Nature Search

Upper mantle seismic anisotropy resulting from pressure-induced slip transition in olivine

Seismic anisotropy in Earth’s oceanic lithosphere and in the mantle wedge above subduction zones is associated with crystallographic preferred orientations of olivine. Experiments at high pressure and temperature suggest that a pressure of ∼3 GPa can induce the same changes in the crystal structure of olivine as high water activity at lower pressures.

Haemyeong Jung
Won Mo
Harry W. Green
Research21 Dec 2008
Nature Geoscience

Volume: 2, P: 73-77
Mineral inclusions in diamonds may be synchronous but not syngenetic

Trapped mineral inclusions in diamonds give information on diamond crystallization and ages, under the assumption that they are syngenetic (formed simultaneously). Here, the authors show evidence that many mineral inclusions are protogenetic (formed at different times) thus undermining previous diamond ages.

Fabrizio Nestola
Haemyeong Jung
Lawrence A. Taylor
ResearchOpen Access24 Jan 2017
Nature Communications

Volume: 8, P: 1-6
Protracted late Paleozoic volcanic arc activity along the Northeast Asian continental margin

Hyeong Soo Kim
Yong Park
Albert Chang-sik Cheong
ResearchOpen Access29 Oct 2025
Scientific Reports

Volume: 15, P: 1-12
Crystal preferred orientation of an amphibole experimentally deformed by simple shear

Seismic anisotropy has been widely observed in the crust and mantle due to the crystal preferred orientation (CPO) of highly anisotropic minerals such as amphibole, though it is poorly constrained. Here, the authors present an experimental study showing that three CPOs exist depending on temperature and stress.

Byeongkwan Ko
Haemyeong Jung
ResearchOpen Access10 Apr 2015
Nature Communications

Volume: 6, P: 1-10
Intermediate-depth earthquake faulting by dehydration embrittlement with negative volume change

Haemyeong Jung
Harry W. Green II
Larissa F. Dobrzhinetskaya
Research01 Apr 2004
Nature

Volume: 428, P: 545-549
The stability of subducted glaucophane with the Earth’s secular cooling

Along the cold subduction geotherm, glaucophane remains stable down to pressure and temperature (P–T) conditions of ca. 240 km depth, whereas under the warm subduction geotherm, it dehydrates and breaks down into pyroxenes and silica between ca. 50 and 100 km depths.

Yoonah Bang
Huijeong Hwang
Yongjae Lee
ResearchOpen Access05 Mar 2021
Nature Communications

Volume: 12, P: 1-7
A role for subducted albite in the water cycle and alkalinity of subduction fluids

Albite is one of the major constituents in the Earth’s crust. Here, the authors report that under hydrous cold subduction conditions, albite undergoes breakdown into hydrated smectite and other phases, which release alkaline fluids into the mantle wedge.

Gil Chan Hwang
Huijeong Hwang
Yongjae Lee
ResearchOpen Access19 Feb 2021
Nature Communications

Volume: 12, P: 1-7
Impact of chlorite dehydration on intermediate-depth earthquakes in subducting slabs

Dehydration of chlorite accompanied by partial melting could explain the double seismic zone of intermediate-depth earthquakes observed within subducting slabs at many subduction zones, according to high-pressure, high-temperature laboratory experiments

Dohyun Kim
Haemyeong Jung
Jungjin Lee
ResearchOpen Access26 Dec 2023
Communications Earth & Environment

Volume: 4, P: 1-8

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