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Australasian strewn field

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Map showing <span class="search-highlight">Australasian</span> <span class="search-highlight">strewn</span> <span class="search-highlight">field</span> (after  Glass and Wu, 1993 ). Long-da...
Published: 20 December 2017
Figure 1. Map showing Australasian strewn field (after Glass and Wu, 1993 ). Long-dashed line is historical extent of field; short-dashed line indicates extension to Antarctica (e.g., Glass and Simonson, 2013 ). Circle (heavy line) encloses localities of tektites and microtektites with shocked
Journal Article
Published: 01 November 2013
American Mineralogist (2013) 98 (11-12): 1930–1937.
...) on the cores of a large group of microtektites from the Australasian, Ivory Coast, and North American (NA) tektite strewn field. The North American microtektites used in this study have been collected from five sites at different distances from the source crater; most have SiO 2 content between 70 and 80 wt...
FIGURES | View All (6)
Journal Article
Journal: Geology
Published: 01 April 2008
Geology (2008) 36 (4): 291–294.
...- 39 Ar formation age. We therefore suggest that Transantarctic Mountain microtektites (TAMM) define the southern extension of the Australasian strewn field. The margin of the Australasian strewn field is thus shifted southward by ~3000 km and the maximum distance from the putative parent impact site...
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Published: 01 January 1992
DOI: 10.1130/SPE293-p133
... Tektites are natural glasses that occur on earth in four distinct strewn fields (North American, Central European, Ivory Coast, and Australasian). Geochemical arguments have shown that tektites have been derived by hypervelocity impact melting from terrestrial upper crustal rocks, most likely...
Journal Article
Journal: Geology
Published: 01 May 1993
Geology (1993) 21 (5): 435–438.
... microtektite layer had previously been documented. Coesite and shocked quartz were also foundin seven out of 33 cores from the Australasian strewn field; however, no coesite or shocked quartz was found associated with the Ivory Coast microtektite layer. Stishovite was also found at three of the Australasian...
Book Chapter

Author(s)
G. J. H. McCall
Series: Geological Society, London, Special Publications
Published: 01 January 2006
DOI: 10.1144/GSL.SP.2006.256.01.23
EISBN: 9781862395046
... origin. There remain a number of unsolved questions — among them the source of the huge Australasian Strewn Field, the enigma of the manner of dispersal of large, irregular Muong Nong-type tektites, the relationship of microtektites to the larger tektites found on land, and the relationship of all...
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Image
<span class="search-highlight">Australasian</span> tektite and microtektite <span class="search-highlight">strewn</span> <span class="search-highlight">field</span> (dashed line;  Glass and...
Published: 01 March 2010
Figure 1. Australasian tektite and microtektite strewn field (dashed line; Glass and Koeberl, 2006 ). Sites where microtektites containing quartz inclusions were found are labeled. Dotted line encloses sites where shocked quartz and coesite were found within microtektite layer ( Glass and Wu
Journal Article
Journal: GSA Bulletin
Published: 01 October 1978
GSA Bulletin (1978) 89 (10): 1455–1458.
... between the microtektites and australites and have reaffirmed the low stratigraphic age of the australites. This paper reviews the evidence and concludes that the microtektites are indeed part of the Australasian strewn field and that the occurrence of australites in what are apparently late Pleistocene...
Book Chapter

Author(s)
Kieren T. Howard
Series: Geological Society, London, Geology of Series
Published: 01 January 2011
DOI: 10.1144/GOTH.21
EISBN: 9781862393943
...–1.4 1.2 K 2 O 2.3–2.5 2.4 2.3–2.6 2.5 P 2 O 5 0.0004–0.1 0.0 0.004–0.1 0.0 No. of analyses 100   99   Table 21.2. Major elements (percentages) in tektites of the Australasian strewn field, sorted by country   SiO 2 TiO 2 Al 2 O 3 FeO MnO...
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Image
A: The <span class="search-highlight">Australasian</span> tektite-microtektite (MTK) <span class="search-highlight">strewn</span>-<span class="search-highlight">field</span> (modified after...
Published: 08 August 2018
Figure 1. A: The Australasian tektite-microtektite (MTK) strewn-field (modified after Folco et al., 2016 ). The two MTK sample locations are shown: in the South China Sea (sediment core MD97–2142; Lee and Wei, 2000 ) and in the Transantarctic Mountains, Antarctica (Miller Butte). The possible
Image
<span class="search-highlight">Australasian</span> tektite <span class="search-highlight">strewn</span> <span class="search-highlight">field</span>. After  Cavosie et al. (2018) .
Published: 01 June 2018
Figure 1 Australasian tektite strewn field. After Cavosie et al. (2018) .
Journal Article
Journal: Geology
Published: 01 March 2010
Geology (2010) 38 (3): 211–214.
...Figure 1. Australasian tektite and microtektite strewn field (dashed line; Glass and Koeberl, 2006 ). Sites where microtektites containing quartz inclusions were found are labeled. Dotted line encloses sites where shocked quartz and coesite were found within microtektite layer ( Glass and Wu...
FIGURES | View All (4)
Journal Article
Journal: Geology
Published: 20 December 2017
Geology (2018) 46 (3): 203–206.
...Figure 1. Map showing Australasian strewn field (after Glass and Wu, 1993 ). Long-dashed line is historical extent of field; short-dashed line indicates extension to Antarctica (e.g., Glass and Simonson, 2013 ). Circle (heavy line) encloses localities of tektites and microtektites with shocked...
FIGURES
Series: GSA Special Papers
Published: 03 May 2022
DOI: 10.1130/2021.2553(25)
EISBN: 9780813795539
... Figure 1. Hypothetical location of the parent crater for Australasian tektites (AAT) in the Badain Jaran Desert (empty circle). Cross indicates the position of the WEDP02 drill core. Inset map shows mutual position of the impact area and the entire Australasian tektite strewn field...
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Journal Article
Journal: Geology
Published: 04 September 2024
Geology (2024) 52 (12): 865–869.
...A.-M. Seydoux-Guillaume; P. Rochette; E. Gardés; P.-M. Zanetta; S. Sao-Joao; Ph. de Parseval; B.P. Glass Abstract Tektites are terrestrial impact-generated glasses distributed over regions of Earth's surface with ejection distances up to 10,000 km. The Australasian tektite strewn field...
FIGURES | View All (4)
Series: GSA Special Papers
Published: 03 May 2022
DOI: 10.1130/2021.2553(24)
EISBN: 9780813795539
... suborbital modeling supports the distribution of distal ejecta to the Australasian tektite strewn field from Michigan’s Lower Peninsula. The mid-Pleistocene transition impact hypothesis unifies the Carolina bays with those tektites as products of an impact into the Saginaw Bay area of Lake Huron, USA...
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Journal Article
Published: 01 July 2001
Geological Magazine (2001) 138 (4): 503–504.
... impact craters, for example Chesapeake Bay (USA), Popigai (Siberia), Manson (USA) and Morokweng (Africa). The authors also discuss a few famous distal ejecta fields for which the source crater is unknown, for example the North American and Australasian strewn fields. The second half of the book...
Published: 01 September 2010
DOI: 10.1130/2010.2465(32)
.... Pre-edge peak features (intensity and energy) are consistent with those of tektites from the Ivory Coast studied here and with literature data of tektites from all the other known strewn fields (Australasian, Central European, and North American). The reduction of Fe to divalent state during Trinity...
Image
Raman spectra in the frequency range 20–1400 cm −1  of several impact relat...
Published: 01 May 2022
Figure 22. Raman spectra in the frequency range 20–1400 cm −1 of several impact related glasses: two tektites, respectively from the Australasian (AA) and Central European (moldavite) strewn fields, and two proximal impact glasses (Atacamaite and Aouelloul). The frequency position of the main
Image
Approximate location and extension of the four <span class="search-highlight">strewn</span> <span class="search-highlight">fields</span>: NA (North Ame...
Published: 01 May 2022
Figure 5. Approximate location and extension of the four strewn fields: NA (North American), IC (Ivory Coast), CE (Central Europe), and AA (Australasian). The known source craters are Chesapeake Bay (NA), Ries (CE), and Bosumtwi crater (IC). Redrawn after Folco et al. (2011 , 2016 ); Glass