Formation of kyanite-quartz veins of the Alpe Sponda, Central Alps, Switzerland: implications for Al transport during regional metamorphism

In this study, we have investigated the formation of quartz-kyanite veins of the Alpe Sponda, Central Alps, Switzerland. We have integrated field observations, fluid inclusion and stable isotope data and combined this with numerical geochemical modeling to constrain the chemical processes of aluminum transport and deposition. The estimated P-T conditions of the quartz-kyanite veins, based on conventional geothermometry (garnet-biotite, white mica solvus and quartz-kyanite oxygen isotope thermometry) and fluid inclusion data, are 550±30°C at 5.0±0.5kbar. Geochemical modeling involved construction of aqueous species predominance diagrams, calculation of kyanite and quartz solubility, and reaction-path simulations. The results of the modeling demonstrate that (1) for the given chemical composition of the vein-forming fluids mixed Al-Si aqueous species are dominant in transporting Al, and that (2) fluid cooling along a small temperature gradient coupled with a pH decrease is able to explain the precipitation of the quartz-kyanite assemblages in the proportions that are observed in the Alpe Sponda veins. We conclude that sufficient amounts of Al can be transported in typical medium- to high-grade regional metamorphic fluids and that immobile behavior of Al is not very likely in advection-dominanted fluid-rock systems in the upper and middle crus

Das virtuelle Museum

Das World Wide Web ermöglicht den Museen nicht nur die räumlichen Grenzen ihrer Sammlungen zu überwinden, sondern erlaubt ihnen auch ganz neue Präsentationsmöglichkeiten. Dabei kann das virtuelle Museum sich nicht mehr auf materielle Objekte stützen, sondern muß sich mit digitalisierten Substituten begnügen. In dieser Arbeit wird der Wandel des Museums zum Massenmedium, die Problematik der Objektdigitalisierung und der Einsatz der virtuellen Realität im virtuellen Museum besprochen

Koniag Energy & Water Master Schedule Development Project

A Project Submitted in Partial Fulfillment of the Requirements for the Degree of MASTER OF SCIENCE in Project ManagementIn September of 2022, the companies Dowland-Bach Corp. and TecPro, which are both subsidiaries of Koniag Energy & Water, were relocated to a new fabrication facility in Wasilla, Alaska. They are now being asked by their parent company to work together to manage and complete projects. Being required to share human resources has created a need to be able to efficiently track multiple projects across the two companies from a single platform. This includes accurate tracking of project cost and schedule variance from estimate. The tool identified to address these tasks is the software program Microsoft Project. The planned outcome of this project was the development of a master schedule template, a new job template, material cost tracking, labor cost tracking, a schedule performance index, resource tracking, a resource pool, and a user tutorial on how to operate these tools to derive the required business objectives. Structured in this Project Report are the results of the research and analysis performed during the execution of this project. Review on researched literature, as well as methodology and approach are captured. Results from the project as well as key aspects and takeaways are provided as well. Upon its successful completion the results of this project have now been made available to both Koniag employees as well as UAA’s Project Management Program. This contribution to the Project Management Body of Knowledge helps Koniag project managers better execute their work and provides a tool kit for students at UAA’s MSPM program to bring with them to the workforce.Title Page / Table of Contents / List of Exhibits / List of Appendices / Abstract and Keywords / Research Sources / Introduction / Literature Review Results / Research Method Approach / Analysis / Results-Products of Project / Key aspects of Application of Project Management Approaches / Conclusions / Recommendations for Further Research / Resources / Appendice

Schreiben im heutigen Deutschland : Fragen an die Vergangenheit /

Includes bibliographical references and index