Deep Earth Exploration
NMNS, December 6, 2017 － How far down is the center of the Earth? According to modern earth scientists, the approximate distance from Earth's center to its surface is about 6,371 km. But in fact the Challenger Deep, the deepest known point at the southern end of Mariana Trench where explorers have made the epic journey, is only 11 km below sea level, and the deepest hole human drill into the Earth’s crust reaches only a little more than 12km.
How do people know about the insides of the earth if they can't go down there due to the too much pressure and heat? We cannot see the deep interior of Earth, but we know from a variety of observations that it is in continuous motion. This is because the mantle convects. This fundamental planetary process has profoundly influenced the character and evolution of Earth. According to the record of the seismic waves caused by earthquakes, scientists assume that the earth is made of layers (crust, mantle, outer core, and inner core) and each one has a unique make-up to it.
Scientists proposed the plate tectonics theory to describe seismic activity, volcanism, mountain building, and various other Earth processes in terms of the structure and mechanical behavior of a small number of enormous rigid plates thought to constitute the outer part of the planet. Yet, in the universe, almost everything moves and changes. Despite the new technique and wealth of data, many of the basic questions related to tectonic processes still cannot be answered.
What: To tackle compelling challenges in earth science, the National Museum of Natural Science holds the ‘Deep Earth Exploration’ Seminar Series in collaboration with Taichung Municipal Cingshuei Senior High School, Taichung Municipal Taichung Girls' Senior High School, and The Affiliated High School of National Chung Hsing University. We invite five leading scientists at IES, Academia Sinica and Taiwan Ocean Research Institute to present results from their recent research projects about plate tectonics theory.
Who: Students in senior high school and above.
Where: The Museum's 2nd Science Classroom
|TIME & DATE||SUBJECT||SPEAKER|
|Sat. 9/16, 2017;|
|Temperature, Pressure and Convection in the Core of Earth||Curator|
|Sun. 10/15, 2017;|
|A Look at the Layers of the Inner Earth||Curator|
|Sat. 11/18, 2017;|
|Mantle Convection and Plate Tectonics||Curator|
|Sat. 12/23, 2017;|
|Taiwan's Tectonic Activity and Evolutionary History||Curator|
|Sat. 1/13, 2018;|
|The Origin and Evolution of Earth and Solar System from Meteorite Research||Curator|
We'd like to invite you to join the discussion! Our seminars are free and open to senior high students and above who are interested in earth sciences. Earth sciences teachers are particularly welcomed.
Seminars are by online registration only, which begins 1 month prior to the event and ends 1 week prior to it. Please visit our registration system to register. Space is limited to 20 people per seminar and is on a first-come-first-served basis.
Questions regarding the program? Please contact us at 04-23226940 ext. 353 or 672.