8 results about "Basalt" patented technology

This invention relates to the field of physical similarity simulation technology, specifically providing a physical simulation method for the formation process of lunar lava tube structures. The method involves preparing a simulated melt that meets the rheological and thermodynamic similarity criteria of basaltic lava by mixing thermoplastic materials with condensation additives. The low-gravity effect, high-vacuum environment, and radiative cooling conditions under lunar conditions are reproduced using inclined flow channels and thermal vacuum cavities. By precisely matching dimensionless parameters such as Peckley number, dimensional temperature, and Rayleigh number, the injection rate, flow channel inclination angle, and target ambient temperature of the simulated melt are determined. Under these conditions, controlled melt flow and surface solidification crust formation are simulated, ultimately forming a cavity structure model. This allows for the physical study of the formation process of lunar lava tube structures. This invention can accurately reproduce the dynamic crust formation and cavity formation process of lava flow under extreme lunar conditions, providing a quantitative experimental data basis for the study of the formation mechanism of lunar lava tubes and their engineering applications.

The invention discloses a carbon sequestration method applying a basalt geochemical weathering mechanism and application, and belongs to the field of soil conditioning. The method comprises the following steps: S1, arranging a sensor array in a target area, measuring soil pH, total nitrogen amount Nt, temperature and humidity, calculating soil carbon index data, and determining a carbon sequestration demand; the soil carbon index data comprises soil CO2 concentration Cs, basalt carbon sequestration Mc and soil total carbon content Ct; s2, the basalt is crushed; performing decomposition treatment on the organic fertilizer; crushing and sieving the functional auxiliary materials as required; s3, based on the carbon index data in the step S1, determining the basic ratio of each raw material in the carbon sequestration fertilizer, adjusting the ratio in a differentiated manner, mixing all the raw materials, granulating, and drying; s4, a fertilization mode is selected according to the difference of soil texture, the application amount is determined according to the total carbon content Ct of the soil, the CO2 concentration Cs of the soil is monitored regularly, and basalt is supplemented according to needs; the problems of high cost and serious pollution in the prior art are solved.

The invention discloses a method for estimating the thickness of a hidden lunar sea by combining a surface covering layer and Gaussian correction, and the method comprises the steps: introducing the surface covering layer to construct a three-layer structure model which comprises the surface covering layer, a basalt layer and a shell layer, so as to simulate an internal structure of a hidden lunar sea region which is closer to a real condition; meanwhile, a Gaussian function is used for further correcting the abnormal nonlinear change of the density spectrum, and according to the established three-layer density structure model, the effective density function of the model of different layer densities is determined. And finally, based on the obtained theoretical effective density spectrum and the model effective density spectrum, realizing inversion of the thickness of the basalt layer in the hidden lunar sea area on the moon by using a Bayesian function and MCMC. According to the method, more constraints are introduced, so that the fitting effect of a model value and an observation value is better, the blank that a traditional density structure model is poor in parameter inversion of the thickness of the basalt in the hidden lunar sea area is filled up, and the thickness distribution of the whole-moon hidden lunar sea basalt inverted by the method is important data supplement for deeply researching the internal structure and thermal evolution of a planet.

The invention relates to the technical field of geological sequestration and environmental remediation, and particularly discloses a simulation experiment device and method for CO2 leakage of a basalt-soil remediation shallow earth surface, the device comprises a composite reaction module, a CO2 leakage simulation module and a monitoring module, the composite reaction module comprises a reaction cabin, a temperature control device and a humidity control device are arranged in the reaction cabin; a plurality of distributed injection holes are formed in the bottom of the reaction cabin; the CO2 leakage simulation module comprises a CO2 gas source communicated with the distributed injection hole and a mass flow controller arranged at the gas outlet end of the CO2 gas source; the monitoring module comprises a CO2 gas concentration sensor and a plurality of resistivity sensors. By designing the layered multi-physics field coupling reactor, temperature, pressure and seepage fields under real geological conditions are simulated, quantitative evaluation of CO2 absorption efficiency is achieved, the limitation that single carbon fixing efficiency reflects the repairing effect is overcome, and an experimental paradigm is provided for geological sequestration shallow earth surface leakage repairing.

A system and method for quantifying carbon mineralization in basalt during carbon sequestration includes the steps of: obtaining initial conditions at a geological site, including establishing initial ratio conditions for at least two isotope systems; determining the subsequent state after the initiation of carbon dioxide source injection at the geological site; and determining the characteristics of mineralization by performing multi-isotope fractionation analysis using the subsequent state and initial conditions.

The application discloses a kind of lunar basalt bright temperature feature optimization and geological unit classification method, comprising: obtaining the characteristic image of lunar surface different frequency noon bright temperature and midnight bright temperature, and extracting bright temperature difference feature;Combining artificial interpretation and existing geological map calibration research sample;Propose a kind of bright temperature feature optimization method;Optimized bright temperature feature is processed by principal component analysis dimension reduction, and the redundancy of bright temperature feature is reduced;Supervised classification is carried out to the geological structure in the dimension-reduced bright temperature data using random forest model, and the geological structure diagram is obtained;Bright temperature feature is recombined according to frequency and acquisition time and bright temperature difference respectively, and supervised classification is carried out respectively, to further clarify the specific role of each bright temperature feature in the classification process.The method effectively fills the blank of the existing lunar bright temperature feature on basalt geological unit classification and the contribution of the research, and provides a unified guidance research scheme for the optimization method of lunar bright temperature feature.

The invention discloses a diving system basalt carbon emission estimation method and system, and relates to the technical field of earth science and environmental scientificity, the method comprises the following steps: obtaining and processing basic geological data of basalt in a volcanic area of a target area, and obtaining field basalt eruption volume and basalt weathering degree information; carrying out field sampling and experiment to obtain experimental data; calculating the CO2 concentration in the basalt magma, and calculating the carbon emission of the activity of the basalt magma; calculating to obtain the basalt weathering carbon consumption rate; and constructing an evaluation model of the influence of the basalt carbon emission on the paleoclimate environment under the diving system, simulating to obtain a change relation of the regional air temperature along with the CO2 concentration after the magma activity, and determining the influence of the basalt magma carbon emission on the climatic change in combination with the carbon emission of the basalt magma activity. According to the method, accurate quantification of the basalt carbon emission can be realized, and the influence of the basalt carbon emission on the environment can be accurately evaluated.