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Posts treating: "earth"

Monday, 30 March 2015

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April 2nd - Nanoparticles in Sandstone Groundwaters 

Geology in the West Country [2015-03-30 18:25:00]  recommend  recommend this post  (28 visits) info

Bath Geological SocietyThursday April 2nd Nanoparticles in Sandstone GroundwatersProfessor John Tellam, Water Sciences (Hydrogeology), School of Geography, Earth and Environmental Sciences, University of BirminghamThe talk will cover both manufactured nanomaterials and viruses, and what has been discovered about their mobility in the subsurface.7.30 p.m. BRLSI, 16 Queen Square, BathEveryone welcome - visitors £4 - free

Go Back in Time with the Hadza: Last of the First Movie Screening 

BEYONDbones [2015-03-26 17:11:26]  recommend  recommend this post  (19 visits) info
There are fewer people connected to nature now than ever before—and no one connected to it in the same way as the Hadza. One of the last hunter-gather groups on earth, the Hadza have lived sustainably off the bounty of … Continue reading

Died This Day: James Hutton 

Palaeoblog [2015-03-26 14:53:00]  recommend  recommend this post  (22 visits) info
Hutton (June 3, 1726 - March 26, 1797) is considered to be the father of modern geology. He is accredited with proposing that observed geologic processes have been occurring at a uniform rate since the creation of earth, also know as the theory of unconformities. This led to his controversial suggestion that the earth is incredibly old. Hutton began to notice geologic processes on his land

UA and ASU geology and earth science programs top ranked 

Arizona Geology [2015-03-24 02:35:00]  recommend  recommend this post  (19 visits) info

The earth sciences program at the University of Arizona (Geosciences Dept.) was ranked #7 in the U.S. by US News & World Report in new rankings.   ASU ranked #16 (School of Earth & Space Exploration). UA Geosciences' Geology program ranked #3 and was #8 in Geophysics and

Atlantic Ocean overturning found to slow down already today 

Gunnars Geo-Blog [2015-03-23 21:00:00]  recommend  recommend this post  (21 visits) info
     The Atlantic overturning is one of Earth’s most important heat transport systems, pumping warm water northwards and cold water southwards. Also known as the Gulf Stream system, it is responsible for the mild climate in northwestern Europe. Scientists now found evidence for a slowdown of the overturning – multiple lines of observation suggest that in recent decades, the current

Telling Time with the Earth's Magnetic Field 

JOIDES Resolution blogs [2015-03-23 17:30:39]  recommend  recommend this post  (19 visits) info
Paleomagnetism is the study of the Earth’s ancient magnetic field. Such studies have helped lead to important discoveries like seafloor spreading and plate tectonics. Here on the JOIDES Resolution during Expedition 354, one of the main uses of this tool is to find out the age of sediments from the Bengal submarine fan. So how do we actually do that? read

Into the Third Dimension: using Google Maps to know what’s underground 

Metageologist [2015-03-22 22:53:29]  recommend  recommend this post  (29 visits) info
Much of the earth’s surface is covered by sedimentary rocks. These form as sediment settles on the surface. As the types of sediment change – sand to mud to sand again – different layers are formed, some hard some soft. The … Continue reading

Severe Geomagnetic Storm May Light Up the Sky with Irish Green Tonight 

Dan\'s Wild Wild Science Journal [2015-03-17 23:01:32]  recommend  recommend this post  (22 visits) info

Two coronal mass ejections over the weekend have arrived at Earth, and are producing a severe geomagnetic storm this evening. Besides causing long-range radio/GPS communication problems, it is already lighting up the aurora, and there is a decent chance of seeing the sky dance with a colorful display of the northern lights later tonight. A good measure of your chance to see the lights is the Kp index, and as

U.S. hurricanes begin in western Africa’s atmosphere 

AGU Meetings [2015-03-16 19:59:19]  recommend  recommend this post  (22 visits) info
Hurricanes require moisture, the rotation of the Earth, and warm ocean temperatures to grow from mere atmospheric disturbances into tropical storms. But where do these storm cells originate, and exactly what makes an atmospheric disturbance amp up full throttle? A new study accepted for publication in Geophysical Research Letters finds most hurricanes over the Atlantic Ocean that eventually make landfall in North America actually start as intense thunderstorms in western

Imaggeo on Mondays: Retreating Glacier 

GeoLog-The official blog of the European Geosciences Union [2015-03-16 12:54:47]  recommend  recommend this post  (21 visits) info

 Cretaceous; ID,CN,KM,SJ,HK
The Svalbard archipelago is considered to be one of the best places to study the geological history of the Earth because its rocks represent every geological period. This image shows a view from the peak of Fugleberget (569 m a. s. l.; 77º 00’ N, 15º 30’ E) on the south-western coast of the island of Spitsbergen. Glaciation of this geologically diverse area gave rise to a variety of geomorphic features. The most prominent of them, depicted in the picture, is the Hornsund Fjord that cuts [...]

Modelling the state of 'balance' of the Earth's outer layers - isostasy 

Earth Learning Idea [2015-03-16 12:30:00]  recommend  recommend this post  (23 visits) info
Today's new ELI is 'Isostasy 1; modelling the state of 'balance' of the Earth's outer layers'. Isostasy is essentially the principle of hydrostatic equilibrium applied to the Earth, otherwise called ‘buoyancy’. You can model this principle using wooden blocks floating in water and in a denser medium. Lots of activities about the structure of the Earth can be found on our

Inge Lehmann: “A Small Solid Core in the Innermost Part of the Earth” 

Rosetta Stones [2015-03-08 09:18:44]  recommend  recommend this post  (51 visits) info
At the age of 105, Inge Lehmann (1888-1993) looked back on a long, productive life with satisfaction. During her career in seismology, she had made two major discoveries and made other significant... -- Read more on

The Moon at the closest point to the Earth 

Geology in the West Country [2015-03-05 16:09:00]  recommend  recommend this post  (33 visits) info

This is the sunset at the North Pole with the moon at its closest point last week. You can also see the sun below the moon, an amazing photo and not one easily

Study of atmospheric ‘froth’ may help GPS communications 

AGU Meetings [2015-03-02 16:01:41]  recommend  recommend this post  (26 visits) info
Irregularities in Earth's upper atmosphere can distort GPS signals, Scientists are studying these irregularities to help overcome their effects on

Climate Oscillations and the Global Warming Faux Pause 

Real Climate [2015-02-26 20:00:24]  recommend  recommend this post  (25 visits) info
No, climate change is not experiencing a hiatus. No, there is not currently a “pause” in global warming. Despite widespread such claims in contrarian circles, human-caused warming of the globe proceeds unabated. Indeed, the most recent year (2014) was likely the warmest year on record. It is true that Earth’s surface warmed a bit less

NPP Suomi Satellite View of The Ice and Snow 

Dan\'s Wild Wild Science Journal [2015-02-20 00:13:39]  recommend  recommend this post  (35 visits) info

The best views of Earth from space are often from the relatively new NPP/Suomi satellite. The image below is a true-colour view of a snowy and icy Northeast U.S. If you click on the image you will get a MUCH larger version. You should be able to make an 11-14 print from it. Also, check out what Dr. Jennifer Francis has to say about the connection between the loss of

Friggin' Freezin' in the North 

Ontario-geofish [2015-02-17 14:02:00]  recommend  recommend this post  (29 visits) info
Now is the time to talk about freezing and Warming, while I'm waiting for my hair to dry so I can walk the dog. So, here is the latest background oxygen microwave plot.  It gives the satellite measurement of the background microwave field, which can be correlated to lower temperatures.  Sort of like looking at the Earth from distance.  The darn thing shows us slightly warmer, but well

How carbonates behave in the Earth's interior 

Gunnars Geo-Blog [2015-02-16 20:26:00]  recommend  recommend this post  (28 visits) info

     A new DFG Research Unit looks at the behaviour of the mineral under high pressures and temperatures.  FRANKFURT. Carbonates are the most important carbon reservoirs on the planet. But what role do they play in the Earth's interior? How do they react to conditions in the Earth's mantle? These are the questions being asked by a group of scientific researchers from Frankfurt,

Drunk on Geology - Inversion IPA 

The Geology P.A.G.E. [2015-01-29 17:06:00]  recommend  recommend this post  (28 visits) info

The next up in the Drunk on Geology series is Inversion IPA  produced by Deschutes Brewery from Bend, Oregon.An inversion is a naturally occurring phenomena when the temperature goes from normal (warmer near the Earth's surface and cooling upwards) to inverted (colder near the Earth's surface and warming upwards). This frequently happens in areas where a warm front is able to ride on top of a cold front. When the colder air is trapped in place for some reason, this condition can persist [...]

EGU Photo Contest 2015 

GeoLog-The official blog of the European Geosciences Union [2015-01-28 13:00:51]  recommend  recommend this post  (32 visits) info

If you are pre-registered for the 2015 General Assembly (Vienna, 12 – 17 April), you can take part in our annual photo competition! Winners receive a free registration to next year’s General Assembly! The sixth annual EGU photo competition opens on 1 February. Up until 1 March, every participant pre-registered for the General Assembly can submit up three original photos and one moving image on any broad theme related to the Earth, planetary, and space sciences. Shortlisted photos [...] | Impressum