安徽凤阳石英岩发育土壤的磁学性质及环境磁学意义
|
摘要
通过对安徽凤阳石英岩发育土壤典型剖面的磁学参数测量,结果表明,A层和B层中的磁性矿物含量明显高于C层,且A层和B层中磁性矿物的粒度明显比C层细。C层的磁学性质由磁铁矿主导,A层和B层的磁学性质由磁赤铁矿主导。磁赤铁矿是石英岩在成土过程中形成的次生矿物。土壤中磁赤铁矿的出现及含量的变化指示成土作用的强弱。石英岩的磁性对土壤的磁性影响甚小,而成土作用和生物作用对土壤磁性增强起到了主要作用。
Mineral magnetic parameters were measured on typical soil section derived from quartz in Fengyang County,Anhui Province.Results showed that the contents of magnetic minerals in A layer and B layer were obviously higher than C layer,and the particle sizes of magnetic minerals in A layer and B layer were obviously smaller than C layer.Magnetite dominated magnetic properties of C layer but maghemite dominated A layer and B layer.Maghemite was secondary mineral formed in the process of pedogenesis.The appearance of maghemite in soil and the change of its content can reflect process of pedogenesis.The magnetic enhancement of soil showed that quartzite magnetism had little influences to the magnetism of soil,but pedogenesis and biological action influenced it obviously.
Mineral magnetic parameters were measured on typical soil section derived from quartz in Fengyang County,Anhui Province.Results showed that the contents of magnetic minerals in A layer and B layer were obviously higher than C layer,and the particle sizes of magnetic minerals in A layer and B layer were obviously smaller than C layer.Magnetite dominated magnetic properties of C layer but maghemite dominated A layer and B layer.Maghemite was secondary mineral formed in the process of pedogenesis.The appearance of maghemite in soil and the change of its content can reflect process of pedogenesis.The magnetic enhancement of soil showed that quartzite magnetism had little influences to the magnetism of soil,but pedogenesis and biological action influenced it obviously.
引文
[1]Thompon R,Oldfeld F.Environmental Magnetism[M].London:Allen and Unwin,1986
[2]卢升高,俞劲炎.土壤磁学及其应用研究进展[J].土壤学进展,1991,19(5):1-8
[3]俞劲炎,詹硕仁,吴劳生,朱祖祥.热带亚热带土壤的磁化率[J].土壤学报,1986,23(1):50-56
[4]Leborgne E.Anomalous magnetic susceptibility of topsoil(in French)[J].Annals.Geophys.,1955,11:399-419
[5]Leborgne E.Influence of fire on the magnetic properties ofthe soil and those of schist and granite(in French)[J].Annals.Geophys.,1960,16:159-195
[6]刘秀铭,刘东生,Heller F,许同春.黄土频率磁化率与古气候冷暖变换[J].第四纪研究,1990,1(1):42-50
[7]刘青松,邓成龙.磁化率及其环境意义[J].地球物理学报,2009,52(2):1 041-1 048
[8]卢升高,张子玉,俞劲炎,张卫国,俞立中.玄武岩发育土壤的磁化率及其机理解析[J].土壤学报,1999,36(4):544-550
[9]卢升高,俞劲炎.杭州附近几种红壤中磁性矿物的分离与鉴定[J].土壤通报,2000,31(5):196-198
[10]朱立军,傅平秋,万国江.贵州碳酸盐岩发育土壤磁学性质及其发生机理[J].土壤学报,1997,34(2):212-219
[11]杨萍果,毛任钊,翟正丽.土壤磁性的应用研究进展[J].土壤,2008,40(2):153-158
[12]吕厚远,刘东生.C3、C4植物及燃烧对土壤磁化率的影响[J].中国科学(D辑),2001,31(1):43-53
[13]李勇,李海燕,白凌燕,秦炎福,官邦贵,吕跃凤.发育于石英岩之上的表土磁学性质及其环境磁学意义[J].土壤,2009,41(1):60-66
[14]Maher BA.Characterization of soils by mineral magneticmeasurements[J].Phy.Earth Planet.Inter.,1986,42:76-92
[15]Yamazaki T,Ioka N.Gautionary note on magneticgrain-size estimation using the ratio of ARM to magneticsusceptibility[J].Geophys.Res.Lett.,1997,24:751-754
[16]Maher BA.Magnetic properties of some sub-micromagnetite[J].Geophys.J.,1998,94:83-96
[17]Dunlop DJ,Ozdemir O.Rock Magnetism:Fundmentalsand Frontiers[M].Cambridge(UK):Cambridge Univ.Press,1997
[18]Li HY,Zhang SH.Detection of mineralogical changes inpyrite using measurements of temperature-dependence suscep-tibilities[J].Chinese J.Geophys.,2005,48(6):1 454-1 461
[19]邓成龙,朱日祥,袁宝印.黄土高原全新世风成沉积的岩石磁学性质及其古气候意义[J].海洋地质与第四纪地质,2002,22(4):37-44
[20]王喜生,Lovlie R,苏朴.许家窑泥河湾沉积物的岩石磁学性质[J].中国科学(D辑),2002,32(4):271-278
[21]Oches EA,Banerjee SK.Rock-magnetic proxies of climatechange from loess-paleosol sediments of the CzechRepublic[J].Studina Geoph.et Geod.,1996,40:287-300
[22]Florindo F,Zhu RX,Guo B,Yue L,Pan Y,Speranza F.Magnetic proxy climate results from the Duanjiapo loesssection,southernmost extremity of the Chinese loessplateau[J].J.Geophys.Res.,1999,104:645-659
[23]刘秀铭,John S,蒋建中,Jan B,Paul H,Tim R,毛学刚.磁赤铁矿的几种类型与特点分析[J].中国科学:地球科学,2010,40(5):592-602
[24]Mullins CE.Magnetic susceptibility of the soil and itssignificance in soil science—A review[J].J.Soil Sci.,1977,28:223-246
[25]Zhou LP,Oldfield F,Wintle AG,Robinson SG,Wang JT.Partly pedogenic origin of magnetic variations in Chineseloess[J].Nature,1990,346:737-739
[26]Han JM.Palaeo climatic impact on the magnetic and stableisotopic characteristics of the Chinese loess(PhD Thesis)[D].Brussel:Vrije Universiteit Brussel,1991:190-191
[27]Maher BA.Magnetic properties of modern soil andquaternary loessic paleosols:Palaeoclimatic[J].Palaeogeo-graphy,Palaeoclimatology,Palaeoecology,1998,137:25-54
[2]卢升高,俞劲炎.土壤磁学及其应用研究进展[J].土壤学进展,1991,19(5):1-8
[3]俞劲炎,詹硕仁,吴劳生,朱祖祥.热带亚热带土壤的磁化率[J].土壤学报,1986,23(1):50-56
[4]Leborgne E.Anomalous magnetic susceptibility of topsoil(in French)[J].Annals.Geophys.,1955,11:399-419
[5]Leborgne E.Influence of fire on the magnetic properties ofthe soil and those of schist and granite(in French)[J].Annals.Geophys.,1960,16:159-195
[6]刘秀铭,刘东生,Heller F,许同春.黄土频率磁化率与古气候冷暖变换[J].第四纪研究,1990,1(1):42-50
[7]刘青松,邓成龙.磁化率及其环境意义[J].地球物理学报,2009,52(2):1 041-1 048
[8]卢升高,张子玉,俞劲炎,张卫国,俞立中.玄武岩发育土壤的磁化率及其机理解析[J].土壤学报,1999,36(4):544-550
[9]卢升高,俞劲炎.杭州附近几种红壤中磁性矿物的分离与鉴定[J].土壤通报,2000,31(5):196-198
[10]朱立军,傅平秋,万国江.贵州碳酸盐岩发育土壤磁学性质及其发生机理[J].土壤学报,1997,34(2):212-219
[11]杨萍果,毛任钊,翟正丽.土壤磁性的应用研究进展[J].土壤,2008,40(2):153-158
[12]吕厚远,刘东生.C3、C4植物及燃烧对土壤磁化率的影响[J].中国科学(D辑),2001,31(1):43-53
[13]李勇,李海燕,白凌燕,秦炎福,官邦贵,吕跃凤.发育于石英岩之上的表土磁学性质及其环境磁学意义[J].土壤,2009,41(1):60-66
[14]Maher BA.Characterization of soils by mineral magneticmeasurements[J].Phy.Earth Planet.Inter.,1986,42:76-92
[15]Yamazaki T,Ioka N.Gautionary note on magneticgrain-size estimation using the ratio of ARM to magneticsusceptibility[J].Geophys.Res.Lett.,1997,24:751-754
[16]Maher BA.Magnetic properties of some sub-micromagnetite[J].Geophys.J.,1998,94:83-96
[17]Dunlop DJ,Ozdemir O.Rock Magnetism:Fundmentalsand Frontiers[M].Cambridge(UK):Cambridge Univ.Press,1997
[18]Li HY,Zhang SH.Detection of mineralogical changes inpyrite using measurements of temperature-dependence suscep-tibilities[J].Chinese J.Geophys.,2005,48(6):1 454-1 461
[19]邓成龙,朱日祥,袁宝印.黄土高原全新世风成沉积的岩石磁学性质及其古气候意义[J].海洋地质与第四纪地质,2002,22(4):37-44
[20]王喜生,Lovlie R,苏朴.许家窑泥河湾沉积物的岩石磁学性质[J].中国科学(D辑),2002,32(4):271-278
[21]Oches EA,Banerjee SK.Rock-magnetic proxies of climatechange from loess-paleosol sediments of the CzechRepublic[J].Studina Geoph.et Geod.,1996,40:287-300
[22]Florindo F,Zhu RX,Guo B,Yue L,Pan Y,Speranza F.Magnetic proxy climate results from the Duanjiapo loesssection,southernmost extremity of the Chinese loessplateau[J].J.Geophys.Res.,1999,104:645-659
[23]刘秀铭,John S,蒋建中,Jan B,Paul H,Tim R,毛学刚.磁赤铁矿的几种类型与特点分析[J].中国科学:地球科学,2010,40(5):592-602
[24]Mullins CE.Magnetic susceptibility of the soil and itssignificance in soil science—A review[J].J.Soil Sci.,1977,28:223-246
[25]Zhou LP,Oldfield F,Wintle AG,Robinson SG,Wang JT.Partly pedogenic origin of magnetic variations in Chineseloess[J].Nature,1990,346:737-739
[26]Han JM.Palaeo climatic impact on the magnetic and stableisotopic characteristics of the Chinese loess(PhD Thesis)[D].Brussel:Vrije Universiteit Brussel,1991:190-191
[27]Maher BA.Magnetic properties of modern soil andquaternary loessic paleosols:Palaeoclimatic[J].Palaeogeo-graphy,Palaeoclimatology,Palaeoecology,1998,137:25-54
目录