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Illawarra Superchron

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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP450.8
EISBN: 9781786203311
... (CI3n at 275.86±2.0 Ma) and Roa"dian (CI3r.an at 269.54±1.6 Ma). The mixed-polarity Illawarra Superchron begins in the early Wordian at 266.66±0.76 Ma. The Wordian–Capitanian interval is biased to normal polarity, but the basal Wuchiapingian begins the beginning of a significant reverse polarity...
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Journal Article
Published: 22 July 2016
Journal of the Geological Society (2016) 174 (1): 56-74.
... successions, we use magnetostratigraphy as a dating tool. The Kiaman (reverse polarity) Superchron (KRPS) extends from the mid-Carboniferous to the mid-Permian, but had ended by the early Wordian (mid-Guadalupian), after which reverse and normal polarity intervals (here called the Illawarra Superchron) occur...
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Series: Geological Society, London, Special Publications
Published: 01 January 2006
DOI: 10.1144/GSL.SP.2006.265.01.02
EISBN: 9781862395138
..., the geomagnetic field resumed reversing behaviour after the ∼50 Ma-long constant polarity of the Kiaman Reversed Polarity Superchron (‘Illawarra reversals’) during the Mid- to Late Wordian, or ~267 Ma. Very significantly, the magnetostratigraphic summary from this work indicates that the Siberian Traps were...
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Series: Geological Society, London, Special Publications
Published: 01 January 2006
DOI: 10.1144/GSL.SP.2006.265.01.01
EISBN: 9781862395138
...). The field began to reverse frequently during the Middle Permian, and this begins the Permo-Triassic mixed superchron. The initiation of the superchron is usually referred to as the Illawarra reversal. The Illawarra reversal thus has been taken to provide an important datum for intercontinental correlation...
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Series: Geological Society, London, Special Publications
Published: 01 January 2004
DOI: 10.1144/GSL.SP.2004.238.01.22
EISBN: 9781862394865
... their acquisition to post-date oroclinal bending. These primary and overprint palaeomagnetic results constrain the completion of oroclinal bending to between the Sakmarian extrusion of the Alum Rock volcanics and the end (marked by the Illawarra Reversal) of the ‘Kiaman’ Permo-Carboniferous Reverse Superchron (PCRS...
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Series: Geological Society, London, Special Publications
Published: 01 January 2013
DOI: 10.1144/SP376.7
EISBN: 9781862396449
... record is the Kiaman Reversed Polarity Superchron, which spans the Late Carboniferous–Middle Permian. This superchron was terminated by the Illawarra Reversal ( Irving & Parry 1963 ), which is considered a prime time-marker to anchor the continental Permian lithostratigraphy to the marine Middle...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP450.17
EISBN: 9781786203311
...-extinction recovery. Full-scale ecological recovery from the mass extinction took nearly 4.6 myr ( Lehrmann et al. 2006 , 2015 ). The Permian is characterized by a prominent period of stable, reverse, geomagnetic polarity known as the Kiaman Reverse Superchron, which started from the mid-Carboniferous...
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Series: Geological Society, London, Special Publications
Published: 01 January 2006
DOI: 10.1144/GSL.SP.2006.265.01.13
EISBN: 9781862395138
.... It is the ‘Altmark unconformity’ below the Upper Rotliegend II ( Hoffmann et al. 1989 ; Schneider & Gebhart 1993 ) of northern Germany - where it can come down to the Illawarra Reversal - and below the Silverpit Claystone Formation of the North Sea and the Pila Claystone Formation in Poland ( Karnkowski 1994...
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Journal Article
Published: 01 January 2010
Journal of the Geological Society (2010) 167 (1): 127-143.
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Series: Geological Society, London, Special Publications
Published: 01 January 2013
DOI: 10.1144/SP376.4
EISBN: 9781862396449
... boundary. The Illawarra event ended the reversed polarity of the Kiaman Superchron to a magnetic field of normal polarity in the Capitanian. However, this change was followed by a period of frequent reversals from normal to reverse and back right into the Triassic. Chang et al. (2006) dated a reverse...
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Journal Article
Published: 01 June 2016
South African Journal of Geology (2016) 119 (2): 435-452.
.... Lanci et al. (2013) were able to isolated primary magnetization components during thermal demagnetization. The reported polarity sequence is in good agreement with the magnetostratigraphic Illawarra sequence of Steiner (2006) , as well as the latest time-scales from Shen et al. (2011) and Gradstein...
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Journal Article
Published: 01 June 2014
South African Journal of Geology (2014) 117 (1): 1-14.
... for this dual polarity direction, and suggested the main carrier of the palaeomagnetic remanence to be magnetite/maghemite. Lanci et al. (2013) used the presence of both normal and reversed polarity zones to suggest that deposition occurred after the end of the Kiaman Superchron. The magnetostratigraphic...
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Journal Article
Journal: Lithosphere
Published: 18 May 2017
Lithosphere (2017) 9 (4): 595-608.
... (Kiaman Reverse Superchron) was observed ( Isozaki, 2009 ) and is not able to provide stratigraphic information on the Cisuralian and the early Guadalupian sequence. Recent studies show that the U-Pb age spectra of detrital zircons obtained from clastic sedimentary rocks can provide important constraints...
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