skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: High-pressure phase transitions of α-quartz under nonhydrostatic dynamic conditions: A reconnaissance study at PETRA III

Journal Article · · Meteoritics and Planetary Science
DOI:https://doi.org/10.1111/maps.12840· OSTI ID:1433951
 [1]; ORCiD logo [2];  [3];  [4];  [2];  [5];  [6];  [7]
  1. Albert Ludwigs Univ. of Freiburg (Germany). Inst. of Geo and Environmental Sciences and Dept. of Geology and Crystallography
  2. Friedrich Schiller Univ., Jena (Germany). Inst. of Geosciences and Dept. of Mineralogy
  3. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  4. Albert Ludwigs Univ. of Freiburg (Germany). Inst. of Geo and Environmental Sciences and Dept. of Crystallography
  5. Stony Brook Univ., NY (United States). Mineral Physics Inst.; Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)
  6. UniLaSalle, Beauvais (France). Dept. of Geosciences
  7. Albert Ludwigs Univ. of Freiburg (Germany). Inst. of Geo and Environmental Sciences and Dept. of Geology

Hypervelocity collisions of solid bodies occur frequently in the solar system and affect rocks by shock waves and dynamic loading. A range of shock metamorphic effects and high-pressure polymorphs in rock-forming minerals are known from meteorites and terrestrial impact craters. In this paper, we investigate the formation of high-pressure polymorphs of α-quartz under dynamic and nonhydrostatic conditions and compare these disequilibrium states with those predicted by phase diagrams derived from static experiments under equilibrium conditions. We create highly dynamic conditions utilizing a mDAC and study the phase transformations in α-quartz in situ by synchrotron powder X-ray diffraction. Phase transitions of α-quartz are studied at pressures up to 66.1 and different loading rates. At compression rates between 0.14 and 1.96 GPa s-1, experiments reveal that α-quartz is amorphized and partially converted to stishovite between 20.7 GPa and 28.0 GPa. Therefore, coesite is not formed as would be expected from equilibrium conditions. With the increasing compression rate, a slight increase in the transition pressure occurs. The experiments show that dynamic compression causes an instantaneous formation of structures consisting only of SiO6 octahedra rather than the rearrangement of the SiO4 tetrahedra to form a coesite. Although shock compression rates are orders of magnitude faster, a similar mechanism could operate in impact events.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); German Research Foundation (DFG)
Grant/Contract Number:
SC0012704; 830/14‐1; LA830/17‐1
OSTI ID:
1433951
Report Number(s):
BNL-203468-2018-JAAM
Journal Information:
Meteoritics and Planetary Science, Vol. 52, Issue 7; ISSN 1086-9379
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 13 works
Citation information provided by
Web of Science

References (37)

First Natural Occurrence of Coesite journal July 1960
Shock metamorphism of quartz in nature and experiment: I. Basic observation and theory* journal March 1994
Elasticity and constitution of the Earth's interior journal June 1952
A class of new high-pressure silica polymorphs journal June 2004
New evidence for the impact origin of the Ries Basin, Bavaria, Germany journal October 1961
The convincing identification of terrestrial meteorite impact structures: What works, what doesn't, and why journal January 2010
Anatomy of black veins in Zagami: clues to the formation of high-pressure phases journal December 2000
Crystalline Post-Quartz Phase in Silica at High Pressure journal September 2001
Shock Metamorphism of Minerals journal February 2012
Anharmonicity and the equation of state for gold journal February 1989
Coesite in suevite from the Ries impact structure (Germany): From formation to postshock evolution journal March 2017
A crystal chemical study of stishovite journal April 1983
Recent advances in magnetic structure determination by neutron powder diffraction journal October 1993
Ultrafast visualization of crystallization and grain growth in shock-compressed SiO2 journal September 2015
Polymorphism, superheating, and amorphization of silica upon shock wave loading and release: SHOCK POLYMORPHISM OF SILICA journal September 2003
Pressure-amorphized SiO 2 α-quartz: An anisotropic amorphous solid journal January 1992
Microscopic evidence of stishovite generated in low-pressure shock experiments on porous sandstone: Constraints on its genesis journal April 2017
Coesite and pure pyrope in high-grade blueschists of the Western Alps: a first record and some consequences journal May 1984
New high-pressure transformation in α-quartz journal June 1993
Transformation pathways of silica under high pressure journal November 2006
Transition to a crystalline high-pressure phase in α GeO 2 at room temperature journal April 2000
Shock processes in porous quartzite: Transmission electron microscope observations and theory journal January 1976
Ab-initio structure determination of LiSbWO6 by X-ray powder diffraction journal March 1988
A New Dense Crystalline Silica journal July 1953
A profile refinement method for nuclear and magnetic structures journal June 1969
High Pressure Polymorphism in Silica journal March 1998
High pressure induced phase transformation of SiO2 and GeO2: difference and similarity journal August 2004
Crystal structures of quartz and magnesium germanate by profile analysis of synchrotron-radiation high-resolution powder data journal April 1988
A New Phase and Pressure Induced Amorphization in Silica journal March 1998
Structural changes of quartz-type crystalline and vitreous GeO 2 under pressure journal March 2001
A coesite-sanidine grospydite from the Roberts Victor kimberlite journal March 1977
Numerical modelling of the impact crater depth–diameter dependence in an acoustically fluidized target journal November 2003
Ab initio studies of phonon softening and high-pressure phase transitions of α -quartz Si O 2 journal March 2006
Two-dimensional detector software: From real detector to idealised image or two-theta scan journal January 1996
Microstructural Observations of α-Quartz Amorphization journal January 1993
Crystalline Post-Quartz Phase in Silica at High Pressure text January 2001
Erratum: Ultrafast visualization of crystallization and grain growth in shock-compressed SiO2 journal October 2015

Cited By (5)

Unconventional high-pressure Raman spectroscopy study of kinetic and peak pressure effects in plagioclase feldspars journal January 2020
New dynamic diamond anvil cells for tera-pascal per second fast compression x-ray diffraction experiments journal June 2019
Experimental impact cratering: A summary of the major results of the MEMIN research unit journal February 2018
Phase transitions of α-quartz at elevated temperatures under dynamic compression using a membrane-driven diamond anvil cell: Clues to impact cratering? journal April 2018
New dynamic diamond anvil cells for tera-pascal per second fast compression x-ray diffraction experiments text January 2019

Similar Records

Phase transitions of α-quartz at elevated temperatures under dynamic compression using a membrane-driven diamond anvil cell: Clues to impact cratering?
Journal Article · Fri Apr 06 00:00:00 EDT 2018 · Meteoritics and Planetary Science · OSTI ID:1433951

A New Multiphase Equation of State for SiO2
Technical Report · Fri Oct 06 00:00:00 EDT 2017 · OSTI ID:1433951

Evidence of shock-compressed stishovite above 300 GPa
Journal Article · Tue Jun 23 00:00:00 EDT 2020 · Scientific Reports · OSTI ID:1433951