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Reunion Subchron

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Journal Article
Journal: Geology
Published: 01 August 2014
Geology (2014) 42 (8): 643–646.
... that the transitional polarity preserved by HRT member B does not record the Reunion subchron, but rather a separate, younger geomagnetic event. Our novel approach places the thermal and chemical regime of silicic magmas within a temporal context and demonstrates the rapid evolution of a large volume of silicic magma...
FIGURES
Journal Article
Journal: GSA Bulletin
Published: 01 April 1992
GSA Bulletin (1992) 104 (4): 409–428.
... are recognized; within these, the Jaramillo, Olduvai, Reunion(?), and Kaena(?) Subchronozones are present. Six short stratigraphic intervals exhibit anomalous remanent inclinations that may record excursions and brief subchrons within the Brunhes and Matuyama Chronozones. Age estimates suggest correlation...
Journal Article
Journal: GSA Bulletin
Published: 01 May 2002
GSA Bulletin (2002) 114 (5): 559–568.
... previously been related to the Reunion Normal- Polarity Subchron. Dating of the Reunion event has been reviewed and its ages have been normalized to a common value for mineral standards. The age of the Huckleberry Ridge Tuff is significantly younger than lava flows of the Reunion event on Ré union Island...
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Journal Article
Journal: Geology
Published: 01 October 2001
Geology (2001) 29 (10): 887–890.
... magnetostratigraphic interpretation supersedes the results of Braun et al. (1991) . The firm identification of the Olduvai subchron as the predominant normal zone in the Erk-el-Ahmar section removes the ambiguity in the former study, where the normal zone was considered as one of the two Reunion subchrons. If we...
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Journal Article
Published: 01 June 2000
Canadian Journal of Earth Sciences (2000) 37 (6): 863–877.
... assume that the Cobb Mountain (1.201–1.211 Ma) and Réunion (2.14–2.15 Ma) subchrons are too short to have been recorded by these two units. Fig. 11. Composite stratigraphy of the two main Klondike valley terraces: Australia and Jackson hills (uppermost terrace) and Midnight Dome Terrace...
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Journal Article
Journal: Geology
Published: 01 September 2006
Geology (2006) 34 (9): 717–720.
... Basin opened at the remarkable full-spreading rate of ∼19 cm/ yr between ca. 1.6 and 2.1 Ma about the Olduvai subchron. This is the highest spreading rate ever documented, including that observed at the Cocos-Pacific plate boundary. Renewed but slow spreading during the Brunhes chron (after 0.78 Ma...
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Series: Geological Society, London, Special Publications, Geological Society, London, Special Publications
Published: 01 January 2013
DOI: 10.1144/SP373.8
EISBN: 9781862396364
... the way through the calcarenites between 270 and 310 m in the section. Our magnetostratigraphy observed several normal polarity sites within the calcarenites in this interval that we correlate to the Olduvai subchron (C2n). Our magnetostratigraphy failed to resolve the short-lived Réunion normal subchron...
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Series: SEPM Special Publication, SEPM Special Publication
Published: 01 January 2009
DOI: 10.2110/sepmsp.092.247
EISBN: 9781565762008
... and reversed polarities obtained are interpreted as the Gauss chron and the lower Matuyama chron of the geomagnetic polarity time scale (GPTS), respectively; the normal subchron of Reunion has not been reached. The biostratigraphic evidence leading to this interpretation are: (1) the presence...
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Image
Figure 4. Stratigraphic and magnetostratigraphic log of upper 2.8 km of Yec...
in > Geology
Published: 01 August 2000
Figure 4. Stratigraphic and magnetostratigraphic log of upper 2.8 km of Yecheng section. Magnetic polarity is compared with standard polarity time scale of Cande and Kent (1995) . Letters O, R, K, M, C, N, and S on right side of scale refer to subchrons Olduvai, Reunion, Kaena, Mammoth, Cochiti
Series: SEPM Special Publication, SEPM Special Publication
Published: 01 January 2001
DOI: 10.2110/pec.01.70.0101
EISBN: 9781565761926
..., Brunhes/Mat. boundary 110.3 >1.6 uppermost G. tosaensis tenuitheca (1.6—3.5 Ma) 60.9 55.7 1.77 top C2n (top Olduvai subchron) 82.1 76.9 1.95 base C2n (base Olduvai subchron) 98.8 93.6 2.14 top C2r.1n (Reunion event) 119.8 114.6 <2.2 occurrence of P. primalis (2.2 Ma...
Journal Article
Journal: Geology
Published: 01 March 2012
Geology (2012) 40 (3): 203–206.
.... Courtillot V. Gallet Y. Quidelleur X. Gillot P.Y. Haile T. , 1999 , Paleomagnetic and geochronological identification of the Réunion subchron in Ethiopian Afar : Journal of Geophysical Research , v. 104 , p. 10,405 – 10,419 , doi:10.1029/1999JB900014 . Kidane T. Courtillot...
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Journal Article
Published: 10 February 2010
Geological Magazine (2010) 147 (5): 705–717.
... to samples dated here between 2.1 and 2.2 Ma, within the Matuyama Reversed Chron. The Réunion Subchron of normal polarity is within this age range (Kidane et al . 2007 ), so that it is suggested that these normal polarity lavas were erupted during the Réunion Subchron. Normal polarity measured in samples...
Journal Article
Journal: GSA Bulletin
Published: 01 March 2012
GSA Bulletin (2012) 124 (3-4): 611–625.
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Journal Article
Published: 01 April 1994
Journal of the Geological Society (1994) 151 (2): 235–249.
... in the proportion of sin- istrally-coiled Neogloboquadrina pachyderma (Ehrenberg) at 82.0 m. This increase in N . pachyderma is dated at about 1.73 to 1.77Ma, somewhat younger than the age of 2.0Ma associated with the Reunion subchron (Fig. 4). The Pliocene-Pleistocene boundary (1.64 Ma) is gene- rally taken just...
Journal Article
Journal: Geology
Published: 01 March 2010
Geology (2010) 38 (3): 263–266.
... three members coincided with a short polarity event distinct from and ∼50 ka younger than the end of the Reunion subchron (ca. 2.11 Ma). Based on inferred rates of geomagnetic field directional changes during excursions or full field reversals (e.g., Clement, 2004 ; Valet et al., 2008 ), the data from...
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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 16 May 2018
Lithosphere (2018) 10 (4): 530–544.
... in the Xiaxian section, 16 paleosol layers are identified ( Xiong et al., 2017 ), so five paleosol layers are missing at the same place of the WYK section ( Fig. 8A ). Meanwhile, the Cobb Mountain subchron (C1r.2n) and Reunion subchron (C2r.1n) are not found in the magnetostratigraphy because of comparatively...
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Journal Article
Published: 01 August 1997
Journal of the Geological Society (1997) 154 (4): 633–643.
... the whole parasequence stack to be within the Matuyama, C2r chron, with the small segment of normal polarity representing the Réunion subchron (Fig. 6). This subchron is calibrated as 0° Deforming Sub-Strata mesoplanktonic fauna biostratigraphic markers only in deeper bathymetry sea-level variations 3x° 2x...
Journal Article
Published: 01 March 2012
Journal of the Geological Society (2012) 169 (2): 213–226.
... subchron, within the Gilbert Chron, has estimated boundary ages of 4.187 and 4.300 Ma ( Gradstein et al. 2004 ), significantly older than the Naibar Tuff. Tuff B-delta in the Shungura Formation was identified and described by de Heinzelin & Haersaerts (1983) at a single locality extending...
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Journal Article
Journal: Geosphere
Published: 26 July 2018
Geosphere (2018) 14 (5): 2188–2205.
... and the intermediate-length intervals (N2, N3, and N10) with the Jaramillo, Cobb Mountain, and Reunion subchrons in the Matuyama reversed polarity chron, respectively. There remain several short normal polarity intervals that do not appear to correlate with the GPTS. Although these intervals could reflect localized...
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Journal Article
Published: 30 January 2014
Journal of the Geological Society (2014) 171 (3): 329–341.
... be unambiguously correlated to Subchron C2An.1n (Gauss). Therefore, the two overlying magnetozones correlate with Chrons C2r and C2n, respectively. The short normal polarity interval within Chron C2r can then be correlated with Subchron C2r.1n (Réunion). Despite the unknown hiatus associated with SB2, the inverse...
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