湖南科技大学学报（自然科学版）
湖南科技大學學報（自然科學版）
호남과기대학학보（자연과학판）
JOURNAL OF HUNAN UNIVERSITY OF SCIENCE & TECHNOLOGY（NATURAL SCIENCE EDITION）
2014年
1期
12-18
,共7页
鹤岗:粘土岩夹矸%似累托石%成因
鶴崗:粘土巖夾矸%似纍託石%成因
학강:점토암협안%사루탁석%성인
Hegang%claystone parting%rectorite-like%origin
运用X射线衍射分析、傅里叶红外光谱分析以及热重-热流分析等手段，对黑龙江鹤岗地区侏罗系上统石头河子组的含煤地层粘土岩夹矸中的似累托石进行了矿物学的研究．结果表明：研究区18＃煤夹矸中含有70％～97％的似累托石，d（001）＝2．659～2．696 nm，其他各基面衍射峰与d（001）基本呈整数倍关系，与累托石不同的是其各基面衍射峰半高宽相差较大，d（060）较累托石宽缓．似累托石与累托石和普通不规则伊蒙间层矿物之间的矿物特征差异表明似累托石并不是累托石而是介于累托石与不规则伊/蒙间层之间的过渡矿物．研究区似累托石的50～200℃低温吸热复谷表明其中的蒙脱石晶层为Ca-蒙脱石，870 cm-1附近的Fe-OH弯曲振动吸收带和474 cm-1附近的Si-O-Fe振动吸收带以及529℃左右脱羟基吸热谷均表明似累托石晶层中的一部分八面体Al和Mg被Fe所替代．研究区似累托石属于成岩作用成因，形成温度在120～140℃．
運用X射線衍射分析、傅裏葉紅外光譜分析以及熱重-熱流分析等手段，對黑龍江鶴崗地區侏囉繫上統石頭河子組的含煤地層粘土巖夾矸中的似纍託石進行瞭礦物學的研究．結果錶明：研究區18＃煤夾矸中含有70％～97％的似纍託石，d（001）＝2．659～2．696 nm，其他各基麵衍射峰與d（001）基本呈整數倍關繫，與纍託石不同的是其各基麵衍射峰半高寬相差較大，d（060）較纍託石寬緩．似纍託石與纍託石和普通不規則伊矇間層礦物之間的礦物特徵差異錶明似纍託石併不是纍託石而是介于纍託石與不規則伊/矇間層之間的過渡礦物．研究區似纍託石的50～200℃低溫吸熱複穀錶明其中的矇脫石晶層為Ca-矇脫石，870 cm-1附近的Fe-OH彎麯振動吸收帶和474 cm-1附近的Si-O-Fe振動吸收帶以及529℃左右脫羥基吸熱穀均錶明似纍託石晶層中的一部分八麵體Al和Mg被Fe所替代．研究區似纍託石屬于成巖作用成因，形成溫度在120～140℃．
운용X사선연사분석、부리협홍외광보분석이급열중-열류분석등수단，대흑룡강학강지구주라계상통석두하자조적함매지층점토암협안중적사루탁석진행료광물학적연구．결과표명：연구구18＃매협안중함유70％～97％적사루탁석，d（001）＝2．659～2．696 nm，기타각기면연사봉여d（001）기본정정수배관계，여루탁석불동적시기각기면연사봉반고관상차교대，d（060）교루탁석관완．사루탁석여루탁석화보통불규칙이몽간층광물지간적광물특정차이표명사루탁석병불시루탁석이시개우루탁석여불규칙이/몽간층지간적과도광물．연구구사루탁석적50～200℃저온흡열복곡표명기중적몽탈석정층위Ca-몽탈석，870 cm-1부근적Fe-OH만곡진동흡수대화474 cm-1부근적Si-O-Fe진동흡수대이급529℃좌우탈간기흡열곡균표명사루탁석정층중적일부분팔면체Al화Mg피Fe소체대．연구구사루탁석속우성암작용성인，형성온도재120～140℃．
The mineralogical characteristics of the rectorites -like occurred in coal parting of Shitouhezi Formation of upper Jurassic in Heilongjiang Province,were studied by XRD,IR and TGA-DSC analysis.The results indicated that the rectorites-like proportion in the partings of NO.18 Coal in the research area is ranged from 70%to 97%,and d(001)is between 2.659 nm and 2.696 nm,which is the multiples of other basal diffraction spacings,but the FWHM of all the basal diffraction spacings have large difference and d(060) was much wider, which is different from that of rectorites.The significant mineralogical difference between rectorite -like and rectorite and irregular smectie illite interlayer indicated that the former is the transitional mineral between the two laters.The lower temperature endothermal multi-peak of the rectorites-like between 50℃and 200℃indicated that the rectorite-like layers are rich in Ca.Fe-OH bending vibration absorption band at 870 cm-1 ,Si-O-Fe vibration absorption band at 474 cm-1 and the dehydroxylation endothermal peak of rectorite-like layers at 529 ℃indicated that some octahedral Al and Mg are substituted by Fe.The rectorites-like in research area were resulted from diagenesis,the forming temperature of which was between 120 ℃and 140 ℃.
