结合拉曼光谱主成分分析-线性判别进行蛇纹石玉产地溯源的探索  

An Exploration of Geographic Determination of Serpentine Jade by Raman Spectroscopy Combined With Principal Component Analysis and Linear Discriminant Analysis

作　　者：叶旭 杨炯 丘志力[1,2] 岳紫龙 YE Xu;YANG Jiong;QIU Zhi-li;YUE Zi-long(Institute of Jewelry and Jade Carving,Nanyang Normal University,Nanyang 473061,China;School of Earth Science and Engineering,Sun Yat-sen University,Guangdong Provincial Key Lab of Geological Processes and Mineral Resource Survey,Guangzhou 510275,China;School of Tourism,Taishan University,Research Institute of Taishan,Taian 271000,China)

机构地区：[1]南阳师范学院珠宝玉雕学院,河南南阳473061 [2]中山大学地球科学与工程学院,广东省地球动力作用与地质灾害重点实验室,广东广州510275 [3]泰山学院旅游学院,泰山研究院,山东泰安271000

出　　处：《光谱学与光谱分析》2024年第9期2551-2558,共8页Spectroscopy and Spectral Analysis

基　　金：南阳市科技攻关计划项目(KJGG092);山东省自然科学基金项目(ZR2015DM008);南阳师范学院理工科校级科研项目(2023QN021);国家自然科学基金项目(41673032)资助。

摘　　要：蛇纹石是中国最早使用的玉石之一,开展蛇纹石玉的产地溯源探索,对认识中国古代玉文化发展历程,重建古代玉石贸易路线均有重要的意义。但由于蛇纹石玉产地众多,目前尚没有成熟的蛇纹石玉产地溯源的判别技术。以产自陕西汉中、甘肃敦煌、河南栾川、辽宁岫岩、山东泰安、甘肃武山6地的蛇纹石玉为研究对象,在66块样品上共采集到200个高质量拉曼光谱数据,并在对测试结果进行主成分分析(PCA)的基础上建立了线性判别分析(LDA)的产地判别模型。结果显示,不同产地蛇纹石玉的矿物组成有所差异,汉中蛇纹石玉的主要矿物成分有纤蛇纹石和利蛇纹石两种;敦煌蛇纹石玉则为纤蛇纹石和利蛇纹石的均匀混合型;泰安蛇纹石玉的主要矿物成分有利蛇纹石(墨玉)和叶蛇纹石(碧玉和翠斑玉)两种;河南栾川、辽宁岫岩、甘肃武山蛇纹石玉的主要矿物成分均为叶蛇纹石。在严格控制实验条件的前提下,将拉曼光谱数据结合PCA+LDA分析可以对不同产地的蛇纹石玉进行区分,所建立的LDA判别模型的训练集数据和测试集数据的产地判别正确率分别达到了96.25%和92.50%。这显示出利用无损检测拉曼光谱技术进行蛇纹石玉产地溯源具有潜在价值。将拉曼光谱无损检测数据结合统计学或机器学习方法来构建判别模型可能是解决蛇纹石玉产地溯源瓶颈新的技术路径。Serpentine is one of the earliest jade used in China.Identifying the origin of serpentine jade is of great significance to understanding the development of Chinese ancient jade culture and rebuilding the ancient jade trade route.However,due to the large number of sources of serpentine jade,there is still no proven technology to identify the geographic determination of serpentine jade.In this paper,serpentine jade from Hanzhong,Shaanxi;Dunhuang,Gansu;Luanchuan,Henan;Xiuyan,Liaoning;Tai'an,Shandong,and Wushan,Gansu were studied.A Linear Discriminant Analysis(LDA)model was established based on Principle Component Analysis(PCA)of 200high-quality Raman data collected from 66samples.The results show that the mineral compositions of serpentine jade from the six regions differ.The main mineral compositions of serpentine jade in Hanzhong are chrysotile and lizardite.Dunhuang serpentine jade is a homogeneous mixture of chrysotile and serpentite.The main mineral composition of Tai'an serpentine jade includes lizardite(Mojade)and antigorite(Bijade and Cuibanjade).The main mineral composition of serpentine jade in Luanchuan,Xiuyan,and Wushan areall antigorite.Under the premise of strictly controlling the experimental conditions,the Raman spectrum data combined with PCA+LDA analysis can distinguish serpentine jade from different origins.The established LDA model's correct rate of origin discrimination is 96.25%and 92.50%for training and test data,respectively.There sult shows the potential value of tracing the origin of serpentine jade by nondestructive Raman spectroscopy.Combining Raman spectroscopy data with statistics or machine learning methods to build a discriminant model may be a new technical path to solve the serpentine jade origin traceability bottleneck.

关 键 词：蛇纹石玉 拉曼光谱 产地溯源 主成分分析(PCA) 线性判别分析(LDA) 

分 类 号：P575.4[天文地球—矿物学]