The Disintegration of the Wreck

These drawings by Sally Elmer were taken from:

"Pandora: an archaeological perspective" 
By Peter Gesner: ISBN 0 7242 4482 4
© Queensland Museum

Stage 1 - 1 year after sinking - spars and rigging floated off, general weakening of structure and light sediment deposits
Stage 2 - 1 to 10 years. Upper deck collapses - marine borer activity. Sediment build up in spaces
Stage 3 - 10 to 50 years. Collapse of structural timbers. Seabed buildup around hull and heavy objects drop to lower areas of hull.
Stage 3 - 50 to 80 years. Stabilisation of Wreck. Spaces filled with sediment that stops marine borer activity. Organic material insulated from oxygen.

An impression of the wreck today .. as it is embedded. 
There is still a lot to be discovered as to what hull structure remains.