Rum part of this blending process, light rums may be filtered to remove any colour gained during ageing. For darker rums, caramel may be added to adjust the colour of the final product. Artificial ageing attempts to match the molecular composition of aged rum using heat and light. Besides rum punches, cocktails such as the Cuba libre and daiquiri have well-known stories of their invention in the Caribbean. Tiki culture in the U.S. helped expand rum's horizons with inventions such as the mai tai and zombie. Other well-known cocktails containing rum include the piña colada, a drink made popular in America
Ita Mai Tai deep southern seamount is also known as Gelendzhik Seamount after a research ship of the same name and forms a volcano-tectonic massif with Ita Mai Tai; thus it consists of two separate volcanoes. The seamount lies on the eastern margin of the Mariana Basin. The lack of magnetic lineations on the seafloor surrounding Ita Mai Tai makes it difficult to tell how old the ocean crust is. However, during the Aptian neighbouring volcanic islands deposited volcanic rocks on the seafloor and the crust is now considered to be of Jurassic age. The Ogasawara Fracture Zone passes just north of Ita