One of the distinctive features of the geology of Guernsey is the presence of numerous dykes, with a wide range of compositions, which were emplaced at various times during the evolution of the island (Roach et al., 1991). Various groups of what are here referred to...
Signal strength measurements at frequencies of around 300 MHz over two sea paths in the British Channel Islands
In order to gather information about the occurrence of ducting/superrefraction and signal-fading effects at frequencies around 300 MHz with antenna heights appropriate to intership communications, an experimental investigation has been undertaken with a transmitter...
The Wolf Cave Gabbro – alkaline olivine basaltic magmatism in Jersey, Channel Islands
An 8m thick coarse-grained olivine dolerite dyke, with well-developed chilled margins, trending NNE-SSW and occupying a steep-sided cove on the north Jersey coast, may show evidence for some flow differentiation. Texturally, the dyke is remarkable for the pronounced...
Basement weathering at the Lower Palaeozoic unconformity in the Channel Islands and northern Brittany
Deep weathered profiles are developed in igneous basement rocks immediately beneath the Lower Palaeozoic elastic sequences of Alderney, Jersey and northern Brittany. The weathering features are interpreted to have developed during the early Palaeozoic. In western...
“Origin of appinitic pockets in the diorites of Jersey, Channel Islands”
Isolated pockets of pegmatitic appinite characterized by hollow-shell, prismatic amphiboIes are common in the Pre-Cambrian metagabbros and metasomatic diorites of Jersey. Field relationships and petrography indicate a liquid phase in the formation of these appinitic...
Jersey’s Geodiversity
Geodiversity as a discipline is increasingly being included in the assessment and management of natural and cultural environments (Zwolinski, 2017). It has a strong influence on biodiversity (Hjort, Heikkinen and Luoto, 2012; Gray, Gordon and Brown, 2013) and is...