TY - JOUR

T1 - Symmetry and Structural Complexity of Minerals of Deep Geospheres of the Earth (Pyrolite Model)

AU - Krivovichev, S.V.

N1 - Export Date: 10 November 2024 Сведения о финансировании: Russian Science Foundation, RSF, 24-17-00083 Сведения о финансировании: Russian Science Foundation, RSF Текст о финансировании 1: This work was supported by the Russian Science Foundation, grant no. 24-17-00083, https://rscf.ru/project/24-17-00083/ .

PY - 2024/10/30

Y1 - 2024/10/30

N2 - Abstract: Using the Dolivo-Dobrovol’sky index and information-based parameters on the basis of new experimental data, the problem of the symmetry and structural complexity of the mineral substance of the deep geospheres is considered in the framework of the pyrolite model of the Earth’s mantle. It is shown that, in contrast to the previously made conclusions about the increase in the symmetry of minerals with depth, the behavior of the quantitative parameters of symmetry and structural complexity is nonlinear. The symmetry increases (and the structural complexity decreases) to the boundary of the decomposition of ringwoodite into bridgmanite and magnesiowustite (660 km), after which there is a decrease in the Dolivo-Dobrovol’sky index to 18.40 and an increase of the atomic parameter of structural complexity to 2.786 bits/atom. This behavior is determined by the uneven and opposing effect of temperature and pressure on the symmetry and structural complexity of the crystalline substance, which is caused by the nonlinear nature of the averaged geothermal gradient of the Earth’s crust and mantle. The information-based parameters of structural complexity are a more sensitive indicator of symmetry than the Dolivo-Dobrovol’sky index, which is related to the former taking into account the features of the crystal structure of particular minerals. © Pleiades Publishing, Ltd. 2024. ISSN 1028-334X, Doklady Earth Sciences, 2024. Pleiades Publishing, Ltd., 2024.

AB - Abstract: Using the Dolivo-Dobrovol’sky index and information-based parameters on the basis of new experimental data, the problem of the symmetry and structural complexity of the mineral substance of the deep geospheres is considered in the framework of the pyrolite model of the Earth’s mantle. It is shown that, in contrast to the previously made conclusions about the increase in the symmetry of minerals with depth, the behavior of the quantitative parameters of symmetry and structural complexity is nonlinear. The symmetry increases (and the structural complexity decreases) to the boundary of the decomposition of ringwoodite into bridgmanite and magnesiowustite (660 km), after which there is a decrease in the Dolivo-Dobrovol’sky index to 18.40 and an increase of the atomic parameter of structural complexity to 2.786 bits/atom. This behavior is determined by the uneven and opposing effect of temperature and pressure on the symmetry and structural complexity of the crystalline substance, which is caused by the nonlinear nature of the averaged geothermal gradient of the Earth’s crust and mantle. The information-based parameters of structural complexity are a more sensitive indicator of symmetry than the Dolivo-Dobrovol’sky index, which is related to the former taking into account the features of the crystal structure of particular minerals. © Pleiades Publishing, Ltd. 2024. ISSN 1028-334X, Doklady Earth Sciences, 2024. Pleiades Publishing, Ltd., 2024.

KW - deep geospheres of the Earth

KW - information

KW - mantle geotherm

KW - mineralogy

KW - pressure

KW - structural complexity

KW - symmetry

KW - temperature

KW - Miocene

KW - Structural geology

KW - Deep geosphere of the earth

KW - Geospheres

KW - Information

KW - Magnesiowustite

KW - Mantle geotherm

KW - Pyrolite

KW - Quantitative parameters

KW - Ringwoodite

KW - Structural complexity

KW - Symmetry

KW - Crystal symmetry

UR - https://www.mendeley.com/catalogue/99208d0f-0117-3149-aec8-7030148ba74c/

U2 - 10.1134/s1028334x24603791

DO - 10.1134/s1028334x24603791

M3 - статья

JO - Doklady Earth Sciences

JF - Doklady Earth Sciences

SN - 1028-334X

ER -