Posts treating: "earth"
Monday, 30 March 2015
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
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
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
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
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
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?
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
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
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
GeoLog-The official blog of the European Geosciences Union [2015-03-16 12:54:47]
recommend this post
(21 visits) 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 [...]
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
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 ScientificAmerican.com
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
Irregularities in Earth's upper atmosphere can distort GPS signals, Scientists are studying these irregularities to help overcome their effects on
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
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
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
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,
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 [...]
GeoLog-The official blog of the European Geosciences Union [2015-01-28 13:00:51]
recommend this post
(32 visits) AT,TH
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 [...]