On NUMBER@1 March NUMBER@2 , a team of scientists on board the RRS PERSON@1 embarked on a voyage to an area of the LOCATION@1 seafloor where the mantle lies exposed without any crust covering , mid-way between the LOCATION@2 and the LOCATION@3 .

On March NUMBER@1 , NUMBER@2 , a team of scientists on board the RRS PERSON@1 went on a voyage to an area of the LOCATION@1 seafloor where the mantle has no crust covering .
