'Fractionation' diaporamas de présentation

Lecture # 4b- Stable Isotopes Part II

Lecture # 4b- Stable Isotopes Part II. 1) Stable Isotopes in Geochemistry: Background, Reprise 2) Intro to Carbon & N Isotopes – More detail. recall: δ notation.  H = (H/L)spl - (H/L)std x1000 (H/L)std. Aside: how talked about:.

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Stable Isotopes Principles of stable isotope fractionation

Stable Isotopes Principles of stable isotope fractionation. Annual layers in a tropical ice cap. Stable isotopes. Many elements of low atomic weight have two or more stable isotopes, e.g.: Hydrogen - H, D, T Carbon - 12 C, 13 C Nitrogen - 14 N, 15 N Oxygen - 16 O, 17 O, 18 O

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Aphasia Test 4

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Size and density of chondrule formation regions from missing isotopic fractionation

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Lecture 7: Back into the Icehouse: Last 55 Myr (Chapter 6)

Lecture 7: Back into the Icehouse: Last 55 Myr (Chapter 6). CO2 evolution in the last 50 Myr. Did climate cool?. Cooling inferred from terrestrial evidences. Antarctic. Arctic. Northern mid-lattiude cooling inferred from leave shape. 10-15 o C. Problem with land records: incomplete,

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Lecture 5 Stable Isotopes

Lecture 5 Stable Isotopes. Isotopes of Elements Types of Isotopes Chart of the Nuclides Measurements Delta Notation Isotope Fractionation Equilibrium Kinetic Raleigh. See E & H Chpt. 5. Key questions: What are isotopes? What are the types of isotopes?

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Lecture 5 Stable Isotopes

Lecture 5 Stable Isotopes. Isotopes of Elements Types of Isotopes Chart of the Nuclides Measurements Delta Notation Isotope Fractionation Equilibrium Kinetic Raleigh. See E & H Chpt. 5. Key questions: What are isotopes? What are the types of isotopes?

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Introduction to Stable Isotopes Notation Fractionation Gear

Introduction to Stable Isotopes Notation Fractionation Gear. Definitions Isotopes Atoms of the same element (i.e., same number of protons and electrons) but different numbers of neutrons. Stable Isotope

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American Indian Probate Reform Act of 2004 (AIPRA)

American Indian Probate Reform Act of 2004 (AIPRA). Floyd H. Azure II Montana State University Extension Undergraduate Student Assistant Marsha A. Goetting Montana State University Extension Family Economics Specialist; Department of Agricultural Economics & Economics.

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C A R I B I C

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Impacts of Increased Local Processing: Update on Ethanol and Soybean Operations

Impacts of Increased Local Processing: Update on Ethanol and Soybean Operations. Iowa Grain Quality Initiative Iowa State University January 11, 2008 Surveys conducted by: ISU Extension Value Added Agriculture Program Sponsored by: ISU Extension Iowa Grain Quality Initiative.

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The Fossil History of the Solar System: Links to Interstellar Chemistry

The Fossil History of the Solar System: Links to Interstellar Chemistry. Edwin A. Bergin University of Michigan. Jeong-Eun Lee UCLA. James Lyons UCLA. Background: Oxygen Isotopes in the Solar System. Oxygen isotope production 16 O produced in stellar nucleosynthesis by He burning

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Isotopic Fossils

Isotopic Fossils. Acknowledgements: Hedges/Keil/Wakeham U. Washington: Aquatic Org. Geochemistry ML Fogel and LA Cifuentes, Isotope fractionation duringprimary production JM Hayes: Fractionation of the isotopes of carbon and hydrogen in biosynthetic processes

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John C. White 1 , Don F. Parker, and Minghua Ren 2 Baylor University Waco, Texas 76798

Variations in alkali feldspar/melt trace-element partitioning during fractionation of peralkalic quartz trachyte-rhyolite suites. John C. White 1 , Don F. Parker, and Minghua Ren 2 Baylor University Waco, Texas 76798 1 Current address: Elizabeth City State University, Elizabeth City, NC 27909

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Topic List: To be modified based on student interest

Topic List: To be modified based on student interest. Background and Theory Fractionation Tracing the hydrologic cycle Isotope effects Paleothermometry Rock-water interaction Carbon Isotopes Strontium Cosmogenic Sulfur Nitrogen. Hydrogen Isotopes. Example

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M.E. Wiedenbeck (JPL/Caltech)

High-energy Elemental, Isotopic, and Charge-State Composition in 3 He-rich Solar Energetic Particle Events. M.E. Wiedenbeck (JPL/Caltech) R.A. Leske, C.M.S. Cohen, A.C. Cummings, R.A. Mewaldt, E.C. Stone (Caltech) T.T. von Rosenvinge (NASA/GSFC). Breneman & Stone 1985. Leske et al. 2007.

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vti_encoding:SR|utf8-nl. vti_author:SR|MSCC\wxs. vti_modifiedby:SR|MSCC\wxs. vti_timelastmodified:TR|08 May 2003 16:01:15 -0000. vti_timecreated:TR|08 May 2003 16:01:15 -0000. vti_title:SR|Hierarchical Model-Based Clustering of Large Datasets Through Fractionation and Refractionation.

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First Detection of OD outside the Solar System

First Detection of OD outside the Solar System. Parise et al. 2012, A&A. In cold and dense clouds, chemical reactions forming molecules with Hydrogen prefer the isotope Deuterium. This process, called fractionation, leads to relatively high abundances of deuterated molecules.

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A. 35000. 25000. Numbers of virus copies (ml). 15000. 5000. 0. HIV-1 only. adeno-LacZ. B. Fractionation. 1 2 3 4 5 6 7 8 9 10 11 12. Adeno-LacZ. Flotillin-1. Adeno-anti sense-FADD. Supplementary Fig.

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