Texas A&M University(TAMU) Geology 101 Tests Bundle Set

Asthenosphere CORRECT ANSWER the layer of the Earth that lies below the lithosphere. It is a layer of solid rock that has so much pressure and heat the rocks can flow like a liquid. principle of uniformitarianism CORRECT ANSWER states that geological processes have worked in the same way througho...

How old is the Earth? CORRECT ANSWER 4.6 billion years old Which of the following is the thickest sphere on Earth? CORRECT ANSWER geosphere Wet mud and earthworm found on the edge of a lake would be considered to be part of which sphere? CORRECT ANSWER biosphere, hydrosphere, geosphere On E...

Deformation CORRECT ANSWER Refers to all changes in the size, shape, or position of a rock body in response to stress. Confining pressure CORRECT ANSWER equal in all directions, associated with the weight of the overlaying rocks. Differential stress CORRECT ANSWER not equal in all directions, ...

age of earth CORRECT ANSWER our understanding of radioactivity helps us accurately determine numerical dates for rocks that represent important events in earth's past. Earth is about 4.6 billion years old. Asthenosphere CORRECT ANSWER "weak sphere" 400km deep, small amount of melting, mechanic...

Buoyancy CORRECT ANSWER What causes magma to rise? Less Dense Material is forced up by a buoyant force CORRECT ANSWER What happens when less dense material is trapped below more dense material Temperature, Volatiles, and Silica CORRECT ANSWER What 3 things does Viscosity depend on? Low Visc...

Where is magma generated? Where are the greatest amounts produced? CORRECT ANSWER the uppermost mantle and at divergent plate boundaries partial melting CORRECT ANSWER incomplete melting if rocks where magma is enriched with ions top factors in viscosity CORRECT ANSWER gas CO2 Sulfer pyro...

General of magma CORRECT ANSWER igneous rocks form as molten rock (magma, lava) cools and solidifies General characteristics of magma Forms from partial melting of rocks Magma at surface is called lava Rocks formed from lava are extrusive/volcanic rocks Rocks formed from magma at depth are intru...

Lahar CORRECT ANSWER mudflow originating from a volcanic slope, also called mass wasting events What is a geological example of both a hot spot AND divergent plate boundary location? CORRECT ANSWER Iceland Where is magma generated? CORRECT ANSWER Uppermost mantle Where is the greatest amoun...

Catastrophism is the idea that _______. CORRECT ANSWER Earth's landscapes have been shaped by sudden worldwide disasters; Earth's landscapes have been shaped suddenly by unknown forces not in operation today Which of the following best explains the principle of superposition? CORRECT ANSWER All...

Detrital rocks CORRECT ANSWER transported sediment as solid particles -Chief constituents of detrital rocks are Quartz, Feldspars, Micas, Clay minerals (the silicate minerals) 'Chemical' rocks CORRECT ANSWER sediment composed of minerals that were once in solution [biochemical is a better na...

Earth History CORRECT ANSWER - The study of change over very long spans of time: millions and billions of years. - 4.56B years old Accretion of the Earth CORRECT ANSWER - Earth formed by accretion of rocky nodules (chondrules) - Nodules and chemical compounds form by condensation in galactic ne...

What is the lithosphere? CORRECT ANSWER crust and upper mantle What is the asthenosphere? CORRECT ANSWER the upper layer of the earth's mantle, below the lithosphere deformable--like playdough Continental lithosphere CORRECT ANSWER -thick -old(4byo) -not dense -many types of rocks oc...

GEOL 101 YANCEY EXAM 1 questions with correct answers

Define uniformitarianism CORRECT ANSWER the theory that changes in the earth's crust during geological history have resulted from the action of continuous and uniform processes. What is the difference between Hypothesis and Theory? CORRECT ANSWER A hypothesis is either a suggested explanation fo...