Need Sediment Thickness Map using GMT of Fuxian Lake - A deep Lake in SW China

I am Umar Ashraf, doing the research on the Fuxian Lake, the second deepest freshwater lake of China which is located in the southwestern region of China, Yunnan Province. I am hereby writing the GMT community to ask for help. Please provide me the sediment thickness map of Fuxian Lake along with its DEM. I don’t know how to use the GMT software because I am not good at coding.
I will be very thankful to anyone who can provide any assistance.
I will be eagerly waiting for your responses.