Ship Rock is located
in New Mexico. The main part is a volcanic neck that remained after the rest of
the volcano eroded away. The radial lines are dikes that fed magma to the
volcano. Ship Rock is nearly 1,400 feet (470 m) high, and the dikes form large
walls across the desert.
Ship Rock New Mexico, United States One of America's most
spectacular and famous landforms, Ship Rock is a volcanic neck with dikes
radiating from it. The ancient volcanic cone that once surrounded Ship Rock has
been removed by erosion. The dikes acted as feeders and probably fed flank
eruptions. Ship Rock is part of the Navajo Volcanic Field, which lies in the
Four Corners area (intersection of Utah, Colorado, Arizona, and New Mexico)
covering about 7,810 squares miles (20,000 km2). The igneous bodies have an
unusual composition and occur as either diatremes (kimberlites) or tuff pipes.
The activity occurred from about 30 to 25 million years ago, and erosion has
proceeded ever since.
No comments:
Post a Comment