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South Shetland Islands earthquake 1983

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Figure 2. Vertical component recordings of July 23, <b>1983</b>, <b>South</b> <b>Shetland</b> Is...
in > Geology
Published: 01 January 2000
Figure 2. Vertical component recordings of July 23, 1983, South Shetland Islands earthquake at station SLR in South Africa. Recording is lowpass filtered so that only signals with seismic periods longer than 30 s are retained. Seismic phases P, PP, and S are body wave phases. Rayleigh waves
Journal Article
Journal: Geology
Published: 01 November 2000
Geology (2000) 28 (11): 1043-1046.
... rollback mechanism. The widening of the Bransfield Basin and the lack of trench retreat are causing compression in the South Shetland Islands. Two different neotectonic stress directions, with interchanged stress axes, are found in the area of the South Shetland block. The Bransfield Basin widening...
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Journal Article
Published: 01 July 2000
Journal of the Geological Society (2000) 157 (4): 769-781.
... of the North Sea Basin like the NE–SW fault blocks beneath the East Shetland Basin, parts of the Tampen Spur, the Magnus and Manet Ridges and the Makrell Horst. The island of Bremanger is divided into two by the Dalevatn Fault Zone (C, Fig. 5). There is evidence for young movement on the fault zone...
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Series: Geological Society, London, Special Publications
Published: 01 January 2013
DOI: 10.1144/SP381.4
EISBN: 9781862396401
...; OBs, Ona Basin; PB, Pirie Bank; PBs, Powell Basin; PrBs, Protector Basin; SOI, South Orkney Islands; SOM, South Orkney Microcontinent; SSI, South Shetland Islands; TR, Terror Rise. ( b ) Structural map of the South Orkney Microcontinent, obtained from interpretation of seismic data modified from King...
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Series: Geological Society, London, Special Publications
Published: 01 January 2017
DOI: 10.1144/SP447.3
EISBN: 978-1-78620-37-00
..., Faroe–Shetland and Rockall basins: Fig. 1 ). In the south, similarly high stretching factors beneath the Porcupine Basin include an important contribution from Jurassic extension, whereas the early evolution of the (less stretched) Hatton Basin is poorly understood. From the Eocene onwards...
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Journal Article
Published: 01 October 2009
Bulletin of the Seismological Society of America (2009) 99 (5): 3077-3085.
... - 530 . Frohlich C. ( 1994 ). Earthquakes with non-double-couple mechanisms , Science 264 , 804 - 809 . Guidarelli M. Panza G. F. ( 2006 ). Determination of the seismic moment tensor for local events in the South Shetland Islands and Bransfield Strait , Geophys. J...
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Journal Article
Published: 01 December 2009
Bulletin of the Seismological Society of America (2009) 99 (6): 3097-3113.
... earthquakes and subduction velocity, and/or age of the subducting plate. Ruff and Kanamori (1980 , 1983 ) asserted that characteristic maximum earthquake size in subduction zones is positively correlated with relative plate velocity, and negatively correlated with age of the subducting plate. However, when...
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Journal Article
Published: 01 December 1996
Journal of the Geological Society (1996) 153 (6): 1011-1020.
.... L. Syn-plutonic origin and Tertiary age for the (?) Precambrian False Bay Schits of Livingston Island, South Shetland Islands British Antarctic Survey Bulletin 1983 52 21 32 Smellie J. L. Geochemistry and tectonic setting of alkaline volcanic rocks in the Antarctic Peninsula...
Journal Article
Published: 01 January 2011
Journal of the Geological Society (2011) 168 (1): 61-82.
... of the load occur beneath the region including the Welsh Borderland Fault System, and also beneath the Mendip Hills to the south of the Bristol Channel. (1) It can seen from Figure 14 b that the temperature and earthquake distribution in the crust are consistent with results from elsewhere, even in very...
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Journal Article
Published: 01 February 2019
Petroleum Geoscience (2019) petgeo2018-066.
... ). The predicted topographical emergence of the islands is the result of synrift footwall uplift ( Jackson & McKenzie 1983 ; Stein & Barrientos 1985 ). All of the islands are emergent footwalls, bounded by normal faults. The width of the islands is controlled primarily by fault-block width (i.e...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP456.11
EISBN: 9781786203373
... nature of waves generated by the SMF source to the north, as compared to the longer-wavelength, long-crested, non-dispersive earthquake-generated tsunami waves to the south (From Tappin et al. 2014 ). Fig. 9. Global distribution of mapped submarine landslides. Green lines: landslides...
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Series: SEPM Special Publication
Published: 01 January 2011
DOI: 10.2110/sepmsp.096.039
EISBN: 9781565762879
.... Fig.2. —Map of southern Bering Sea sediment facies from the passive continental margin to the Aleutian Island Arc volcanoes. Bdb is Beringian MTD sheet, Udb is the Umnak MTD sheet, Pdb is the Pochnoi MTD sheet, Adb is the Aleutian MTD sheet, BRdb is the Bowers Ridge MTD sheet, Srd is Shirshov Ridge...
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Series: AAPG Memoir
Published: 01 January 2003
DOI: 10.1306/M78834C2
EISBN: 9781629810539
... of the Mackenzie Delta with sources in the Brooks Range to the south ( Kirschner et al., 1983 ). Sources, reservoirs, and structural and stratigraphic traps occur in the passive margin section, including Triassic and Early Cretaceous clastic as well as Mississippian and Pennsylvanian clastic and carbonate...
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Series: Geological Society, London, Special Publications
Published: 01 January 2006
DOI: 10.1144/GSL.SP.2006.258.01.05
EISBN: 9781862395060
... palaeoenvironments in the Antarctic Peninsula region were probably of equal, if not greater, importance. James Eights (1833) reported the first fossil wood from the Antarctic (South Shetland Islands, Antarctic Peninsula), a discovery that pointed to a once vegetated landmass in what is now an icy world. Today...
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Journal Article
Journal: Lithosphere
Published: 01 October 2016
Lithosphere (2016) 8 (5): 427-450.
... of the Himalaya–Tibet orogenic belt : Nature , v. 307 , p. 17 – 22 , doi:10.1038/307017a0. Allen , P. , 1981 , Sediments and processes on a small stream-flow dominated, Devonian alluvial fan, Shetland Islands : Sedimentary Geology , v. 29 , p. 31 – 66 , doi:10.1016/0037-0738(81)90056-7...
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Journal Article
Journal: Economic Geology
Published: 01 May 2005
Economic Geology (2005) 100 (3): 491-514.
... terranes based on three main features: (1) extensive exploration for porphyry copper deposits, (2) definable geologic settings of the porphyry copper deposits in island and continental volcanic-arc subduction-boundary zones, and (3) diversity of epochs of porphyry copper deposit formation. Porphyry copper...
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Series: Geological Society, London, Geology of Series
Published: 01 January 2008
DOI: 10.1144/CEV2P.5
EISBN: 9781862393899
... bias from the direction of the geomagnetic field. The stable European pattern of Cenozoic declinations breaks down as soon as we enter the North Alpine Foreland Basin at the southern margin of stable Europe and south of this. The pattern here suggests large-scale movements during the Cenozoic Era...
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Journal Article
Journal: GSA Bulletin
Published: 01 March 2017
GSA Bulletin (2017) 129 (3-4): 392-414.
.... The age of the submarine deposit is ca. 4 Ma, and its magma source is similar to those for much younger Soufrière Hills deposits, indicating that the island experienced large-magnitude, subaerial caldera-forming explosive eruptions much earlier than recorded in land deposits. The deposit’s combined...
Journal Article
Journal: GSA Bulletin
Published: 22 May 2017
GSA Bulletin (2017) 129 (9-10): 1337-1356.
...Joseph M. Stockmeyer; John H. Shaw; Nathan D. Brown; Edward J. Rhodes; Paul W. Richardson; Maomao Wang; Leore C. Lavin; Shuwei Guan Abstract Many recent thrust fault earthquakes have involved coseismic surface faulting and surface folding strains. This multifaceted nature of active thrust sheet...
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Series: Geological Society, London, Special Publications
Published: 01 January 2015
DOI: 10.1144/SP401.9
EISBN: 9781862396777
... from plate tectonic processes such as subduction and arc accretion (reviewed in Bédard et al. 2013 and Harris & Bédard 2014 ). Studies of Venus thus help us better understand tectonic processes operative in an Archaean Earth (cf. Anderson 1981 ; McGill 1983 ; Morgan 1983 ; Markov 1986...
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