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.
Inflammation of the lung membrane (pleuritis) on the left side can cause stabbing pain around the lower ribs. Pain is usually affected by deep breath and cough. Pneumonia(bacterial, viral or caused by mycoplasma or other microbes) affecting the left lung can cause cough, left side chest pain and fever.