A kind of preparation method of high-titanium and high-water mafic olivine single crystal

Abstract

The invention discloses a preparation method of a high-titanium and high-water mafic olivine single crystal, which comprises: according to the stoichiometry of mafite III) powder, liquid ethyl orthosilicate and liquid tetrabutyl titanate as initial raw materials to prepare a mixture cylinder sample; use solid natural talc powder and solid natural brucite powder as starting materials to prepare weights The water source disc of the mixture of talc and brucite with a ratio of 10:1; the water source disc is placed on both ends of the mixture cylinder sample; the mixture cylinder sample and the water source disc are put into a gold-palladium alloy sample tube for high temperature and high pressure reaction to prepare High-titanium and high-water mafic olivine single crystal; solves the current gap in the preparation technology of high-titanium and high-water Martian mantle mafic olivine to obtain large-particle high-titanium and high-water mafic olivine Single crystal experimental samples.

Description

technical field [0001] The invention belongs to the technical field of mineral single crystal sample synthesis under high temperature and high pressure conditions, and particularly relates to a preparation method of a high titanium and high water content mafic olivine single crystal. Background technique [0002] With the rapid development of human science and the continuous innovation of technology, many countries in the world have set off an upsurge in deep space exploration; human beings have greatly improved the internal material formation, circle structure and evolution history of Mars. Previous studies on the internal structure of Mars show that the interior of Mars has a layered structure: the Martian crust (referring to the depth of the interior of Mars from the surface to 60km, the corresponding pressure and temperature: 0-0.6GPa and 210-366K), the Martian mantle (referring to The inner depth of Mars is from 60km to 1596km, the corresponding pressure and temperature...

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Problems solved by technology

[0005] In summary, whether the natural olivine is collected from the natural olivine in the upper mantle of the earth (containing 50ppm wt% of titanium and containing 100-200ppm wt% of water), or adopting the natural olivine of the upper mantle of the moon (containing 2000-3000ppm wt% Titanium and anhydrous), or the experimental samples of titanium-containing olivine (containing <2100ppm wt% titanium and containing <1000ppmwt% water) synthesized by the prior art laboratory cannot meet the requirements of the Martian mantle forsterite (containing 3000-4000ppm wt% of titanium and 2000-3000ppm wt% of water) meet the scientific research needs of various high-temperature and high-pressure laboratory simulations, so we need to invent a preparation of a high-titanium and high-water-containing forsterite single crystal method