Geology 101 tamu - Study guides, Class notes & Summaries

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, associated with tectonic activity. can any rock deform in a brittle or ductile manner? CORRECT ANSWER Any rock can deform in a brittle or ductile manner, depending on the conditions of the deformat...

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 name for them, because many are formed from biologic processes] What are sediments? CORRECT ANSWER Sediments are products of mechanical and chemical weathering and deposited on the Earth surface Oft...

FINAL EXAM GEOLOGY 101 TAMU QUESTIONS AND ANSWERS 2024

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 Viscosity CORRECT ANSWER High Temp More Volatiles Less SiO2 (*Mafic*) Flows easily (Basaltic Lava Flows) High Viscosity CORRECT ANSWER Lower Temp Less Volatiles More SiO2 (*Felsic*) Doesn't ...

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 intrusive/plutonic rocks Basalt melt, Hawaii CORRECT ANSWER This is lava/melted rock. This shows Lava flow Basalt flow, Hawaii CORRECT ANSWER This also shows lava flow which is cooling instantly. ...

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 throughout time. Earth's major interacting systems CORRECT ANSWER climate system, the plate tectonic system, and the geodynamic system. climate system involves... CORRECT ANSWER interactions among the ...

GEOLOGY 101 EXAM 3 TAMU QUESTIONS AND ANSWERS 2024

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, mechanically detached from lithosphere, which can move independently craton CORRECT ANSWER interior of a continent, oldest part density CORRECT ANSWER defined as mass per unit of volume, determines how ...

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 pyroclastic CORRECT ANSWER broken bits of ash and rock thrown from a volcano 3 main types of volcanoes CORRECT ANSWER shield composition strato types of lava flows CORRECT ANSWER basaltic- 90% an...