a fault at the top separates it from the other sequence. The second, thinner sequence (1,830 m) consists chiefly of thin-bedded biotitic feldspathic quartzite, greenish-to purplish-gray calc-silicate rock, and thin layers of biotite schist...
Journal Article
Published: 01 August 1971
Bulletin of the Seismological Society of America (1971) 61 (4): 851–859.
... between Ceres and Worcester having fairly tight folds plunging steeply toward the northeast. Figure 2 is a topographic map showing the locations of the major fault zones in the area. The main fault is the Worcester fault zone which has, in places, a throw of over 4,000 m. Movements along this fault have...
Image
SSC  model for the  PSHA  performed for the Thyspunt site (star). The <b>fault</b>...
Published: 01 November 2013
Figure 2. SSC model for the PSHA performed for the Thyspunt site (star). The fault sources are the Plettenberg ( PLET ), Gamtoos ( GAM ), Kango (KNG), and Worcester (WOR) faults, and the Agulhas Fracture Zone (AFZ). The area sources are the Extended Continental Crust ( ECC ), Karoo (KAR
Image
Geological sketch map of the major <b>faults</b> and basins with superimposed bore...
Published: 01 November 2001
– London Platform Faults; MF – Mere Fault; PB – Pewsey Basin; PF – Pewsey Fault; PWB – Portland–Wight Basin; PWF – Portland–Wight Fault; SDH – South Dorset High; VF – Variscan Front; WBF – Wight–Bray Fault; WeB – Weald Basin; WoB – Worcester Basin (Graben); WPF – Wardour-Portsdown Faults.
Journal Article
Published: 01 March 2019
South African Journal of Geology (2019) 122 (1): 97–104.
...Figure 1. Mesozoic basins of the southern Cape, their distribution, and the type area of the Buffelskloof Formation. The Worcester-Pletmos basin line consists of the Worcester, Robertson, Swellendam, Heidelberg, Mossel Bay, Knysna and Plettenberg Bay Basins, whereas the Gamtoos-Oudtshoorn Basin...
FIGURES | View All (7)
Journal Article
Published: 01 June 2017
South African Journal of Geology (2017) 120 (2): 281–293.
..., Heidelberg, Mossel Bay, Knysna and Plettenberg Bay Basins, whereas the Gamtoos-Oudtshoorn basin line contains the Oudtshoorn, Vlakteplaas, Georgida, Baviaanskloof and Gamtoos Basins. The exceptionally long, parallel fault arrays (Cango and Worcester Faults) exploit pre-existing weaknesses in the Cape Fold...
FIGURES | View All (9)