Tuesday, December 9, 2014

Southern Patagonia has a very unique and diversified landscape that has developed over millions of years.  Currently Patagonia, Chile has a few landscapes that you aren’t to be missed if exploring this unique location.  These sites include:


Parque Nacional Torres Del Paine

Laguna Verde
IquiIque

San Rafael Glacier

Marble Caves


The marble caves glacier will melt most likely by the end of the century.  With the increased run off from the glacier, the caves will be under water and all of its beauty will be locked away like a secret.  Should the caves become covered by glacier run off, the monoliths of marble may be expanded as waves and water continue to erode the already existing tunnels and touch new walls.  If the melting glacier begins to reform at another point in time, there will potentially be new tunnels and beauty to admire.  The current caves are estimated to have developed over the last 6,400 years.

Laguna Verde is a unique salt lake that encompasses both hot springs and active volcanoes located in the Andes Mountains.  One of the volcanoes surrounding the lake is Ojos, the largest volcano in the world.  With climate changes, some areas will have increased rain while other areas will have higher drought.  It is anticipated that heavier rainfall will become more common in areas such as the Andes.  As discussed previously in the blog, Patagonia is at a prime location for such beautiful landscapes because of the moist air from the ocean and the long mountain ranges offering variations for weather patterns. 

The Andes mountains that are located in some of the national parks of Southern Patagonia will go through processes that will be increased with climate change.  The Andes shape will continue to change with erosion, uplifting, and faulting.  Increased rain will speed up the erosion process. Increased heat patterns will accelerate the rate of chemical reactions.  More volcanic eruptions and tectonic plate movement will release more gasses into the atmosphere and add new physical features with expelled matter. 

Southern Patagonia experiences heavy monsoons from South America when the warm tropical air is carried up into the Andes where it meets the colder dry air, heavy rainfall at high elevations cause flooding.  As climate change continues ocean heights will rise, glaciers will melt, and the general atmosphere will become more active as extremes begin to form around the equator and Northern and Southern Hemispheres.  Coastlines, such as IquiIque will have increased erosion and will probably not exist as the glacial ice melts and the coastlines are threatened.

As the glacier begin to melt organic matter that has been locked inside of the ice preventing the breakdown of such matter will become exposed, allowing for the decay process to occur.  This organic matter will then release the methane gasses that had been locked away into the atmosphere and into the oceans that cover any glaciers.  This methane release will then raise the temperature of both the atmosphere and the oceans. 







Tuesday, November 18, 2014

Temperature

Patagonia has very long days in the summer with the sun rising at 4:30am and setting at around 10:30pm.  Daytime offers warm weather with cool evenings, sometimes even resulting in frosty nights even in the summer month due to the relief of the Sea winds and the cool climate of the mountain ranges.  The region experiences humid climates with a generous amount of rain through out the year.



The best time to travel is September through February because the Southern hemisphere experiences the Spring and Summer during these months. The warmer weather offers the optimum time to enjoy all Patagonia has to offer.



The Williwaw is time of year where Southern Patagonia experiences higher winds that are generated by the changing pressure between the ice and the sea, cold air comes down over the mountaintops and joins with the wind carried from the sea resulting in a collision of pressure systems.  Variations of pressure can occur from cold conditions which create conditions of dense, sinking air with high pressure and higher temperatures that create expanding air, rising air and low pressure systems.  Combined with the rotation of the earth surface, different belt variation patterns are created. 



There are three mechanisms that will result in air rising; convection, cyclonic, orographic.  Southern Patagonia and the surrounding South American regions are considered to have the highest gravity wave activity in the entire world.  Strong surface winds near the Andes and strong low surface winds proliferates cyclones to move towards the South Pacific Ocean.  The orography of this region changes on a day to day basis over a total of a 72 hour period in a specific event measured over the Drake Passage.

Reference cites:



Monday, November 17, 2014

The Williwaw

Patagonia has very long days in the summer with the sun rising at 4:30am and setting at around 10:30pm.  Daytime offers warm weather with cool evenings, sometimes even resulting in frosty nights even in the summer month due to the relief of the Sea winds and the cool climate of the mountain ranges.  The region experiences humid climates with a generous amount of rain through out the year.

The Williwaw is time of year where Southern Patagonia experiences higher winds that are generated by the changing pressure between the ice and the sea and come down over the mountain tops.  Variations of pressure can occur from cold conditions which create conditions of dense, sinking air with high pressure and higher temperatures that create expanding air, rising air and low pressure systems.  Combined with the rotation of the earth surface, different belt variation patterns are created. 

There are three mechanisms that will result in air rising; convection, cyclonic, orographic.  Southern Patagonia and the surrounding South American regions are considered to have the highest gravity wave activity in the entire world.  Strong surface winds near the Andes and strong low surface winds proliferates cyclones that towards the South Pacific Ocean.  The orography of this region changes on a day to day basis over a total of a 72 hour period in a specific event measured over the Drake Passage.



Wednesday, October 1, 2014

Intrusive Volcano

An intrusive or plutonic volcano contains a mass of magma that rarely reaches the surface but instead manifests inside of the crust where it solidifies.  This magma can later become exposed over time after erosion and or weathering of the surface area.   Lautaro Volcano in Patagonia, a volcano difficult to study due to its heavy snowfall and weather conditions, is part of the Andean Austral Volcanic Zone and South Patagonian Ice Field.  Alternatively, extrusive volcanoes are formed when igneous rock is hardened from extruding magma or erupting lava explosions.  Patagonia and the Andean Austral Volcanic Zone to the Antarctic Peninsula geography suggests there was significant magmatism around the same time frame. This would have occurred in the intraplate to the continental margin, creating volcanoes formed over 30 million years around the same timeframe.    





Weathering, the breakdown of rocks and soil through contact with the atmosphere, can be both physical and chemical.  One of the most amazing examples of weathering in Patagonia, Chile is the Azure temple.  The Azure temple is a network of three caves.  This is one of the destinations highest on my bucket list.  The water surrounding the caves generated by glaciers fashion unique blue water that complements the marble cave walls in the center of General Carrera Lake.  This is the worlds largest formation of marble.  

















Photos:



Content:

Menzies, M. A. Volcanic Rifted Margins. Vol. 362. Boulder, CO: Geological Society of
America, 2002. Print.

"Revista Geológica De Chile - Geologic Reconnaissance of Lautaro Volcano, Chilean
Patagonia." Revista Geológica De Chile - Geologic Reconnaissance of Lautaro Volcano,
Chilean Patagonia. N.p., n.d. Web. 23 Sept. 2014.

Reporter, Daily Mail. "The Marble Cathedral of Chile: Are These the World's Most
Beautiful Caves?" Mail Online. Associated Newspapers, 1 Aug. 2011. Web. 23 Sept. 2014.

Monday, September 15, 2014

Terrain

Roughly 50 percent of Chilean Patagonia is protected by wilderness area, an experience known as “traveling to the end of the world”.  Traveling to Patagonia, you will notice a different outlook on life, life is about maintaining enough and not having an excess such as the United States.  Choosing Patagonia was because of the beauty in its land and the beauty of the focal points that remain in their culture today.  Patagonia residents, mainly small villages strive to maintain the land but also focus on the relationships, culture, and a well-rounded lifestyle.


Glaciers and Great Plains lay atop the Southern region of Patagonia, a region separated into Chile and Argentina by the Andes Mountain Range.  The Southern Chile Ridge has partially been melting over time as it has continuously subducted under the Patagonia continent and can be linked to the Patagonia Belt erosion. This indicates a volcano-tectonic relationship as an active ridge segment sits below the surface.  Plates that are involved in this tectonic relationship are Nazca and Antarctic Plates.


As a convergent boundary of tectonic plates, this region has many interesting geological features including: the Andes, Intermediate Depression, graben, foreland basin, and the beautiful coast.  In the Northern parts of Chilean Patagonia many minerals are abundantly produced including: copper, lithium, molybdenum.  Chile has the worlds largest copper reserves, and is top 5 of the western hemispheres exporters. 


Interpreting the past of Chilean Patagonia through the eras are most defined through the rock deposits found, these deposits indicate the largest changes during the Paleozoic, Jurrasic, and early Crestaceous ages.  Sedimentary rock deposits are give insight as to the movement of plates and separation over time.  According to  Geoscience, the decreased radiogenic trends from North to South are indicators of different tectonic plates that had separated.  This information can suggest that plate separation at specific points in history. 



Check out this hot link for the current news in Patagonia!

http://news.nationalgeographic.com/news/energy/2014/06/140610-chile-hidroaysen-dam-patagonia-energy-environment/

"Patagonia - Sitio Oficial De Turismo De Chile." Sitio Oficial De Turismo De Chile.
SERVICIO NACIONAL DE TURISMO CHILE, n.d. Web. 11 Sept. 2014.

"Relief in Chile and Argentina." Welcome Patagonia. Welcome Patagonia, n.d. Web. 11
Sept. 2014.

"Chilean Rivers Threatened Chilean Landscape." Earth Island Institute. N.p., n.d. Web.
12 Sept. 2014.


"Exploration and Mining Geology." Ore Deposits and Metallogenesis of Mainland
Patagonia, Aysen, Chile. N.p., n.d. Web. 12 Sept. 2014.





Saturday, August 30, 2014

Patagonia, Chile: Is it worth the Move?


My name is Kelsey Lindblom.  I moved here from Seattle, WA last August to finish Urban Studies at UC Denver.  I look forward to incorporating the lessons with class into interactive assessments of places such as Patagonia, and learning about the other students “travels” through their personal blogs.

Patagonia, a region located on the South American continent, is home to a variety of beautiful panoramas known as the "ultimate lands end."  Chilean Patagonia offers a variety of environments including: glaciers, icebergs, waterfalls, islands, and vast mountain ranges.  For our geographical tour, I chose the lionized utopia of Chilean Patagonia because of the diverse climate, distinct regions, and unique landscapes.