When was Harry Hess born?

When did Harry Hess come up with his theory?

1962

In 1962, he proposed a groundbreaking hypothesis that proved vitally important in the development of plate tectonic theory. It addressed several geologic puzzles: If the oceans have existed for at least 4 billion years, why has so little sediment accumulated on the ocean floor?

Where did Harry Hess go to college and what did he study?

He received a Bachelor of Science degree from Yale in 1931 and a Ph. D. from Princeton in 1932. Upon graduating, Hess taught for one year at Rutgers University and then spent a year as a research associate in the Geophysical Laboratory of the Carnegie Institution of Washington.

What did Harry Hess propose?

The discovery of the Great Global Rift in the 1950s inspired him to look back at his data from years before. After much thought, he proposed in 1960 that the movement of the continents was a result of sea-floor spreading.

What did Hess and Dietz do?

Hess and Robert S. Dietz suggested that new ocean crust was formed along mid-oceanic ridges between separating continents; and second, Drummond H. Matthews and Frederick J.

What is Harry Hess’s theory?

Hess envisaged that oceans grew from their centres, with molten material (basalt) oozing up from the Earth’s mantle along the mid ocean ridges. This created new seafloor which then spread away from the ridge in both directions.

What did Dietz call Hess idea?

Hess thought that fracture zones were unrelated to the mid-ocean ridges; Dietz, meanwhile believed that the fracture zones were a result of uneven convection motion in the mantle thereby moving parts of the ocean floor at different rates.

Who helped prove Alfred Wegener’s theory?

Alfred Wegener produced evidence in 1912 that the continents are in motion, but because he could not explain what forces could move them, geologists rejected his ideas. Almost 50 years later Harry Hess confirmed Wegener’s ideas by using the evidence of seafloor spreading to explain what moved continents.

What did Marie Tharp do as a child?

Early Life and Education

Her father worked as a soil surveyor, which means he made maps based on the soil data he collected. Tharp often went out into the field with her father, so she was introduced to mapmaking at an early age.

Is it possible for the continents to go back together?

Answer 1: Yes it is possible. The plates of the earths plate tectonic system are in relative motion that ultimately depends on circulation of platic rock in the deep earth. There is no reason why the crust that forms the continents could not again come together.

What did Marie Tharp do?

Marie Tharp is credited with producing one of the world’s first comprehensive maps of the ocean floor. She and research partner Bruce Heezen transformed a once barren and flat landscape into a dynamic three-dimensional space with mountains, valleys and trenches.

Did Marie Tharp get credit for her work?

In 1997, Tharp received double honors from the Library of Congress, which named her one of the four greatest cartographers of the 20th century and included her work in an exhibit in the 100th-anniversary celebration of its Geography and Map Division.

What got Marie Tharp into her career?

Tharp entered the masters program, which trained students in basic geology and then guaranteed them a job in the petroleum industry. Graduating in 1944, Tharp was hired as a junior geologist with Stanolind Oil & Gas in Tulsa, Oklahoma.

In what year did Bruce Heezen publish the work of Marie Tharpe?

Beginning in 1957, Tharp and her research partner, geologist Bruce Heezen, began publishing the first comprehensive maps that showed the main features of the ocean bottom — mountains, valleys and trenches.

Why is Marie Tharp considered an unsung hero?

Marie Tharp, an oceanographic cartographer who drew pioneering maps of the world’s oceans and whose observations from the late 1950s through the 1970s helped scientists reconsider the geology of the seafloor, has died. She was 86.

Who mapped the ocean floor in 1952?

Tharp and Heezen began mapping the individual ocean floors in 1952, but found obstacles in their way. The big one was invisibility: when it comes to mapping the ocean floor, the sea gets in the way of seeing. The second obstacle was limited data.

Where did Marie Tharp do her work?

In 1948, when Marie Tharp began working at the Lamont Geological Laboratory (now the Lamont-Doherty Earth Observatory at Columbia University), very little was known about the structure of the seafloor; it was thought to be mostly flat and featureless.

How long did it take Marie Tharp and Bruce Heezen to map the ocean floor?

It took her a year or so to convince Heezen that the rift was real, and it took the two several more years to finish their first map of the North Atlantic in 1957.

Did Marie Tharp have a husband?

Taking a chance, she married a nondescript male named David Flanagan in 1948 and moved with him to New York, where the exciting work in geology was happening.

Who Mapped the bottom of the ocean?

Marie Tharp pioneered mapping the bottom of the ocean 6 decades ago – scientists are still learning about Earth’s last frontier.

What did Marie Tharp study in college?

Marie enrolled in a petroleum geology program, becoming so one of the first “Petroleum Geology Girl” when she graduated in 1944. She worked for a short time in the petroleum industry, but found the work unrewarding and decided to resume her studies at Tulsa University.

What was Marie Tharp’s first job after finishing her geology degree?

After receiving her degree, she went to work as a research assistant at the Lamont Geological Laboratory in Columbia University in New York.