A record of palaeosecular variation has been obtained from a stalagmite from Vancouver Island, Canada, spanning the period 16.9 ± 6.0 to 13.3 ± 2.3 ka. Dating control was provided using the uranium-thorium disequilibrium method. The main magnetic remanence carrier in the speleothem is a fine-grained magnetite which is thought to be of detrital, rather than chemical, origin. The record is apparently free from any depositional inclination errors and compares well with a contemporaneous speleothem record obtained from the same cave (Latham et al., 1987). Good correlation also exists with several North American lacustrine records. The record provides evidence of clockwise looping of the position of the virtual geomagnetic pole over western Canada from about 14.9 to 13.6 ka, and in the interval from 16.9 to 15.2 ka the data can be modelled by a stationary, oscillating, inward-pointing source to the north-west of the sampling site.

An integrated sedimentological and magnetostratigraphic study has allowed a detailed understanding of the late Miocene to early Pleistocene evolution of the sediments in the Quseir region of the Egyptian Red Sea coast. Palaeomagnetic samples were collected from sections in six wadis, covering the Shagara Formation, the Gabir and Samh members of the Wardan Formation, and the Abu Dabbab Formation evaporites. Remanence properties are carried by magnetite, haematite and goethite. The characteristic remanence is typically carried by detrital magnetite and haematite, with more recent overprints predominantly associated with haematite and goethite, produced by the weathering of diagenetic pyrite. The magnetostratigraphy has allowed the following detailed age assignments for the lithostratigraphic units. The Shagara Formation ranges in age from late Pliocene (late Piacenzian) to middle Pleistocene (0.6–2.5 Ma). The Gabir Member is latest Messinian to earliest Piacenzian in age (≈3.5–5.5 Ma) and the Samh Member, late Tortonian to mid‐Messinian (≈6.0–7.5 Ma). The age of the top of the Abu Dabbab Formation is probably mid‐Tortonian (≈8 Ma). Disconformities occur between all the lithostratigraphic units, with a local angular unconformity between the Shagara and Wardan Formations. Lowstands in global sea level appear to have a strong influence on the timing of these disconformities. Characteristic mixed alluvial and reef facies of the Shagara formation are a response to the ephemeral wetter climate following the initiation of northern hemisphere glaciation at ≈2.4 Ma, enhanced by rift‐margin uplift of basement complexes to the west. This tectonic activity was concentrated in the early Piacenzian. The marine Gabir Member was deposited during the early Pliocene and latest Messinian high‐sea‐level stands. The late Tortonian/early Messinian age and sedimentological character of the Samh Member indicates this unit was affected by marine flooding events, which ultimately produced, during drawdown phases, the off‐shore Zeit Formation evaporites in half‐graben depocentres.