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.
Therefore the organs in this area may be the cause of the pain. This includes: Lung and bronchus; Heart and great blood vessels; Esophagus; Stomach; Colon; Spleen; Kidney; There are a number of conditions of the chest wall that can cause superficial pain over the left ribcage. This may sometimes extend deeper under the left ribcage. Broken ribs, shingles, trauma and breast pain are some of the possible causes of chest wall pain. Heart and Blood Vessels. The heart lies in the center of the chest and extends more to the left. It therefore causes central to left-sided chest pain and the pain with certain cardiac conditions may extend down the left arm.