Felsic Study guides, Class notes & Summaries

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 ...

Geology Exam Answer Keys Pillow lavas are associated with ________ eruptions. a. subaerial rhyolitic b. submarine rhyolitic c. subaerial basaltic d. submarine basaltic D A fast-moving flow that resembles fluid concrete consisting of a mixture of water and volcanoclastic debris is termed a ________ a. lahar b. pyroclastic flow c. flood basalt d. hyaloclastite A Normal fault forms during a. compression of the crust b. extension of the crust c. when the crust slide past eac...

Final Exam CRSS 3060 Soils & Hydrology, Questions and Correct Answers, With Complete Solution 2024. soil composition percentages 50% inorganic matter, 5% organic matter, and 45% pore space (water/air) Georgia Regions: Valley & Ridge Ultisol & Inceptisols on steep sedimentary ridges and flat valleys Georgia Regions: Blue Ridge Ultisols n Inceptisols on steep metamorphic mountains Georgia Regions: Piedmont Ultisols on dissected rolling igneous and metamorphic rock Georgia Regions: Sand hi...

Bowens reaction series tells us that mafic minerals such as olivine and pyroxene crystallize from a magma chamber at relatively higher temperatures than felsic minerals such as K-feldspar and quartz. If a magma chamber undergoes fractional crystallization during cooling, the remaining magma should be_________ than the parent magma. - correct answerMore felsic The Earth's upper mantle is mainly made of peridotite, an ultramafic igneous rock with lots of olivine crystals. Which type of magma c...

If a magma chamber undergoes fractional crystallization during cooling, how will the remaining magma differ from the parent magma? - correct answer It will be more felsic What type of magma can be produced when upper-mantle peridotite undergoes decompression along mid-ocean ridges? - correct answer basaltic Mineral - correct answer -Naturally ocurring -inorganic element or compound -has an orderly internl structure and characteristic chemical composition, crystal form, and physical prope...

Geology Final Exam Questions And Answers This metamorphic rock is hard enough to scratch glass. This rock is most likely: (black rock) quartzite The rock shown here is most likely an example of: swirly rock (black and white) regional metamorphism A possible protolith for this metamorphic rock is: smooth grey rock shale What type of metamorphism is likely to be seen in this area shown here? (meteor crate natural landmark) shock metamorphism This metamorphic rock is mainly...

Kilauea - correct answerWhat is an example of a shield volcano? Mt. St. Helens - correct answerWhat is an example of a composite volcano? Rhyolite - correct answerWhich word does NOT fit in with the following set of words describing a single volcano: Mafic, Rhyolite, peaceful, shield volcano The extrusion of lava and gases - correct answerWhat is volcanism? High silica content of the lava (felsic) - correct answerThe main factor contributing to the violent eruptions of Cascade Mounta...

Which is not a requirement for a mineral? A) naturally occurring B) consistent isotopic composition C) well-formed external crystal shapes D) orderly regular atomic or ionic structure E) definite chemical composition - B Which of the following best describes the fundamental concept of superposition? A) Strata with fossils are generally deposited on strata with no fossils. B) Older strata are deposited on younger strata without intervening, intermediate age strata. C) An igneous dyke cut...

Age of Earth 4.6 billion years Seismometer Instrument used to measure horizontal or vertical motion during an earthquake. Uniformitarianism The past geological events can be explained by forces occurring today Alfred Wegener A German scientist who proposed the theroy of continental drift Geologic evidence of continental drift -rock units on different continents have similar structure Mid Ocean Ridges -submerged mountain regions -longest continuous feature of the earths crust -tensio...

Earth Science-Exam 1 Questions and Answers 100% Pass What are the two different kinds of crust? - Correct Answer ️️ -Oceanic and Continental Which crust is denser? - Correct Answer ️️ -Oceanic Which crust is thicker? - Correct Answer ️️ -Continental What specific type of rock is each type of crust made of? - Correct Answer ️️ - Continental-granite Oceanic-basalt What layer contains the crust and the upper mantle? - Correct Answer ️️ -Lithosphere What is unusual abou...