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Tuesday, 30 June 2020

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El bestiario triásico de Mario Lanzas 

Koprolitos [09:56:00]  recommend  recommend this post  (141 visits) info
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Mario Lanzas completa la trilogía de mapas del Mesozoico inspirados en la antigua cartografía medieval con este bestiario triásico que se une a los que ya hemos visto por aquí correspondientes al Jurásico y al Cretácico. Entre la fauna de este período encontramos algunos animales menos conocidos, pero no por ello menos apasionantes como por ejemplo el Tanystropheus y su larguísimo cuello, o el Atopodentatus y su extraña mandíbula. Recuerda que si quieres ver más sobre la obra de [...]

Meanders, Oxbows, and Time 

Earthly Musings [17:19:00]  recommend  recommend this post  (127 visits) info
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My colleague, Brad Dimock, sent along a link recently that I know you will find interesting. It involves a cartoon graphic that shows the way mature rivers meander and evolve through time. You will see meanders turn into oxbow lakes that are cut-off from the main stem, then fill with sediment. You will see point bars grow as meander loops arch outwards. You could look a this for a half hour and not see enough. The site was constructed by Robert Hodgin. Watch it here. Thanks Brad! Here are [...]

Ceraurus globulobatus Trilobite from the Verulam formation 

Views of the Mahantango [06:01:00]  recommend  recommend this post  (77 visits) info
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I've mentioned before that I don't often have luck with finding Trilobites, well the specimen below is a definite exception to the rule. It's a Ceraurus globulobatus from the Verulam formation. I found it a [...]

Geologists Identify Deep-Earth Structures That May Signal Hidden Metal Lodes 

State of the Planet [19:09:50]  recommend  recommend this post  (35 visits) info
Previously unrecognized structural lines deep in the earth appear to signal the locations of giant deposits of copper, lead, zinc and other vital metals near the

Density, Equity, and the History of Epidemics in New York City 

State of the Planet [14:00:13]  recommend  recommend this post  (20 visits) info
The city’s economic success depends on its density. But density also allows contagious diseases to spread. Looking at how the city has managed this conflict in the past could shed light on what the future [...]

Geoethics – from an ethics of exhaustion to one of abundance 

Geology for Global Development [13:15:02]  recommend  recommend this post  (4 visits) info
As this year’s pandemic spreads through Brazil, our own Bárbara Zambelli notices a positive shift in the natural environment. In this article, she wonders, what if we shift from an ethics of exhaustion, to [...]

GIANT'S CAUSEWAY 

ARCHEA [18:30:00]  recommend  recommend this post  (4 visits) info
The Giant's Causeway is a spectacular expanse of interlocking hexagonal basalt columns formed from volcanic eruptions during the Paleocene some 50-60 million years ago.These columns tell a story of the cooling [...]

Nishinoshima: Starke Eruptionen 

Florian Beckers Vulkan-Blog [10:39:49]  recommend  recommend this post  (75 visits) info
Der japanische Inselvulkan gibt keine Ruhe und will mit aller Macht erwachsen werden. So eruptiert der Halbstarke ohne Pause und wächst weiter. Die japanische Küstenwache überflog den Feuerberg am Montag [...]

What’s New and Noteworthy in the Latest Congressional Report on Climate Change 

State of the Planet [18:48:58]  recommend  recommend this post  (29 visits) info
In its new report, the House Select Committee on the Climate Crisis decided to select more solutions — more technologies, more policy options, and more

How Old Is Plate Tectonics? Signals From The Mantle 

Reporting on a Revolution [17:10:00]  recommend  recommend this post  (5 visits) info
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A recent study has used the geochemistry of Archean basalts and komatites to suggest that plate tectonics began by 3.2 billion years ago. The chemical composition of these two volcanic rocks points to active [...]

Geology of the National Parks Through Pictures - Tonto National Monument 

The Geology P.A.G.E. [21:50:00]  recommend  recommend this post  (4 visits) info
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My next post about the Geology of the National Parks Through Pictures was from a rather snowy trip to Arizona where my wife ran an Ironman and then we did a tour of some of Arizona's National Parks, that [...]
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