Hi Floyd!
Thank you for your question. The answer is yes, there are very large sediments of calcium carbonate and dolomite in the oceans. In fact calcium carbonate deposits are gigantic with no adequate explanation for their origins and are not being formed today. Dolomite is in that same category. Loess is a loosely packed form of sediment and was therefore formed during relatively low pressures during the flood and would make it difficult for formations to occur deeper in the ocean. Because of the theories of loess formations, there has not been as much extensive research done as other sediments. With the paradigm of the UM future researchers may find evidence of loess formations in the ocean.
Let me know if I can further answer any questions!
Carter
