Twinning in meteoritic and synthetic perovskite

L. P. Keller; P R Buseck

Twinning in meteoritic and synthetic perovskite

L. P. Keller
, P R Buseck

Research output: Contribution to journal › Article › peer-review

Abstract

Transmission electron microscope observations of end-member perovskite from two carbonaceous chondrite meteorites show that fine-scale twinning is common. Three twin laws are observed: 1) a 90° rotation around [101], 2) a 180° rotation around [101], and 3) a 180° rotation around [121]. The results indciate that meteoritic perovskite displaying (121) twins was heated to temperatures above the cubic-orthorhombic phase transition (~1573 K) and rapidly cooled. This constraint strongly limits the mechanism responsible for the formation of perovskite in these meteorites. -from Authors

Original language	English (US)
Pages (from-to)	73-79
Number of pages	7
Journal	American Mineralogist
Volume	79
Issue number	1-2
State	Published - Jan 1 1994

ASJC Scopus subject areas

Geophysics
Geochemistry and Petrology

Cite this

@article{0c8321984019441286e86866788be592,

title = "Twinning in meteoritic and synthetic perovskite",

abstract = "Transmission electron microscope observations of end-member perovskite from two carbonaceous chondrite meteorites show that fine-scale twinning is common. Three twin laws are observed: 1) a 90° rotation around [101], 2) a 180° rotation around [101], and 3) a 180° rotation around [121]. The results indciate that meteoritic perovskite displaying (121) twins was heated to temperatures above the cubic-orthorhombic phase transition (\textasciitilde{}1573 K) and rapidly cooled. This constraint strongly limits the mechanism responsible for the formation of perovskite in these meteorites. -from Authors",

author = "Keller, \{L. P.\} and Buseck, \{P R\}",

year = "1994",

month = jan,

day = "1",

language = "English (US)",

volume = "79",

pages = "73--79",

journal = "American Mineralogist",

issn = "0003-004X",

publisher = "Walter de Gruyter GmbH",

number = "1-2",

}

TY - JOUR

T1 - Twinning in meteoritic and synthetic perovskite

AU - Keller, L. P.

AU - Buseck, P R

PY - 1994/1/1

Y1 - 1994/1/1

N2 - Transmission electron microscope observations of end-member perovskite from two carbonaceous chondrite meteorites show that fine-scale twinning is common. Three twin laws are observed: 1) a 90° rotation around [101], 2) a 180° rotation around [101], and 3) a 180° rotation around [121]. The results indciate that meteoritic perovskite displaying (121) twins was heated to temperatures above the cubic-orthorhombic phase transition (~1573 K) and rapidly cooled. This constraint strongly limits the mechanism responsible for the formation of perovskite in these meteorites. -from Authors

AB - Transmission electron microscope observations of end-member perovskite from two carbonaceous chondrite meteorites show that fine-scale twinning is common. Three twin laws are observed: 1) a 90° rotation around [101], 2) a 180° rotation around [101], and 3) a 180° rotation around [121]. The results indciate that meteoritic perovskite displaying (121) twins was heated to temperatures above the cubic-orthorhombic phase transition (~1573 K) and rapidly cooled. This constraint strongly limits the mechanism responsible for the formation of perovskite in these meteorites. -from Authors

UR - https://www.scopus.com/pages/publications/0028193735

UR - https://www.scopus.com/pages/publications/0028193735#tab=citedBy

M3 - Article

AN - SCOPUS:0028193735

SN - 0003-004X

VL - 79

SP - 73

EP - 79

JO - American Mineralogist

JF - American Mineralogist

IS - 1-2

ER -

Twinning in meteoritic and synthetic perovskite

Abstract

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this