Puerto Rico Bank

The Puerto Rico Bank (PRB) (Spanish: Banco de Puerto Rico), also known as the Puerto Rican Bank (PRB), is a carbonate platform and insular shelf comprising the archipelagos of Puerto Rico and the Virgin Islands, located between the Greater Antilles and the Lesser Antilles in the northeastern Caribbean. Last subaerially exposed from the Last Glacial Maximum in the Last Glacial Period of the Late Pleistocene Age to the Northgrippian Age of the Holocene Epoch, the bank connected Puerto Rico and the Virgin Islands into a single landmass until sea level rise fragmented it into the present-day islands between 10,000 and 7,000 years Before Present (8,050 and 5,050 years Before Common Era). It is within the Puerto Rico–Virgin Islands microplate between the North American plate and Caribbean plate.