Search results “Mining and geology university sofia”
Geophysics at Mines
An introduction to Geophysics at the Colorado School of Mines. You'll hear from students and faculty, telling you what exactly geophysics is, and why you might be interested in pursuing it as a course of study, and as a career. http://geophysics.mines.edu
Technical University of Sofia (2017)
The Technical University Sofia, is the largest technical university in Bulgaria. With Decree No 237, published in the State Gazette issue 248 from 24.10.1945, of the National Assembly of Bulgaria, a school called "State Polytechnic" is created with Mechanical engineering faculty with four divisions - mechanical engineering, electrical engineering and mining and geology. It is an independent institution since 1953. It has had its present name and university status since 21 July 1995 and has 14 main faculties based in Sofia, Plovdiv and Sliven, as well as 3 additional ones with education only in foreign languages French, English and German.
Views: 488 TeamSoc21
School of Earth and Environment, Geology and Geophysics
Students share their experience of studying Geology and Geophysics at the School of Earth and Environment, Leeds.
Study Master Geophysics@KIT
The Karlsruhe Institute of Technology (KIT) offers a two year Master's program in Geophysics. It is given in English and includes topics on Earthquake and Exploration Seismology as well as Natural Hazards. Teaching takes place in small groups and In Situ Lectures are taught right on site at geophysically fascinating locations. To enter the Master's program you need a solid background in mathematics and physics. More information: http://www.gpi.kit.edu/english/InternationalMSc.php
I Wanna Be a Geophysicist
Like rocks and exploring our planet? Then you might consider Geophysics as a career. Jesse chats to Geophysicist, Barrett, to find out what is Geophysics, what characteristics are required and the pathway to take to get into the career. Want to see more videos from Student Edge? Click here: https://studentedge.org The Department of Exploration Geophysics at Curtin University provides a dedicated, comprehensive range of internationally recognised, specialist geophysics degree level courses ranging from a Bachelor of Science (Geophysics) undergraduate degree to a Doctor of Philosophy (Geophysics) research degree. We offer training in the latest methods in exploration geophysics using current and emerging technologies relating to geophysical data acquisition, instrumentation, data processing, interpretation, and software modelling. Our academic staff and postgraduate students are continuously involved in frontier scientific research in this field. Bachelor of Science (Geophysics) Applied Geology and Geophysics Double Degree Master of Science (Geophysics) Master of Philosophy (Geophysics) Courses Listing Geophysics Bachelor of Science (Geophysics) - BSc(Curtin) - MJRU-GEOPH Science and Engineering Geophysicists study the subsurface of the Earth and explore for natural resources such as oil, minerals and groundwater, and help solve environmental problems from natural hazards to pollution monitoring and civil engineering. Geophysicists use technology to collect, display and interpret data, and apply physics, computing and maths in practical ways on commercial and environmental projects. What the course involves In your first year you will complete a physical sciences foundation year that provides the necessary knowledge to pursue your interest in the physical disciplines of science. You will examine different forms of energy and matter, and the physical and chemical properties of elements and compounds. This foundation year provides a pathway to your second year studies in chemistry, geophysics or physics. In the geophysics major you will gain knowledge in areas of physics and mathematics and be introduced to: - geophysical processes - geology - electronic measurement - experiment and survey design - scientific computing and data processing - methods of analysing and imaging the Earth. - You will explore geophysical methods such as seismic, magnetics, gravity, electrical and electromagnetic methods and undertake field trips. You will gain a thorough knowledge and practical skills in geophysical techniques used in oil and gas, minerals and groundwater exploration industries. To enrol in the geophysics major, you must apply for the Bachelor of Science (Science) and satisfy the necessary geophysics prerequisites.
Views: 27111 Student Edge
Drill, baby, drill: RenGold CEO Richard Bedell
Richard L. Bedell, Jr. interviewed at the 2015 Vancouver Resource Investment Conference in Vancouver (Jan 19, 2015). Mr. Bedell is a director and President and Chief Executive Officer of RenGold. Along with Ron Parratt, Richard was a co-founder and Executive Vice President and Director for AuEx. Richard has over 30 years of exploration experience including an adjunct faculty position in Exploration Geophysics at the Mackay School of Earth Sciences & Engineering. Previous work experience includes Homestake Mining Company as part of the Global Target Selection Team and managing the Technical Group for exploration and as an exploration geologist with BP Minerals and Rio Tinto. Richard is a recognized expert in remote sensing and geo-spatial technologies and was lead editor for a recent Society of Economic Geologists publication on remote-sensing. Richard is a Certified Professional Geologist (CPG) with the American Institute of Professional Geologists. He is a graduate from The School of Natural Sciences & Mathematics, Hampshire College with a Bachelor of Arts degree in 1979, earned a Master of Science in geology from the University of Toronto in Ontario in 1985, and a Master of Science in Remote Sensing and GIS from the University of London, United Kingdom in 1986. Richard is a Fellow with the Society of Economic Geologists, a member of the Northwest Mining Association, Geological Society of America, the Geologic Remote Sensing Group, and a member of the Geological Society of Nevada. Music from http://www.bensound.com
Views: 376 CEO.CA
Strike Gold   Careers in Geology
Explore the fields of geology and geophysics, and the options for study at Macquarie, home to leading research centres and state-of-the-art facilities. This lecture also discusses the variety of career paths available to geology and geophysics graduates, which attract excellent graduate starting salaries. http://www.mq.edu.au/
Views: 3594 Macquarie University
Sonya Dehler: Geophysicist
Sonya gives an entirely new meaning to being a "rock star". Learn about her career as a geological research scientist.
Views: 4039 Techsploration
Recorded with http://screencast-o-matic.com
Views: 154 Sophie Tan
Day in the life of a Geologist
Did you know that geologists make a median hourly wage of £19.14? With the need for geologists increasing, learn more about the career! For more videos like this, visit https://www.careersbox.co.uk. Careersbox is the national careers film library, a free careers resource showing hundreds of real people doing real jobs. We're independent of any employer and give you the objectivity you need to understand the labor market.
Views: 578 CareersBox
Mining Interactive University presents a free online lecture by Dr. Michael Berry - Part 4
Mining Interactive University is proud to present a free online lecture by Dr. Michael Berry. The topic of this lecture is - Discovery Investing Wealth Creation in Troubling Times. For more information and to view the slides associated with this video, please visit: http://www.mininginteractive.com/videos/videos.php?link=20090713_MIU_Berry&tabselect=miu
Views: 106 mininginteractive
geology project
Geology project
Views: 71 MrSabritaz707
Meet a Geophysicist: Jenny Nakai
Jenny talks about her interest in engineering and science as a means to be useful and solve problems and the importance of education in the Navajo culture in general. She explains how resource extraction such as coal mining has had a negative environmental impact on the Navajo land and how, in the past, few tribal members have had the knowledge and training to deal with these problems or to educate the public about ways to solve them. Today, she is committed to sharing with others what she has learned through her studies and to helping scientists communicate their findings to the broader community. Video produced by McLean Media. Additional images courtesy Jenny Nakai, Steve Semken, WMUK (Western Michigan University), DiscoverNavajo, VICE News, Google Earth. Title animation by NASA and the Visible Earth Team (http://visibleearth.nasa.gov). Title music provided by Flying Hands Music. Additional Music: “White” and "Finding Movement" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0, http://creativecommons.org/licenses/by/3.0/ Copyright McLean Media, all rights reserved This material is based upon work supported by the National Science Foundation under Grant Number EAR-1252031. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the producers and participants and do not necessarily reflect the views of the National Science Foundation.
Views: 396 EarthScope
Study Geology - How Geologists analyse rocks
Study Geology degree at University of South Wales. Dr Ian Skilling, award leader for the Geology degree, explains how to analyse rocks. http://www.southwales.ac.uk/study/subjects/geography-geology-environment/
I. Grigorova and I. Nishkov, University of Mining and Geology “St. Ivan Rilski”, Bulgaria.
Seems Old Gold Mines are loaded with Gold
Mudfossil Research on Giant creatures and the chemistry of the transition metals in blood led to this amazing result. The blood will settle into vast Quantities if conditions are correct. After near bankruptcy The Beta Hunt mine dug a little deeper and as MFU predicted vast Gold and still pulling out Millions in a single chunk.
Views: 7779 Mudfossil University
A geological journey
Nome: Sofia Celeste Cognome: Lorenzetti Categoria del contest: Geologiovani Titolo del video: A geological journey Quando cresci "circondata" da fossili,minerali e rocce non puoi che finire per studiare geologia! Il video racconta del mio rapporto con la geologia e di come si è evoluto negli anni, dalla collezione di mio nonno (di cui nel video ne vediamo solo alcuni esemplari), all'università dove frequento il secondo anno della facoltà di scienze geologiche fino alla passione per la barca a vela che mi porta alla scoperta del Mar Mediterraneo. When someone grows up "surrounded" by fossils,minerals and rocks the only way for the future is going to study geology! The video talks about my personal relation with Geology and shows how all this developed throught the years, from my grandpa's collection to the university, where i attend on the second year, since my passion for sailing across Mediterran sea.
Views: 270 ON THE ROCKS
MSc Geophysics at the University of Aberdeen
MSc Geophysics degree programme at the University of Aberdeen.
Thomas - Day in the Life - Geoscience
A day in the life of a Geologist at ConocoPhillips.To learn more visit careers.conocophillips.com/en/university-recruitment
Views: 9438 ConocoPhillips
My Dream Job
hi, everyone.My name is Duong. Today. I am going to talk about my dream job. Then, I will present this topic. Now, I am study at HN university of mining and geology. My major is petroleum geophysical. I hope, after I graduated, I will become geophysical engineer. Because have 3 reasons. Reasons 1: I will research the earth, research rock. So, i will alway love it. Reasons 2: If you are geophysical engineer. You will be going to a lot of places. The next.Reasons 3: Because I want to high salary. Thank you for kind attention
Geophysics - in search of hidden continents and mountains
Searching for hidden continents and mountains ... Geoscientists take us for a rail journey from Kraków to Warszawa, crossing “the most important boundary in Europe”. It is invisible and very few know about it … We can identify this invisible boundary thanks to geophysics, the science which holds the key to a hidden and yet fascinating subsurface world. You are welcome to join this trip. Prof. Marek Lewandowski and Dr habil. Piotr Krzywiec from the ING PAN - Institute of Geological Sciences of the Polish Academy of Sciences make the geophysics easy to follow and enjoy.
Views: 1633 ING PAN
2015 UPGMA awardee - Sofia Marah Frias
Hi, I’m Sofia Marah Frias, UPGMA Awardee for 2015 Q: Tell us about yourself A: Yung field of interest ko in geology is ore deposit geochemistry focusing on hydrothermal alteration and mineralization Q: Motivation for studying A: Yung motivation ko for studying is to be able to finish MS as soon as possible Q: What are your study habits? A: First I plan ahead, aalamin ko muna kung gaano katagal before yung mga exams, and then gumagawa ako ng checklist ng mga bagay na dapat kong gawin. And then I read books while also reading through my notes and then gumagawa ako ng isang combined reviewer for that specific subject. Q: What do you do aside from studying? A: Currently, I’m an instructor in the university. I teach different subjects, 11, 11.1, 40, 170, and 194. Aside from that, I’m also a graduate assistant at the Earth Materials Science Laboratories Q: Plans for the future A: In the future, I plan to finish my MS and siguro magtrabaho sa mga mining companies especially sa mga porphyry and epithermal systems. Q: What do you plan to do with the grant? A: Yung grant gagamitin ko siya to fund my thesis. Kasi ngayon kailangan ko ng funding to be able to proceed with my sample analysis. Q: Message to all aspiring UPGMA awardees A: My message to all aspiring UPGMA awardees, magaral kayong mabuti and napakagandang opportunity na mapili kayo sa isang ganito kaprestigious na grant because maganda siyang credentials and also it will help you fund your research projects in the future Q: Who would you like to thank? A: I would like to thank the Iuvenis Orbis Geological Fraternity and the National Institute of Geological Sciences for choosing me as one of the awardees
Geological, Petroleum, Sample Test, & Geophysical Data Technician Career Video
This career video provides day in the life information about the following jobs and occupations. JOB TITLE: Geological and Petroleum Technicians OCCUPATION DESCRIPTION: Assist scientists or engineers in the use of electronic, sonic, or nuclear measuring instruments in both laboratory and production activities to obtain data indicating potential resources such as metallic ore, minerals, gas, coal, or petroleum. Analyze mud and drill cuttings. Chart pressure, temperature, and other characteristics of wells or bore holes. Investigate and collect information leading to the possible discovery of new metallic ore, minerals, gas, coal, or petroleum deposits. RELATED JOB TITLES: Geophysical Data Technicians, Geological Sample Test Technicians ONET: 19-4041.00 JOB TITLE: Geophysical Data Technicians OCCUPATION DESCRIPTION: Measure, record, or evaluate geological data, using sonic, electronic, electrical, seismic, or gravity-measuring instruments to prospect for oil or gas. May collect or evaluate core samples or cuttings. RELATED JOB TITLES: Exploration Manager, Field Engineer, Geological E-Logger, Geological Technician, Geoscience Technician, Geoscientist, Geotechnician, Observer, Soils Technician, Technical Assistant ONET: 19-4041.01 JOB TITLE: Geological Sample Test Technicians OCCUPATION DESCRIPTION: Test or analyze geological samples, crude oil, or minerals to detect presence of petroleum, gas, or mineral deposits indicating potential for exploration or production or to determine physical or chemical properties to ensure that products meet quality standards. RELATED JOB TITLES: Core Inspector, Electron Microprobe Operator, Environmental Field Services Technician, Environmental Sampling Technician, Laboratory Technician, Materials Technician, Organic Section Technical Lead, Physical Science Technician, Quality Control Technician (QC Technician), Research Associate ONET: 19-4041.02 Learn more about this and other occupations, jobs, and careers at: www.CareerOneStop.org
Views: 451 CareerOneStop
BP's Graduates - Seb, a geologist in Sunbury
If you'd like to see more about Seb or are a student or graduate and want to work at the forefront of innovation at BP, please explore our website dedicated to students and graduates http://www.bp.com/en/global/corporate/careers/students-and-graduates.html
Views: 3016 BP
We are the Master’s Programme in Geology and Geophysics - Jussi Heinonen, PhD
Jussi Heinonen, PhD, Master’s Programme in Geology and Geophysics Kuvaaja: Esko Kuittinen
Academics Challenged on Devils Tower Basalt
Send this to your professors and DEMAND a response. Theoretical classes......You paid for nothing it seems but thats just my opinion based on my experiences! I presented specimens certified by DNA and anatomist and cat scans and the Universities refused...Dozens and not one will even respond as they are finally cornered. They assaulted Trump for his scam....The Academics are the biggest scam and cult in history but the arrogance wins the day. Mr President maybe you should make them also FORGIVE THE LOANS because its literally fraud at this point IMO
Views: 22687 Mudfossil University
University of Montana - Department of Geosciences
Our mission is to develop new knowledge of Earth’s history, environment, and resources; engage our students in the process; and share that knowledge broadly.
Petroleum geophysics  Marwan Charara
Принято считать, что запасов нефти хватит на несколько десятилетий, а человечество уже прошло углеводородную стадию своей истории. Это не так. Без нефти можно обойтись в энергетике, но нельзя ее заменить в производстве полимеров, из которых сделан современный мир. Разведка и добыча углеводородов — амбициозная высокотехнологическая задача. Для ее решения используются методы геофизики, химии, математического моделирования, алгоритмы машинного обучения — и не только. В совместном курсе ПостНауки и Сколковского института науки и технологий «Наука нефти» (https://postnauka.ru/courses/84610) профессора магистерской программы «Нефтегазовое дело» рассказывают о последних достижениях своей науки #НаукаНефти
Views: 2000 ПостНаука
Interview with Quaternary Geologist Dr. Dietsch
A great interview with Dr. Craig Dietsch from the Geology Department at the University of Cincinnati. Discussion of Quaternary tectonic geomorphology, and collaborative opportunities in geology. Insight into his research and interests - from studying erosion rates in the Himalayas to brewing his own beer!
Views: 261 potterrs1
Paleontology and Petrography practice  2012
The song belongs to its rightful owners! Video from this year's geology practice of the students from Sofia University "St.Kliment Ohridski"
Views: 349 svetla9101
Bucknell Magazine: Eva Lipiec
Bucknell University grad Eva Lipiec ’10 was a geology major at Bucknell. Today, as an analyst for the Congressional Research Service, she keeps Congress briefed on threats to the coastal U.S. Get more Bucknell alumni stories at bucknell.edu/bmagazine.
Views: 276 BucknellU
Interview with Geophysics alumnus Geeta Persad
Alumna Geeta Persad, BS Geophysics '10, now a graduate student at Princeton University.
Views: 2958 stanfordearth
Reminiscences of a Geophysicist
Misac Nabighian, distinguished senior scientist in the Department of Geophysics, Colorado School of Mines (CSM), and previously of Newmont Exploration (1967-1998), discusses the many fortunate episodes of his career in geophysics, from Romania to Columbia University, then to Newmont and CSM.
Up and Atom Science: Geology Around Us
Thursday, June 28, 2012: Eve Tannery of WFMZ 69 News at Sunrise and Da Vinci Science Center CEO Troy A. Thrash explore free outdoor geology activities with the Center's resident geologist, David Smith, Ph.D. This episode closes the third season of Up and Atom Science, which explored the science around people every day in eastern Pennsylvania and western New Jersey. All episodes of the Up and Atom series and additional information can be found on the web at www.davincisciencecenter.org/upandatom. Video from WFMZ 69 News, Allentown, Pa., and used with permission.
How I Came to Study Geography at University
Jill shares why she loves Geography and the opportunities and skills that the course has given her. The Southern Universities Network (SUN) is a partnership of six universities and is HEFCE's formally recognised single point of contact in Hampshire, Dorset and the Isle of Wight for state-funded schools and colleges. Comprising the Arts University Bournemouth, Bournemouth University, Southampton Solent University, University of Portsmouth, University of Southampton, and University of Winchester, the partnership aims to ensure that schools and colleges know how to access widening participation and outreach activities which engage, inspire and inform young people about Higher Education (HE) and their future education choices; information can be found on the network’s website www.sunoutreach.org
EVOLUTION  Geology major (Fan made)
Scene from the film, 'Evolution'. For production and distribution details see https://en.wikipedia.org/wiki/Evolution_(2001_film)
Views: 86 HR Bronhaski
Stanford geophysicists use cutting edge technology to study earthquakes around the globe
Earthquake research in the School of Earth Sciences takes a variety of forms and is characterized by creativity and the use of cutting edge technologies.
Views: 3935 Stanford
Zürich Downtown Geology
Zürich downtown, fieldtrip geology explained by Helmut Weissert. Pablo Zamudio & Andreas Gantenbein
Views: 209 Pablo Zamudio
Seismic Geophysicist
WHAT YOU DO: Use computer simulations to look at how the Earth's surface moves over time, compare this with information from satellites to better understand the earthquake cycle, and use it to create disaster response products and plans. EDUCATION: Depending on whether you want to teach at a college, go into industry, or work for a research lab, your educational path will be slightly different. Start with an undergraduate degree, usually in Earth Science; you'll need at least a master's degree if you want to teach, and to be a tenured professor at a research institution, a PhD. Strong background in math, physics, Earth science, and solid mechanics is also important. USEFUL SKILLS: Computer programming, writing (for writing grant proposals), communication, and leadership skills. How to get in: Working in labs as a student, publishing papers (as a part of a professor's or student's research team), and going to scientific meetings to network are all ways to get yourself out there and meet people that can help you. If you're interested in research, you'll need your name on as many publications as possible by the time you start looking for a job. CAREER PATH: In industry or a research lab, getting an internship while in school then pursuing a job at any lab or related company will get your foot in the door. In academic positions, you'll start out as a researcher with some teaching responsibilities; after years of research and experience, you can become a professor with full tenure. PAYBACK: For an academic researcher with a master's degree and 3-5 years of experience, the average salary is about $69,000. With a PhD, you'll make more. If you work in industry, you can work with a bachelor's or a master's and make anywhere from $40,000-$50,000, depending on degree and experience. DOWNSIDES: Securing funding can be a challenge. You spend a good part of your time writing proposals to make sure that your research is paid for, so that you can continue working on what you love. FUTURE OF JOB: Teaching positions at universities are becoming increasingly competitive, as are positions at research labs. Jobs in industry (oil, mining, geotechnical) vary, depending on the market, but can also be competitive depending on the economy and region. NETWORKING: Professional Societies: American Geophysical Union Seismological Society of America Geological Society of America Other Resources: Southern California Earthquake Center (has student internships and other educational resources) Jet Propulsion Laboratory (look on Education page, has lots of resources) NASA (education page has resources) US Geological Survey (has a bunch of educational resources) Earth Science departments at universities/colleges Produced, shot and edited for the National Science Foundation by instructors from the Gigniks program. -Ali Sanford (LACES 12th grade)
Views: 8534 Gigniks
Geology Degree in Houston - San Jacinto College
Learn more at: http://www.sanjac.edu/career/geology The San Jacinto College Associate of Science Degree prepares students for transfer to a four-year institution, where they can pursue a variety of careers. Students also may embark on a career directly from our two-year program in GIS, earth science, quality control and technical lab work.
Views: 150 SanJacCollege
Caltech’s Jessica Watkins: A Roving Mind
Jessica Watkins came to Caltech to collaborate with scientists and engineers across disciplines—and, of course, as a fan of space exploration, to be a part of the Caltech-JPL connection. For a recent PhD interested in studying Mars and mining the trove of information being collected by the Curiosity rover, there was no better place to pursue postdoctoral study. Today, as a member of the Mars Science Laboratory Science Team, Watkins is helping to plan the rover’s activities and analyze its data to understand the history of how the Gale Crater on Mars was formed. She also finds time to assistant-coach the Caltech Women’s Basketball team, write short stories, rock climb, and fly planes. In this video, Watkins, a Chair’s Postdoctoral Scholar in Caltech’s Division of Geological and Planetary Sciences, talks about her longstanding passion for Mars’ geology, why it’s an exciting time to be studying the Red Planet, and how her privately funded fellowship fuels her creativity. Learn more about how Break Through: The Caltech Campaign is supporting Caltech scholars at http://breakthrough.caltech.edu . Produced in association with Caltech Academic Media Technologies. ©2016 California Institute of Technology
Views: 2402 caltech
Schlumberger Career profile: Ali, Support Geologist
Meet Ali, she recently joined the company as a Support Geologist, and enjoys the training opportunities that are on offer to help her progress and develop in the company. Find out more about graduate engineering jobs at Schlumberger here: http://careers.slb.com/recentgraduate.... We are looking for dynamic and driven problem-solvers who can help us find innovative solutions to important oil and gas industry challenges. We’re the world’s largest provider of technology to customers working the oil and gas industry worldwide. Working globally—often in remote and challenging locations—we invent, design, engineer, manufacture, apply, and maintain technology to help customers find and produce oil and gas safely. We offer excellent training and graduate programs, early responsibility and a wealth of opportunities for borderless career progression and development. To apply and to find out more about oil and gas careers at Schlumberger, visit http://www.careers.slb.com. Music: Bensound.com
Views: 2119 Schlumberger Careers
Life of a geophysicist. QAU-Class of 2013
A Geoscientist's career and life. A comic version of Geophysical Surveys.
Rockin' Cosmetics: Aliyah Davis (CAH Science Ambassador Scholarship)
Take this as a reminder for you to thank Mother Earth for that poppin' highlight. Thank you for watching my short mineralogy lesson on muscovite. Did you check your labels? Let me know in the comments below. References: Lapot. (2010). Muscovite window. Retrieved from https://commons.wikimedia.org/wiki/File:Muscovite_window.jpg Marshak, S. (2009). Essentials of geology. New York, NY: W.W. Norton & Company. Muscovite. (n.d.). In Encyclopædia Britannica online. Retreived from https://www.britannica.com/science/muscovite-mineral Neese, W. D. (1999). Introduction to mineralogy. Oxford: Oxford University Press. Sterrett, D. B. (1923). Mica deposits of the United States. United States Geological Survey, Bulletin 740. https://doi.org/10.3133/b740 Transcript : 0:01 What’s up crystal chicks? How often do you visit your local beauty counter or drugstore to find the products that create rockin' glam looks? Little did you know, some of your favorite glosses and shadows contain muscovite, a common mica mineral that gives cosmetics that perfect sparkle in the light. 0:18 To be considered a mineral, muscovite occurs naturally as a solid and has a definable chemical composition [KAl2(Si3AlO10)(OH2)]. Additionally, it’s inorganic, meaning there are no carbon-hydrogen bonds, like sugar. Lastly, it has a crystalline structure. Under special microscopes, we can see that muscovite’s atoms are fixed in a specific, orderly pattern. 0:41 A key muscovite characteristic is its cleavage. Since it’s crystal structure has weak bonds in one direction, it can easily split into thin sheets. This feature made it useful to create window panes in Russia, where it was known as Muscovy glass. 0:58 On Mohs hardness scale of 1-10, muscovite is rated as a 2, which is softer than a fingernail. When it is ground, its pearly luster is comparable to the shimmer of this eyeshadow. 1:11 In nature, muscovite can be found in igneous and sedimentary rocks, but most commonly in metamorphic rocks, specifically those with foliation. Derived from Greek words meta and morphe, metamorphic means “to change form.” During metamorphism, pre-existing rock (also called a protolith) is subjected to intense heat, pressure, and sometimes hot water. Foliation occurs because some of the minerals have a preferred orientation when the rock is exposed to the pressure and temperature changes, which in turn, gives metamorphic rocks their striped appearance. 1:50 The protolith for metamorphic rocks containing muscovite are usually shales, sedimentary rocks that are made of clay and silt. Without melting, the atoms recrystallize to change the shape and size of the minerals or form new minerals. The intensity of metamorphism indicates how minerals develop. The most common types of foliated rocks include slate, phyllite, schist, and gneiss. 2:17 Some of the most valuable muscovite used in cosmetics is sourced from pegmatites, a type of igneous rocks with extremely large crystals because the magma has more time to cool. 2:28 In the early 1800s, muscovite was mined in the United States throughout the Appalachian and Rocky Mountain regions but production later declined as industry preferred inexpensive micas from India. 2:41 Now that you know how muscovite is formed, check your makeup bag. There’s a great chance Earth’s glitter bomb is right at your fingertips.
Views: 23 Aliyah Davis
Volcaneology/Geophysics Seminar with Dr Erik Klemetti
Title: Using crystal ages and compositions to understand how volcanoes come back to life Abstract: Volcanoes spend most of their existence not erupting. This doesn’t mean that there aren’t a multitude of magmatic processes going on underneath. These might include intrusions of new magma, crystallization of existing magma, magma mixing and movement of crystals through the “crystal mush” that sits under the volcano. These processes all leave their compositional and temporal signature on the crystals that form and are subsequently incorporated into the magma that does erupt. I will discuss how examination of zircon crystals in magma can help us unravel the timing and nature of events that occur between volcanic eruptions with a focus on the evolution of the Lassen Volcanic Center in California. Overall, current trace element and U-Th disequilibria age data derived from zircon suggests that an otherwise moribund magmatic system can be brought back to life (rejuvenated) by new intrusions of magmatic that are geologically ephemeral, lasting years to millennia. This conclusion means that the events that lead to the 1915 eruption at Lassen Peak unfolded rapidly before the explosive eruption, the only to occur in California in the last century. Blogs to read for background: http://www.wired.com/2013/08/field-update-2013-examining-the-magmatic-evolution-of-the-lassen-volcanic-center/ http://www.wired.com/2012/11/what-the-heck-is-a-shrimp-anyway-volcano/ http://www.wired.com/2014/02/ephemeral-nature-magma-prior-eruption/ http://www.wired.com/2012/05/volcanic-crystal-forensics-what-minerals-tell-us-about-the-evolution-of-mount-st-helens-and-long-valley/
Views: 425 UCA SPS

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