Abdominal pain. Find possible causes of abdominal pain based on specific factors. Check one or more factors on this page that apply to your symptom. Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission.
Magma in Earth's Mantle Forms Deeper Than Once Thought. Study simulating pressures in mantle beneath the ocean floor shows that rocks can melt at depths up to 250 kilometers. When magma reaches Earth's surface and erupts from a volcano, it becomes lava.
Today, the deepest hole ever created by humankind lies beneath the tower enclosing Kolaâs drill. A number of boreholes split from the central branch, but the deepest is designated âSG-3,â a hole about nine inches wide which snakes over 12.262 kilometers (7.5 miles) into the Earthâs crust.