上海地质
上海地質
상해지질
2006年
2期
63~66
,共null页
红外吸收光谱 X射线粉晶衍射 纤蛇纹石 叶蛇纹石
紅外吸收光譜 X射線粉晶衍射 纖蛇紋石 葉蛇紋石
홍외흡수광보 X사선분정연사 섬사문석 협사문석
serpentine cat's eye samples IR XRD chrysotile chrysotile
采用Fourier变换红外吸收光谱和X射线粉晶衍射技术对四川石棉县蛇纹石猫眼进行了研究。红外吸收光谱结果表明:四川蛇纹石猫眼可分为纤蛇纹石和叶蛇纹石两种类型,两者在(960—1100)cm^-1和(3600—3690)cm^-1的范围内由Si-O伸缩振动的E1类振动和OH伸缩振动表现出的红外谱带分裂强度及谱带特征存在明显的差异。在(960—1100)cm^-1间:纤蛇蚊石的红外光谱分裂成三个明显的谱带,而叶蛇纹石在此区间只有两条谱带。在570cm^-1附近的红外谱带以肩状出现;OH伸缩振动区:纤蛇蚊石出现两条红外谱带,而叶蛇蚊石只出现一条红外谱带。X射线粉晶衍射结果表明:叶蛇蚊石具有d202=0.2522nm(I/I0=19)和d203=0.2430nm(I/I0=18)的特征谱线,而纤蛇纹石则具有d202、006=0.2446nm(I/I0=29)的特征谱线,d020〉0.245nm近0.249nm的特征谱线缺失。
採用Fourier變換紅外吸收光譜和X射線粉晶衍射技術對四川石棉縣蛇紋石貓眼進行瞭研究。紅外吸收光譜結果錶明:四川蛇紋石貓眼可分為纖蛇紋石和葉蛇紋石兩種類型,兩者在(960—1100)cm^-1和(3600—3690)cm^-1的範圍內由Si-O伸縮振動的E1類振動和OH伸縮振動錶現齣的紅外譜帶分裂彊度及譜帶特徵存在明顯的差異。在(960—1100)cm^-1間:纖蛇蚊石的紅外光譜分裂成三箇明顯的譜帶,而葉蛇紋石在此區間隻有兩條譜帶。在570cm^-1附近的紅外譜帶以肩狀齣現;OH伸縮振動區:纖蛇蚊石齣現兩條紅外譜帶,而葉蛇蚊石隻齣現一條紅外譜帶。X射線粉晶衍射結果錶明:葉蛇蚊石具有d202=0.2522nm(I/I0=19)和d203=0.2430nm(I/I0=18)的特徵譜線,而纖蛇紋石則具有d202、006=0.2446nm(I/I0=29)的特徵譜線,d020〉0.245nm近0.249nm的特徵譜線缺失。
채용Fourier변환홍외흡수광보화X사선분정연사기술대사천석면현사문석묘안진행료연구。홍외흡수광보결과표명:사천사문석묘안가분위섬사문석화협사문석량충류형,량자재(960—1100)cm^-1화(3600—3690)cm^-1적범위내유Si-O신축진동적E1류진동화OH신축진동표현출적홍외보대분렬강도급보대특정존재명현적차이。재(960—1100)cm^-1간:섬사문석적홍외광보분렬성삼개명현적보대,이협사문석재차구간지유량조보대。재570cm^-1부근적홍외보대이견상출현;OH신축진동구:섬사문석출현량조홍외보대,이협사문석지출현일조홍외보대。X사선분정연사결과표명:협사문석구유d202=0.2522nm(I/I0=19)화d203=0.2430nm(I/I0=18)적특정보선,이섬사문석칙구유d202、006=0.2446nm(I/I0=29)적특정보선,d020〉0.245nm근0.249nm적특정보선결실。
FTIR absorption spectra and XRD were used to study serpentine cat's eye from Sichuan province in this paper. The results indicate that serpentine cat's eyes includes two types: chrysotile and antigorite, which have the characteristic bands in the Si - O Stretching vibration region around (960 - 1100 ) cm^-1 and OH Stretching vibration region around ( 3600 - 3690 ) cm^-1 respectively. Around ( 960 - 1100 ) cm^-1, chrysotile displays three bands of absorption, while antigorite only has two bands. Upon 570cm^-1, antigorite shows a shoulder absorption band. XRD shows that antigorite is characterized by the lines d202 =0. 2522nm (I/I0= 19) and d2o3 =0. 2430nm (I/I0 = 18 ) ,while chrysotile only has the line d202,006 = 0. 2446nm .( I/I0 =29) without the line near d020 =0. 250nm.