eroded volcanic lava, shattered into the sea making sand. basalt with gas creates fountains of lava, steep pile of cinders and bombs, small half mile across, stage 1 capable of 1 week long eruption, stage 2 gas runs out, lava flows out of base. [no gas]. examples mammoth & mono lake.
The most common causes of rib cage pain are a pulled muscle or bruised ribs. Other causes of rib cage pain are: 1  broken ribs. 2  injuries to the chest. 3  rib fracture. 4  diseases that affect the bones, such as osteoporosis. 5  inflamed lining of the lungs. 6  muscle spasms. 7  inflamed rib cartilage.
In addition it assists the lungs in breathing. The rib cage moves up and down facilitating inhaling and exhaling action of the lungs. The rib cage also covers organs like spleen, stomach and kidneys in it. Any injury or damage caused in the underlying organs can cause pain in the ribs. The left rib cage pain occurs due to various causes ranging from indigestion to respiratory disorders. Do not hesitate to seek medical help if you have left rib cage pain with discomfort for more than 2 days.