Investigations into the Stable Remanent Magnetization of Sediments

Following the previously described investigations into the magnetic constituents and bulk magnetic properties of red sandstones, the data acquired are examined in relation to the origin and nature of the stable remanent magnetization of these rocks. Based on estimates of haematite content, there is evidence that only a small proportion of the haematite present carries the remanence, the remainder being only weakly magnetized or unmagnetized. The origin of the wide variation in remanent intensity observed in red sediments is also discussed.