Chapter 7 Plate Tectonics Review Quiz

Earth Science Chapter 7: Plate Tectonics Review Quiz Name____________________________ Signature _____________________________ Due Tuesday, Nov 1 at beginning of class Please properly fill out your answers on a scantron sheet with your name, chapter and due date 20 points Total (1 pt. each ) 1) The former late Paleozoic supercontinent is known as ________. A) Pandomonia B) Pancakea C) Pangaea D) Panatopia 2) Pull-apart rift zones are generally associated with a ________ plate boundary A) transform B) divergent C) convergent D) all plate boundaries 3) A very long-lived magma source located deep in the mantle is called a ________. A) magma welt B) basalt spout C) melt well D) hot spot 4) The temperature below which magnetic material can retain a permanent magnetization is called the ________. A) Darcy temperature B) Vine temperature C) Bullard point D) Curie point 5) In the early part of the twentieth century, ________ argued forcefully for continental drift. A) Karl Wagner B) Peter Rommel C) Alfred Wegener D) Bill Kohl 6) ________ was an ancient reptile that lived in South America and Africa during the late Paleozoic. A) Granopteris B) Monastarious C) Glossopteris D) Mesosaurus 7) The ________ is an example of an active, continent-continent collision. A) Arabian Peninsula slamming into North Africa under the Red Sea B) westward movement of the South American plate over the Nazca plate C) northern movement of Baja California and a sliver of western California toward the Hawaiian Islands D) northward movement of India into Eurasia 8) Linear, magnetic patterns associated with mid-ocean ridges are configured as ________. A) concentric circles about a rising plume of hot mantle rocks and magma B) reversed magnetizations along the rift valleys and normal magnetizations along the ridge C) normal and reversed magnetized strips roughly parallel to the ridge D) normal and reversed magnetized strips roughly perpendicular to the ridge axis 9) A typical rate of seafloor spreading in the Atlantic Ocean is ________. A) 2 feet per year B) 0.1 inches per year C) 20 feet per year D) 2 centimeters per year 10) Which of the following energy sources is thought to drive the lateral motions of Earth's lithospheric plates? A) gravitational attractive forces of the Sun and Moon B) electrical and magnetic fields localized in the inner core C) export of heat from deep in the mantle to the top of the asthenosphere D) swirling movements of the molten iron particles in the outer core 11) All of the following are evidence supporting the theory of plate tectonics except for: A) changes in the Moon's orbit due to shifting plates B) ocean floor drilling C) hot spots D) paleomagnetism 12) New oceanic crust and lithosphere are formed at ________. A) divergent boundaries by submarine eruptions and intrusions of rhyolitic magma B) convergent boundaries by submarine eruptions and intrusions of rhyolitic magma C) divergent boundaries by submarine eruptions and intrusions of basaltic magma D) convergent boundaries by submarine eruptions and intrusions of basaltic magma 13) Cooler, older, oceanic lithosphere sinks into the mantle at ________. A) subduction zones along convergent plate boundaries B) transform fault zones along divergent plate boundaries C) rift zones along mid-ocean ridges D) sites of long-lived, hot spot volcanism in the ocean basins 14) A transform plate boundary is characterized by ________. A) stratovolcanoes on the edge of a plate and shield volcanoes on the adjacent plate B) two converging oceanic plates meeting head-on and piling up into a mid-ocean ridge C) a divergent boundary where the continental plate changes to an oceanic plate D) a deep, vertical fault along which two plates slide past one another in opposite directions 15) Mount St. Helens and the other Cascade volcanoes are ________. A) young, active stratovolcanoes built on a continental margin above a sinking slab of oceanic lithosphere B) a row of young, active, shield volcanoes built as western North America moved over a hot spot deep in the mantle C) old, deeply eroded stratovolcanoes built before the Pacific Ocean existed D) old, deeply eroded, basaltic shield volcanoes built when western North America was over the present-day site of the Hawaiian hot spot 16) Which of the following statements apply to the asthenosphere, but not the lithosphere? A) zone in the upper mantle that deforms by plastic flowage B) cool, rigid layer of crust and upper mantle that forms the tectonic plates C) deforms mainly by brittle fracturing and faulting D) partial melting of rising granitic plumes produces huge volumes of basaltic magma 17) Deep ocean trenches are surficial evidence for ________. A) rifting beneath a continental plate and the beginning of continental drift B) sinking of oceanic lithosphere into the mantle at a subduction zone C) rising of hot asthenosphere from deep in the mantle D) transform faulting between an oceanic plate and a continental plate 18) The volcanoes and deep valleys of east Africa are related to a ________. A) continental rift along which parts of the African continent are beginning to slowly separate B) fault allowing Arabia to slip westward past east Africa and penetrate into Turkey C) transform fault aligned with the Red Sea carrying the Arabian and African blocks in opposite directions D) continental collision zone between Africa and the Zagros Mountains along the southern margin of Eurasia 19) The Aleutian Islands occur at a ________. A) convergent boundary on a volcanic arc above a northward-subducting Pacific plate B) transform boundary where North America has moved towards Alaska C) divergent boundary where shield volcanoes are forming D) convergent, continental margin with uplifted fault blocks, much like those of the Basin and Range Province 20) Early results of the Deep Sea Drilling Project clearly justified the conclusion that ________. A) the oceans have not always contained most of Earth's water B) the ocean basins are relatively young; no seafloor with an age in excess of 180 million years was ever found C) Proterozoic rocks are found only as seamounts in the deepest parts of the ocean basins D) the youngest sediments were deposited directly on the oldest seafloor basalts