Tuesday, 5 February 2013

Under the Volcano: Chapter 2

I have been watching feed from the Tolbachik volcano on the Kamchtka Peninsula ever since it started to erupt.  It has got to be my favorite type of eruption, an effusive fissure eruption.   Every summer, I have found myself on the side of some volcanic feature and inspired by Tolbachik volcano, I have decided to write about a few more of my favorites.




Craters of the Moon National Monument


I have driven across the flat and dry volcanic Snake River Plain in southern Idaho several  times and always regretted never visiting Craters of the Moon National Monument.  It is a little out of the way from the major interstate highways of the USA  but then again, so are most of the interesting volcanic features I have visited before.  Last summer I got my chance and it was well worth it.


Craters of the Moon National Monument consists of 400 square miles of basalt  lava fields originating from a "Great Rift".  Eruptions along this rift come from a series of fissures that generate spatter cones and effusive lava flows.  There are also a series of monogenic cinder cones some of which, like Inferno Cone (see picture below) can be climbed by the public.  The most recent erruption was approximately 2100 years ago.

The expansive and flat lava flows contain tree molds and some of the largest lava tubes I have ever seen.
I was fascinated by a distinguishing and a unique feature of the Blue Dragon flow, the youngest flow in the park.  The lava is covered by scales that give off a blue sheen.

Craters of the Moon National monument is at 5900 feet altitude and is almost always windswept.  The lack of cover and the heat sink nature of the black basalt can make it also a very hot place to visit.  Despite these conditions, I enjoyed my time there very much.

Yellowstone


I have visited Yellowstone at least five times and keep being drawn back.  Yellowstone is a fascinating to me not only because of its seemingly endless local volcanic and hydrothermal features but because of the fact that the hotspot which created them, is also responsible for many of the large geologic formations  throughout the pacific northwest.  These include the flood basalts of Snake River Plain and even the Columbia River Basalt Group, one of the largest trap formations in the world.
Columbia River Flood Basalts
 When you have seen all of this, calling Yellowstone merely a "super volcano" doesn't seem to justify the magnitude of eruptive material that has been created by this hotspot.  It is mind boggling!  Yellowstone itself is a series of overlapping and sometimes nested caldera type eruptions on a massive scale.  The youngest caldera is filled with the remains of many more recent effusive and sometimes explosive events.  Eruptions at the current location has ranged from phreatic to those producing lavas all all varieties, basalt to rhyolite.  Yellowstone resides on the continental divide, currently one of the thickest parts of the earths crust on the North American Plate.  The massive magma chamber, which was once fed by the hotspot, is still full of plastic hot magma possibly left  there from previous eruptions of the distant past.  Insulated within the rock of the crust, magma can stay hot for milenia.  This magma chamber is at a very shallow depth such that water coming in contact with it has created the world's largest collection of hydrothermal features which include geysers, hot springs, fumaroles, and mud pots.  Below is a small sample of some of the geology that can be seen within the park.

Ubiquitous "Old Faithful" geyser
Upper Geyser Basin Path
Grand Prismatic Spring
Mammoth Hot Springs
Fountain Paint Pots boiling mud pond
Roaring Mountain Fumarole Field
Overlapping columnar lava flows at Watch Tower Falls

There are two resurgent domes within the Yellowstone caldera which have been growing lately.  This has been a source of concern amongst sensationalist media types but they are a common feature in most  active calderas around the world.  Resurgent domes are known to inflate and deflate routinely and are not a good  indicator of an imminent volcanic eruption.  The National Park Service and the USGS (United States Geologic Survey) monitor the volcano constantly with various types of sensors.  There has not been any sign of a significant increase in sulfur dioxide emissions or increased seismic tremors(earthquake) in focused swarms, key indicators of a possible eruption.  Experts say that the likelihood of a big Yellowstone eruption is 1/730,000 every year.   I hope this debunks some of the fear generated by media...sorry doomsday preppers!

Aside from the geology, I also love visiting Yellowstone for it's rustic charm, abundant wildlife, and beautiful mountain vistas.  Yellowstone is just too large to see everything in one trip.



Newberry Caldera/Volcano and Medicine Lake Volcano


Although these two volcanoes reside in two different states, they are both situated just east of the Cascade Range and volcanic arc, they are both essentially shield volcanoes with extensive associated monogenic cindercone fields,  they are both atypical shield volcanoes in that they have produced both basalt flows at lower elevations and rhyolite flows at higher elevations, and they both have lakes within their calderas.  It is likely that both have multiple small magma chambers rather than just one.  Both of these volcanoes seem to be on an area of crustal extension with eruptive vents running along fault lines moving from the oldest in the southeast to the youngest in the northwest.  The last eruption at Newberry was approximately 1400 years ago and the last eruption at Medicine Lake was approximately 900 years ago.

I had the pleasure of camping inside Newberry Caldera next to East Lake.  Newberry is in central Oregon.  The caldera itself is filled with obsidian shards from various rhyolite flows and this can make walking in unsuitable footwear treacherous.  There are several hot springs along the sides of both lakes in Newberry Caldera.

Central Pumice Cone across East Lake
Big Obsidian Flow
Lava Butte
Medicine Lake Volcano is in  northern California and has Lava Beds National Monument on its northern slope.

Medicine Lake Volcano on the left and Mt Shasta distant right
This volcano is well off the beaten path but its numerous lava tubes makes it a destination for adventurous spelunkers.  I discovered this monument more by coincidence than on purpose as it was on my planned route to Reno one spring.  In Lava Beds National Monument the final battles of the Modoc War (or Lava Beds War) were fought between the local native American Modoc tribe and the US army  in 1873.  The lava beds were known as Captain Jack's (the Modoc leader) Stronghold and the lava tubes and ridges provided an effective defense during the two battles which were fought in them.  The combination of history and geology has made Lava Beds National Monument a fondly remembered destination for me.

Devil's Homestead Lava Flow
Lava tube entrance with Schonchin Butte cinder cone behind





Stay tuned for more volcano goodness as I have visited many others and I intend to see many more.

Monday, 28 January 2013

Bushcrafting: The Mighty Kuksa

I have been accused of being materialistic, even by people who are supposed to have been close friends.  To a certain extent this is correct however, for me it has always been about the quest to obtain whatever object I am seeking.  The harder an object is to attain, the more I have valued it.  This is why I cherish anything that I have made through my DIY (do it yourself) projects.  This is also part of why I really enjoy the "crafting" side of bushcrafting and this leads me to my next project, making a kuksa.

A kuksa (guksi or kasa) is a traditional handicrafted cup carved out of the burl of a birch tree by the Sami or Laplander people of northern Scandinavia.  The Sami believe that  traditionally, you should either carve your own or receive one as a gift.  A kuksa should last you a lifetime.  The kuksa has been adopted by bushcrafters not only for its aesthetics, function, and its origin in the forest but because it is a natural progression in carving skills to craft one after completing the carving of a spoon.  The tools and skills needed to carve a kuksa are exactly the same as for the spoon.  All you need is a saw, hatchet, carving knife and a crooked knife.
A cook spoon I carved from the fallen branch of a cedar tree.

Since a kuksa is made from natural materials of the forest, I was determined to find what I needed to make one there.  There is an abundance of birch trees growing in the boggy woods which surround where I live so I headed out on a hike to find the materials I needed.


After a long search for a burl, I found one (which I at first mistook for chaga).

Birch burl
  Unfortunately, the burl was too small so I settled for using a piece of silver birch from my pile of firewood.  It took me approximately two weeks to carve and along the way I had to fight the wood from cracking because it was still slightly green.

 I wanted to keep this kuksa as authentic as I could so I added deer antler to the handle.  The antler was supplied by a fellow bushcrafter and I can't believe how hard the material was to shape!  I also etched a crude Sami symbol for reindeer into it, my first attempt at scrimshaw!  After my initial scare with cracking, I was afraid to try curing the kuksa in the tradional way by boiling it for several hours in salt water so instead I went with rubbing it with mineral oil.  The mineral oil makes it safe to drink out of, protects it from rot, and brings out the grain.  Here are a few pictures of my completed kuksa.


For someone interested in a kuksa but not motivated to carve their own, there is a new product gaining popularity with backpackers and bushcrafters alike.  Kupilka, a Finnish company, makes a a lightweight kuksa. called the "Kupilka 21", out of  a natural fiber composite consisting 50% of pine and 50% plastic.  At only 3.5oz, it is dishwasher safe and biodegradable.

Kupilka 21.
The kuksa project has been very satisfying to me and I can't wait to use it around my next campfire.

Monday, 5 November 2012

Bushcrafting: Man Bag/Haversack

As much as the "European man bag" is getting mocked these days, it is still very trendy and not a new idea.  Haversacks have been around since man first started to travel. Old army surplus gas mask bags are much prized by young adults in Great Britain right now and of course, the bushcrafting crowd all over.   Hey, even Harrison Ford's character, "Indiana Jones", carries a British Mark VII gas mask bag as part of his adventure kit.


Surplus Finnish gas mask mask bags are easier to find, less expensive, and just a little larger in carrying capacity.  The other thing which makes these bags so popular is that they are so easy to personalize or accessorize.

I decided that it might be a nice project to fix one of these bags up for myself.  The haversack would make a nice addition to my canvas and leather Frost River backpack and the rustic style would make the two very complementary.  I could also use this bag on its own as a daypack for bushcrafting trips or, yes, even as a man bag.

 So I purchased one from a surplus store online because I could not find one locally, shopped around for some leather and brass parts, and ordered a shoulder pad for the strap from Maxpedition.  I had to have some straps removed and new loops sewn in their place.

 Finally, I attached a leather "Navigator Pouch", made by leather artisan and very talented knife maker, Cody of  Adventure Sworn.


 My coworkers are always very curious about my little crafting projects and they really liked this bag.  One asked if I could make them one in pink!  For now, I think I'll just take mine out and enjoy it regardless of the "man bag" stigma.

Friday, 2 November 2012

Vaccinate Debate

This is the season where people go and get their flu shots.  It always brings up contentious discussion over the efficacy of vaccinations..  Normally I don't have a big problem if someone decides that immunizing themselves is not for them as long as they have done their due diligence when deciding.  I wish they would reconsider but it's ultimately their decision.

What really irritates me is all the people who spread misinformation about what is in these vaccinations and how they work.  Lately I dropped two of the support groups for my vasculitis because it is filled with such people.  I have heard everything from the flu shot contains live viruses so you could become a "Typhoid Mary" type of carrier or that the flu shot contains tracking devices put there by the "government".  I have read from some posters in these support groups encouraging people not to take any vaccinations which is in direct contravention to the medical advice given by the Vasculitis Foundation of Canada, the Johns Hopkins Vasculitis Center, and even my own well respected  rheumatologist.  The wrong information being spread by people, no matter how well intended, can have disastrous results on people who are already chronically ill, immunosuppressed, and gullible enough to believe it.


As a medical professional I am concerned when I see the number of people stricken with whooping cough(Pertussis) reaching epidemic levels.  This is all because misinformed parents refuse to get their kids vaccinated with the DPT shot.  Pertussis is otherwise highly contagious.   It is also alarming to see the resurgence of Polio, a disease that was thought to be almost completely wiped out because of a worldwide successful vaccination program.  Then there were all the highly publicized claims about the MMR (measles, mumps, and rubella) causing autism that were later proven to be fraudulent only last year.  The list goes on for the non-science based witch hunt on vaccines and people are getting sick as a result.

 Yes indeed vaccinations can have unpleasant side effects such as fever, chills, allergic reactions, or soreness in the spot where the shot was given.  In some cases the side-effects can be worse but the incidence is much lower than the possible bad effects of the original diseases.


On a personal level, I almost died from the Swine Flu (H1N1) in the Fall of 2009 because I didn't get vaccinated in time.  As a medical person who is exposed to sick people and as a person who is immunosuppressed, there was a rush to get my shot but I had already been exposed to the disease by the time I received it.  I ended up in the hospital as a patient in isolation and very sick.  I never miss getting my flu shot and as early as I possibly can now.

 Bottom line is I don't want to be sick nor do I want to make anyone else sick.  Getting a simple vaccination can prevent it.

Wednesday, 1 August 2012

Bushcrafting - an overnighter

I had a couple days off work so I decided to take my son out on a quick overnighter. He had our standard backpacking gear and I was using my bushcrafting setup.


I'm using a Frost River Summit Expedition and it was a little tight to fit all my overnight gear but doable.  With my sleeping pad packed inside and against my back, it road quite comfortably but I did have occasional arm numbness/circulation cut off with the straps (I need to learn to switch my hiking stick to my other hand once in a while).


My shelter was a basic 5x7 siltarp and a bivy bag with some Tyvek as a groundsheet.  My son was using one of my regular tarptents.  I had problems with mice driving my crazy all night and he had none...hmmm, lesson learned here maybe.

Regulations in the area prohibited campfires so we had to make do with the flames from my candle lantern and White Box alcohol stove.  Although I have used popcan stoves and they are lighter, I really like the robust build of the White Box and it really puts out some BTU's too!


I always wanted to try carving my own wooden spoon so we got down to business.  It was harder than it looked I have only got it to the point where it has been roughed and ready for some knife work.  I have new respect for all you spoon carvers!  I have taken my project home and will hopefully remember to pack it on my next trip so I can finish it.  Hopefully it will not turn into a much reputed "chicken stick" but it is always a possibility.


I'm looking forward to getting some campfire action on my next trip and continuing work on my spoon.

Saturday, 23 June 2012

Richmond Night Market

Last night my family and I headed to the Richmond Night Market. We actually have two of them in Richmond, one which is the biggest in North America.  It usually runs  all summer every second Friday evening from from 7pm to 12am  Although some of my family has been to one before, this was my first time.


It poured with rain but we didn't let it stop us.  If we let the weather interfere with our plans, we'd never get to see anything, especially this wet year!  There was a really good band playing Celtic music and I could have listened to them all night.


There was a huge selection of street food where you could buy anything from grilled octopus on a stick to gourmet doughnuts.  I stopped by a Bubble Tea booth to wave at a friend who was working there.


There were rows and rows of vendors selling cheap imported goods, most from China.  Most of them are happy to barter for the prices.  I decided to be a cliche and a purchased a new cover for my iPhone.  There was also art on exhibit and some things I just can't explain.


Hopefully, I plan to return later this summer when it is a little warmer and drier.  If you get a chance to visit the Vancouver area on a Friday, I highly recommend visiting one of our night markets.

Monday, 18 June 2012

Erin's High School Graduation

Last week my daughter Erin graduated from high school.  After much nagging and gnashing of teeth from my wife, I finally have the pictures processed and online for the rest of my family to see.  Erin worked very hard this year and will be entering the nursing program at the University of Northern British Columbia this Fall.  We are very proud of her and we will miss her.


It seems like only yesterday I was enrolled in the Medical Laboratory Technology program, where I met my beautiful young wife.  It was and still is an exciting adventure.  I am satisfied that I have helped raise such a mature and responsible young lady.  No amount of money could make me feel richer than I am by her achievements.

Here is a little video of Erin's Grad.