Feldspars - Study guides, Class notes & Summaries

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...

SCSC 301 exams 1,2,3,4 latest update graded A+ A soil with 25% _____ and 25% ______by volume is close to ideal -water; organic matter -Air; mineral matter -Air; water -Mineral matter; organic matter Air; water Soil is a dynamic natural body having properties due to the combined effects of _______ and biota as modified by ________ acting on parent material over time. -climate; topography -Time; Weather -Topography; parent material -Biota; climate -Weather; topography climate; topography A ...

What is the major source of heat for contact metamorphism? a) deep burial and heat from earth's interior b) heat from a nearby magma body c) heat from grinding and shearing on faults d) heat from the spontaneous decomposition of micas and feldspars ~ B What type of environment is typified by brittle deformation? a) deep burial with great confining pressure b) shallow, low temperature settings with high strain rates c) shallow very high temperature settings as in contact metamorphism d...

ASBOG Practice Exam 1 Questions And Answers The assemblage of albite, chlorite, actinolite, and calcite would be most characteristic of - ANS- greenschist facies The assemblage of hornblende + plagioclase would most likely be - ANS-amphiboite facies In carbonates wollastonite + anorthite + diopside would most likely be - ANS-sanidinite facies The formula K(AlSi3O8) is for what mineral - ANS-sanidine What are some common associative minerals with sanidine - ANS-Quartz, Muscovite, Biotite, ...

A soil with 25% _____ and 25% ______by volume is close to ideal -water; organic matter -Air; mineral matter -Air; water -Mineral matter; organic matter correct answer: Air; water Soil is a dynamic natural body having properties due to the combined effects of _______ and biota as modified by ________ acting on parent material over time. -climate; topography -Time; Weather -Topography; parent material -Biota; climate -Weather; topography correct answer: climate; topography A soil ...

The assemblage of albite, chlorite, actinolite, and calcite would be most characteristic of - correct answer greenschist facies The assemblage of hornblende + plagioclase would most likely be - correct answer amphiboite facies In carbonates wollastonite + anorthite + diopside would most likely be - correct answer sanidinite facies The formula K(AlSi3O8) is for what mineral - correct answer sanidine What are some common associative minerals with sanidine - correct answer Qua...

Which of the following sedimentary rocks is usually biochemical in origin? a) bedded salt b) conglomerate c)sandstone d) wacke e) limestone ~ e What platy, parallel, mineral grains are the most visual aspect of foliated metamorphic rocks? a) carbonates b) quartz c) cocoliths d) micas e) feldspars ~ Lava flows are typically finer grained than intrusive igneous rocks. Why? a) The extrusive magma, because it is deep below the surface, cools very slowly producing very ...

cleavage directions ~ 1 (ex. Muscovite) 2 @ 90 degrees (ex. orthoclase) 2 not @ 90 degrees (ex. amphibole) 3 @ 90 degrees (ex. halite) 3 not @ 90 degrees (ex. calcite) 4 (ex. fluorite) fracture ~ - Absence of cleavage when a mineral is broken *Conchoidal fracture* - breaks to form smooth curved surfaces like broken glass specific gravity ~ - Ration of the weight of a mineral to the weight of an equal volume of water - Average value is approximately between 2.5 and 3 magnetism ~...

A soil has a bulk density of 1.3 g/cm^3, a particle density of 2.6g/cm^3, a total porosity of .5 and a gravimetric water content of 0.2. Calculate the water-filled porosity. correct answer: .26 After a growing season of heavy tillage traffic across a soil, a soil property that is affected is: correct answer: bulk density From a biological point of view, the most important role of structural development in clayey textured soils is to provide an increase in: correct answer: macro porosity...

Geology 1110 Exam Questions With Verified Solutions (1) The number of protons is an element's: - answeratomic number (1) The total number of protons and neutrons is an atoms? - answeratomic mass number (1) An atom that has gained electrons is: - answeran anion (1) An atom that has lost electrons is: - answercation (1) The kind of bonding characterized by sharing electrons is: - answercovalent bonding (1) What is ionic bonding - answeratoms that are attracted to each other because of diff...