Meguma terrane

The exposed part of the Meguma terrane, the Meguma Group, is largely composed of c. 10 km (6.2 mi) thick Cambrian to Ordovician turbidites that have been interpreted as submarine fan deposits.

[2] The Meguma Group is intruded by numerous Devonian and Carboniferous plutons.

[3] The extent of the formation is unclear; some geologists believe that a magnetic anomaly along the coast of Cape Cod may represent a suture between the Meguma and Avalon terranes in that region.

[5] Meguma was, nevertheless, part of Gondwana during the Cambrian, and possibly formed a single peri-Gondwanan fragment together with Avalon.

[6] Geologically this area is of interest not only to students of geological history, but because metamorphism produced gold deposits which were mined extensively (up to 30,000 ozt/a (930 kg/a)) in the latter half of the 19th century, and which remain potentially exploitable today during periods of higher gold prices.