Fission track age of Transantarctic Mountain microtektites

被引：24
|
作者：
Folco, L. [1 ]
Bigazzi, G. [2 ]
D'Orazio, M. [3 ]
Balestrieri, M. L. [4 ]
机构：
[1] Univ Siena, Museo Nazl Antartide, I-53100 Siena, Italy
[2] CNR, Ist Geosci & Georisorse, Area Ric Pisa, I-56124 Pisa, Italy
[3] Univ Pisa, Dipartimento Sci Terra, I-56126 Pisa, Italy
[4] CNR, Ist Geosci & Georisorse, Area Ric Firenze, I-50121 Florence, Italy
来源：
GEOCHIMICA ET COSMOCHIMICA ACTA | 2011年 / 75卷 / 09期
关键词：
NORTHERN VICTORIA LAND; SOUTH CHINA SEA; AUSTRALASIAN MICROTEKTITES; SOURCE CRATER; GLASS SHARDS; FRONTIER MOUNTAIN; IMPACT CRATER; TEKTITES; LOCATION; FIELD;
D O I：
10.1016/j.gca.2011.02.014
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
We determined the fission track age of Transantarctic Mountain microtektites. The plateau method yielded a formation age of 0.85 +/- 0.17 Ma. This age overlaps within error with that of the catastrophic impact that produced the Australasian tektite-microtektite strewn field ca. 0.8 Ma ago. This provides further evidence that Transantarctic Mountain microtektites belong to the Australasian tektite-microtektite strewn field, as previously suggested on the basis of geochemical evidence, Sr-Nd isotope systematics and poorly resolved radiometric data. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2356 / 2360
页数：5
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