Navigation Links
December 2008 Geology and GSA Today media highlights
Date:11/26/2008

ler ranges, coincident with the mode that is around the median value of the whole data set. Together with textural evidence, sulfide trace element data, and gold occurrence, the data demonstrate that metamorphism has gradually homogenized the early sulfur, accompanied by the segregation of quartz and the release of gold from the lattice of early pyrite and its re-precipitation as inclusions in later pyrite. The sulfur isotopic compositions of sulfides in Sukhoi Log, and many other major orogenic gold deposits hosted in sedimentary rocks of various ages, show a pattern generally parallel to the seawater sulfate curve through geologic time, indicating that the sulfur in most sediment-hosted orogenic gold deposits was probably also originally from the reduction of seawater sulfate. Chang et al. conclude that sulfidation and gold mineralization in many sediment-hosted orogenic gold deposits was early during basin evolution when seawater was the principal active fluid, rather than later during or after basin inversion, as proposed in current models.

Multiple sulfur isotopes reveal a magmatic origin for the Platreef platinum group element deposit, Bushveld Complex, South Africa

Sarah C. Penniston-Dorland et al., Department of Geology, University of Maryland, College Park, Maryland 20742, USA. Pages 979-982.

Models for the formation of platinum group element (PGE) ore deposits commonly require that magma incorporate parts of the wall rock into that which they intrude to provide sulfur. This externally derived sulfur is thought to be necessary to concentrate PGEs into the high concentrations found in these ore deposits. Using a relatively new analytical tool, the analysis of multiple isotopes of sulfur (32S, 33S, and 34S), Penniston-Dorland et al. demonstrate that sulfur within the two-billion-year-old Platreef PGE ore horizon of the Bushveld Complex in South Africa was not derived from local wall rock, and instead must have been broug
'/>"/>

Contact: Christa Stratton
cstratton@geosociety.org
303-357-1093
Geological Society of America
Source:Eurekalert

1

GOOD

Page: 1 2 3 4 5 6 7 8 9

Related biology news :

1. December GEOLOGY and GSA TODAY media highlights
2. Highlights from the December 2007 Journal of the American Dietetic Association
3. Story tips from the Department of Energys Oak Ridge National Laboratory, December 2007
4. Emerging field of neuroecology is showcased in December issue of the Biological Bulletin
5. December 2008 highlights from Biology of Reproduction
6. September Geology and GSA Today media highlights
7. October Geology and GSA Today media highlights
8. November GEOLOGY and GSA TODAY Media Highlights
9. February Geology and GSA Today media highlights
10. March GEOLOGY and GSA TODAY media highlights
11. Geology and biology meet in the history of US southwestern desert surface waters

Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/25/2009)...ighters, police officers and ambulance workers fac...enter complex. They battled to save people from th...tackled fires and evacuated as many people as they...000 people. And making their jobs even harder was ...kers and their relatives jammed mobile networks wi...
(Date:11/25/2009)...ity assistant professors recently received funding...tinue research beneficial to understanding the env...istopher Blackwood, assistant professor in the Dep... to support two separate research projects. , Hi...ser Communities and Functions from the Leaf to the...
(Date:11/24/2009)...ing new doors to understanding how sounds associat...arine mammal or if they hear it at all. , The s...that NASA uses to detect flaws in the space shuttl...ientists to peek inside the giant head of a whale....l replicas of a whale,s hearing anatomy using a br...
Breaking Biology News(10 mins):Magic box for mission impossible 2Magic box for mission impossible 3Kent State University professors focus research on the environment with grants totaling $890,000 2Rocket science leads to new whale discovery 2New cancer drug test promises safer and more effective clinical trials 10053 1New cancer drug test promises safer and more effective clinical trials 10053 2New cancer drug test promises safer and more effective clinical trials 10053 3Ultrasound can predict tumor burden and survival in melanoma patients 58115 1Ultrasound can predict tumor burden and survival in melanoma patients 58115 2Ultrasound can predict tumor burden and survival in melanoma patients 58115 3Mountain Home Helps Companies Battle Tough Economic Times by Offering Free Lean Six Sigma Training 58111 1Mountain Home Helps Companies Battle Tough Economic Times by Offering Free Lean Six Sigma Training 58111 2
... is available in German . , Tomislav Domazet-Lo... for Evolutionary Biology in Pln, Germany, have sy...large number of genes - genes which can also initi...e that the majority of these genes were already in...earch for further genes, particularly those which ...
...mer,s disease cluster study The Australian Imagin...g (AIBL) has secured its first collaborative rese...tner, Pfizer Australia., AIBL is the world,s large...d the causes of Alzheimer,s disease and to discove... initiative of the CSIRO Preventative Health Flags...
...being tested at the National Institute of Standard...ars. In a recent paper,* NIST scientists used surf...ate that gold nanostars exhibit optical qualities ...l sensing and imaging. These uniquely shaped nanop...tions from disease diagnostics to contraband ident...
Other Biology News:Genetic based human diseases are an ancient evolutionary legacy 2Alzheimer's disease research attracts first partner 2Gold nanostars outshine the competition 2
(Date:11/24/2009)... , Health care employmen...emains the only one to show consistent growth duri...lty hospitals remain in trouble, and health system...cal personnel, instead of just administrators. , ...-- Health care employment continued growing in Oct...
(Date:11/24/2009)... ,, SHANGHAI,Nov.24/PRNewswire-Asia/--Shangh...inistration(SFDA)hasapprovedthe,investigationalnew...in),aninnovativeinsulinformulationtotreatdiabetes....seIclinicalstudy. , Diabetesisadisordercharac...mplicationsofdiabetesoftenresultinseveremicro-and,...
(Date:11/24/2009)... ,, TSXVENTURE:HTL , TORONTO,Nov.24/PRN...ormerlyCalottoCapitalInc.,aleadingproviderofadvanc...andfertilityclinicmarkets,todayreportedoperational...r30,2009. , ,Q32009Highlights,-Revenuewas$1.46mi...marginwas66.3percentcomparedwith66.1percentinQ3,20...
(Date:11/24/2009)... ,, BOZEN,Italy,November24/PRNewswire/--Heal...anjointventurewithagroupofselected,investors.Thisr...he,nameHealthRoboticsCanada,Inc.andwillmarket,inst...oncept,whichincludesthe,revolutionaryproductofferi...RoboticsCanadaInc.willalsoprovideassistanceonan"as...
Breaking Biology Technology:The MedZilla Report for October 2009 - Health Care Employment Grows Again in October Even As Clinics, Specialty Centers Close 2The MedZilla Report for October 2009 - Health Care Employment Grows Again in October Even As Clinics, Specialty Centers Close 3The MedZilla Report for October 2009 - Health Care Employment Grows Again in October Even As Clinics, Specialty Centers Close 4Biolaxy Secures IND Approval for Oral Insulin 2Hamilton Thorne announces third quarter results 2Hamilton Thorne announces third quarter results 3Hamilton Thorne announces third quarter results 4Hamilton Thorne announces third quarter results 5Hamilton Thorne announces third quarter results 6Hamilton Thorne announces third quarter results 7Health Robotics Continues its Global Expansion With December 09 ASHP's Launch of Joint Venture in Canada 2
... Representatives from universities in Germany and ... sign an agreement on Monday to begin a global mas...ely heavily on the Internet. , ,The program furthe... approach that the borders of the state are the bo...rofessionals, the 15-month Global MBA program will...
... -- Merge Technologies Inc. today announced that ... has stepped down from the company,s board of dire...gy investment fund. The company does business as M...ng business development assistance to the company ...Sept. 1. , ,"While the decision to launch a new HC...
... Its an understandable question: If human embryon... genes in a persons skin cells, then why continue ...from human embryos that must be destroyed in order...ard Stem Cell Institute has turned ordinary skin c...some people will push to discontinue the tradition...
Other Biology Technology:UW-Oshkosh launching Global MBA with schools in Germany, India 2The more ways to produce stem cells, the better. Thats how science works 2The more ways to produce stem cells, the better. Thats how science works 3
Mouse Anti-Xanthine Oxidase Prediluted Monoclonal Antibody, Unconjugated, Clone SPM325 from Abcam
Mouse Anti-Vancomycin Monoclonal Antibody, Unconjugated, Clone 2G1 from Abcam
Mouse Anti-14-3-3 Binding Motif, phospho (Ser) Monoclonal Antibody, Unconjugated, Clone 4E2 from Cell Signaling Technology
Endotoxin Free Water from Mo Bio Laboratories, Inc.
Biology Products: