Posts treating: "earth"
Monday, 29 September 2014
Impact breccia, or “impactite” is a rare rock type produced by the impact of an asteroid with the Earth. Large impacts can crush millions of tons of rock and scatter the debris over large areas. If this debris is lithified it can become an impact
Recently, I got a rare opportunity hunt for fossils in the Waldron Shale and a number of fossils were found. Nothing earth shattering but it was fun to get out after a long absence to poke around and see some familiar fossil friends.
This first image is of a fragment of a Trimerus trilobite pygidium. Not sure if it is all there in at least one lobe is and probably also the middle section
Philippus Theophrastus Aureolus Bombastus von Hohenheim (1493-1541), better known as Paracelsus, is considered one of the most important mystics and physicians of all times. Some myths even claim he got his medical knowledge from the devil himself; in fact he studied the subterranean realm of earth to understand its effects on human health – one
For a while, now, I’ve planned a series on the kind of creationists who like to run around calling themselves geologists and invade GSA meetings under false pretenses. People like Steven...
-- Read more on ScientificAmerican.com
I don’t want to write about women in science today. I wanted to write about glaciers, or passenger pigeons, or the way the tilt of the earth is making the squirrels outside my office window stash the seeds of trees, or about how sharks have been on this planet longer than trees themselves,
usgs.gov Celebrate the third annual Geologic Map Day! On October 17, as a part of the Earth Science Week 2014 activities, join leading geoscience organizations in promoting awareness of the importance of geologic mapping to society. READ
The Big Picture has two recent sets of photos of geological interest: volcanic activity and images of the earth and space from NASA. You should check out both sets - the volcano pictures, especially, are terrific.
Here's a sampling:
A June 27 lava flow from Kilauea volcano in Pahoa, Hawaii (provided by USGS):
A September 10 solar flare captured by NASA's Solar Dynamics
Utah Geological Survey - blog [2014-09-22 23:01:54]
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(19 visits) Jurassic; US
livescience.com Hikers rambling through Utah’s candy-striped canyons sometimes come across a strange-looking sight. Where the Navajo Sandstone loses its iconic peach, orange and red stripes, hundreds of round, iron-coated stones often litter the ground. READ
dispatch.com Prehistoric life on Earth can seem so strange, with the plants and animals resembling something out of a science-fiction novel about an alien planet. READ
The diversity of life on Earth is under serious threats from multiple human-related causes. Science plays well-known roles in addressing management aspects of this problem. Dr. Harry W. Greene, professor of ecology and evolutionary biology at Cornell University, wants us … Continue reading
For the last decade or so, Columbia University geologist David Walker has led students and colleagues on a tour of the geologic gems hiding within Columbia’s McKim, Mead and White campus in Morningside Heights. Along the way, Walker points to evidence of how life on earth and the planet itself has evolved over its 4.5 billion year
New ELI today - 'Earth on Earth; using a globe in the sunshine to show how day/night and the seasons work'.
Pupils can use the ‘globe in the sunshine’ to:
explain how the half of the Earth bathed in sunlight at any one time is experiencing day, whilst the other half is experiencing night;
point out and explain the day/night dividing lines of dawn and dusk;
show how equatorial regions
The American Geosciences Institute will again host Earth Science Week, an international event that helps the public appreciate the Earth Sciences and to encourage stewardship of the Earth. This year’s Earth Science Week will be held from October 12-18 and will celebrate the theme “Earth’s Connected
NASA’s Earth Observatory has an interesting satellite image of a lava flow in the Holuhraun Lava Field, located between Bardarbunga and Askja volcanoes. The image also shows impressive features in the surrounding bedrock and adjacent Vatnajokull ice
The crater from the meteorite impactFrom this referenceA fragment of the meteorite passing close to earth has made a crater in Nicaragua. I'll post more when I've got some reliable
Here are some of the highlight tweets from the Wegener 2014 conference held at the School of Earth and Environment, University of Leeds, UK. Find all the tweets at
Meet Dreadnoughtus schrani
Geology in the West Country [2014-09-05 12:19:00]
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(27 visits) SE,NG,US,KM,IS
Click here to keep up to date with the latest developmentsBárðarbunga is a large central vent volcano lying underneath Iceland's 500-m thick Vatnajokull glacier in the centre of the country. It is located at the junction between the eastern and northern volcanic rift zones in the area close to where some scientists consider is the present-day location of the mantle hotspot beneath Iceland. The complex rifting means that there are probably sub-surface magmatic connections to both the Grimsvotn [...]
Thanks for all of your conjectures about yesterday's mystery photo! The Earth is such a fascinating place, and there are so many different kinds of strange patterns that have different origins. Let's review some of the guesses (and they were very good, by the way):
a. Sinkholes and karst topography
b. Bison wallows
c. Ground squirrel or prairie dog workings
d. Periglacial patterned ground
So far, the research I've done in Antarctica has been out of McMurdo Station. That's on the side of the continent closest to New Zealand and Australia. This coming field season, I will be doing my field work on the other side of the continent, along the Antarctic Peninsula. This is the piece of land that extends up towards South America.Image from WikipediaThe Antarctic Peninsula is one of the fastest changing regions on the planet. It is warming at one of the fastest rates on Earth. Also, [...]