-
Abraham Ortelius
His theory was that the states were once together, but they were spread apart by the earthquakes and floods. A.B. -
Nicholas Steno
When he was born. -
Nicholas Steno
His theroy was that sedimentary layers are deposited in a time sequence with the oldest on the bottom and youngest on the top. A.B. -
Nicholas Steno
Died. -
James Hutton
Born -
James Hutton
Uniformitarian principal geological force work. M.H. -
James Hutton
Died M.H. -
Alfred Loather Wegener
Born, don't do the full date. H.J.K -
Arthur Holmes
Born -
Harry Hess
Born M.H. -
Harry Hess
He found out the Earth's crust moves from volcanic ocean ridge.
-Sea floor spreading and moving and taking the continents with it. M.H. -
Arthur Holmes
His theory was that when magma is heated, it tends to rise, then cools and sinks again. Heating and cooling results in this current is so strong is causes the continents to move. H.J.K -
Arthur Holmes
Made a book talking about Earth's age. -
Alfred Wegener
He also found out that fossils often symbolized a climate.
His theory lacked a geological reason to explain Earth's surface. H.J.K -
Alfred Wegener
Death. H.J.K -
Dan Mckenzie
Don't know full birthday, only year. M.H. -
Dan Mckenzie
Earth's acient magnetism patterns. M.H. -
Arthur Holmes
Died. H.J.K -
Harry Hess
Died