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Posts treating: "patterns"

Tuesday, 26 April 2016

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Maniraptoran Dinosaurs Show No Decline In Disparity Before Mass Extinction 

Reporting on a Revolution [2016-04-26 18:03:00]  recommend  recommend this post  (203 visits) info
Its hard to unravel and unpack complex phenomenon like patterns of faunal turnover during mass  extinctions. The methods chosen, the materials (fossils) available for study and the granularity of the study influences the results. My last post was about a modeling study that concluded that for 40 million years before the mass extinction,  extinction rates exceeded the evolution of new species

This Has Meteorologists Talking Today 

Dan\'s Wild Wild Science Journal [2016-03-29 23:56:53]  recommend  recommend this post  (146 visits) info
An interesting paper came out today, and it has we meteorologists talking. It’s about using sea water temperature patterns in the Pacific to forecast heat waves in the eastern portions of North America. Researchers found that when a certain pattern of water temperatures appeared, there would often be unusually hot weather in the Eastern U.S. about 40-50 days later. A statistical analysis using this method over the years 1982-2013 showed

Sunbathing in the microscopic desert jungle 

Through the Sandglass [2016-03-11 17:11:35]  recommend  recommend this post  (178 visits) info
The desert has its own palette, distinctive and at the same time subtle yet dramatic. There are many factors at work creating the patterns and hues of arid lands - obviously the kind of sand, the kind of rock,

Seesawing sea surface height corresponds with global temperatures, study finds 

AGU Meetings [2015-12-29 17:36:16]  recommend  recommend this post  (172 visits) info
Patterns of sea level changes in the Pacific may be a better way to monitor global temperatures than measuring ocean temperatures at the sea surface, new research finds. Those changes in sea level can explain observed global temperature trends and even predict how much temperatures will change during the current El Niño event, according to the

Forecast Sees a Stronger El Niño 

State of the Planet [2015-05-28 16:58:44]  recommend  recommend this post  (107 visits) info
El Niño is back, and it looks like it will be getting stronger. While it’s difficult to predict the impact precisely, El Niño can alter patterns of drought and rainfall around the

Educator How-To: Crystals, Geometry and Chemistry 

BEYONDbones [2015-01-27 15:00:55]  recommend  recommend this post  (168 visits) info
Math is beautiful and inescapable. Especially in nature, patterns and equations just keep showing up.  The path of an orbiting planet, the growth of a nautilus, arrangements of leaves on a stem, the efficient packing of a honeycomb; we can … Continue reading

My latest paper: Patterns of movement at the Ventnor landslide on the Isle of Wight 

The Landslide Blog [2014-12-19 09:10:02]  recommend  recommend this post  (171 visits) info

 GB
In my latest paper, just published in the journal Landslides, my co-authors and I examine monitoring data for the Ventnor landslide in southern

Director of the new Environmental Dynamics and GeoEcology (EDGE) Institute 

WeBlog Aragosaurus [2014-12-09 10:33:00]  recommend  recommend this post  (127 visits) info

 US
The College of Natural and Agricultural Sciences (CNAS) invites applications for a tenured senior rank position for Director of the new Environmental Dynamics and GeoEcology (EDGE) Institute. The position will occupy a newly endowed chair and will include a tenured faculty position in one of the departments of CNAS. The successful candidate will lead a diverse group of faculty working in environmental change, global change biology, paleoecology, earth sciences, and conservation biology over [...]

Constellaria Bryozoan Fossil 

Louisville Area Fossils [2014-10-26 02:30:00]  recommend  recommend this post  (111 visits) info

 Ordovician; US
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Here is a picture of a Constellaria bryozoan fossil. It is known for its star like patterns on the fossil surface. Recently, it was found in Maysville, Kentucky, USA. The Upper Ordovician Period formations found at that location are Grant Lake (Maysvillian) and Bull Fork (Richmondian). Thanks to Kenny for the image. Past related blog posts:

ESRI’s MOOC Going Spatial: Week 5 

Digital Geography [2014-10-01 21:00:13]  recommend  recommend this post  (69 visits) info
This week the MOOC will concentrate on patterns and hypothesis about patterns. Exercises will concentrate on “hotspots” and patterns in crime analysis. So the keyword in this lessons might be visualization. As it often defines our visual footprint the MOOC also focusses on classification approaches. ESRI’s MOOC infrastructure In the last weeks it was a little bit hard to understand the quizzes and the explanation for a right or wrong answer. In this week the quizzes have [...]

This Week's Geo-Quiz: Geologic Maps 

About Geology [2014-05-18 02:18:21]  recommend  recommend this post  (60 visits) info
If you think you know your way around, think again. A geologic map will transform the way you see your stomping grounds. The familiar features--roads, cities, buildings and all that--are grayed out while the aboriginal land itself shines forth in colors, patterns and lines. Sprinkling this strange scene are symbols and markings with purely geological significance, things you may never have known existed. I'm saying beware: the geologic maps quiz may leave you all at sea. And I think that even [...]

Sherlock Holmes And Long Term Evolutionary Patterns In Dinosaur Body Size 

Reporting on a Revolution [2014-05-15 17:38:00]  recommend  recommend this post  (81 visits) info

 Paleogene,Cretaceous; IN
This week's (in Pune, India) Sherlock Holmes Elementary featured a murder mystery involving a smuggled dinosaur fossil. The fossil is believed by some palaeontologists to be entombed in rocks of the earliest Paleocene, making that dinosaur a survivor of the end Cretaceous mass extinction. Other palaeontologists strongly disagree with this survivor fauna scenario, which the drama turns into

Megistocrinus sp. crinoid calyx from Marilla, NY 

Views of the Mahantango [2014-04-19 09:01:00]  recommend  recommend this post  (92 visits) info

 RU,US
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It's not a great fossil but the specimen below is one of the few Crinoid calyxes that I have found. It's a weathered Megistocrinus sp. calyx that I found in the Deep Run mbr. of the Moscow formation.I found it in a creekside exposure of Buffalo Creek near Marilla, NY.Here is the matrix with the bottom of the calyx sticking out on the right hand side.A closer view of the side where you can see some of the geometry of the plates that make up the calyx. along the top of the calyx are some round [...]

Will Yellowstone Erupt in Our Lifetime? 

Geology.com News [2014-04-10 13:59:36]  recommend  recommend this post  (49 visits) info
“Yellowstone is like a conveyer belt of caldera clusters,” he says. “By investigating the patterns of behavior in two previously completed caldera cycles, we can suggest that the current activity of Yellowstone is on the dying cycle.” Related: The Volcano Beneath

This Week's Geo-Quiz: Geologic Maps 

About Geology [2013-11-18 01:18:21]  recommend  recommend this post  (83 visits) info
If you think you know your way around, think again. A geologic map will transform the way you see your stomping grounds. The familiar features—roads, cities, buildings and all that—are grayed out while the aboriginal land itself shines forth in colors, patterns and lines. Sprinkling this strange scene are symbols and markings with purely geological significance, things you may never have known existed. I'm saying beware: the geologic maps quiz may leave you all at sea. And I think [...]

Puesto de trabajo profesor Macroevolution en Iowa State University 

WeBlog Aragosaurus [2013-09-13 19:49:00]  recommend  recommend this post  (69 visits) info
The department of Ecology, Evolution & Organismal Biology (EEOB) at Iowa State University seeks a creative individual employing and/or developing macroevolutionary and phylogenetic comparative approaches to address key questions in the evolution of organismal systems and biological diversity. Possible research areas include but are not limited to: elucidating rates and patterns of evolutionary change in adaptive traits, linking species-level changes in phenotypes with environmental change, [...]

Why Waddle? 

March of the Fossil Penguins [2013-08-29 18:12:13]  recommend  recommend this post  (100 visits) info
One of the patterns that stands out to me in the broad view of penguin evolution is that their skeletal adaptations seem to have proceeded from the ground up. By this I mean that even the earliest penguins that show up in the fossil record have very short, stout feet.  Over the course of penguin

Geological Movie Review of The Day After Tomorrow - Part 5 

The Geology P.A.G.E. [2013-07-09 21:59:00]  recommend  recommend this post  (83 visits) info
Geological Movie Review of The Day After Tomorrow - Overview - Super Storms -- Global Storms -0:31:40 - In the movie, the northern hemisphere is being consumed by three continental sized storms. One is located on North America where "Canadians are reporting tremendous circulation moving down from the Arctic". The second is in Russia where "there's a low pressure system unlike anything we've seen". The third one is over Scotland. They also mention Australia, which has recorded the strongest [...]

Seeing Geology in Patterns 

Looking for Detachment [2013-06-21 19:45:00]  recommend  recommend this post  (70 visits) info
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"This month’s Accretionary Wedge topic is “Seeing Geology Everywhere.” Like many geologists, I often see geology in places where there are no rocks. ... "Do you see geology in unexpected places? Do you often find yourself viewing the world through geology-tinted glasses? Do you have any adorable cat pictures that could be used to illustrate geology?" {&nbsp}{&nbsp}–Evelyn

"We are now in a new climate regime…" 

Riparian Rap [2013-06-11 03:26:00]  recommend  recommend this post  (102 visits) info
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Jeff Masters said it well: "If it seems like getting two 1-in-100 to 1-in-500 year floods in eleven years is a bit suspicious--well, it is.  Those recurrence intervals are based on weather statistics from Earth's former climate. We are now in a new climate regime with more heat and moisture in the atmosphere, combined with altered jet stream patterns, which makes major flooding disasters more likely"Photos of flooding in Central Europe from the Atlantic.If you flip a quarter 10 times and [...]
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