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Structures in the Aru Mountains giant avalanche deposits

The Landslide Blog | 25 October, 2016
The second enormous Aru Mountains avalanche in Tibet that I featured yesterday have been imaged by an innovative start-up satellite imagery company called Planet, which is launching a constellation of satellites that it is building itself.  The quality of the image of the second Aru Mountain avalanche is fantastic, good enough to draw out some very interesting features:-
Categories: landslide images; analysis; avalanche; East Asia; featured; satellite; tibet;

The Hawai'i That Was: Rising Out of Depression on Kaua'i, and Sleeping Giants

Geotripper | 25 October, 2016
There's a different part of Kaua'i, one that doesn't quite fit the image of dramatic high cliffs plunging into the sea. It's a lowland, a region of lesser hills and ridges that only rise a thousand feet or so, covered largely by rainforest. It's unusual because Kaua'i is often imagined as a single deeply eroded volcano that should have been evenly eroded from all directions. It turns out to be far more complicated than that. In fact, it can be thought of as two shield volcano complexes, one of which developed on top of another.
Categories: Anahola Ridge; Caldera; Haupu Ridge; Kapa'a; Kaua'i; Lihue Depression; Nounou Ridge; Raiders of the Lost Ark; Sleeping Giant; The Hawai'i that was;

What is stormwater? And how did we get to where we are today?

Highly Allochthonous | 25 October, 2016
For a week in October 2016, I had over 38,000 twitter followers as I took a turn hosting the @realscientists account. Of course, I spent a bunch of my time preaching the gospel of stormwater management. Here are tweets over two days synopsizing its history in 140 character bites.(Please note that the account is hosted by a different scientist each week. The image attached to these tweets is that of the current @realscientists host, not a crazy makeover of Anne.)
Categories: by Anne; hydrology; stormwater; Twitter; urban hydrology;

2016 AGU/TG Field Trip!

The Traveling Geologist | 24 October, 2016
Join us for our first ever TravelingGeologist field trip! Scroll down for more information and RSVP.
Categories: Field Trip; blueschist; California; eclogite; field trip;

HiRISE: Dunes atop Noachis Terra crater infill

Red Planet Report | 24 October, 2016
Dunes atop crater infill. Beautiful Mars series....
Categories: Reports; Beautiful Mars; dunes; High Resolution Imaging Science Experiment; HiRISE; Mars Reconnaissance Orbiter; MRO; NASA; Noachis Terra; sand dunes; University of Arizona;

Curiosity: Mastcam pair at Sebina drill hole

Red Planet Report | 24 October, 2016
Sol 1498, October 23, 2016. The Mastcam shot the Sebina drill hole with both lenses, the 34mm wide-angle lens (top right) and the 100mm. The color difference between them may result from the 3h+ that elapsed between the two images. ... Continue readi...
Categories: Reports; Aeolis Mons; Curiosity; Gale Crater; Mars Science Laboratory; Mount Sharp; MSL; Murray Formation; NASA; Sebina; Stimson Formation;

October 2016 Puzzler

Earth Matters | 24 October, 2016
Every month on Earth Matters, we offer a puzzling satellite image. The October 2016 puzzler is above. Your challenge is to use the comments section to tell us what part of the world we are looking at, when the image was acquired, what the image s...
Categories: EO's Satellite Puzzler;

THEMIS: Yardangs in Memnonia Sulci

Red Planet Report | 24 October, 2016
THEMIS Image of the Day, October 24, 2016. The elongated hills in this VIS image are a feature termed yardangs. Yardangs are formed by wind activity in regions where the surface material is soft and not well cemented. The elongation ... Continue read...
Categories: Reports; Arizona State University; ASU; Mars Odyssey; Memnonia Sulci; NASA; THEMIS; Themis Image of the Day; Thermal Emission Imaging System; yardangs;

New paper: Warm Archean oceans reconstructed from oxygen isotope composition of early-life remnants

Earth & Solar System | 24 October, 2016
The following summary has been written by Dr Romain Tartèse, who is a visitor in the SEES University of Manchester Isotope Group.
Categories: Earth; Laboratory; Archean; chert; oxygen isotopes; sea temperatures;

Highlights—Imaging Cement Zonation

JSR Paper Clips | 24 October, 2016
Many diagenetic events can be recorded in rocks as only subtle cement zones or corrosion surfaces on mineral faces. To better observe and characterize these features, Buckman and others illustrate the application of Charge Contrast Imaging (CCI) to examine diagenetic features including zoning, twinning, fractures, and geochemical changes. Applying the technique to a complex Cretaceous coquina carbonate and Devonian reef carbonate sample illustrates results comparable to SEM-Cathodoluminescence (and optical-CL), but with several advantages. 1) CCI does not suffer from image smearing, due to latency of the red light phase within CL, a different type of charge. 2) CCI typically is faster than SEM-CL. 3) CCI appears to highlight fabric and cement details within regions of carbonate that appear nonluminescent under CL. Nonetheless, as with cathodoluminescence, the specific character of CCI varies as a function of elemental composition and lattice dislocations.  
Categories: None

GIGAmacro views of komatiite

Mountain Beltway | 24 October, 2016
Erik Klemetti posted today at Eruptions about komatiite, which is apropos, considering I just finished imaging some samples of that ultramafic volcanic rock. Have a look at three samples from Barberton Greenstone Belt here, each from the 3.27 Ga Weltevreden Formation:
Categories: africa; archean; canada; GEODE; gigapan; igneous; m.a.g.i.c.; ontario; south africa; volcano;

Lessons of Climate Resilience in New York City

State of the Planet | 24 October, 2016
The Earth Institute hosted a panel focused on how New York City - and other cities like it - can take steps to become stronger and more resilient in the face of climate change....
Categories: Climate; Adaptation; climate change; climate resilience; extreme weather; Initiative on Extreme Weather and Climate; MPA in Environmental Science and Policy News; New York City; resiliency; resilient communities; Sustainability Policy and Management News; Urban Design; urbanization;

ExoMars: Video of Oct 20 Schiaparelli, TGO briefing

Red Planet Report | 24 October, 2016
Video replay of ExoMars media briefing on 20 October at ESA's Operations Centre in Darmstadt, Germany, regarding Schiaparelli and the Trace Gas Orbiter. [Note: This briefing was held before the Schiaparelli crash site was imaged by the Context Came...
Categories: Reports; ESA; European Space Agency; ExoMars; ExoMars 2016; Meridiani Planum; Roscosmos; Schiaparelli lander; TGO; Trace Gas Orbiter;

U Arkansas Geoscience Open Faculty Positions

Seismos | 24 October, 2016
We have two entry-level academic positions open till Nov 11, 2016. Please spread the word to any potential candidates.
Categories: None

Hurricane Seymour Gains Steam in East Pacific

Dr. Jeff Masters' WunderBlog | 24 October, 2016
More than three weeks of quietude in the Eastern Pacific has come to an end with the development of Hurricane Seymour, which could become the region's sixth major hurricane of the year. Seymour gained hurricane status about 450 miles southwest of M...
Categories: None

Relish our local water

Oakland Geology | 24 October, 2016
Next month, East Bay MUD will finish shutting down its 80-year-old Orinda water treatment plant for six months of rehabilitation. For the last few weeks, Oakland residents have been drinking water from our own local San Pablo and Upper San Leandro reservoirs.
Categories: Oakland streams and water;

Can Climate Litigation Support Global Action on Climate Change?

State of the Planet | 24 October, 2016
On Nov. 2-3, the Columbia Center on Sustainable Investment, in partnership with the Sabin Center for Climate Change Law and the UN Sustainable Development Solutions Network, will host the 11th Annual Columbia International Investment Conference, ent...
Categories: Climate; Sustainability; CCSI Annual Conference; Columbia Center on Sustainable Investment; Paris Climate Agreement; Sabin Center for Climate Change Law;

What's the difference between porosity and permeability?

Earth Learning Idea | 24 October, 2016
Our new ELI just published is 'Does my rock hold water and will water flow through it?' This activity investigates the differences between porosity and permeability.
Categories: Earth materials;

Wacky Hole

Imagine you've acquired a long-standing scenic tourist attraction, consisting of a series of impressive show caves at the end of a lush limestone valley with a gentle river running through it, the water feeding a Victorian paper mill. What might you do to draw even more visitors in? Some extra scenic gardens, maybe? A water feature or two? Or do you haphazardly slap in a truckload of enormous, garishly coloured, hilariously dated dinosaur models and a pirate-themed crazy golf course? If you're 'circus entrepreneur' Gerry Cottle, there can only be one choice.
Categories: fibreglass; King Kong; Somerset; ugly ugly dinosaurs; Wookey Hole;

Building Urban Science to Achieve the New Urban Agenda

The Nature of Cities | 24 October, 2016
The New Urban Agenda, being adopted at Habitat III, requires a coherent and legible global urban scientific community to provide expertise to direct and assess progress on urban sustainability transformations. As we have commented in Nature's speci...
Categories: Essay; Science & Tools; Governance; Habitat III; Justice; Policy; Resilience; Sustainability; Tools; What is urban nature?;

People of the Land

Open Mind | 24 October, 2016
Climate deniers hate the surface temperature data sets, but they love to insult 'em. That's because they show how much the globe has warmed ... and that's something deniers don't want to admit, not even to themselves. They live in ... Continu...
Categories: Global Warming;

Imaggeo on Mondays: Why does a Norwegian glacier look blue?

EGU Geolog | 24 October, 2016
This picture shows the outlet glacier Engabreen running down from the plateau of Svartisen in Norway. Svartisen ice cap comprises two glacier systems of which the Vestre (western) Svartisen is Norway's second largest glacier. Located right at the polar circle, Svartisen covers a total of 369 km² of the Nordland region. These coastal mountains accumulate a snowpack of 5-7 m depth through the winter season, which feeds the glaciers.
Categories: Climate; Cryospheric Sciences; Early Career Scientists; Imaggeo; Imaggeo on Mondays; Regular Features; Cryosphere; glaciers; outlet glacier Engabreen; Svartisen;

Examining the chemistry of mushrooms: a valuable tool for archaeology? Angela Lamb

The edible oyster mushroom, Pleurotus ostreatus, in Mere
Categories: archaeology; Centre for Environmental Geochemistry; Dr Angela Lamb; Dr David Wilkinson; Dr Hannah O'Regan; fungi; Liverpool John Moores University; mushroom; stable isotopes; University of Nottingham;

Follow news sources you like with RSS reader in Opera

Olelog | 24 October, 2016
Want more personalized content on your browser? Opera for computers has RSS support for its personalized news reader.
Categories: Uncategorized;

The mysterious Tibetan ice avalanches of summer 2016

The Landslide Blog | 24 October, 2016
At the start of the summer, a somewhat mysterious giant ice avalanche occurred in the Aru mountains above Lake Aru Co, the first of a pair of Tibet avalanches in this region.  This was covered by Xinhua, with a strong sense of surprise.
Categories: landslide report; avalanche; climate change; E Asia; featured; tibet;

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