论文部分内容阅读
氧化还原化学剩磁是一种由活动的氧化还原电池产生的电流所引起的化学剩磁(CRM).一个被成矿后火山喷出物覆盖的氧化还原电池,在相当长的段时间内仍将保持活动性.电池所产生的电流将通过围岩和覆盖岩石流动.这种电流引起或加快火山喷出物中铁的再活动.再活动作用可能以一种矿物交换的形式在原地发生,或铁的氢氧化物迁移,然后停积在靠近地表的高氧化还原电位(Eh)处.由铁的再活动而产生的氧化还原化学剩磁,改变了岩石的原始磁存储. 利用古地磁法探求火山岩覆盖区氧化还原CRM的特征,是氧化还原CRM法的基础.当一个矿床被火山岩覆盖,处于与氧化还
Redox chemistry Remaining magnetism is a chemical remanence (CRM) caused by the current generated by an active redox battery. A redox cell covered by a mineralized volcanic discharge remains intact over a relatively long period of time Will remain active.The current generated by the battery will flow through the surrounding rock and cover the rock.This current causes or accelerates the reactivation of iron in volcanic discharge.Reactivation may occur as a mineral exchange in situ or Iron hydroxide migrates and then deposits at the high redox potential (Eh) near the surface. The redox chemical remanence produced by the reactivation of iron alters the original magnetic storage of the rock. The characteristics of the redox CRM in the volcanic covered area are the basis of the redox CRM method. When a deposit is covered by volcanic rocks,