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Posts treating: "glaciers"

Thursday, 15 June 2017

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Field Photo: Glacial Erratic 

Reporting on a Revolution [2017-06-15 19:03:00]  recommend  recommend this post  (151 visits) info
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Inspired by this xkcd comic: I saw quite a few of these glacial erratics in the Dhauliganga river valley around the villages of Duktu and Dantu. Here is my friend sitting on one of them. This boulder is a high grade gneiss. It is an erratic because the surrounding bedrock is all low grade phyllite and slate. The source of the high grade gneiss boulder is the snow capped range you see

Crushing Ice to Learn About Glaciers & Icy Moons 

State of the Planet [2016-06-06 20:53:11]  recommend  recommend this post  (225 visits) info

 US
To understand how quickly ice from glaciers can raise sea level or how moons far across the solar system evolved to hold vast, ice-covered oceans, we need to be able to measure the forces at work. A new instrument designed and built at Lamont does just

Varves along Hawk Creek, Washington 

Mountain Beltway [2016-06-01 14:59:12]  recommend  recommend this post  (144 visits) info
Heading into the Columbia River Plateau, Callan and his colleague Bill Richards make a detour in search of some varves from Glacial Lake Columbia. They find them, a credit to the authors of "Washington Rocks!" - the new book from Mountain

Glaciotectonic thrust at Waubonsee Community College 

Mountain Beltway [2016-05-26 14:24:11]  recommend  recommend this post  (160 visits) info

 US
Glaciers can cause thrust faults! Explore an example from a trench south of

Study Downgrades Groundwater Contribution to Sea Level Rise 

State of the Planet [2016-05-03 16:31:59]  recommend  recommend this post  (198 visits) info
Some research suggests that, along with melting ice sheets and glaciers, the water pumped from underground for irrigation and other uses, on the rise worldwide, could contribute substantially to rising sea levels over the next 50 years. A new study published in Nature Climate Change says the magnitude is substantially

Research Summary: Shifts In Diversity And Function Of Lake Bacterial Communities Upon Glacier Retreat 

Lake Scientist [2016-02-24 21:28:49]  recommend  recommend this post  (142 visits) info
Abstract Global climate change is causing a wastage of glaciers and threatening biodiversity in glacier-fed ecosystems. The high turbidity typically found in those ecosystems, which is caused by inorganic particles[...] The post Research Summary: Shifts In Diversity And Function Of Lake Bacterial Communities Upon Glacier Retreat appeared first on Lake

Turning climate data into art 

AGU Meetings [2016-02-10 23:08:39]  recommend  recommend this post  (179 visits) info
Artist and scientist Jill Pelto turns climate data into watercolors, making visible the grim effects of climate change on forests, marine ecosystems and

A Prize-Winner Explains His Work 

State of the Planet [2016-01-28 17:22:24]  recommend  recommend this post  (120 visits) info
Nicolás Young studies glaciers and ice sheets, and how they’ve changed in the past. His work earned him the Blavatnik Award for Young Scientists last fall, which came with a $30,000 prize. You can hear him talk about his research in this new video, produced by the Blavatnik Family

Imaggeo on Mondays: The retreating glaciers of the Svaneti Range, Georgia 

GeoLog-The official blog of the European Geosciences Union [2016-01-18 12:55:51]  recommend  recommend this post  (207 visits) info

 AT,GE,AU
Today’s Imaggeo on Mondays picture shows the central section of the Svaneti Range, located in the Svaneti Region – a historic province of northwestern Georgia. The range is the second biggest range formed by the modern glaciation on the southern slopes of the Georgian Caucasus Mountains. In today’s post, Levan Tielidze, a researcher at Ivane Javakhishvili Tbilisi State University, writes about the ice capped peaks of these high mountains and highlights the precarious balance of this [...]

Himalayan glacial lake threatens to flood Buddhist holy city 

AGU Meetings [2015-12-31 17:00:46]  recommend  recommend this post  (142 visits) info

 US,IN
Himalayan lakes, like South Lhonak, are becoming more and more common as glaciers retreat due to warming temperatures, according to Anil V. Kulkarni, a glaciologist at the Divecha Center for Climate Change at the Indian Institute of Science in Bangalore. Kulkarni wants to understand how quickly the lakes are growing and how dangerous they are. He studies South Lhonak Lake because it’s large and growing, which suggests that it is unstable, he

Shrinking Glaciers: A Chronology of Climate Change 

State of the Planet [2015-11-28 15:00:21]  recommend  recommend this post  (126 visits) info
With new data, scientists can track back what glaciers did in the past, and how it is related to climate change. This provides a link to predict what could be happening in the next 100, 200, 500

Repeat Photography Project 

Central Arizona Geology Club [2015-10-26 00:48:00]  recommend  recommend this post  (146 visits) info
 Look at the comparison of the old and new photos of the glaciers in Glacier N.P.Repeat Photography Project | Northern Rocky Mountain Science Center (NOROCK)See the results of Global Warming.Harry

Vagabonding on Dangerous Ground: The Geology That Explains Why North Cascades is a Park Divided 

Geotripper [2015-09-04 23:07:00]  recommend  recommend this post  (209 visits) info

 US
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Diablo Reservoir below the peaks of North Cascades National Park. The Turquoise color results from fine silt and clay derived from glaciers. As I described in my last post on vagabonding, North Cascades National Park is the most strikingly beautiful national park I visited but never set foot in. The reasons become immediately clear with a look at the map of the park. There are two

Geology of the National Parks in Pictures - Rocky Mountain NP 

The Geology P.A.G.E. [2015-08-26 23:16:00]  recommend  recommend this post  (272 visits) info

 IN
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The next up on my tour of the geology of the National Parks in pictures is:Rocky Mountain National ParkFor our travels through Rocky Mountain NP, I have a lot of scenery photos, but not much in the way of strictly geological photos. It was mostly a scenic drive through the park. Also it has been a while since I was actually there so my remembrance of the features may be a bit hazy.Obligatory entrance signPanorama of some mountains. Ok, I really don't remember what this was for. But it's [...]

How Climate Influences Wolf Recovery in California 

State of the Planet [2015-08-26 20:06:23]  recommend  recommend this post  (204 visits) info

 US
Some evidence suggests that the glaciers on Mt. Shasta might have something to do with the location of a newly-spotted wolf pack in northern

Vagabonding on Dangerous Ground: Stone Rings, Glaciers, and "Dinosaurs" on the Coast of the Salish Sea 

Geotripper [2015-08-17 09:37:00]  recommend  recommend this post  (780 visits) info

 US,CA
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We've got a mixed bag on this post... Our vagabonding trip along the Cascadia Subduction Zone involved a desire to spend most nights camping, but we now we had reached Canada, our gear was all wet, and we were in one of the most beautiful cities in the world, Victoria. We decided to spend a few days in the comfort of a hotel and dry out a bit. Victoria is an architecturally scenic city,

Vagabonding on Dangerous Ground: The Diverse Landscapes of Olympic National Park 

Geotripper [2015-08-15 09:38:00]  recommend  recommend this post  (225 visits) info

 US
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We continued north and east from the Hoh Rainforest on our vagabonding journey through the Cascadia Subduction Zone. Mountains have been raised along the entire convergent boundary, but the ranges on the Olympic Peninsula are in a class by themselves. They are high enough to support glaciers, which means that Olympic National Park is one of the few parks in the country where one can explore

August 3, 2015 

Geology.com News [2015-08-02 23:00:41]  recommend  recommend this post  (147 visits) info

 Ordovician; US,CA
Glaciers of Frozen Nitrogen, Methane and Carbon Monoxide on PlutoThe Sydney Morning Herald What is a Glacier? Geology.com Greenland’s Undercut Glaciers Melting Faster than ThoughtNASA U.S. Domestic Oil: A Mindshift from “Exploring for Oil” to “Manufacturing Oil”Forbes Utah: Canadian-Owned Oil Sands Mine Almost Ready to ProduceMining.com Mine Closings and 30,000 Job Cuts in AustraliaMining.com The

Purcell Sill → Dike, Grinnell Glacier Cirque, Montana 

Mountain Beltway [2015-07-18 22:12:32]  recommend  recommend this post  (146 visits) info
The Neoproterozoic Purcell Sill is a stark, obvious black stripe in the strata of Glacier National Park. Here it is emerging from behind “The Salamander” glacier, above Grinnell Glacier Cirque: Zooming in, you can see the “baked” (bleached) zones above and below this concordant intrusion. But this time, during my visit to this special place, I noticed a discordant offshoot from the main sill: See it? Up there at the

Greenland’s fjords are far deeper than previously thought, and glaciers will melt faster, researchers find 

AGU Meetings [2015-07-15 17:27:02]  recommend  recommend this post  (113 visits) info

 US
West Greenland’s fjords are vastly deeper than rudimentary models have shown, allowing intruding ocean water to badly undercut glacier faces, which will raise sea levels around the world much faster than previously estimated. Those are the findings of a University of California-Irvine-led research team that battled rough waters and an onslaught of icebergs for three summers to map the remote channels for the first
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