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A one trillion tonne iceberg – one of the biggest ever recorded - has calved away from the Larsen C Ice Shelf in Antarctica. The calving occurred sometime between Monday 10th July and Wednesday 12th July 2017, when a 5,800 square km section of Larsen C finally broke away. The iceberg, which is likely to be named A68, weighs more than a trillion tonnes. Its volume is twice that of Lake Erie, one of the Great Lakes.
http://www.projectmidas.org/blog/calving/
Also at BBC, PBS, The Guardian, and The Verge.
Complete Calving Coverage:
Antarctic Larsen C Ice Shelf to Calve; Halley VI Research Station Plans Move
Antarctic Ice Rift Close to Calving, After Growing 17km in 6 Days
Delaware-Sized Iceberg Could Break Off of Antarctica at Any Moment
Larsen C Rift Branches as it Comes Within 5 km of Calving
(Score: 2) by PinkyGigglebrain on Wednesday July 12 2017, @04:57PM
I'd bet it falls under Oceanography. Icebergs are not generally considered Geologic features the way something like a glacier would is and an iceberg has more impact on the marine environment than anywhere else.
Of course there might also be a niche field with it's own name just for icebergs that almost no one has ever heard of before. I doubt that would surprise anyone here.
"Beware those who would deny you Knowledge, For in their hearts they dream themselves your Master."