Ion beam study of a possible extraterrestrial body signature in Libyan desert glass

被引：7

作者：

Cipriani, C

Corazza, M

Giuli, G

Cecchi, VM

Pratesi, G

Rossi, P

Vittone, E

机构：

[1] Univ Florence, Sez Mineral, Museo Storia Nat, I-50121 Florence, Italy

[2] Univ Florence, Dipartimento Sci Terra, I-50121 Florence, Italy

[3] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy

[4] Ist Nazl Fis Nucl, I-35131 Padua, Italy

[5] Univ Turin, Dipartimento Fis Sperimentale, I-10125 Turin, Italy

[6] Ist Nazl Fis Nucl, I-10125 Turin, Italy

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2000年 / 170卷 / 1-2期

关键词：

Libyan desert glass; impactites; micro-PIXE; ionoluminescence; cathodoluminescence;

D O I：

10.1016/S0168-583X(00)00113-0

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Ion beams have been employed to get micro-PIXE measurements and ionoluminescence analyses on a natural silica glass, known as Libyan desert glass (LDG), representing a probable fusion product of desert sandstone due to the impact of an extraterrestrial body. In particular some brown streaks, which are present in a few specimens and considered as traces of the impactor, have been characterized. The presence of discrete bands with different luminescence intensity has been revealed by both ionoluminescence and cathodoluminescence. Several hypotheses have been proposed in order to explain the luminescence properties of this material. Finally, the usefulness of the synergic combination of ionoluminescence and micro-PIXE, to characterize LDG, has been showed. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：187 / 192

页数：6

共 20 条

[1]

Barakat A. A., 1997, P SIL 96 M LIB DES G, P29

[2] Geochemistry and origin of Libyan Desert glasses [J].