The best of Geology and Earth Science on the web
Welcome to all-geo.org

LATEST FROM THE GEOBLOGOSPHERE:

July Heat and Misleading Headlines

This past July was the 4th hottest on record and for the 38th July in a row, the global temperature in July was above the average July temperature in the 20th century. Not only that but the same thing has happened for the last 358 consecutive months,...
Categories: Uncategorized; Climate Change; featured;

Information Aversion

Simple Climate | 23 August, 2014
Originally posted on Azimuth:? Why do ostriches stick their heads under the sand when they're scared? They don't. So why do people say they do? A Roman named Pliny the Elder might be partially to blame. He wrote that ostriches "imagine, when th...
Categories: climate; environment; Global warming; news; psychology; science; AGW; Climate change;

The end is near! - My Master Thesis

The Way of the Geophysicist | 23 August, 2014
I just started the end of my journey in university. I registered my Master's thesis. This feels like quite the step and I'm very proud I've come so far.
Categories: Science;

Northern Convergence: Vancouver Island, the last of the plan that was...

Geotripper | 23 August, 2014
Our tour of Vancouver Island in British Columbia continued. I've spent several posts (here, here, and here) describing places we saw when we scouted the island a few days before the arrival of our students, and they were really fine places to learn geology. But our students never saw them, for a variety of reasons. Today is the last of the lost stops. The next post will be about the places we did get to see, and really, they are pretty neat as well.
Categories: First Nations; Nanaimo; Nanaimo Group; Northern Convergence; Petroglyph Provincial Park; Vancouver Island;

Friday Music: The War on Drugs - Eyes to the Wind and Burning

A bit Krugman-like with Friday music. I have been listening to this band of late. Not for everyone, but I have been enjoying them.
Categories: odds and ends;

Curiosity update: ‘Driving again’

Red Planet Report | 22 August, 2014
Sol 728-730, August 22, 2014, update on Curiosity from USGS Scientist Ken Herkenhoff: "After much study and discussion, the MSL team decided not to attempt to drill again into the rocks in front of the rover. On Sol 728... [More ... Continue readin...
Categories: Reports; Aeolis Mons; Bonanza King; Curiosity; Gale Crater; Hidden Valley; Mars Science Laboratory; Mount Sharp; MSL; NASA;

Geo 730: August 22, Day 599: A Parting Shot

Outside the Interzone | 22 August, 2014
I mentioned yesterday I wasn't sure if I had decent photo of the tourmaline at this spot. This isn't great, but if you enlarge the photo to full size and look at the darker areas below and to the left of the hammer's chisel tip, you can see acicular (needle-like) black crystals. That's tourmaline. Definitely not jewelry quality. And course, plenty of pyrite and possibly other sulphides shot through the rock. I have rarely seen galena and sphalerite at Quartzville, but the only sulphide I've been able to identify with full confidence at this quarry is pyrite.
Categories: Earth Geo 730; Geology; Oregon;

Magnitude 3.8 Earthquake in Gauteng Province, South Africa.

Sciency Thoughts | 22 August, 2014
The South African Council for Geosciences recorded a Magnitude 3.8 Earthquake in Gauteng Province, slightly before 1.15 am local time on Friday 22 August 2014 (slightly before 11.15 pm on Thursday 21 August GMT). There are no reports of any damage or casualties associated with this event, though many people reported feeling it in the Johannesburg area. The initial quake was followed by two aftershocks, with Magnitudes of 3.2 and 2.0, which occurred roughly one and two minutes after the initial event. 
Categories: African Plate; Divergent Margin; Earthquake; East African Rift; Gauteng Province; Geohazards; Great Rift Valley; Johannesburg; Nubian Plate; Somali Plate; South Africa;

Glacier-calving in Lakes Versus the Sea

Earth Matters | 22 August, 2014
Tidewater glaciers--glaciers that flow from inland mountains all the way into the sea--are perhaps best known for birthing new icebergs in spectacular fashion. As members of James Balog's Extreme Ice Survey team captured in this clip (above) of...
Categories: Uncategorized;

Radio Problems Scrub LightSail's Day-in-the-Life Test

Planetary Society Weblog | 22 August, 2014
A pesky radio problem that has occasionally stymied LightSail has returned, scrubbing the mission's day-in-the-life test....
Categories: None

Geology Sonnet 5

Lounge of the Lab Lemming | 22 August, 2014
Australia is a dry and stable land. No mountain range, no active slipping fault, And yet this plain had lava seas erupt. We call them Kalkarindji flood basalt. It's hard to know just when these rocks were formed. The weathering and rock type c...
Categories: None

So You're Going to Bend...

Outside the Interzone | 22 August, 2014
What to do, what to do? The area has a lot of options for people interested in geology, though some require a bit of a drive. In the city itself, Pilot Butte has great views of Bend and the surrounding landscape- in particular, west to the Cascades and south to Newberry. There is a trail to the top, though I can't imagine it's very interesting compared to others in the area, but there's a paved road to the top too, with ample parking. The last time I was there was at sunset, and the glare to the west made it impossible to see the Cascades well. I'd bet it's spectacular at sunrise, and mornings generally are probably better.
Categories: Geoblogosphere; Geology; Oregon; Volcanoes;

Magnitude 1.1 Earthquake in southwest Herefordshire, England.

Sciency Thoughts | 22 August, 2014
The British Geological Survey recorded a Magnitude 1.1 Earthquake at a depth of 7 km in southwestern Herefordshire, England, slightly before 10.00 pm British Summertime (slightly before 9.00 pm GMT) on Sunday 17 August 2014. This was a small event, and there was no danger of any damage or casualties, though it may have been felt locally.
Categories: Earthquake; England; Eurasian Plate; Glacial Rebound; Herefordshire; UK;

Atlantic Disturbance 96L (Interim Update)

(By Steve Gregory - Substituting for Dr. Masters who is on Vacation.)
Categories: None

The Society for Neuroscience receiving both barrels

Green Tea and Velociraptors | 22 August, 2014
Apologies for the third post about open access publishing in a row. Normal service will resume shortly!
Categories: Publishing;

Philae landing site selection process under way as Rosetta closes to within 60 kilometers of the comet

Planetary Society Weblog | 22 August, 2014
Rosetta spent the week transitioning to a lower orbit from which it continues to observe the comet. This weekend, the mission will select about five landing sites for more detailed study. They have also now estimated the mass of the comet....
Categories: None

East Greenland Current Instabilities

Icy Seas | 22 August, 2014
The coast off north-east Greenland is a grey, cloudy, and icy place. I spent 4 weeks on a ship earlier this summer to place sensors on the ocean floor to measure water currents, salinity, and temperature. The data shall uncover the mystery of how ocean heat 300 m below the surface gets to glaciers to melt them from below year round. My contribution is a small part of a larger effort by German, Norwegian, Danish, American, and British scientists to reveal how oceans change glaciers and impact Greenland's ice sheet, climate, and weather.
Categories: Greenland; Oceanography; continental shelves; eddies; turbulence;

Come Fly With Me, Let’s Fly Let’s Fly Away…

ImaGeo | 22 August, 2014
My friend and colleague Andrew Revkin found this wonderful video on the National Weather Service New York Facebook page and posted it to DotEarth, his N.Y. Times blog, this morning. It's so impossibly cool I just had to share it with you too. As r...
Categories: Environment; Miscellaneous; Remote Sensing; select; Top Posts; biology; birds; Connecticut River; mayflies; remote sensing; tree swallows; Upper Mississippi River; weather radar;

Curiosity won’t drill Bonanza King; will drive on

Red Planet Report | 22 August, 2014
Evaluation of a pale, flat Martian rock as the potential next drilling target for NASA's Curiosity Mars rover determined that the rock was not stable enough for safe drilling. The rock, called "Bonanza King," moved slightly during the mini-dril...
Categories: Reports; Aeolis Mons; Bonanza King; Curiosity; Gale Crater; Hidden Valley; Mars Science Laboratory; Mount Sharp; MSL; NASA;

Counting success in the Baltic Sea ... by Carol Cotterill

It's time for bunting, streamers and excited faces all round as the operational phase of Expedition 347* comes to a successful close.  
Categories: baltic sea; carol cotterill; climate change; expedition 347; fieldwork; greatship manisha; IODP; isotopes; offshore; onshore;

High Plains Anteater

Every time I travel away from home, I make a point of looking at the ground. The main reason for this seemingly odd behavior is to make sure I detect traces of whoever else might be living in my temporary neighborhood. This ichnological practice came in handy last month while I was doing field work in the high plains of central Montana. Located just east of the front range of the Rocky Mountains, this area - which happens to have some lovely Late Cretaceous trace fossils - is also prime real estate for grizzly bears.
Categories: Blog post; ant nest; coprolites; dinosaurs; grizzly bear; insectivorous dinosaurs; insectivory; insects; scat;

Curiosity: Gray drill tailings at Bonanza King

Red Planet Report | 22 August, 2014
Sol 726, August 22, 2014: The Mars Hand Lens Imager (MAHLI) captures the results of drilling at Bonanza King. Sol 726 raw images (from all cameras), and Curiosity's latest location map....
Categories: Reports; Aeolis Mons; Bonanza King; Curiosity; Gale Crater; Hidden Valley; Mars Science Laboratory; Mount Sharp; MSL; NASA;

Atlantic Disturbance 96L Remains Disorganized - For Now…

(By Steve Gregory - Substituting for Dr. Masters who is on Vacation.)
Categories: None

Things That Make a Vertebrate Paleontologist Weep with Joy

Pity the poor invertebrate paleontologist, stuck with the dilemma of not knowing which fossil to measure first. Image by Mark Wilson, in the public domain.
Categories: Paleontology; PLOS ONE; Pterosaurs; bonebed; Caiuajara; pterosaur;

THEMIS: Crater dunes and gullies

Red Planet Report | 22 August, 2014
THEMIS Image of the Day, August 22, 2014. This unnamed crater has gullies along the inner rim and dunes on the crater floor. More THEMIS Images of the Day by geological topic....
Categories: Reports; Arizona State University; ASU; craters; dunes; gullies; Mars Odyssey; NASA; sand; sand dunes; THEMIS; Thermal Emission Imaging System;

Latest: Scenic Saturday: Crossbeds on the Edge

Latest: Unifying Theory of Geology Class

Latest: Bárðarbunga – waiting and watching

Latest: Metamorphic petrology: under pressure and getting stressed?



- The new timelapse timesink

- Are geologists mostly lefties?

All-geo.org