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

LATEST FROM THE GEOBLOGOSPHERE:

You Had Me at Seaweed-based Glitter

Deep Sea News | 26 February, 2017
As I was doing my morning internet perusing, I came across this fun video of a glittery bath bomb making a heinous mess is someones tub.
Categories: Conservation & Environment; Favorite Species; Intertidal; glitter; LUSH; seaweed;

Professors Greg Wiles and Meagen Pollock earn a field experience grant from the Keck Geology Consortium

Wooster Geologists | 26 February, 2017
Wooster, Ohio -- Two Wooster Geology Professors, Meagen Pollock and Greg Wiles, have a exciting new grant from the Keck Geology Consortium to fund a five-week research program for first-year and sophomore students interested in the Earth Sciences. ...
Categories: Uncategorized;

Kahlotus in Winter

Kahlotus has never really been a thriving town, but then it has not drifted into ghost town status either. Due to good roads and better cars the commercial businesses that served the already sparse population have faded such that there is an appearance of decay with empty commercial buildings.  
Categories: Towns and cities;

New Banner picture! Cobequid-Chedabucto Fault at Cape Chignecto, Nova Scotia

Earth Science Society | 26 February, 2017
Figure 1. The western extremity of the Cobequid Chedabucto Fault complex in Nova Scotia. The Cape in the distance is called Cape Chignecto It is a glorious view from the beach at Advocate Harbour. We look West towards Cape Chignecto. The coastline ...
Categories: General geoscience; Geoheritage; Nova Scotia; outcrops; tectonics;

Eruptive episode on Mount Fuego, Guatemala.

Sciency Thoughts | 26 February, 2017
Mount Fuego a stratovolcano (cone shaped volcano made up of layers of ash and lava) that forms part of La Horqueta volcanic complex in the southern part of Guatemala underwent a major eruptive episode on Friday 24-Saturday 25 February 2017. The volcano began erupting at about 11.30 pm local time on Friday 24, and went on to produce a series of ash columns reaching 5 m high on the morning of Saturday 25, which prompted the Washington Volcanic Ash Advisory Center to issue a warning to aircraft in the area. The volcanic activity subsided during the afternoon, with a series of smaller ash columns. Three lava flows have been sighted on the volcano, the longest about 1600 m in length.
Categories: Caribbean Plate; Central America; Cocos Plate; Geohazards; Guatemala; La Horqueta Volcanic Complex; Middle American Trench; Mount Fuego; Subductive Plate Margin;

The Dutch love affair with natural gas: A cautionary tale for the United States?

Resource Insights | 26 February, 2017
The story sounds familiar. For decades oil and natural gas drilling have been proceeding and creating prosperity for those involved. At some point significant earthquakes occur in areas where they were formerly very rare or nonexistent. Those quakes are linked to oil and gas drilling and production. The industry denies the link.
Categories: None

Six-legged Superfood for Chirpier Cities

The Nature of Cities | 26 February, 2017
"Yet these you may eat among all the winged insects which walk on all fours: those which have above their feet jointed legs with which to jump on the earth." --Leviticus 11:21 Masaka On a recent trip to the town of Masaka, Uganda, I met a number of women who have taken up cricket farming ... Continue reading Six-legged Superfood for Chirpier Cities '
Categories: Essay; People & Communities; Science & Tools; Business; Culture; Economics; Food; Livability; Sustainability; What is urban nature?; Wildlife People Interactions;

Kakanj – an enormous mine waste landslide in Bosnia last Friday

The Landslide Blog | 26 February, 2017
On Friday of last week, an enormous landslide occurred at Kakanj in Bosnia.  It is reported that this is a failure of a huge waste pile from the Kakanj Coal Mine.  Reports indicate that 150 people have been forced to evacuate their homes in the villages of Ribnica and Mramor.  The landslide has also blocked a river.
Categories: landslide report; Bosnia; coal; Europe; featured; mine; mine waste; spoil; waste;

Asteroid 2017 DF passes the Earth.

Sciency Thoughts | 26 February, 2017
Asteroid 2017 DF passed by the Earth at a distance of 802 400 km (2.09 times the average distance between the Earth and the Moon, 0.54% of the average distance between the Earth and the Sun),slightly before 9.30 am GMT on Sunday 19 February 2017. There was no danger of the asteroid hitting us, though had it done so it would have presented no threat. 2017 DF has an estimated equivalent diameter of 9-28 m (i.e. it is estimated that a spherical object with the same volume would be 9.28 m in diameter), and an object of this size would be expected to explode in an airburst (an explosion caused by superheating from friction with the Earth's atmosphere, which is greater than that caused by simply falling, due to the orbital momentum of the asteroid) in the atmosphere between 30 and 17 km above the ground, with only fragmentary material reaching the Earth's surface.
Categories: 2017 DF; Apollo Group Asteroids; Asteroids; Near Earth Asteroids; Solar System;

Something Harde to believe…

RealClimate | 25 February, 2017
A commenter brings news of an obviously wrong paper that has just appeared in Global and Planetary Change. The paper purports to be a radical revision of our understanding of the carbon cycle by Hermann Harde. The key conclusions are (and reality in green):
Categories: Carbon cycle; Climate Science; IPCC;

A nice storage bump for Colorado River reservoirs, but they’re still pretty empty

Inkstain (John Fleck) | 25 February, 2017
Talking this week to members of the Colorado River water governance brain trust at the Family Farm Alliance's annual gathering in Las Vegas, there was a weird vibe about the big snowpack building in the Rockies.
Categories: Arizona; California; cawater; water;

Three confirmed fatalities as Atlantic Storm Doris sweeps across UK.

Sciency Thoughts | 25 February, 2017
Parts of the UK are clearing up after Atlantic Storm Doris swept across the nation on Thursday 23 February 2017, bringing with it winds gusting as high as 140 kilometres per hour. The storm brought down trees, damaged power supplies and tore up fences across the country, causing a series of traffic accidents and widespread disruption to transport networks. Many people were left without power in Northern Ireland, Wales and England, flights were cancelled from airports and the Port of Liverpool was forced to close for part of the day.
Categories: Atlantic Ocean; England; Storms; UK; Wales;

Someone C.A.R.E.S.

RealClimate | 25 February, 2017
Do we need a new venue for post-publication comments and replications?
Categories: Climate Science; Scientific practice;

Magnitude 5.9 Earthquake in Northern Province, Zambia.

Sciency Thoughts | 25 February, 2017
The United States Geological Survey recorded a Magnitude 5.9 Earthquake at a depth of 26.7 km roughly 846 km east of Kaputa in Northern Province, Zambia, slightly after 2.30 am local time (slightly after 0.30 am GMT) on Friday 24 February 2017. There are no reports of any damage or casualties arising from this quake, though people have reported feeling it across much of northeastern Zambia, and it is likely to have been felt in parts of neighbouring Tanzania and the Democratic Republic of Congo.
Categories: Africa; African Plate; Divergent Margin; Earthquakes; East African Rift; Geohazards; Great Rift Valley; Northern Province; Nubian Plate; Rifting; Somali Plate; Southern Africa; Zambia;

Concretions in the Millboro Formation, Fort Valley

Mountain Beltway | 25 February, 2017
Yesterday was a gorgeous late spring day* in the Fort Valley, and I was delighted to engage in my first day of field work of 2017. Skies were clear, the temperature soared to a decadent 80°F, and I thrilled to be out geologizing!
Categories: 3D; concretions; devonian; shale; valley and ridge; virginia; featured;

Curiosity update: A weekend full of remote sensing

Red Planet Report | 25 February, 2017
Sol 1620-22, February 24, 2017, update by USGS scientist Lauren Edgar: On Sol 1619, MAHLI experienced a fault and did not finish its planned imaging, so unfortunately the subsequent arm and mobility activities did not execute.  That means that the ...
Categories: Reports; Aeolis Mons; Aziscohos; Bagnold Dunes; Chandler Ridge; Chase Brook; Curiosity; Depot Mountain; Gale Crater; Mars Science Laboratory; Mount Sharp; MSL; Murray Formation; NASA;

Loxodonta cyclotis: African Forest Elephant population undergoes sharp decline in Minkébé National Park, Gabon.

Sciency Thoughts | 25 February, 2017
African Forest Elephants (Loxodonta cyclotis) are found in undisturbed forests in Central Africa. They were not recognised to be a separate species until 2010 largely due to the remote locations where they live, and are still poorly understood by zoologists and conservationists. Generic studies have found that they are not just distinct from other African Elephants, they are more closely related to the extinct European Straight-tusked Elephant (Palaeoloxodon antiquus) than to either of their living relatives. Despite living in areas hard to reach, these Elephants are thought to be particularly vulnerable to Human activities such as hunting, largely in the form of poaching for the (illegal) ivory trade and deforestation (which fragments the large areas of forests the Elephants leave, resulting in a network of forest patches too small to use separated by unsuitable open habitats.
Categories: Africa; African Forest Elephant; Central Africa; CITES; conservation; Elephants; Gabon; Hunting; Law Enforcement; Red List of Threatened Species; Tropical Forests;

Field Photos: Western Uplands And Giant Plagioclase Basalts

Reporting on a Revolution | 25 February, 2017
Last Sunday I visited Chavand fort near the town of Junnar, about 110 km north of Pune. This is a rugged terrain marked by several NW-SE oriented ridges separated by broad U shaped valleys. In the map below the black cross marks the location of Chavand. WGE refers to the Western Ghat Escarpment and KCB refers to the Konkan Coastal Belt. Trekkers familiar with this region will recognize the hill ranges, especially the Bhimashankar range and the Harishchandragad range. And near the town of Junnar is Shivneri fort, birthplace of the Maratha king Shivaji.
Categories: deccan volcanics; geomorphology; trekking; western ghats;

Henry Mancini and the fountain at the Bellagio Hotel

Inkstain (John Fleck) | 25 February, 2017
Bellagio fountain, February 2017
Categories: Colorado River; water;

Living the Dream, Day 6 – Blacktail Canyon Serenade

Watch for Rocks | 25 February, 2017
It has been a while, hasn't it? The last time we were living the dream we had just finished a fine foray to the waterfall at Elves Chasm, near river mile 117 of the Colorado River in Grand Canyon. Since then, I have not tumbled into the whirling waters, nor have I been spinning around in a swirling rapid of monumental magnitude (well, not literally, anyway). But life happens. We get busy and lose track of time. Our mental mojo wanders in another direction. My last post was a video I made about my Thanksgiving with friends. Well...enough of this lollygagging. It's almost March, for Pete's sake! Get on with it! It's time to climb back into the boat, and have a leisurely look around while our boatmen continue to do all the work.
Categories: None

A Place Where Water Once Was But Was No Longer, But Once Again Was - Travels in Death Valley

Geotripper | 25 February, 2017
I'm finally not "liveblogging the deluge" anymore. I thought back at the beginning of January that I was monitoring a historic flood event that was going to be over with in just a few days. Somehow, new storms kept blowing through, and I was watching and monitoring flood activity around the state. Those "few days" turned into a six-week series of observations. But now that the storm activity has subsided a bit, the observations are going to be in the past tense. I didn't have much in the way of internet access over the holiday weekend, and we went and stared into the abyss of the storm with little to defend us but waterproof jackets and the nylon walls of our tents. We explored Death Valley National Park during one of its most intense storms of the year.
Categories: Death Valley; Fossil Falls; Liveblogging the Deluge; Owens Valley; Pleistocene Ice Age; Pluvial lakes; Red Rock Canyon State Park;

This deep-sea jelly looks like something from a dream

Deep Sea News | 25 February, 2017
A beautiful jelly was just sighted by the Ocean Explorer as they cruise the deep sea near American Samoa live at oceanexplorer.noaa.gov. According to Dr. Allen Collins-a zoologist at NOAA and the Smithsonian-this little jelly is a rhopalonematid trachymedusa.
Categories: Biology; Cnidaria; Education; Jellyfish; Open Access; Pelagic; Plankton; Seamount;

HiRISE: Group of thin layers

Red Planet Report | 24 February, 2017
Group of thin layers. Beautiful Mars series....
Categories: Reports; Beautiful Mars; High Resolution Imaging Science Experiment; HiRISE; layers; Mars Reconnaissance Orbiter; MRO; NASA; University of Arizona;

Opportunity: MI at Rocheport

Red Planet Report | 24 February, 2017
Sol 4652, February 24, 2017. The Microscopic Imager closed in on part of the surface at Rocheport, the exposed, wind-swept surface at the head of Willamette Valley. Click image (2 MB) to enlarge it. Opportunity raw images, its latest mission ... Cont...
Categories: Reports; Cape Tribulation; Endeavour Crater; Mars Exploration Rover; MER; NASA; Opportunity; Rocheport; Willamette Valley;

THEMIS: Ross Crater gullies

Red Planet Report | 24 February, 2017
THEMIS Image of the Day, February 24, 2017. This VIS image shows Ross Crater in Aonia Terra. The crater rim is dissected by gullies, however these gullies are much smaller than those in yesterday's image. More THEMIS Images of the ... Continue read...
Categories: Reports; Aonia Terra; Arizona State University; ASU; gullies; Mars Odyssey; NASA; Ross Crater; THEMIS; Themis Image of the Day; Thermal Emission Imaging System;

Latest: #365climateimpacts: Snow, ice, flooding, and football (February 1-15)

Latest: Unifying Theory of Geology Class

Latest: Recommended sources of information on Katla volcano

Latest: Speed of metamorphism: heating up



- The new timelapse timesink

- Are geologists mostly lefties?

All-geo.org