Object source analysis method based on measured Dpar value

Abstract

The invention provides a material source analysis method based on measurement of a Dpar value. The method comprises the following steps: measuring fission track Dpar values of samples in a deposition area and a source area; then grouping the obtained Dpar values by adopting a multi-dimensional scaling analysis method to obtain grouped data, and constructing a sedimentary area-source area coupling model by taking the Dpar values as parameters and matching the grouped data with the same Dpar value characteristics of the sedimentary area and the source area, so that the object source area and the rock type thereof can be accurately delineated, the sediment source can be determined, and the object source analysis is more accurate and credible. According to the material source analysis method, the material source analysis result can be accurately obtained only by measuring the Dpar value of the sample, thermal neutron irradiation does not need to be carried out on the sample in the Dpar value measuring process, and the time consumption for obtaining the Dpar value is short; the defect that in the traditional material source analysis process of measuring the fission track age, an analysis sample needs to be sent to an atomic nuclear reactor for thermal neutron irradiation or the irradiation time is long, and radioactivity exists is effectively overcome.

Description

technical field [0001] The invention relates to the technical field of provenance analysis, in particular to a provenance analysis method based on measuring Dpar value. Background technique [0002] At present, there are sedimentological methods, petrological and mineralogical methods, elemental geochemical methods, geochronological methods, clay mineralogy methods, fission track methods, fossil and biomarker compound methods, and geophysical methods and other provenance analysis techniques. These methods all have some limitations and affect the accuracy of provenance analysis. For example, sedimentological methods have a large statistical workload and fuzzy provenance judgment results, and cannot determine the specific information such as the specific location of the provenance area and the nature of the parent rock. The judgment of provenance is affected by experience and many random factors; the mineralogy method is greatly affected by hydrodynamics and diagenesis; the el...

AI Technical Summary

Problems solved by technology

The fission track method needs to send the sample to the nuclear reaction for thermal neutron irradiation. Domestic thermal neutron irradiation conditions are relatively lacking and it takes a very long time, while sending the sample abroad for irradiation is subject to many constraints from foreign institutions, and after irradiation The samples need to be placed for a long time until the radioactivity of the radiation weakens, and the next step can only be performed after it is harmless to the human body. The experiment period is long and the time cost is high.

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