RE:RE:How Much Gold In Purdy's Reward?Tx, how do you prove something that is 2.9 billion years old? QH might figure it out but I can't. Don't disagree with your hypothesis on photosynthesis. My guess is that the Bay was very shallow say 5 meters deep 200 kilometers from shore sloping up to 1 meter deep close to the shore and all areas got plenty of sunlight. Don't know if Beaton's Creek conglomerates are composed of entirely different material than Purdy's Reward's so my guess is entirely unsupported by facts. If there is no link between different conglomerate beds by type and age of materials deposited scattered throughout NW Australia, how will we ever know how the gold got there?