Squid Cove (image) Geological Society of America Share Print E-Mail Caption Curiosity Mastcam image of the Squid Cove rock slab taken on Sol 1555. The red-toned bed is covered by ridges that are the remnants of sediment that filled cracks that formed in drying lake in Gale Crater some ~3.5 billion years ago. The cracks terminate at the underlying bed, which is coarser and did not fracture. The slab is about 60 cm across. Credit Image courtesy NASA. Usage Restrictions Credit NASA. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.