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Articles 1501 - 1530 of 29715
Full-Text Articles in Physical Sciences and Mathematics
Mgrre_Thinsections_Mgrre-98_3, Mgrre
Mgrre_Thinsections_Mgrre-98_4, Mgrre
Mgrre_Thinsections_Mgrre-99_2, Mgrre
Mgrre_Thinsections_Mgrre-99_4, Mgrre
Mgrre_Thinsections_Mgrre-99_7, Mgrre
Mgrre_Thinsections_Mgrre-99_9, Mgrre
Mgrre_Thinsections_Mgrre-100_1, Mgrre
Mgrre_Thinsections_Mgrre-100_4, Mgrre
Mgrre_Thinsections_Mgrre-100_7, Mgrre
Mgrre_Thinsections_Mgrre-100_8, Mgrre
Mgrre_Thinsections_Mgrre-88_38, Mgrre
Mgrre_Thinsections_Mgrre-88_41, Mgrre
Mgrre_Thinsections_Mgrre-88_42, Mgrre
Mgrre_Thinsections_Mgrre-88_43, Mgrre
Mgrre_Thinsections_Mgrre-88_44, Mgrre
Mgrre_Thinsections_Mgrre-88_45, Mgrre
Mgrre_Thinsections_Mgrre-88_47, Mgrre
Mgrre_Thinsections_Mgrre-88_55, Mgrre
Mgrre_Thinsections_Mgrre-88_57, Mgrre
Mgrre_Thinsections_Mgrre-88_58, Mgrre
Mgrre_Thinsections_Mgrre-88_59, Mgrre
Mgrre_Thinsections_Mgrre-88_68, Mgrre
Mgrre_Thinsections_Mgrre-88_69, Mgrre
Mgrre_Thinsections_Mgrre-88_71, Mgrre
Mgrre_Thinsections_Mgrre-88_74, Mgrre
Single-Crystal Elasticity Of Earth’S Mantle Transition Zone Minerals And High Pressure-Temperature Phase Equilibrium Experiments On Martian Basalts, Wenyi Zhou
Earth and Planetary Sciences ETDs
Wadsleyite and ringwoodite are major minerals in the Earth’s Mantle Transition Zone. Global and local seismic studies have detected strong lateral variations in seismic velocity and anisotropy in the Mantle Transition Zone, reflecting temperature and possible composition variations. Interpretation of these seismic observations requires knowledge of thermoelastic properties of wadsleyite and ringwoodite with different compositions (water and Fe contents) under high pressure-temperature conditions. In this dissertation, we have measured single-crystal elastic properties of wadsleyite and ringwoodite under high pressure-temperature conditions by Brillouin spectroscopy. Based on our measurements and previous experimental results, we further model the effects of water and Fe …
Evaluating Our Reliance On Rare Earth Minerals And Platinum Group Metals Over The Period Of 2012 To 2021, Ryan Smith
Evaluating Our Reliance On Rare Earth Minerals And Platinum Group Metals Over The Period Of 2012 To 2021, Ryan Smith
Spring Showcase for Research and Creative Inquiry
Rare Earth Elements (REE’s) are minerals used in our everyday lives. They can be found in our household appliances, phones, computers, cars, as part of wind turbines and solar panels. The US relies on imports of these rare earths from several other countries (e.g. China, Estonia, Malaysia, and Japan) as we cannot mine a majority of the minerals (e.g. cerium, lanthanum, europium, etc) domestically. Since the year 2012, the US has imported approximately 3,000 metric tons of rare earths, and in recent years, this number significantly increased. As of 2021, the US now imports approximately 43,000 metric tons of rare …
Most Recent Rupture On The Boulder Creek Fault Triggered Bedrock Landsliding In The Nooksack Watershed, Whatcom County, Washington, Abigail Catherine Underwood
Most Recent Rupture On The Boulder Creek Fault Triggered Bedrock Landsliding In The Nooksack Watershed, Whatcom County, Washington, Abigail Catherine Underwood
Dissertations and Theses
Catastrophic bedrock landslides with volumes ranging from 106 to 108 m3 contribute to rapid landscape evolution, often resulting in erosion rates that exceed the long-term average rates caused by tectonic uplift. Understanding the spatiotemporal trends of large bedrock landslides helps us understand previous drivers of landscape evolution as well as predict how the landscape will respond in the future. The Nooksack Watershed, Whatcom County, Washington, is particularly susceptible to large slope failures because of its high relief, seismic activity, local geology, and relatively abundant precipitation. Specifically, folded and faulted bedrock structures conducive to landsliding in addition to …
Mgrre_Thinsections_05_A_87, Mgrre