Physical Geology UH Exam Questions And Answers

"Bauxite" Al(OH) 3 (the ore for Aluminum) - Under extreme chemical weathering conditions (e.g. the tropics), hydrolysis can remove nearly all of the available cations, leaving behind only 1st Step of Forming Sedimentary Rocks - Chemical and mechanical weathering break down rock 2nd Step of Forming Sedimentary Rocks - Erosional Agents transport sediment 3rd Step of Forming Sedimentary Rocks - Deposition occurs when solid particles settle out or when ions in solution are precipitated by inorganic or biological processes 4th Step of Forming Sedimentary Rocks - Diagensis - burial and transformation into sedimentary rock A Horizon - 2nd Highest Layer Largely organic material. Lots of biological activity. Still has humus present (up to 30%). Agate - Inorganically formed Chert Hot springs Agents of metamorphism - Heat Stress (Pressure) Fluids Alpha (α) Emission - Unstable parent nucleus decays: 2 fewer Atomic #, 4 fewer Atomic Mass, Alpha particle emissionAngular Unconformity - An unconformity where the beds below the erosional surface are at an angle to the beds above the erosional surfac Anticline - Arch;Olderrocks on the inside Type of fold Arkose - Sandstone that's at least 25% feldspar Asymmetric Fold - The limbs of a fold are not the same length (not symmetric Axial plane - The planeof mirror symmetry dividing the fold into two limbs B Horizon - 4th Highest Layer