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Journal articles on the topic 'Australasian tektite/microtektite strewn field'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Di Vincenzo, Gianfranco, Luigi Folco, Martin D. Suttle, Lauren Brase, and Ralph P. Harvey. "Multi-collector 40Ar/39Ar dating of microtektites from Transantarctic Mountains (Antarctica): A definitive link with the Australasian tektite/microtektite strewn field." Geochimica et Cosmochimica Acta 298 (April 2021): 112–30. http://dx.doi.org/10.1016/j.gca.2021.01.046.

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2

Folco, Luigi, Massimo D'Orazio, Maurizio Gemelli, and Pierre Rochette. "Stretching out the Australasian microtektite strewn field in Victoria Land Transantarctic Mountains." Polar Science 10, no. 2 (2016): 147–59. http://dx.doi.org/10.1016/j.polar.2016.02.004.

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3

Schnetzler, C. C., L. S. Walter, and J. G. Marsh. "Source of the Australasian Tektite Strewn Field: A possible off-shore impact site." Geophysical Research Letters 15, no. 4 (1988): 357–60. http://dx.doi.org/10.1029/gl015i004p00357.

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4

Campanale, Fabrizio, Enrico Mugnaioli, Luigi Folco, et al. "Evidence for subsolidus quartz-coesite transformation in impact ejecta from the Australasian tektite strewn field." Geochimica et Cosmochimica Acta 264 (November 2019): 105–17. http://dx.doi.org/10.1016/j.gca.2019.08.014.

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5

Pan, Qing, Zhiyong Xiao, Yanxue Wu, Yunhua Wu, and Pan Yan. "Magnetite in Muong Nong‐Type Australasian Tektites From South China." Geochemistry, Geophysics, Geosystems 24, no. 10 (2023). http://dx.doi.org/10.1029/2023gc011103.

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AbstractSouth China belongs to the northern geographic branch of the Australasian strewn field (AASF) of tektites and microtektites, and this area is assumed to be part of the uprange region of the putative impactor trajectory that formed the yet undiscovered source crater. Ferromagnetic minerals in impact glass may record the magnetization process and thermal history of impact melt, but the possible identity of ferromagnetic minerals in AASF tektites from South China is elusive. Here, we perform a rock magnetism and crystallography study of iron‐sulfur spherules in Muong Nong‐type tektites fr

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6

Campanale, Fabrizio, Enrico Mugnaioli, Luigi Folco, Paola Parlanti, and Mauro Gemmi. "TiO2II: the high-pressure Zr-free srilankite endmember in impact rocks." July 19, 2023. https://doi.org/10.5281/zenodo.8165269.

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Supporting data for manuscript: <strong><em>TiO<sub>2</sub>II: the high-pressure Zr-free srilankite endmember in impact rocks. </em></strong>Included here: Raman spectroscopy data, PACOM map, all HRTEM data, and 3DED raw data of cr04 (TiO<sub>2</sub>II sample 1144a_16), cr09 (coesite sample 1144a_12), cr07 (TiO<sub>2</sub>II sample 1144a_12), cr15 (TiO<sub>2</sub>II sample 1144a_12) cr18 (rutile sample 1144a_12).

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7

Boschi, S., S. Goderis, S. Liao, and W. Li. "Compositional and Textural Variability Among Tektites From Indochina and South China: Insights Into the Impact Origin of the Australasian Tektite Strewn Field." Geochemistry, Geophysics, Geosystems 26, no. 4 (2025). https://doi.org/10.1029/2024gc012133.

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AbstractThe Australasian tektite strewn field, approximately 0.8 Ma in age, covers nearly 10% of the Earth's surface, making it the largest and most recent strewn field globally. This study provides a comprehensive analysis of the elemental composition and texture of tektites recovered from various locations within the strewn field, particularly Vietnam, Thailand, and South China. These tektites exhibit a consistent major and minor element composition similar to the Upper Continental Crust characteristic of normal tektites. Notable elemental deviations in the concentrations of CaO, FeO, MgO, P

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8

Folco, L., E. Mugnaioli, M. Masotta, and B. P. Glass. "Coesite discovered in Australasian microtektites." Geology, June 3, 2025. https://doi.org/10.1130/g53151.1.

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Microtektites are microscopic glass spherules produced by large impacts on Earth. Whether they formed as impact melt droplets or as condensates from a target-dominated vapor plume is debated. Combining optical, scanning, and transmission electron microscopy, we studied microscopic silica-rich inclusions in four Australasian microtektites to search for high-pressure phases produced by shock metamorphism in the precursor materials. Three microtektites are from deep-sea sediment cores close to the putative impact location in Southeast Asia, and one is from the Transantarctic Mountains at the extr

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9

Carter, Jack, Paolo Sanchez, Anthony J. Fuentes, Paul R. Renne, Dale H. Burns, and Hermann D. Bermúdez. "Inferences of Source Lithologies for Chicxulub Microtektites Using a Bayesian Approach." Geochemistry, Geophysics, Geosystems 26, no. 3 (2025). https://doi.org/10.1029/2024gc011924.

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AbstractThe Chicxulub impact on the Yucatán Peninsula at the Cretaceous‐Paleogene boundary (KPB) was a likely contributor to the end‐Cretaceous mass extinction. Glassy objects produced by quenched melt from the impact were distributed over a large region centered on the Caribbean basin and have long been known to preserve compositional information that could allow for more robust constraints on the pre‐impact target lithologies. The Chicxulub‐derived glasses are generally altered in most localities, but a recently discovered deposit at Gorgonilla Island, Colombia, yields a large percentage of

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10

Masotta, Matteo, Stefano Peres, Luigi Folco, et al. "3D X-ray tomographic analysis reveals how coesite is preserved in Muong Nong-type tektites." Scientific Reports 10, no. 1 (2020). http://dx.doi.org/10.1038/s41598-020-76727-6.

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AbstractMuong Nong-type (MN) tektites are a layered type of tektite associated to the Australasian strewn field, the youngest (790 kyr) and largest on Earth. In some MN tektites, coesite is observed in association with relict quartz and silica glass within inclusions surrounded by a froth layer. The formation of coesite-bearing frothy inclusions is here investigated through a 3D textural multiscale analysis of the vesicles contained in a MN tektite sample, combined with compositional and spectroscopic data. The vesicle size distribution testifies to a post-shock decompression that induced melt

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11

Campanale, F., E. Mugnaioli, L. Folco, P. Parlanti, and M. Gemmi. "TiO₂ II: The high‐pressure Zr‐free srilankite endmember in impact rocks." Meteoritics & Planetary Science, January 26, 2024. http://dx.doi.org/10.1111/maps.14137.

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AbstractTiO2II, a high‐pressure polymorph of titanium dioxide, is a diagnostic indicator of shock metamorphism in impact rocks. Due to its typical micro‐to‐nanometer scale, there are no ab initio structure solutions of natural TiO2II, thereby generating uncertainty about its crystal structure and its known similarity with srilankite (Ti0.67,Zr0.33)O2. Nanoscale electron diffraction investigation of TiO2II from the Australasian tektite strewn field provides the first ab initio structure solution revealing a primitive orthorhombic lattice with cell parameters a = 4.547 Å, b = 5.481 Å, c = 4.891

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12

Seydoux-Guillaume, A. M., P. Rochette, E. Gardés, et al. "Clues on the Australasian impact crater site inferred from detailed mineralogical study of a monazite inclusion in a Muong Nong tektite." Geology, September 4, 2024. http://dx.doi.org/10.1130/g52522.1.

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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 is the largest and the youngest discovered so far (788 ka). However, the location of the source crater remains unsolved. The present work is the first to investigate the only monazite ever found as an inclusion in a Muong Nong tektite (MNT) from Indochina. In-depth observations down to the nanoscale revealed that the monazite experienced very high temperature, with silicate melt injection sometimes trapped within porosity a

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13

Sieh, Kerry, Dayana Schonwalder Angel, Jason Herrin, et al. "Proximal ejecta of the Bolaven extraterrestrial impact, southern Laos." Proceedings of the National Academy of Sciences 120, no. 50 (2023). http://dx.doi.org/10.1073/pnas.2310351120.

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Sediments in southern Laos and eastern Thailand confirm that the Australasian tektite strewn field came from an extraterrestrial impact crater on the Bolaven Plateau of southern Laos. The principal evidence is the Bolaven diamicton, a pebbly to bouldery breccia that is thickest and coarsest on the plateau. Tektites, the melted target material strewn widely by the forces of the impact 789.0 ± 1.8 ka ago, lie either within the uppermost part of the diamicton or atop it. On the flanks of the plateau, the basal diamicton often contains clasts from preimpact lavas and gravels and sometimes mantles

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14

Campanale, F., E. Mugnaioli, M. Gemmi, and L. Folco. "The formation of impact coesite." Scientific Reports 11, no. 1 (2021). http://dx.doi.org/10.1038/s41598-021-95432-6.

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AbstractCoesite in impact rocks is traditionally considered a retrograde product formed during pressure release by the crystallisation of an amorphous phase (either silica melt or diaplectic glass). Recently, the detailed microscopic and crystallographic study of impact ejecta from Kamil crater and the Australasian tektite strewn field pointed in turn to a different coesite formation pathway, through subsolidus quartz-to-coesite transformation. We report here further evidence documenting the formation of coesite directly from quartz. In Kamil ejecta we found sub-micrometric single-coesite-crys

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15

Carling, Paul A., Toshihiro Tada, Ryuji Tada, et al. "Regionally extensive ejecta layer of the Australasian tektite strewn field: the MIS 20/19 large meteorite impact in mainland South-East Asia." Progress in Earth and Planetary Science 11, no. 1 (2024). http://dx.doi.org/10.1186/s40645-024-00660-9.

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AbstractAspects of the Quaternary sedimentary geology of South-East Asia have proven problematic in terms of interpretation as to the origins and relationships of the surface sediment layers. The MIS 20 large meteorite impact (c., 788 to 785 ka) occurred within mainland South-East Asia, evident from the well-researched ‘Australasian Tektite Strewn Field’ which extends over at least one tenth of the surface of the Earth. Key questions include: 1) whether the sedimentary impact signature is preserved in the Quaternary sediment cover of the region and 2) whether stratigraphic indicators and datin

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16

Boschi, Samuele, Steven Goderis, Shiyong Liao, and weiqiang li. "Compositional and textural variability among tektites from Indochina and South China: Insights into the Impact Origin of the Australasian Tektite Strewn Field." March 23, 2025. https://doi.org/10.5281/zenodo.15072903.

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