Updated Articles and Resources
- Hazardous Plants Gallery - Poodle-Dog BushCreated: 2009-07-09 @ 00:02:19 GMT Updated: 2009-07-09 @ 00:07:18 GMT
Turricula parryi, poodle-dog bush, is a nasty plant of Southern California. … - Igneous Rock Textures - Spinifex TextureCreated: 2009-07-08 @ 04:47:04 GMT Updated: 2009-07-08 @ 17:45:31 GMT
Rocks with spinifex texture are full of long needlelike crystals… - Igneous Rock Types - Komatiite PictureCreated: 2009-07-08 @ 04:31:58 GMT Updated: 2009-07-08 @ 17:46:39 GMT
Komatiite is a rare and ancient ultramafic lava… - Mohs Hardness ScaleCreated: 2009-07-04 @ 04:19:12 GMT
The ten-mineral Mohs scale of relative hardness, based on what scratches what… - Mountain, California - Erosional Landform PicturesCreated: 2009-07-01 @ 00:54:12 GMT Updated: 2009-07-01 @ 02:10:48 GMT
Mountains are a quintessential erosional landform… - Dune, California - Depositional Landform PicturesCreated: 2009-07-01 @ 00:21:48 GMT Updated: 2009-07-01 @ 00:22:17 GMT
Dunes in all their variety are depositional landforms… - Serpentinite Gallery - Serpentinite Outcrop, Ring Mountain Preserve,…Created: 2009-06-30 @ 21:20:17 GMT Updated: 2009-06-30 @ 21:39:31 GMT
A dramatic slab of serpentinite and related rocks at Ring Mountain Preserve… - Serpentinite Gallery - Vermont SerpentiniteCreated: 2009-06-30 @ 21:14:21 GMT Updated: 2009-06-30 @ 21:26:43 GMT
Serpentinite from a former terrane suture in Vermont… - Pennsylvania Concretion - Picture Gallery of ConcretionsCreated: 2009-06-29 @ 21:04:25 GMT Updated: 2009-06-29 @ 21:04:59 GMT
A large, well-formed concretion from Pennsylvania… - Mushroom Shaped Concretion - Picture Gallery of ConcretionsCreated: 2009-06-29 @ 21:01:12 GMT Updated: 2009-06-29 @ 21:05:25 GMT
A mushroom-shaped concretion found in Topeka, Kansas… - Bone-Shaped Concretion - Picture Gallery of ConcretionsCreated: 2009-06-29 @ 20:55:01 GMT Updated: 2009-06-29 @ 21:05:38 GMT
Concretions may resemble bones and other fossils… - Concretion from South Africa - Picture Gallery of ConcretionsCreated: 2009-06-29 @ 20:51:20 GMT Updated: 2009-06-29 @ 21:06:02 GMT
A concretion from coastal South Africa… - Erosional Landform PicturesCreated: 2009-06-26 @ 00:34:23 GMT Updated: 2009-06-26 @ 00:34:23 GMT
A gallery of erosional landform types… - Inselberg, California - Erosional Landform PicturesCreated: 2009-06-26 @ 00:31:58 GMT
Inselbergs are a type of erosional landform… - Columbia Park Machinery - Karrenfeld of Columbia, California - Pictu…Created: 2009-06-24 @ 01:56:34 GMT Updated: 2009-06-24 @ 01:57:35 GMT
Machinery and limestone on display at Columbia, in the California gold country… - Karrenfeld Surface - Karrenfeld of Columbia, California - Pictures o…Created: 2009-06-24 @ 01:56:22 GMT Updated: 2009-06-24 @ 01:57:45 GMT
Clints and grikes in the California gold country… - Karrenfeld Shapes - Karrenfeld of Columbia, California - Pictures of…Created: 2009-06-24 @ 01:55:55 GMT Updated: 2009-06-24 @ 01:57:55 GMT
Closer look at the Columbia karrenfeld in the California gold country… - Sluiceboxes - Karrenfeld of Columbia, California - Pictures of a Kar…Created: 2009-06-24 @ 01:55:39 GMT Updated: 2009-06-24 @ 01:58:04 GMT
Sluiceboxes on display at Columbia, in the California gold country… - Marble of the Calaveras Formation - Karrenfeld of Columbia, Californ…Created: 2009-06-24 @ 01:55:27 GMT Updated: 2009-06-24 @ 01:58:22 GMT
Marble hand specimen from Columbia in the California gold country… - Stone Spires and Miner's Cabin - Karrenfeld of Columbia, California …Created: 2009-06-24 @ 01:55:15 GMT Updated: 2009-06-24 @ 01:58:48 GMT
A miner's cabin sits amid marble knobs in the California gold country… - Calaveras Formation Marble - Karrenfeld of Columbia, California - Pi…Created: 2009-06-24 @ 01:54:52 GMT Updated: 2009-06-24 @ 01:59:01 GMT
Calaveras Formation marble crops out near Vallecito in the California gold country… - Grassy Karrenfeld - Karrenfeld of Columbia, California - Pictures of…Created: 2009-06-24 @ 01:01:10 GMT Updated: 2009-06-24 @ 01:59:12 GMT
Solid rock knobs rise above the grass in Columbia in the California gold country… - Town Park Karrenfeld - Karrenfeld of Columbia, California - Pictures…Created: 2009-06-24 @ 01:00:31 GMT Updated: 2009-06-24 @ 01:59:21 GMT
Karst features in a town park in Columbia in the California gold country… - Columbia Karrenfeld from the Air - Karrenfeld of Columbia, Californi…Created: 2009-06-24 @ 00:59:13 GMT Updated: 2009-06-24 @ 01:59:42 GMT
Aerial view of the Columbia karrenfeld in the California gold country… - Karren Gone Wild - Karrenfeld of Columbia, California - Pictures of …Created: 2009-06-24 @ 00:59:01 GMT Updated: 2009-06-24 @ 01:59:52 GMT
Previously mined ground goes back to the wild at Columbia in the California gold country… - Dissolution Grooves - Karrenfeld of Columbia, California - Pictures …Created: 2009-06-24 @ 00:58:45 GMT Updated: 2009-06-24 @ 02:00:03 GMT
Dissolution grooves in marble near Vallecito in the California gold country… - Karrenfeld of Columbia, California - Pictures of a Karst KarrenfeldCreated: 2009-06-24 @ 00:57:16 GMT Updated: 2009-06-24 @ 01:57:12 GMT
A large karstland is preserved in the California gold country… - Hanging Valley, Alaska - Erosional Landform PicturesCreated: 2009-06-19 @ 00:23:42 GMT Updated: 2009-06-19 @ 00:24:04 GMT
Hanging valleys are a type of erosional landform… - Valley, California - Erosional Landform PicturesCreated: 2009-06-19 @ 00:21:15 GMT Updated: 2009-06-19 @ 00:24:14 GMT
A valley is a type of erosional landform… - Wave-Cut Platform, California - Erosional Landform PicturesCreated: 2009-06-18 @ 00:38:34 GMT Updated: 2009-06-18 @ 00:47:15 GMT
Wave-cut platforms are a type of erosional landform… - Water Gap, California - Erosional Landform PicturesCreated: 2009-06-18 @ 00:37:03 GMT Updated: 2009-06-18 @ 00:46:57 GMT
Water gaps are a type of erosional landform… - Arch, Utah - Erosional Landform PicturesCreated: 2009-06-18 @ 00:36:05 GMT Updated: 2009-06-18 @ 00:42:47 GMT
Arches are a type of erosional landform… - Badlands, Wyoming - Erosional Landform PicturesCreated: 2009-06-18 @ 00:35:23 GMT Updated: 2009-06-18 @ 01:03:41 GMT
Badlands are a type of erosional landform… - Butte, Utah - Erosional Landform PicturesCreated: 2009-06-18 @ 00:34:27 GMT Updated: 2009-06-18 @ 00:43:20 GMT
Buttes are a type of erosional landform… - Canyon, Wyoming - Erosional Landform PicturesCreated: 2009-06-18 @ 00:33:44 GMT Updated: 2009-06-18 @ 00:43:42 GMT
Canyons are a type of erosional landform… - Chimney, California - Erosional Landform PicturesCreated: 2009-06-18 @ 00:32:58 GMT Updated: 2009-06-18 @ 00:57:20 GMT
Chimneys are a type of erosional landform… - Cuesta, Colorado - Erosional Landform PicturesCreated: 2009-06-18 @ 00:32:19 GMT Updated: 2009-06-18 @ 00:44:25 GMT
Cuestas are a type of erosional landform… - Gully, California - Erosional Landform PicturesCreated: 2009-06-18 @ 00:31:37 GMT Updated: 2009-06-19 @ 00:28:59 GMT
Gullies are a type of erosional landform… - Hogbacks, Colorado - Erosional Landform PicturesCreated: 2009-06-18 @ 00:30:45 GMT Updated: 2009-06-18 @ 00:44:54 GMT
Hogbacks are a type of erosional landform… - Hoodoo, New Mexico - Erosional Landform PicturesCreated: 2009-06-18 @ 00:30:06 GMT Updated: 2009-06-18 @ 00:45:13 GMT
Hoodoos are a type of erosional landform… - Hoodoo Rock, Utah - Erosional Landform PicturesCreated: 2009-06-18 @ 00:29:21 GMT Updated: 2009-06-18 @ 00:45:37 GMT
Hoodoo rocks are a type of erosional landform… - Mesa, Utah - Erosional Landform PicturesCreated: 2009-06-18 @ 00:28:43 GMT Updated: 2009-06-18 @ 00:45:55 GMT
Mesas are a type of erosional landform… - Sea Arch, California - Erosional Landform PicturesCreated: 2009-06-18 @ 00:27:51 GMT Updated: 2009-06-18 @ 00:47:31 GMT
Sea arches are a type of erosional landform… - Tor, California - Erosional Landform PicturesCreated: 2009-06-18 @ 00:26:55 GMT Updated: 2009-06-18 @ 00:46:23 GMT
Tors are a type of erosional landform… - Volcanic Neck, California - Erosional Landform PicturesCreated: 2009-06-18 @ 00:25:59 GMT Updated: 2009-06-18 @ 00:46:41 GMT
Volcanic necks are a type of erosional landform… - Alluvial Fan, California - Depositional Landform PicturesCreated: 2009-06-15 @ 04:28:43 GMT
Alluvial fans are a type of depositional landform… - Igneous Rock Types - Dunite PictureCreated: 2009-06-10 @ 17:52:06 GMT Updated: 2009-06-11 @ 16:12:27 GMT
Dunite is a plutonic rock consisting of olivine…