This granite pegmatite illustrates the growth of extremely large crystals from a magma.
Earth cycles Global cycles of life-giving elements
How do Earth’s resources, such as metal ores, oil, and gas, form? Observe ore specimens, a groundwater video, and the water cycle diagram to find out.
Earth cycles Global cycles of life-giving elements
These dacite samples from Mount Rainier are 93,500 years old.
Earth cycles Global cycles of life-giving elements
Forty million years ago, the continent of India collided with Asia.
Earth cycles Global cycles of life-giving elements
The presence of diamond in this rock indicates that it had been buried to a depth of about 130 kilometers.
Earth cycles Global cycles of life-giving elements
Metamorphism is the process by which rocks re-crystallize into new combinations of minerals.
Earth cycles Global cycles of life-giving elements
This model represents part of a 3.6million year sediment record from far northeastern Siberia, Russia.
Earth cycles Global cycles of life-giving elements
Seismologists study shock, or seismic, waves as they travel through the Earth’s interior.
Earth cycles Global cycles of life-giving elements
Most earthquakes occur at plate boundaries. Where plates spread apart, earthquakes are shallow and small.
Earth cycles Global cycles of life-giving elements
The glassy crust has broken off the rounded surface of this pillow, exposing the dark, fine-grained basalt beneath.
Earth cycles Global cycles of life-giving elements
