Drake passage was named for Sir Francis Drake who, after having passed through the Strait of Magellan in 1578, was blown south during a storm and discovered and open connection between the Atlantic and Pacific Oceans.
More Lectures as we are heading south.----I have just done the main topics.
Drake crossed in 1578 around Cape Horn
James cook was to sail around the world in 1772 he saw the antarctic circle to New Zealand and another trip but never saw Antarctica itself but did go into the antarctic circle.
Sealing was started ..Nathaniel palmer 1840 on 40 foot sloop maybe the first to see Antarctica.
Bellinghausen to come next 1820
Then whaling came James Weddell 1823 actually got to the continent.
James Clark Ross -British came into the ice shelf by the Ross sea.
Charles Wilkes 1840
Whaling industry in the 1900s
Begins was a ship that was caught in ice for a year and rescued a year later in 1999 or 89?
Borchgrevink in cape adare. Brought dogs Borchgrevink
Balloons used in the turn of the century . Used by Scott
Skelton- 1907-09 almost to pole
Bird did a lot of survey by flying around the pole.
Lecture on geology
Two regions east and west
World made up of many plates Caribbean and scotia plate alike. They have volcanoes and have island on the side of the plates.
We have continental plates and Oceania plates
Talked about plates coming together and going away from each other,
Antarctica and South America separated about 30 million years ago. And 40 million years ago was covered by ice. More ice before about 1000 feet more and now the ice is 4000 meters
Mountains we are going to see are very young mountains
Few volcanoes in the Bransfield strait and the Marie Byrd land due to the rifting processes.
There might be a volcanic eruption and ice might will not be good.
Meteors are here and fossils are very important to see But you Can’t take anything from Antartica..
No comments:
Post a Comment