cleanup date May 2011 The field of geochemistry involves study of the chemistry chemical composition of the Earth and other planet s, chemical processes and reactions that govern the composition of Rock geology rock s, water , and soil s, and the cycles of matter and energy that transport the Earth s chemical components in time and space, and their interaction with the hydrosphere and the atmosphere . Some subsets of geochemistry are Isotope geochemistry Determination of the relative and absolute concentrations of the chemical element element s and their isotope s in the earth and on earth s surface. Examination of the distribution and movements of elements in different parts of the earth crust, mantle, hydrosphere etc. and in minerals with the goal to determine the underlying system of distribution and movement. Cosmochemistry Analysis of the distribution of elements and their isotopes in the universe cosmos . Biogeochemistry Field of study focusing on the effect of life on the chemistry of the earth. Organic geochemistry A study of the role of processes and compounds that are derived from living or once living organisms. Aqueous geochemistry Understanding the role of various elements ... geochemistry Applications to environmental, hydrological and mineral exploration studies. Victor Goldschmidt is considered by most to be the father of modern geochemistry and the ideas of the subject ... See also List of publications in geology Geochemistry Important publications in geochemistry Petrology ... science referenceworks 9780080437514 Treatise on Geochemistry . 9 Volumes. Elsevier Marshall, C ... 0 Encyclopedia of Geochemistry . ISBN 1 4020 4496 8. Berlin Springer. Bernard Gunn http www.Geokem.com The Geochemistry of Igneous Rocks Gunter Faure 1986 . Principles of Isotope Geology , John ..., interpretation Longman . ISBN 978 0582067011 W.M. White Geochemistry http www.imwa.info geochemistry Free Download References reflist Geology Category Geochemistry Category Earth sciences Category ... more details
Organic geochemistry is the study of the impacts and processes that organism s have had on the Earth . The study of organic geochemistry is usually traced to the work of Alfred E. Treibs , the father of organic geochemistry. ref Keith A. Kvenvolden Organic geochemistry A retrospective of its first 70 years Organic Geochemistry volume 37 2006 ,1 11. DOI 10.1016 j.orggeochem.2005.09.001 ref Treibs first isolated metallo porphyrin s from petroleum. This discovery established the biological origin of petroleum, which was previously poorly understood. ref Treibs, A.E. Chlorophyll und H minderivate in organischen Mineralstoffen Angewandte Chemie 1936, volume 49, 682 686. DOI 10.1002 ange.19360493803 ref Metalloorphyrins in general are highly stable organic compound s, and the detailed structures of the extracted derivatives made clear that they originated from chlorophyll . The relationship between the occurrence of organic compounds in sedimentary deposits and petroleum deposits has long been of interest. ref Trask, P.D. Origin and Environment of Source Sediments The Gulf Publishing Co., 1932, Houston, TX. ref Studies of ancient sediment s and rock provide insights into the origins and sources of oil petroleum geochemistry and the biochemical antecedents of life. Modern organic geochemistry includes studies of recent sediments to understand the carbon cycle , climate change , and ocean processes. References references Category Geochemistry Category Soil chemistry Geochemistry Geology stub it Geochimica organica no Organisk geokjemi pl Geochemia organiczna uk ... more details
Petroleum geochemistry is the application of chemical principles to the study of the origin, migration, accumulation, and alteration of petroleum... John M. Hunt, 1979 . ref Hunt, J.M., 1979. Petroleum Geochemistry and Geology . Freeman, San Francisco ISBN 0716710056 ref Petroleum is generally considered oil and natural gas es having various compounds composed of primarily hydrogen and carbon. They are usually generated from the decomposition and or thermal maturation of organic matter . The organic matter originated from plant s and algae . The organic matter is deposited after the death of the plant in sediments , where after considerable time, heat, and pressure the compounds in the plants and algae are altered to oil, gas, and kerogen . Kerogen can be thought of as the remaining solid material of the plant. The sediment usually clay and or calcareous lime ooze, Lithification hardens during this Diagenesis alteration process into Rock geology rock ie. shale and or limestone . The shale or limestone rock containing the organic matter is called the source rock because it is the source, having generated the petroleum. In our quest to find more oil and gas, we use numerous petroleum Geochemistry geochemical techniques to 1 identify source rocks and determine the amount, type, and maturation level of the organic matter 2 evaluate the potential timing of petroleum migration from the source rock 3 assess the potential migration pathways and 4 correlate petroleum compounds found in reservoirs, leaks, and surface seeps to find new pools of petroleum. Some of the petroleum geochemical techniques used are stable isotope s hydrocarbon analysis fingerprinting of specific organic compounds biological organic markers with gas chromatography GC and gas chromatography mass spectrometry GC MS maturity indicators like vitrinite reflectance laboratory pyrolysis and analysis kerogen typing and other more exotic techniques. References Reflist Category Geochemistry Category Petroleum chem ... more details
In geochemistry , compatibility is a measure of how readily a particular trace element substitutes for a major element within a mineral . Compatibility of an ion is controlled by two things its valence chemistry valence and its ionic radius . Both must approximate those of the major element for the trace element to be compatible in the mineral. For instance, olivine an abundant mineral in the upper Mantle geology mantle has the chemical formula Mg,Fe sub 2 sub SiO sub 4 sub . Nickel , with very similar chemical behaviour to iron and magnesium , substitutes readily for them and hence is very compatible in the mantle. The compatibility of an element in a Rock geology rock is a weighted mean weighted average of its compatibility in each of the minerals present. By contrast, an incompatible element is one that is least stable within its crystal structure. Compatibility controls the partitioning of different elements during melting . If an element is incompatible in a rock, it partitions into a magma melt as soon as melting begins. In general, when an element is referred to as being compatible without mentioning what rock it is compatible in, the mantle is implied. Thus incompatible elements are those that are enriched in the continental crust and depleted in the mantle. Examples include rubidium , barium , uranium , and lanthanum . Compatible elements are depleted in the crust and enriched in the mantle, with examples nickel and titanium . See also Magma Mineral Isotope geochemistry Continental crust Mantle geology Mantle Igneous differentiation Fractional crystallization geology Fractional crystallisation External links White, William M., 2005. http www.imwa.info Geochemie Chapters.HTML cite Geochemistry cite Online textbook Category Geochemistry nl Compatibel element ... more details
Isotope geochemistry is an aspect of geology based upon study of the relative and absolute concentrations of the chemical element elements and their isotope s in the Earth . Variations in the abundance of these isotopes, typically measured with an isotope ratio mass spectrometry isotope ratio mass spectrometer or an accelerator mass spectrometry accelerator mass spectrometer , can reveal information about the age of a rock or the source of air or water. Isotope ratios can even shed light on chemical processes in the atmosphere. Broadly, the field of isotope geochemistry is divided into two branches stable isotope stable and radiogenic isotope geochemistry. Stable isotope geochemistry For most stable isotopes, the magnitude of fractionation from kinetic fractionation kinetic and equilibrium fractionation is very small for this reason, enrichments are typically reported in per mil , parts per thousand . ref name drever 2002 cite book title The Geochemistry of Natural Waters last Drever first James publisher Prentice Hall date 2002 location New Jersey isbn 0 13 272790 0 pages 311 322 ref These enrichments represent the ratio of heavy isotope to light isotope in the sample over the ratio ... isoig res funda.html title USGS Isotope Tracers Resources Isotope Geochemistry accessdate ... ref Radiogenic isotope geochemistry Lead lead isotope geochemistry Lead has four stable isotopes ... Chemical element elements , primarily uranium and thorium . Lead isotope geochemistry is useful ... isotope s Environmental isotopes Geochemistry Isotopic signature Radiometric dating General online ... University of Ottawa http wwwrcamnl.wr.usgs.gov isoig isopubs itchch2.html Fundamentals of Isotope Geochemistry ... John Wiley & Sons . Hoefs J., 2004. Stable Isotope Geochemistry Springer Verlag . Sharp Z., 2006. Principles of Stable Isotope Geochemistry Prentice Hall . sup 3 sup He sup 4 sup He Burnard ... and production research and development Chronology Category Geochemistry Category Geophysics Category ... more details
Refimprove date May 2010 The European Association of Geochemistry is a pan European organization founded to promotes geochemical research. ref http www.eag.eu.com ref The EAG organizes conferences, meetings and educational courses for geochemists in Europe, including the Goldschmidt conference which it co sponsors with the North American Geochemical Society . Publications The European Association of Geochemistry publishes, co publishes, or sponsors the following Chemical Geology 24 issues a year Elements An International Magazine of Mineralogy, Geochemistry, and Petrology 6 issues a year Awards The European Association of Geochemistry presents the following awards ref http www.eag.eu.com awards ref The Urey Medal European Association of Geochemistry for outstanding contributions advancing geochemistry over a career. The Science Innovation Award for an important and innovative breakthrough in geochemistry. The Houtermans Award for exceptional contributions to geochemistry made by scientists under 35 years old. Geochemical Fellows Awarded annually by the Geochemical Society and the European Association of Geochemistry to outstanding scientists who have, over some years, made a major contribution to the field of geochemistry. External links http eag.eu.com European Association of Geochemistry homepage References Reflist Category Chemistry organizations Category Geology organizations ... more details
Guiyang Institute of Geochemistry zh c , was founded in 1966 by the Beijing Institute of Geochemistry, Chinese Academy of Sciences . See also Geochemistry Guiyang External links http www.gyig.ac.cn Official website http www.kmb.ac.cn Kunming Branch of CAS CAS Kunming coord missing Guizhou Category Research institutes in China Category Guizhou ... more details
Primary sources date January 2008 The IAGC International Association of GeoChemistry , formerly known as the International Association of Geochemistry and Cosmochemistry is affiliated with the International Union of Geological Sciences and has been one of the pre eminent international geochemical organizations for over thirty five years. The principal objective of the IAGC is to foster co operation in, and advancement of, geochemistry in the broadest sense. This is achieved by working with any interested group in planning symposia and other types of meetings related to geochemistry , sponsoring publications in geochemistry of a type not normally covered by existing organizations and, the activities ... regular symposia and the official journal, Applied Geochemistry. Mission statement The International Association of GeoChemistry is a private, not for profit international organization committed ... and education cooperation in geochemistry through outreach activities that include establishing internal ... cooperation, sponsoring international scientific meetings related to geochemistry, disseminating new knowledge through publication of the journal Applied Geochemistry, fostering communication in geochemistry ... geochemists, contributing to geochemical education, enhancing the visibility of the science of geochemistry ... of Geochemistry and Cosmochemistry IAGC was formally founded on 8 May 1967. Prior to that time ... on geochemistry of the IGC, IUGG and IUPAC in New Delhi in 1964, but was himself unable to attend ... are usually published. In 1986 the IAGC launched its official journal, Applied Geochemistry. At the General ... to reflect the applied geochemical nature of the IAGC now the International Association of GeoChemistry . External links http www.iagc society.org International Association of GeoChemistry Official Website DEFAULTSORT International Association Of Geochemistry Category Geology organizations Category Geochemistry Category Academic organizations ... more details
Regional geochemistry is the study of the spatial variation in the chemical composition of materials at the surface of the Earth , on a scale of tens to thousands of kilometres. Important parameters to consider when designing or evaluating a geochemical survey are Areal extent of the survey Sampling density The type of samples collected soil, stream water, vegetation, bedrock, etc. Post collection treatment of the samples e.g. sieving of soil samples into different particle size fractions Methodology of chemical analysis harvtxt Garrett Reimann Smith Xie 2008 describe how the discipline has evolved from its beginnings in Russia in the 1930s. The first surveys were aimed at mineral exploration. In recent years, many surveys have emphasised a more broad based environmental mapping approach. Numerous government agencies around the world have initiated multi year systematic geochemical mapping projects, aimed at producing baseline geochemical maps of very large areas. See, for example, the description by harvtxt Johnson Breward Ander Ault 2005 of the British Geological Survey s G BASE project. References Citation last Garrett first R.G. last2 Reimann first2 C. last3 Smith first3 D.B. last4 Xie first4 X. publication date November 2008 year 2008 month November title From geochemical prospecting to international geochemical mapping a historical overview periodical Geochemistry Exploration, Environment, Analysis publisher Geological Society of London volume 8 issue 3&ndash 4 pages 205&ndash 217 url http geea.geoscienceworld.org cgi content abstract 8 3 4 205 archiveurl http www.webcitation.org 5gzbm3zHS archivedate 23 May 2009 doi 10.1144 1467 7873 08 174 accessdate 23 May 2009 Citation last Johnson first C.C. last2 Breward first2 N. last3 Ander first3 E.L. last4 Ault first4 L. publication ... and Northern Ireland periodical Geochemistry Exploration, Environment, Analysis publisher Geological ... 1467 7873 05 070 accessdate 23 May 2008 Category Geochemistry ... more details
The Urey Medal is given annually by the European Association of Geochemistry for outstanding contributions advancing Geochemistry over a career. ref http www.eag.eu.com Urey.html European Association of Geochemistry ref The award is named after Harold Urey . class wikitable align center Urey Medal Winners Year Name 1990 Wallace S. Broecker and Hans Oeschger 1995 Samuel Epstein geochemist Samuel Epstein , Robert N. Clayton , and Hugh P. Taylor Jr. 1997 Geoffrey Eglinton and John Hayes geologist John Hayes 1998 Jean Guy Schilling 1999 John M. Edmond 2000 Donald DePaolo 2001 Keith O Nions 2002 Grenville Turner 2003 Nicholas Shackleton 2004 Harold C. Helgeson 2005 Alex Navrotsky 2006 Herbert Palme 2007 Harry Elderfield 2008 Pascal Richet 2009 Fran ois Morel 2010 Charles Langmuir References references Category Geology awards ... more details
italic title Infobox journal title Elements An International Magazine of Mineralogy, Geochemistry, and Petrology cover editor David J. Vaughan, Harry Y. McSween, James I. Drever discipline Mineral sciences peer reviewed Invited papers formernames abbreviation publisher 16 scientific societies country Canada, USA frequency Bimonthly history 2005 to present openaccess license impact impact year website link1 http www.elementsmagazine.org index.htm link1 name Elements home page link2 link2 name JSTOR OCLC 57359406 LCCN CODEN EOOCAG ISSN 1811 5209 eISSN 1811 5217 boxwidth Elements An International Magazine of Mineralogy, Geochemistry, and Petrology , established in January 2005, is a bimonthly magazine , published by 16 scientific societies see below . It publishes peer reviewed papers which are part of a theme based collection, along with other types of articles. The co editors are David J. Vaughan University of Manchester , Harry Y. McSween University of Tennessee , James I. Drever University of Wyoming . The focus of this magazine is broad coverage of the mineral sciences. Scope Coverage includes invited peer reviewed papers for thematic collections. The each different thematic collection is the focus of a particular published issue. Proposed topics of interest are submitted to editors for review. The magazine also covers conference reports, policy news, as well as news of the Societies. Publishing societies Elements is published by the Mineralogical Society of America , the Mineralogical Society of Great Britain and Ireland, the Mineralogical Association of Canada, the Geochemical Society , the Clay Minerals Society , the European Association of Geochemistry , the International Association of GeoChemistry , the Soci t Fran aise de Min ralogie et de Cristallographie , the Association of Applied Geochemists , the Deutsche Mineralogische Gesellschaft , the Societ Italiana ... 09 23 ref Chemical Abstracts Service CASSI References Reflist Category Geochemistry Category Petrology ... more details
Gunter Faure is a leading geochemistry geochemist who currently holds the position of Professor Emeritus in the School of Earth Science of Ohio State University . He obtained his PhD from the Massachusetts Institute of Technology in 1961. ref http www.earthsciences.osu.edu faculty bios.php?id 15 Gunter Faure at OSU ref References Reflist Category Geochemistry ... more details
, Canada. The society co sponsored the conference, along with the European Association of Geochemistry ..., researchers and faculty of geochemistry related fields, although anyone with an interest in geochemistry ... Geochimica et Cosmochimica Acta GCA 24 issues a year Geochemistry Geophysics Geosystems G cubed published electronically Elements An International Magazine of Mineralogy, Geochemistry, and Petrology ... Reviews in Mineralogy & Geochemistry RiMG volumes Awards The Geochemical Society presents the following awards V.M. Goldschmidt Medal for major achievements in geochemistry or cosmochemistry. F.W. Clarke Medal to an early career scientist for a single outstanding contribution to geochemistry or cosmochemistry. C.C. Patterson Medal for a recent innovative breakthrough in environmental geochemistry of fundamental significance. Alfred Treibs Medal The Organic Geochemistry Division OGD of the Geochemical Society awards this for major achievements, over a period of years, in organic geochemistry. OGD Best Paper Award The Organic Geochemistry Division OGD of the Geochemical Society awards this to the authors of a paper published in the previous year with significant contributions to organic geochemistry ... of Geochemistry to outstanding scientists who have, over some years, made a major contribution to the field of geochemistry. Distinguished Service Award Recognizes and documents outstanding service ... more details
Orphan date February 2009 Unreferenced date October 2008 The Large Lakes Observatory , located in Duluth, Minnesota , studies the major lakes of the world. The researchers focus on a variety of sciences including aquatic chemistry , geochemistry and paleoclimatology . Category Lakes observatory stub ... more details
. ref cite web title Membership publisher Association of Applied Geochemistry url http www.appliedgeochemists.org ... last Thornton last Govett first G.J.S. title Applied Geochemistry in the 1980s chapter Geochemistry ... a series of biennial International Applied Geochemistry Symposia titled the International Geochemical ... Shortly after its inauguration the society began publishing the Journal of Exploration Geochemistry in 1972. ref cite book last Siegel first Frederic R. title Applied Geochemistry year 1975 ... s flagship journal is Geochemistry Exploration, Environment, Analysis , co published with the Geological ... relating to the application of geochemistry to the exploration and study of mineral resources. It aims to promote interchange between exploration and environmental geochemistry. ref cite web title Geochemistry Environment, Analysis, Exploration. publisher The Geological Society url http www.geolsoc.org.uk ... in or outstanding contribution to applied geochemistry. ref cite web title AAG Gold medal url ... on geochemistry. ref cite web title Student Paper Prize url http www.appliedgeochemists.org students ... links http www.appliedgeochemists.org Official website http geea.geoscienceworld.org Geochemistry ... Geochemistry Category Geology organizations ... more details
Ross Taylor may refer to Ross Taylor , a New Zealand cricketer Ross Taylor Geochemist , Doctor of Geochemistry Ross Taylor ice hockey , a Canadian ice hockey player Ross Taylor rugby league , a New Zealand rugby league player It may also refer to John Ross Taylor , a Canadian political activist hndis Taylor, Ross ... more details
Other persons John Hunt John M. Hunt 1918 2005 was a geologist, chemist, and oceanographer. He worked at the Woods Hole Oceanographic Institution beginning in 1968. His specialty was petroleum geochemistry , and he wrote the standard textbook Petroleum Geochemistry and Geology . References http www.whoi.edu mr obit.do?id 5803 In Memoriam John M. Hunt Persondata Metadata see Wikipedia Persondata . NAME Hunt, John ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH 1918 PLACE OF BIRTH DATE OF DEATH 2005 PLACE OF DEATH DEFAULTSORT Hunt, John Category Oceanographers Category Petroleum geologists Category 1918 births Category 2005 deaths chemist stub geographer stub ... more details
Unreferenced date January 2007 orphan date November 2009 In a Physical chemistry physical or Geochemistry geochemical system, a solvus is a line binary system or surface ternary system on a phase diagram which separates a homogeneous solid solution from a field of several phases which may form by exsolution or incongruent melting . The line determines a solid solubility limit which changes as a function of temperature. it is a locus of points on equilibrium diagram An example is the formation of perthite when an alkali feldspar is cooled down.it defines limit of solid solubility in an equilibrium diagram Category Geochemistry Category Petrology Category Materials science Petrology stub ... more details
Refimprove date June 2008 Valeri Leonidovich Barsukov March 14, 1928 &ndash July 22, 1992 was a Soviet Union Soviet Geochemistry geochemist . He worked in comparative planetology and the geochemistry of space. He was director of the V. I. Vernadsky Institute of Geochemistry from 1976 to 1992. In 1987 he received the Vladimir I. Vernadsky V.I. Vernadsky Gold Medal for his work. A Impact crater crater on Mars was named after him. ref cite news url http www.accessmylibrary.com coms2 summary 0286 5458490 ITM title Soviets looking at manned moon mission by 2000. Defense Daily July, 1989 publisher www.accessmylibrary.com accessdate 2008 06 22 last first date July 20, 1989 ref References refs Persondata Metadata see Wikipedia Persondata . NAME Barsukov, Valeri L. ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH March 14, 1928 PLACE OF BIRTH DATE OF DEATH July 22, 1992 PLACE OF DEATH DEFAULTSORT Barsukov, Valeri L. Category 1928 births Category 1992 deaths Category Soviet chemists Category Russian chemists Category Russian geologists Category Soviet geologists Russia chemist stub russia scientist stub geologist stub ru , ... more details
Kenneth A. Farley is a noble gas isotope geochemistry isotope geochemist , W. M. Keck Foundation professor of geochemistry and chairman of the Division of Geological and Planetary Sciences at the California Institute of Technology . ref name CalTech cite web title Kenneth A. Farley, Cal Tech, Home page url http www.gps.caltech.edu farley accessdate 2009 02 08 ref Farley specializes in the study of the accumulation of cosmic dust on Seabed seafloor sediment s through analysis of the presence of Helium 3 and in the isotopic composition of mid oceanic volcanic island basalt s. ref name CalTech Farley earned a Bachelor of Science B.S. in chemistry at Yale University in 1986 and his Doctorate Ph.D. in geochemistry at the University of California, San Diego in 1991 under the guidance of Scripps Institution of Oceanography geochemist Harmon Craig . In 2000, to recognize the innovative and potentially beneficial nature of his research, Farley was awarded the NAS Award for Initiatives in Research National Academy of Science Award for Initiatives in Research . References reflist External links http www.gps.caltech.edu farley Farley s web site at Caltech Persondata Metadata see Wikipedia Persondata . NAME Farley, Kenneth ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH PLACE OF BIRTH DATE OF DEATH PLACE OF DEATH DEFAULTSORT Farley, Kenneth Category Living people Category American geologists Category California Institute of Technology faculty Category Yale University alumni Category University of California, San Diego alumni US geologist stub ... more details
Unreferenced date June 2011 The primitive mantle is, in geochemistry , a hypothetical reservoir geochemistry reservoir with the composition of the Earth s Earth s crust crust and Earth s mantle mantle taken together. The currently accepted scientific hypothesis is that the Earth formed by Accretion astrophysics accretion of material with a chondrite chondritic composition. Still during the accretionary phase planetary differentiation started, giving rise to the Earth s core , where heavy metallic siderophile elements accumulated. Around it was a in this stage undifferentiated mantle, the primitive mantle. Further differentiation would take place later, creating the different chemical reservoirs of crust and mantle, with incompatible element s accumulating in the crust. Today differentiation still continues in the upper mantle . Reservoirs depleted in lithophile elements are called depleted , fresh undifferentiated parts of the mantle are called enriched or primitive . The last name is confusing but derives from the fact that such reservoirs are comparable in composition to the primitive mantle. Volcanic rock s from hotspot geology hotspot areas often have a primitive composition. Because the magma at hotspots is supposed to have been taken to the surface from the deepest regions of the mantle by mantle plume s, geochemists assume there must be a relatively closed reservoir of very primitive composition somewhere in the lower mantle. One of the hypotheses is this is the so called D D layer at the core mantle boundary. See also Planetary differentiation Late veneer hypothesis Giant impact hypothesis Category Geochemistry nl Primitieve mantel ... more details
Alfred E. Treibs 1899 &ndash 1983 was a German organic chemist who is credited with founding the area of organic geochemistry . He received his PhD under Hans Fischer at the Technical University of Munich . Fischer had received the Nobel Prize in Chemistry for elucidating the structures of porphyrin s. In the 1930 s Treibs discovered metalloporphyrins in petroleum. ref Treibs, A.E. Chlorophyll und H minderivate in organischen Mineralstoffen Angewandte Chemie 1936, volume 49, 682 686. DOI 10.1002 ange.19360493803 ref These porphyrins resemble chlorophyll s. This discovery helped confirm the biological origin of petroleum, which was previously controversial. ref Keith A. Kvenvolden Organic geochemistry A retrospective of its first 70 years Organic Geochemistry 37 2006 1 11. DOI 10.1016 j.orggeochem.2005.09.001 ref References references See also http gs.wustl.edu archives treibs.html List of recipients of the Alfred Treibs Award award Persondata Metadata see Wikipedia Persondata . NAME Treibs, Alfred E. ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH 1899 PLACE OF BIRTH DATE OF DEATH 1983 PLACE OF DEATH DEFAULTSORT Treibs, Alfred E. Category 1899 births Category 1983 deaths Category German chemists Category Technical University Munich alumni Category Technical University Munich faculty de Alfred Treibs ... more details
In ecology or geoscience , the iron cycle is the biogeochemical cycle of iron through landform s, the Earth s atmosphere atmosphere , and ocean s. The iron cycle affects dust deposition and Particulate aerosol iron bioavailability. . References Jickells, T. D., et al. 2005, April 1 . Global iron connections between desert dust, ocean biogeochemistry, and climate. In Science, 308 , 67 &ndash 71. Category Geochemistry Category Geological processes Geology stub th ... more details
Unreferenced stub auto yes date December 2009 The environmental isotopes are a subset of the isotope s, both Stable isotopes stable and Radioactive isotopes radioactive , which are the object of Isotope geochemistry . The most used environmental isotopes are deuterium tritium carbon 13 carbon 14 nitrogen 15 oxygen 18 silicon 29 chlorine 36 DEFAULTSORT Environmental Isotopes Category Environmental isotopes Nuclear stub Environment stub isotope stub es Is topo ambiental ... more details
Use mdy dates date September 2011 Professor Ding Zhongli Traditional Chinese , Simplified Chinese , Pinyin D ng Zh ngl born January 1957 ref http news.xinhuanet.com politics 2008 01 17 content 7437342.htm ref , is a renowned geologist in China and current vice president of the Chinese Academy of Sciences . Introduction Ding was born in Shengzhou , Zhejiang Province on Jan 14, 1957. 1982, he received his B.Sc of geochemistry from Zhejiang University . 1988, obtained PhD from the Institute of Geology and Geophysics, Chinese Academy of Science . Ding s research mainly focuses on the Neogene eolian sediments and ancient climate. He is the current Director general of the Institute of Geology and Geophysics, Chinese Academy of Science . ref http www.igcas.ac.cn english pia.htm Institute of Geology and Geophysics, Chinese Academy of Science organizational framework ref He s also the vice president of the Chinese Society for Mineralogy, Petrology and Geochemistry . ref http www.csmpg.org.cn cn LH structure.asp?classId 5 Chinese Society for Mineralogy, Petrology and Geochemistry organizational framework ref Dec 2005, Ding was elected to be an academician of the Chinese Academy of Science. Jan 2008, he was pointed to be the vice president of the Chinese Academy of Sciences. ref http news.xinhuanet.com politics 2008 01 17 content 7437342.htm News from Xinhuanet ref References reflist 30em External links http www.igcas.ac.cn english index.htm Homepage of the Institute of Geology and Geophysics, Chinese Academy of Science en http www.csmpg.org.cn cn index.asp Homepage of the Institute the Chinese Society for Mineralogy, Petrology and Geochemistry zh icon http zdzsc.zju.edu.cn view.php?id 1011 Ding s interview at Zhejiang University zh icon Chinese Academy of Sciences Persondata Metadata see Wikipedia Persondata . NAME Ding, Zhongli ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH 1957 PLACE OF BIRTH DATE OF DEATH PLACE OF DEATH DEFAULTSORT Ding, Zhongli Category Chinese ... more details
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