Determination of Elemental Composition and Content in Stream Sediments by Laser-Induced Breakdown Spectroscopy
نویسندگان
چکیده
The stream sediment (SS) records evolution information of the water system structure and sedimentary environment in specific regions during different geological periods, which is great significance for studying ancient planetary law changes. Based on SS geographical environments Earth, remote laser-induced breakdown spectroscopy (remote-LIBS) technology combined with multidimensional scaling-back propagation neural network (MDS-BPNN) algorithm was used to conduct an in-depth analysis qualitative quantitative detection elemental composition content SS. results show that based LIBS artificial can achieve ideal major trace elements. coefficients determination (R2) test set elements greater than 0.9996, root mean square error (RMSE) less 0.7325. 0.9837, 42.21. In addition, application scenario exploring extraterrestrial life, biominerals represented by stromatolite phosphorite (SP) are easy form sand enter into under weathering. Therefore, this paper discusses feasibility using remote-LIBS detect identify such minerals disappearance SPs’ macro- micro-characteristics. From our research, we find preferred candidate discovering dust-covered biominerals. rich rocks, as Mars’ riverbeds, crucial deciphering “life signals” hidden Martian sand.
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ژورنال
عنوان ژورنال: Chemosensors
سال: 2023
ISSN: ['2227-9040']
DOI: https://doi.org/10.3390/chemosensors11070377