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Maria Chu
ESC 113-601
March 31, 2006
Dr. Morley
Extra Credit Assignment
Museum of Natural History
I went to the Museum of Natural History on March 25, 2006 at approximately 2:30
pm. I saw the Heilbrunn Cosmic Pathway and the Gottesman Hall of Planet Earth
exhibits. I also visitied
The exhibit that I found most interesting was the Earth Event was in the Gottesman Hall
Planet Earth which was next to the Dynamic Earth Globe. It had electronic bulletins
which had worldwide updates of currents events such as earthquakes, storms and
volcanic activity. Some of it was live footage of actual activity and some of it was just
computer graphics.
Another exhibit that I found quite interesting was the Earthquake Monitoring Station. I
had a seismograph which constantly monitors the ground shaking activities at the
following locations:Fairbanks, Alaska; Tucson, Arizona; and Matsushiro, Japan. It shows
real time activity. There was a large plasma flat screen display that had a map of the
world. It color coded events that occurred daily, yesterday, 2 weeks ago, and five years
ago and it had a magnitude graph. The smaller screen has updates every 10 minutes on
earthquakes .The drum recorder which was used in the 1960’s to monitor underground
nuclear weapons tests and earquakes.
Where plates separate and making the oceaning crust was also informative as it had a
layout of how the plates spread out at divergent boundaries and that these boundaries are
found in the middle of ocean basins.
The Three Types of Rocks display was also very eye-catching. There was a great display
of sedimentary, igneous and metamorphic rocks. It gave the descriptions of igneous,
metamorphic, and sedimentary rocks and also had very large examples of these rocks. It
went on the explain the textures, and how these rocks were formed.
One fact that I learned was that “the oxygen that is now in the earth’s atmosphere was not
there at the beginning. Early life began to generate oxygen by converting the sun’s
energy into food. That caused the iron that was dissolved into the oceans to precipitate
out as iron oxide minerals. This rock with its layers of red jasper and iron magnetite, was
formed billions of years ago as part of that process. It is a reminder that life made our
atmosphere breathable.”
There was a display on ocean basins. One exhibit had a layout of the inside a volcano
where geologists mapped the conduits or pathways in the Kiluea. There was also a video
with geologists showing the active volcanoes.
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Another interesting fact that I found out was that the” Grand Canyon cannot be older than
Six million years. The shivwit plateau just to the north of Grand Canyon contains gravels
deposited by rivers flowing from the southwest. Soon after they were deposited the
gravels were covered by a lava flow dated at 6 million years old. The present westerly
flow of the Colorado River cuts across that ancient drainage. that means the Grand
Canyon cannot be older than six million years old. It’s miminum age was calculated by
another lava flow from 3.8 million years ago.”

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Maria Chu ESC 113-601 March 31, 2006 Dr. Morley Extra Credit Assignment Museum of Natural History I went to the Museum of Natural History on March 25, 2006 at approximately 2:30 pm. I saw the Heilbrunn Cosmic Pathway and the Gottesman Hall of Planet Earth exhibits. I also visitied The exhibit that I found most interesting was the Earth Event was in the Gottesman Hall Planet Earth which was next to the Dynamic Earth Globe. It had electronic bulletins which had worldwide updates of currents events such as earthquakes, storms and volcanic activity. Some of it was live footage of actual activity and some of it was just computer graphics. Another exhibit that I found quite interesting was the Earthquake Monitoring Station. I had a seismograph which constantly monitors the ground shaking activities at the following locations:Fairbanks, Alaska; Tucson, Arizona; and Matsushiro, Japan. It shows real time activity. There was a large plasma flat screen display that had a map of the world. It color coded events that occurred daily, yesterday, 2 weeks ago, and five years ago and it had a magnitude graph. The smaller screen has updates every 10 minutes on earthquakes .The drum recorder which was used in the 1960’s to monitor underground nuclear weapons tests and earquakes. Where plates separate and making the oceaning crust was also informative as it had a layout of how the plates spread out at divergent boundaries and that these boundaries are found in the middle of ocean basins. The Three Types of Rocks display was also very eye-catching. There was a great display of sedimentary, igneous and metamorphic rocks. It gave the descriptions of igneous, metamorphic, and sedimentary rocks and also had very large examples of these rocks. It went on the explain the textures, and how these rocks were formed. One fact that I learned was that “the oxygen that is now in the earth’s atmosphere was not there at the beginning. Early life began to generate oxygen by converting the sun’s energy into food. That caused the iron that was dissolved into the oceans to precipitate out as iron oxide minerals. This rock with its layers of red jasper and iron magnetite, was formed billions of years ago as part of that process. It is a reminder that life made our atmosphere breathable.” There was a display on ocean basins. One exhibit had a layout of the inside a volcano where geologists mapped the conduits or pathways in the Kiluea. There was also a video with geologists showing the active volcanoes. Another interesting fact that I found out was that the” Grand Canyon cannot be older than Six million years. The shivwit plateau just to the north of Grand Canyon contains gravels deposited by rivers flowing from the southwest. Soon after they were deposited the gravels were covered by a lava flow dated at 6 million years old. The present westerly flow of the Colorado River cuts across that ancient drainage. that means the Grand Canyon cannot be older than six million years old. It’s miminum age was calculated by another lava flow from 3.8 million years ago.” Name: Description: ...
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