GEOGRAPHY & GEOLOGY - basalt rocks , giants causeway, Ireland

Perfect hexagonal columnar joint basalt rocks, Giants Causeway, near Bushmills, Antrim County, Ireland

"...is people excell at energy weap..."  -fragment of recording salvaged from gray box

Active lava flow in Hawaii Volcanoes National Park. Massive rock layers laid down in hours and days-- millions of years not required.

MATIÈRE / Volcano Lava - natural textures & sculptural surface pattern inspiration for design; art in nature

MATIÈRE / Volcano Lava - natural textures & sculptural surface pattern inspiration for design; art in nature

The multicolored earth in Chamarel, Mauritius was formed when volcanic rock cooled at different temperatures. It is truly an amazing site. See 20 more UNREAL travel destinations on Avenly Lane Travel! http://www.jetradar.com/?marker=126022

Extremely Helpful Apps You Should Have When Travelling The multicolored earth in Chamarel, Mauritius was formed when volcanic rock cooled at different temperatures. It is truly an amazing site. See 20 more UNREAL travel destinations on Avenly Lane Travel!

Stunning unique remote beaches off the main tourist track and white volcanic rock formations.

REMOTE BEACHES IN MILOS & KIMOLOS

Stunning unique remote beaches off the main tourist track and white volcanic rock formations.

Colorful crabs on volcanic rocks

20 Photos to Inspire You to Visit The Galápagos

Colorful crabs on volcanic rocks

Hiked through fields of wildflowers and volcanic rock to Phantom Falls near Oroville CA [OC] [22851714] #reddit

Hiked through fields of wildflowers and volcanic rock to Phantom Falls near Oroville, CA [OC] [2285×1714] #reddit

Hiked through fields of wildflowers and volcanic rock to Phantom Falls near Oroville CA [OC] landscape Nature Photos

Hawaii's Amazing Volcanic Rocks Becky Oskin, OurAmazingPlanet Staff WriterDate: 14 May 2013 Pele's hairCredit: USGS. As winds stretching strands of lava cool the rock to glass, Pele's hair forms. Pele's hair can appear at the front of 'a'a flows or as pahoehoe lava plunges over a cliff, according to the U.S. Geological Survey. The long strands (up to 6 feet, or 2 meters) are also found around Kilauea volcano's Halema'uma'u crater, home of an active lava lake.

Photo Glossary: Hawaii's Amazing Volcanic Rocks

"Hundreds of strands . intertwined on the surface of a pahoehoe [ropy lava] flow at Kilauea Volcano, Hawaii. The glass strands were erupted from Mauna Ulu, a shield that formed on the east rift of Kilauea between 1969 and

The tram takes you up past all the volcanic rock to the mountain station at 8516

The tram takes you up past all the volcanic rock to the mountain station at 8516

Hawaii's Amazing Volcanic Rocks Becky Oskin, OurAmazingPlanet Staff WriterDate: 14 May 2013 AndesiteCredit: USGS. Andesite, named for the Andes Mountains, is a gray to black volcanic rock that usually contains crystals of a mineral called plagioclase. While rare in Hawaii, andesite is common in subduction zone volcanoes, such as along South America and Alaska.But there is an andesite lava, called hawaiite, that is found only on Mauna Kea and Haleakala.

Photo Glossary: Hawaii's Amazing Volcanic Rocks

A photo glossary of Hawaii's amazing variety of rocks and lava.

The Hawaiian Islands are almost entirely built from basalt lava, the most common rock on Earth.

Photo Glossary: Hawaii's Amazing Volcanic Rocks

Hawaii's Amazing Volcanic Rocks Becky Oskin, OurAmazingPlanet Staff WriterDate: 14 May 2013 BasaltCredit: USGS. The Hawaiian Islands are almost entirely built from basalt lava, the most common rock on Earth.

Hawaii's Amazing Volcanic Rocks Becky Oskin, OurAmazingPlanet Staff WriterDate: 14 May 2013 ObsidianCredit: USGS. Obsidian is quickly-chilled lava, cooled so fast its crystals dont have time to grow. Obsidians shiny appearance and curved, keen edge make the rock a favorite for knife blades and arrowheads. Most obsidian forms from silica-rich rhyolite, an uncommon lava in Hawaii. The only obsidian in Hawaii is found at Puu Waawaa, a cone on the north flank of Hualalai Volcano.

Photo Glossary: Hawaii's Amazing Volcanic Rocks

Related stories to the geologic map of the San Francisco Bay area.

Hawaii's Amazing Volcanic Rocks Becky Oskin, OurAmazingPlanet Staff WriterDate: 14 May 2013 AaCredit: USGS This rough, rubbly lava, pronounced ah-ah, is the Hawaiian term for a thick, pasty lava flow with a fragmented surface. The distinctive, blocky flow advances like a tractor tread, with a jumbled mass steepening at the front until it tumbles over.

Photo Glossary: Hawaii's Amazing Volcanic Rocks

Looking into the front of an advancing 'a'a flow on the egde of kipuka forests in royal Gardens subdivision, Hawaii.

Few People Realize There's An Active Volcano Right Here In Virginia

Few People Realize There's An Active Volcano Right Here In Virginia

The volcanic rocks on the shore of Briar's Island, Nova Scotia.

The volcanic rocks on the shore of Brier Island, Nova Scotia make for some fantastic colors with the lichen on the surface. Brier Island is south of Long Island on the Digby Neck.

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