Bailiwick of Guernsey Bailiwick of Guernsey The Bailiwick of Guernsey () is one of three Crown dependencies. Separated from the Dukedom and Duchy of Normandy by and under the terms of the Treaty (or Peace) of Le Goulet in 1204, the Bailiwick comprises a number of islands in the English Channel which fall into three separate sub-jurisdictions: Guernsey, Alderney and Sark. A bailiwick is a territory administered by a Bailiff. The Bailiff of Guernsey is the civil head, and presiding officer of the States of Guernsey, but not of Alderney or Sark. He is the head of the judiciary of the Bailiwick. The
Geology of Alderney in Jersey, loess blew in as dust from the bare ground in the near glacial conditions in the ice ages. Head also formed in the periglacial circumstances by breaking off rock fragments and mixing with dirt. Geology of Alderney The geology of Alderney includes similarities in its rock to the neighbouring Normandy and Guernsey. Although Alderney is only five kilometers long, it has a geological history spanning half of the life of the earth. It is part of the Armorican Massif. Relics of sediments appear as xenoliths in granites. However the earliest dated rock is the grey coloured Western Granodiorite