SCIENCE EXAM Flashcards
THE CONTINENTAL DRIFT THEORY WAS PROPETED IN 1912 BY?
ALFRED WEGENER
WEGENER WAS A?
METEOROLOGIST AND ASTRONOMER
NAME GIVEN TO NORTHERN PART OF PANGEA
LAURASIA
NAME GIVEN TO SOUTHERN PART
GANDWANALAND
THE —– STATES THAT OCEANIC CRUST FORMS ALONG THE MID-OCEAN RIDGE SYSTEM AND SPREADS OUT LATERALLY AWAY FROM THEM
SEAFLOOR SPREADING THEORY
—– IS A GEOLOGIC PROCESS WHICH TECTONIC PKATES -LARGE SLABS OF THE EARTH’S LITHOSPHERE SPLIT APART FROM EACHOTHER
SEAFLOOR SPREADING
THE SEAFLOOR SPREADING THEORY IS PROPOSED BY —- AND —- IN IN 1960
HARY HESS AND ROBERT DIETS
OCEAN FLOOR MOVES LIKE A
CONVEYOR BELT
—— FORMS ALONG CRACKS IN THE OCEAN CRUST AS MOLTEN MATERIAL ERUPTS
NEW OCEAN FLOOR
THE CONTINENTS FIT TOGETHER LIKE PUZZLE PIECES. WHAT DID THIS IMPLY THAT LED ALFRED WEGENER TO PROPOSE A THEORY IN 1910?
THAT PIECES OF EARTH’S CRUST ARE MOVING VERY SLOWLY
WHY DOES THE EARTH NOT EXPAND/GROW IN SPITE OF THE SEAFLOOR SPREADING?
BECAUSE OF SUBDUCTION IN THE PACIFIC OCEAN
WHICH DIAGRAM BEST REPRESENTS THE POLARITY OF THE MAGNETIC FIELD PRESERVED IN THE OCEAN-FLOOR BEDROCK FOUND ON BOTH SIDES OF THE MID-INDIEM RIDGE?
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A NEW SEAFLOOR IS FORMED AT THE MID-OCEAN RIDGES, THE OLD SEAFLOOR FARTHEST FROM THE RIDGE IS DESTROYED. WHICH OF THE FOLLOWING PROCESSES BEST DESCRIBES THE OCEANIC CRUST PLURGES INTO THE EARTH AND DESTROYS THE MANTLE?
CONDUCTION
BELOW IS A MAP OF THE MID ATLANTIC RIDGE POINTS A THOUGH D ARE THE LOCATION IN NORTH AMERICA AND AFRICA.
A^D^B
IN WHICH CROSS SECTION DO THE ARROWS BEST SHOW BENEATH THE LINE XY
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