Keyword Search

Search for any geological feature below

–then click on the image to see a larger version in its correct format, a more detailed caption, and an ID number.

and please, drop me a line if you find this site useful!

*****

SOME POINTERS:

Photos typically include their locations, so you can use locations as keywords too. You get more hits with shorter words, and fewer hits as you become increasingly specific with increasing numbers of keywords. It’s best to use singular rather than plural (eg “volcano” instead of “volcanoes”).

As some words are included in others (“salt” within “basalt,” for example) you might want to be more specific to avoid getting a bunch of irrelevant photos.

Or you can just scroll down and see the most recently added photos… Enjoy!

5332 images found

Page 254 of 254« First «...10 20 30...250 251 252 253254

Sawtooth Peak

Sawtooth Peak (right) capped by Columbia River Basalt. Beneath it is granite of the Wallow Batholith –and off to the left, are the bedded rocks of the Martin Bridge Limestone. (Image ID# 140713-43s)

Download Image

Wallowa Mountains, Oregon

The Wallowa Mountains rise along a fault zone just south of the town of Joseph, Oregon. (Image ID# 100624-15lr)

Download Image

Mudcracks and Ripple Marks

Mudcracks (left) and ripple marks (right) in rock of the Belt Supergroup. (Image ID# belt-sedsrs-pic)

Download Image

Proterozoic stromatolite (vertical)

Proterozoic Helena Formation stromatolite. (Image ID# 090717-33)

Download Image

Earthquake Damage, New Zealand

A home left balancing on the edge of a cliff after the cliff failed during an earthquake in Christchurch, New Zealand. Note the Exposed basalt-filled channel and the shipping containers along the highway to mitigate further sliding or rockfall 140127-28)

Download Image

Granite intruding Gneiss

1.4 billion year old granite intruding 1.7 billion year old gneiss. (Image ID# ig-23)

Download Image

Glacial Cirques, Colorado

Ice-sculpted Upper Glacier Gorge, a glacial cirque in Colorado. This photo shows a tarn, two cirques and two aretes. The peak on the left, the Spearhead, is the end of one arete, the other is the sunlit ridge in the right background. (Image ID# 140809-94)

Download Image

Tilted nonconformity, Montana

Cambrian Flathead Sandstone overlying Proterozoic gneiss in Southwest Montana. Note the pegmatite dike in the gneiss and the basal conglomerate in the sandstone. A nonconformity is a type of unconformity in which sedimentary rock depositionally overlies intrusive igneous or metamorphic rock. (Image ID# 100629-37)

Download Image

Great Unconformity in Wyoming

The yellow arrow points to the contact between the Cambrian Sandstone and underlying Precambrian metamorphic rock. (Image ID# sru-14e)

Download Image

Gneiss close-up

This hand sample of gneiss shows crystals that formed in the same orientation, as a result of recrystallization while under directed pressure. (Image ID# met-09)

Download Image

Paleozoic Rock, Mojave Desert, CA

Paleozoic Rock of the Resting Spring Range as seen from the Amargosa Valley. The red-brown colored strata near the base of the photo belong to the Cambrian Cararra Formation while the overlying gray limestone belongs to the Cambrian Bonanza King Formation. (Image ID# 101218-38)

Download Image