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Posts treating: "Alaska"

Friday, 05 February 2016

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New papers on paleoseismology, tsunami, and active tectonics (Feb 2016) 

paleoseismicity.org [2016-02-05 14:25:11]  recommend  recommend this post  (53 visits) info

 Quaternary; US,DE,GR,IR,IL,MZ,NP,PT
Here’s the February edition of my paper recommendations. This time we have: Paleoseismology in Germany and Nepal (the latter with a focus on charcoal dating techniques), Tsunamis in Greece, Portugal, Israel and Alaska, Turbidites in Portugal, New insights into the geodynamics of Iran and Mozambique, Rupture jumps on strike‐slip faults, and A MATLAB tool for seismic hazard calculations. Enjoy! Grützner, C., Fischer, P., & Reicherter, K., 2016. Holocene surface ruptures of the [...]

Tiny M7 up near Alaska 

Ontario-geofish [2016-01-30 13:20:00]  recommend  recommend this post  (33 visits) info

 JP
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These are the big subduction zones of the world.  Here, an M7 is like a 4 to us.  A clean, gently curving zone probably means a 9+ every 800 years or so, just like Japan.  This is at a weird corner, with the upper zone very curved.  Thus, that lower zone could probably get a 9.2 or 9.3 (two to three times longer than a 9), but the upper zone is probably limited to 8's.  The zone

Tips in fishing for salmons in Alaska 

Liberty, Equality, Geology [2016-01-29 12:08:03]  recommend  recommend this post  (24 visits) info

 GB,US
The Frozen North is known as a standout amongst the most plentiful ranges with salmon, and is perfect for angling trips. This is a direct result of great tides along the West Coast and the spout of sea streams that make a situation perfect for the rearing of a large number of baitfish. It is […] The post Tips in fishing for salmons in Alaska appeared first on Liberty, Equality, and

Going digital: Building a better geological map of Alaska 

AGU Meetings [2016-01-20 21:24:51]  recommend  recommend this post  (26 visits) info

 AU,US
In the early 1900s, before Alaska was part of the United States, geologists roamed this northern territory on foot and horseback, noting its features and terrain on hand-drawn maps. Nearly 100 years later in 1996, U.S. Geological Survey (USGS) research geologist Frederic Wilson and a dozen colleagues undertook the task of using some of the information contained in these field notes, sketches and maps, along with many other sources of data, to create the first fully digitalized geological map of [...]

The Tyndall Glacier landslide in Alaska: the largest recorded non-volcanic landslide in North America 

The Landslide Blog [2016-01-02 11:39:01]  recommend  recommend this post  (35 visits) info

 US,
In October 2015 the 72 million cubic metre Tyndall Glacier landslide in Alaska generated a significant tsunami that swept down the Taan

Learn This, and Become Immune from Cults and Conspiracy Theories 

Dan\'s Wild Wild Science Journal [2015-10-11 09:38:35]  recommend  recommend this post  (97 visits) info

 US
So, in just one (two-part) blog post, I propose to keep you from falling into a crazy cult, or posting one of those crazy videos on YouTube about chemtrails or the Moon landing hoax. Beware though, if you think what I’m saying is silly, then you’re at high risk already.  It’s more than just the politicians in Alaska, that tell people with a straight face, that climate change is a

Data From Alaska’s Lake Peters Will Inform Climate Models 

Lake Scientist [2015-10-06 22:33:24]  recommend  recommend this post  (33 visits) info
Climate modeling is hard. But perhaps more daunting is work to make the models more accurate. From deep-sea expeditions to high-altitude flights, scientists can go almost anywhere, gather data and[...] The post Data From Alaska’s Lake Peters Will Inform Climate Models appeared first on Lake

A Week of Firsts for This Arctic Nation 

State of the Planet [2015-09-12 00:06:30]  recommend  recommend this post  (58 visits) info

 US
We are closing in on a week of intense focus and excitement for GEOTRACES and for the United States around the Arctic. President Obama became the first sitting president to visit Alaska, the US Coast Guard Cutter Healy with US GEOTRACES scientists completed the first unaccompanied US surface vessel transit to the North Pole, and the first group ever to collect trace metals at the North Pole! You might assume these three items are unrelated, but they are in fact tightly

Odds and Ends 

Earthly Musings [2015-07-12 18:58:00]  recommend  recommend this post  (87 visits) info

 US
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Houston, We Have Geology!Occasionally, I post various items that are not exotic or from faraway places. I'll be leaving for Alaska soon to run a wilderness river (the Tatshenshini) and so look for a post from that trip soon. In the meantime, here are a few odds and endsI just loved the above-the-fold headline in this mornings Arizona Daily Sun! Geology plays a prominent role in the upcoming New Horizons mission to Pluto. As you can imagine, Flagstaff has more than a passing [...]

Flying to Kyoto Japan Over Alaska and Kamchatka - June 10 and 11 

Earthly Musings [2015-06-13 11:54:00]  recommend  recommend this post  (66 visits) info

 CA,RU,US,JP,
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"The journey of a thousand miles begins with one step" - Lao Tzu from the Tao Te ChingAnd that step would be to Boeing Field in South Seattle where we boarded our jet. The date was June 10 with a scheduled departure of 9:30 AM. We landed in Osaka Japan on June 11 at 2:30 PM but the flight was not 29 hours long - we crossed the International Date Line and jumped ahead a day.As this is a Private Jet journey, the security check was a little different from the regular and mundane. Our bus drove [...]

John Muir, Alaska, and A Tree Mountain Chronology 

Wooster Geologists [2015-06-12 22:02:58]  recommend  recommend this post  (75 visits) info

 US
Guest Blogger: Audrey Steiner-Malumphy In 2011, Dr. Wiles and his advisees Lauren Vargo and Jennifer Horton cored dozens of trees from Tree Mountain in Alaska’s Glacier Bay National Park and Preserve. Muir Glacier is located northwest of this mountain, named after the esteemed naturalist and preservationist John Muir. Muir first traveled to the area in

Goodygoody Girdwood Chronology Construction 

Wooster Geologists [2015-06-12 17:08:04]  recommend  recommend this post  (50 visits) info

 US,DE
 Guest bloggers: Kaitlin Starr and Maddie Happ     During the summer of 2014, the Columbia Bay team (Dr.Wiles, Nick Wiesenberg, Kaitlin Starr and Jesse Wiles) cored numerous trees near the town of Girdwood, Alaska. The collection is primarily made up of cores taken from living Mountain Hemlock trees from the surrounding forrest. In addition

Alaska Sees Earliest 90 Degree Temperatures On Record 

Dan\'s Wild Wild Science Journal [2015-05-29 01:14:33]  recommend  recommend this post  (54 visits) info

 US
From climate.NOAA.gov today: This temperature map of Alaska shows the unusual warmth on May 23, 2015, at 2 p.m. local time in Fairbanks.  Based on NOAA’s Real-time Mesoscale Analysis data, it shows air temperatures at 2 meters (6.6 feet) above the ground. Temperatures below 45° are shades of blue, and temperatures above 45° are shades of orange and red. The warmest temperatures are located inland—away from the moderating influence of

Pan Pacific Palaeoseismology symposium 

Quake Hunters [2015-04-25 17:31:00]  recommend  recommend this post  (65 visits) info

 US,BE,GB,,IN,PH
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Last week I was delighted to welcome fellow academics, friends and collaborators from Potsdam Universty, Ghent University, Durham University and The Geological Survey of Belgium to join me for a symposium on subduction zone palaeoseismology. The day-long meeting was an opportunity to present and discuss the different approaches that we use when studying past earthquakes, tsunamis and subduction zone behaviour. Coinciding with Dr Daniel Melnick's Distinguished International Visit, the Pan [...]

Today in Earthquake History: Alaska 1964 

Seismo Blog [2015-03-27 01:17:00]  recommend  recommend this post  (35 visits) info

 US

Hunga Tonga-Hunga Ha'apai Erupts 

Volcano Science And News Blog [2015-01-19 19:35:00]  recommend  recommend this post  (66 visits) info

 US,IS,TO,NZ,TH
Hunga Tonga-Hunga Ha'apai, one of many submarine calderas NE of New Zealand in an island arc, has begun causing some problems for flights in the area. What started as a minor steam and ash eruption has now turned into a semi-major eruption in the area. Steam and ash clouds are reaching extraordinary heights, and the ongoing eruption is rapidly building a new island.Photo from Volcano-discovery.comResidents have reported that the eruption plume was changing hourly from white steam, to black ash [...]

Top events of first day #1: Tectonophysics poster session 

A Lisbon Structural Geologist [2014-12-17 15:32:00]  recommend  recommend this post  (54 visits) info

 AU,US,
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Really good discussion in yesterday’s evening Tectonophysics poster session! Among several points of interest, I met a young PhD student from Montpellier who is doing both fieldwork and numerical modeling in Alaska, dealing with the tectonic configuration of thrust and strike-slip fault interference. This caught my attention immediately because I have been doing both numerical and (mostly) analogue modeling of this type of interference for some time now . Mostly we’ve been looking at the [...]

Twelve Months of LFD 2014 

Looking for Detachment [2014-12-11 22:40:00]  recommend  recommend this post  (69 visits) info
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I missed this retrospective meme last year (as I also did in 2011), but here it is, back again, per DrugMonkey: The rules for this blog meme are quite simple. -Post the link and first sentence from the first blog entry for each month of the past year. I originally did this meme, after seeing similar posted by Janet Stemwedel and John Lynch. Prior editions

BC’s KSM Mine under attack by Salmon Beyond Borders 

I think mining [2014-11-15 05:10:10]  recommend  recommend this post  (52 visits) info

 US
Here is the outfall of the Pebble Mine and Mt Polley Mine debacles.  A report on the Seabridge Gold’s KSM Mine in BC.  The report is authored by Salmon Beyond Borders, a coalition of Alaska Native tribal members, commercial, sport and subsistence fishermen, and other groups, in consultation with Earthworks.  The press release is at this link.  The

Monday Geology Picture: U-Shaped Glacial Valley, Seward Peninsula, Alaska 

Georneys [2014-09-29 21:22:56]  recommend  recommend this post  (27 visits) info

 US
When glaciers erode landscapes, they often leave behind characteristic U-shaped valleys. This week’s Monday Geology Picture shows a U-shaped glacial valley on the Seward Peninsula in Alaska. This valley is located just outside of the gold mining town of Nome. Does anyone else have good pictures of U-shaped
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