光谱学与光谱分析
光譜學與光譜分析
광보학여광보분석
SPECTROSCOPY AND SPECTRAL ANALYSIS
2014年
8期
2076-2080
,共5页
易泽邦%曹建劲%罗松英%王正阳%廖宜鹏
易澤邦%曹建勁%囉鬆英%王正暘%廖宜鵬
역택방%조건경%라송영%왕정양%료의붕
平通地震带%土壤%近红外光谱%粘土矿物%成土环境
平通地震帶%土壤%近紅外光譜%粘土礦物%成土環境
평통지진대%토양%근홍외광보%점토광물%성토배경
Pingtong seismic zone%Soil%Near infrared spectrum%Clay minerals%Pedogenic environment
在四川省平武县平通镇的512地震地表破裂带中采集黄色土壤样品，采用现代近红外光谱分析技术进行分析测试。通过对土壤中的矿物微粒特征吸收峰的快速鉴别，表明土壤样品主要由方解石、白云石、白云母、绢云母、伊利石、蒙脱石、滑石、透闪石、阳起石、绿泥石等矿物组成，其矿物成分与四川地区分布的黄壤成分基本一致。分析对比发现，土壤中的部分矿物与破裂带下部岩体的矿物组成特征相符合，说明该破裂带中的部分土壤矿物的演化与该地区岩石的矿物组成密切相关；地表破裂带土壤中的粘土矿物组成与北方的马兰黄土相似，推测这两种土壤中的粘土矿物可能具有相似的成因。研究结果说明近红外土壤矿物的分析技术可以有效分析土壤中的矿物微粒、指示成土环境，从而论证了将近红外光谱分析技术应用于土壤矿物的快速分析、地质研究的可行性。同时研究结果可以成为该地区土壤矿物分析的基础，为以后的土壤矿物以及地震破裂带的研究提供新的思路和方法。
在四川省平武縣平通鎮的512地震地錶破裂帶中採集黃色土壤樣品，採用現代近紅外光譜分析技術進行分析測試。通過對土壤中的礦物微粒特徵吸收峰的快速鑒彆，錶明土壤樣品主要由方解石、白雲石、白雲母、絹雲母、伊利石、矇脫石、滑石、透閃石、暘起石、綠泥石等礦物組成，其礦物成分與四川地區分佈的黃壤成分基本一緻。分析對比髮現，土壤中的部分礦物與破裂帶下部巖體的礦物組成特徵相符閤，說明該破裂帶中的部分土壤礦物的縯化與該地區巖石的礦物組成密切相關；地錶破裂帶土壤中的粘土礦物組成與北方的馬蘭黃土相似，推測這兩種土壤中的粘土礦物可能具有相似的成因。研究結果說明近紅外土壤礦物的分析技術可以有效分析土壤中的礦物微粒、指示成土環境，從而論證瞭將近紅外光譜分析技術應用于土壤礦物的快速分析、地質研究的可行性。同時研究結果可以成為該地區土壤礦物分析的基礎，為以後的土壤礦物以及地震破裂帶的研究提供新的思路和方法。
재사천성평무현평통진적512지진지표파렬대중채집황색토양양품，채용현대근홍외광보분석기술진행분석측시。통과대토양중적광물미립특정흡수봉적쾌속감별，표명토양양품주요유방해석、백운석、백운모、견운모、이리석、몽탈석、활석、투섬석、양기석、록니석등광물조성，기광물성분여사천지구분포적황양성분기본일치。분석대비발현，토양중적부분광물여파렬대하부암체적광물조성특정상부합，설명해파렬대중적부분토양광물적연화여해지구암석적광물조성밀절상관；지표파렬대토양중적점토광물조성여북방적마란황토상사，추측저량충토양중적점토광물가능구유상사적성인。연구결과설명근홍외토양광물적분석기술가이유효분석토양중적광물미립、지시성토배경，종이론증료장근홍외광보분석기술응용우토양광물적쾌속분석、지질연구적가행성。동시연구결과가이성위해지구토양광물분석적기출，위이후적토양광물이급지진파렬대적연구제공신적사로화방법。
Through modern near infrared spectrum,the authors analyzed the yellow soil from the rupture zone located in Ping-tong town,Pingwu,Sichuan province.By rapid identification of the characteristic of peak absorption of mineral particles,the re-sult shows that the soil samples mainly composed of calcite,dolomite,muscovite,sericite,illite,smectite,talc,tremolite,ac-tinolite,chlorite,etc.And the mineral compositions of the soil is basically the same with the yellow soil in Sichuan region.By analyzing and comparing it was revealed that part of mineral compositions of the soil are in accordance with the characteristics of the rock mineral compositions below the rupture zone,indicating that part of the minerals of the soil’s evolution is closely related to the rock compositions in this area;and the compositions of the clay mineral in the rupture zone is similar to the Ma Lan loess in the north of China,so it is presumed that the clay minerals in these two kinds of soil have the same genetic type.The charac-teristic of the mineral composition of the soil is in accordance with evolution characteristics of the rocks which is bellow the rup-ture zone,also it was demonstrated that the results of soil minerals near-infrared analysis can effectively analyze the mineral par-ticles in the soil and indicate the pedogenic environment.Therefore,the result shows the feasibility of adopting modern near-nfrared spectrum for rapid analysis of mineral particles of the soil and research of geology.Meanwhile,the results can be the foundation of this region’s soil mineral analysis,and also provide new ideas and methods for the future research of soil minerals and the earthquake rupture zone.
