layered rock


Arizona’s Grand Canyon is a natural formation distinguished by its layered bands of red rock and its vast scale, averaging 10 miles across and a mile deep along its 277-mile length. Much of the area is a national park. With sweeping vistas, it’s a destination for hiking, mule rides, camping and aerial tours, plus white-water rafting on the Colorado River.

i;m FED UPIM SSO FED Up with t

orbjorn that im BUILDING a NEW HOUSE ITS made of FIVE, layers.


it will be put with my, in the (back) yeard. it, WILL bemy place

of peace, anbd calm.FAR AWAY from TORBJOR,

Where to Look for Fossils

Vertebrate Paleontology Collections Manager Amy Henrici in the field. 

by Patrick McShea

As I travelled west from Pittsburgh to meet Carnegie Museum of Natural Hisotry Vertebrate Fossil Collection Manager Amy Henrici for a frog fossil hunting expedition in eastern Nevada, the same question was asked by each of my airplane seat mates.

How do you know where to look for fossils?“ 

For the sites we planned to visit the answer was simple. Earlier written reports by geologists mapping rock formations and mineral deposits noted the occasion occurrence of fossils in certain rock layers. 

Fossil searches involved locating and visiting sites where such rock layers are exposed on the surface, and then examining fragments that have eroded from these outcrops.The full process, which might stretch over decades, is an example of how published findings allow one branch of science to serve another.

As a geologist friend takes great pleasure in explaining, "Geologists let paleontologist know where fossils are in the multitude rock layers of Earth’s history, in time and in place.”

Patrick McShea is a museum educator who is traveling through Nevada with Vertebrate Paleontology Collections Manager Amy Henrici to search for frog fossils. He frequently blogs about his experiences.

geology professor: *points at a diagram of the earth’s interior, crust to core* isn’t it amazing? no one’s ever been below that relatively incredibly thin layer of cooled rock and dirt at the top

me, at the back of the class: *knowing smile*

These mountains proclaim a message that is easy to understand when you have seen their steep walls and layers upon layers of rock, twisted, cracked, filled with gaping wounds. ‘We have suffered most brutally,’ they announce, 'and we are suffering still.’ But they say it proudly, sternly, and with clenched teeth, like ancient, indomitable warriors.
—  Hermann Hesse, Peter Camenzind