This and That...

fyeahtorybelleci:

“You know it is going to be good when we have to go to the desert” ~ Kari Twitter

uniformitarianism:

Tons of chalk fall from the White Cliffs of Dover, Kent, UK (14 March, 2012). (More photos and info)

migeo:

The Hawaiian Islands were formed as the Pacific Plate moved westward over a geologic hot spot. The most populous Hawaiian Island, Oahu, is dominated by two large shield volcanoes that range in age from two to four million years old. However, a fair number of smaller and much younger volcanic craters are also present on Oahu, such as Diamond Head Crater pictured above. These younger eruptions were also much smaller in lava output, and much more explosive in nature than the older shield lavas. The younger volcanic craters are all less than 500,000 years old. They formed after Oahu had moved well off the hot spot and the main shield volcanoes had gone dormant for at least two million years. For example, Oahu is now over 200 mi (320 km) from the still-active Kilauea, on the Big Island, consistent with the modern rate of plate motion of four inches (about 10 cm) a year. What caused these younger eruptions of the Honolulu Volcanic Series so long after the island had moved off the hot spot, their precise ages of eruption, and whether they will erupt again, are current points of research and debate among geoscientists. Photo taken on June 12, 2008. Credit: Charles W. Carrigan. (via EPOD)

thomaspowers:

(via thatisgneiss)

The shaping of our Earth, thanks to Plate Tectonics.

For hundreds of millions of years, our land has been crunched, stretched, submerged, and thrown into the sky because of the plates that lay over our Earth. It’s created the landscape we see now, but that continues to change every day, with landmasses slowly making their way across the globe, which will (theoretically) one day smash together again to create the super continent (estimated in 150-250 Ma) Pangea Ultima.

(via thatisgneiss)

atravesdeestosojos:

Nummulites

(via geologyrocks)

fyeahtorybelleci:

“Bring on the Apocolypse!” ~ Tory Twitter

fuckyeahmythbusters:

Mark Sheppard, of Battlestar Galactica fame, stops by the Mythbusters’ signing at Comic-Con.

fuckyeahvolcanoes:

“Forest of lava trees resulting from eruption of a 1-km-line of vents east of Pu’u ‘O’o Kahaualea. The bulbous top of each lava tree marks the high stand of the lava flow as it spread through the trees. As the fissure eruption waned, the flow continued to spread laterally; its surface subsided, leaving pillars of lava that had chilled against tree trunks. Spattering is from fissure out of view to the left. Note blob of spatter adhering to the top of the stripped ‘ohi‘a tree.” Image by J.D. Griggs.

migeo:

Bryozoa (by Grimsvotn)

Devonian Age Fossil.

migeo:

Image taken through [Opportunity’s] microscope of the plate of bedrock it studied a few sols back. (via The Road To Endeavour)

migeo:

Cubic Pyrite Cluster (by Grimsvotn)

This Pyrite specimen is from Navajun, La Rioja, Spain. There are 3 cubes in total. This is a natural formation and is not man made or carved. It measures 3” X 2 1/4” x 2”.