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Can I read Impactite from Henbury, Australia on EtoBox?
Impactite from Henbury, Australia by Yang Ding; David R. Veblen is a Earth and Planetary Sciences article available to read on EtoBox.
What is Impactite from Henbury, Australia about?
Impactite was formed in several small, closely spaced craters by the impact of iron meteorites on sandstone at Henbury, central Australia. Through application of energy dispersive X-ray spectroscopy, convergent-beam electron diffraction, and selected-area electron diffraction, chemical compositions and space groups were determined for multiple crystalline phases in the impactite. Based on this chemical and structural information, sub-micrometer fayalite (approximately 40% of the total volume of crystalline phases), magnetite (25%), α-quartz (20%), hercynite (10%), diamond (3%), and a Nisulfide phase (2%) were identified, in addition to abundant glass. Compared with the pre-shock rock, the Henbury impactite was subjected to dramatic phase transformation and chemical redistribution and fractionation processes during the impact event. The newly formed dendritic crystalline phases such as fayalite, magnetite, and hercynite, as well as the surrounding glass, may represent metastable eutectic crystallization that occurred between approximately 1600 °C (liquidus temperature of hercynite) and 850 °C (75% of the liquidus temperature of fayalite) on a time scale of seconds. Generally, the co
Who reads Impactite from Henbury, Australia?
It is typically read by researchers, students, and practitioners in Earth and Planetary Sciences.
- Author
- Yang Ding; David R. Veblen
- Publisher
- Mineralogical Society of America; Walter de Gruyter GmbH (ISSN 0003-004X)
- Published
- 2004
- Language
- SR
- Field
- Earth and Planetary Sciences (Physical Sciences)