A mate of mine is a mining geologist.
He says, Australia is the most geographically stable continent, and the land has been eroding at a constant rate for millions of years.
Nothing has significantly changed.
Silt is natural. Coral will climb on top of it. and grow again.
Nutrients are in silt naturally. It is the start of the food chain in the ocean.
algae-krill-little fishies and so on.
The reef will repair itself where it has "bleached" other areas will bleach. Then repair.
