2nd Half Mtn Studies Flashcards
Mountains in the Renaissance
Shunned in Europe
Mount olympus
home of gods, revered by Greeks
Hannibal’s crossing
a roman general first observed the physiological effects of altitude making mountains feared by romans, viewed as obstacles to commerce
Dragons
Represent mountains in China and were worshiped
3rd AD China Mountains
seen as dangerous and places of supernatural power
Hsied Ling-Yun poem
depict Chinese mountains as scenic beauty in 4th century
Human Presence in mountains was ____ years ago
100000 years, archeological evidence
Human Presence in American mountains was ____ years ago
10-11000 years ago
Machu Picchu
home of Incas who worship moon, sun, stars
The Sublime
Mountain aesthetic by Edmund Burke, thrill of confronting untamed nature, supernatural lays beneath surface
First National Park
Yellowstone national park
First Canadian National Park
Rocky mountain national park (Banff), started from Cave and Basin Hotsprings
Writers who talk about sublime spaces
William Wordsworth (The Prelude), John Polidori (The Vampyre), Mary Shelly (Frankenstein), John Muir
What Was Mary Shelly Inspired by?
visit to French Alps Mer de glace glacier in valley of Chamonix during the little ice age
Myth of the Frontier
return to primitive living would cure illness of modern society
Artists who promote myth of the frontier
Kevin Costner (Dances with wolves) and James Cameron (Avatar)
The Alpine Club
in London, first promoters of Mountaineering (climbing) in 1857
Victorian Mountaineering culture
early climbers were from professional urban middle classers
Appinines
in Italy, romans feared these mountains
Mt. Paektu
In Korea, ‘sky god’ or ‘heven like’
Mt. Kailash
In Tibet, revered as sacred, no one can climb
John Muir
described sierra nevada in 1911 as ecstasy evoking
Albert Mummery
died mountaineering on Nanga Parbet from an avalanche
Flow
the right amount of challenge and skill reaches flow. Too much challenge w/o skill gives anxiety and too much skill w/o challenge gives boredom
Maslows Heirarchy of needs
explains the psychology of mountain climbing as most mountain climbers have there basic needs met so will move to self actulization
Maslows Heirarchy of needs
explains the psychology of mountain climbing as most mountain climbers have there basic needs met so will move to self actualization
Loose Snow Avalanche
Little cohesion, fresh snow, causes most damage in the spring (but not as bad as slab avalanches). Get bigger as they progress
Slab Avalanches
Slab on weak layer releases at crown and slides on bed surface. Need slope angle of at least 30 degrees
Slope angle for avalanches
36-39 (60+ can’t hold avalanches)
Speed of avalanches
dry can be 50-200km/h (more dangerous as speed can melt snow and form debris) and wet are slower
Climax Avalanches
Slab avalanche in the spring that brings down all remaining snow
Glacier National Park
Has 134 avalanche paths with 14m of snow over 40km
Snowsheds
protect highway from avalanche
Rockfall Landslide
caused by steep slope and exposed rock caused by weathering, rock bounces and rolls
Topple Landslide
caused by steep slope and exposed rock caused by weathering, lg. piece of bedrock rolls end over end
Turtle Mountain Landslide
A rockfall landslide that was caused by tectonic shifting and undercutting by glaciers
Translational Landslide
Parallel, stays intact, usually clay, sand, and silt that have increased moisture or triggered by an earthquake, has steep headscarpe
Rotational landslide
Curved, slumps and vegetation tilts back, usually clay, sand, and silt that have increased moisture or triggered by an earthquake, has steep headscarpe
Earthflow landslide
Unconsolidated sediment that becomes saturated ( and surface underneath impenetrable)
Earth Creep Landslide
Very slow moving, little water
Earth Creep Landslide
Very slow moving, little water
Debris Flow Landslide
Similar to an earth flow but with larger sediment, most dangerous and triggered by large water influx
Protection from landslides (7)
Rockfall shelters, drape nets, catch fences, levees, metal anchors, ditches and drains, tree planting
Where do volcanos form?
convergent plates, subduction zones, hot spots
Basaltic Lava
low silica content (increased flow), high iron and magnesium, usually at divergent plates and hot spots in ocean
Rhyolitic Lava
high silica (thick), low iron and magnesium, usually at subduction zones and hotspots
Sheild Volcano
Basaltic magma travels lg area before cooling therefore gentle slope where gas escapes easily (mild eruption)
Tamu Massif
oceanic sheild volcano
Strato Volcanos
rhyolitic magna travels slowley creating steep volcanos. Gas gets trapped causing explosions
Examples of strato volcanos
Krakatoa, Vesuvius (pompeii), Mt. St. Helens, Mt. Pinatubo
Cinder Cone
Intermediate between sheild and strato volcanos (ie Paricutin in New Mexico)
Lava Flows
Impossible to stop but not life threatening (more very slow)
Volcanic Ash
contains glass and rock shards that can enter stratosphere and have a cooling effect
Pyroclastic Flows
Fast lava movement (moves at about 700km/h) that is very dangerous
Lahar
large amounts of snow mix with volcanic ash in rivers creating a wet cement
Biodiversity (4)
number of species, distribution, genetic varriation, and roles in an ecosystem
Speciation
Populations diverge untill they can’t interbreed
Allopatric Speciation
caused by geographic barriers (is Tyrian Metaltail)