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Could'nt be ancient civilisations, in the middle of the pacific ocean?
"In this case, however, what users are seeing is an artefact of the data collection process. Bathymetric (or sea floor terrain) data is often collected from boats using sonar to take measurements of the sea floor," she added.
"The lines reflect the path of the boat as it gathers the data. The fact there are blank spots between each of these lines is a sign of how little we really know about the world's oceans."
signalfire
Yup, it's what Foxtrot said, sonar scans. You can see them all over the place on Google Earth, just have to zoom in to the right level.
pheonix358
reply to post by SecretKnowledge
Could'nt be ancient civilisations, in the middle of the pacific ocean?
This would be the Indian Ocean or possibly the Southern Ocean. Nowhere near the Pacific!
P