They are not hot and steaming like those seen where geothermal heat is close to the surface, as in New Zealand, Java, and Yellowstone. They are also unique in their entrainment of subterranean fossils and bringing them to the surface. There is no explanation of the way the springs ooze a pale, cold, grey mud to the surface, forming blisters that spurt high into the air. The fossil conveyor belt yields bones of marine reptiles, oyster shells, and the remains of sea creatures that lived during the Jurassic, about 165 million years ago. Some of the bivalves still retain their organic ligaments.
Geologists wonder what forces squeeze the mud to the surface like toothpaste from a tube.
William R. Corliss Other Sites of Interest SIS . Catastrophism, archaeoastronomy, ancient history, mythology and astronomy. Free resource for people thinking about working at home. ABC Dating and Personals . For people looking for relationships.