21st line 2; 199026 St. Petersburg, Russia
Phone/Fax: +7 (812) 328-8640 email: rmo@minsoc.ru
founded in 1817
Annual Session 2009
Saint Petersburg, Russia
5-7 October 2009
Site map
Conferences & Meetings RMS Annual Session "Ontogeny of minerals applied to scientific and industrial uses (to the 100 year anniversary of Prof. Dmitry Grigoriev)"
print print version
Locations of visitors to this page
MinSoc Info
Conferences & Meetings
Zapiski RMO (Journal)
re-registered: 931
yesterday: 158
users: 2795
active: 2355
organizations: 760
departments: 435
useful links: 66
announced: 1
registration open: 0
total: 2007
PDF: 1986
issues: 547
articles: 9606
PDF of abstracts: 2156
fulltext articles: 3830
records: 43
fulltext PDF: 9
| search |
Features of morphology of fayalite, formed on various substrates in hydrothermal conditions

RMS-DPI code:  2009-1-17-0
Scientific session:  1. History, current state and prospects of mineral ontogeny applied to problems of geochemistry, crystallography, mineralogy, lithology, petrology and economic geology.
Author listing:  Ivanova L.A., Marchuk M.V., Medvedev V.Ya.
Principal author:  Ivanova Larisa Aleksandrovna
Language:  Russian
Abstract - Summary 
(short description):
The transfer of the most abundant rock-forming components (Si and Fe) in the reduced H-O-N system (NH3 25%; 2 25-75%; 2 0-50%) was studied using the temperature gradient method at =500-7000, P=500-1000 bar, and duration 100-500 h. Quartz and leucocratic granite samples were mounted in the autoclave of stainless steel holders. Our experiments showed that addition of NaCl leads to the formation of fayalite after quartz and quartz aggregates in leucocratic granites and Fe-bearing sample holders. The growth of fayalite from the gas phase due to precipitation on quartz and Fe-bearing holders depends on the influx of Si and Fe, respectively, by fluid. The growth of certain faces of the newly formed fayalite is significantly influenced by the composition of the parent substrate. Mainly platy crystals with well-developed pinacoid faces are formed after quartz, while prismatic and short-prismatic crystals are formed on Fe-bearing holders, indicating a significant adsorption influence of components of the medium on the crystal shape. The growth rate of fayalite is high (up to 0.002 mm/h at =5000).
Our experiments showed that Si and Fe can be transferred to the reduced part of the H-O-N system in the presence of NaCl under both hydrothermal and anhydrous conditions.
Experiment, temperature, pressure, reduced system, fayalite.
Date of presentation:  06/10/2009
Presentation Place:  Mining University, Hall 1166
RMS-DPI code:  2009-1-17-0
Proceeedings volume 
in the RMS catalogue:
Ontogeny of minerals applied to scientific and industrial uses (to the 100 year anniversary of Prof. Dmitry Grigoriev)
Pages:  51-53
File of proceedings 
 352 K
Status:  printed
Accepted:  27/07/2009
Published on-line:  15/10/2009
Permanent address of publication:  http://www.minsoc.ru/2009-1-17-0/
Contact author(s):  Ivanova, Larisa Aleksandrovna
site administrator: adminminsoc.ru (Docent Morozov, Mikhail)
registration | forgot password?
about registration
RMS distribution list service
NEW !!! RMS 200th Anniversary Meeting 2017
RMS for You:  PDF (37k)
RMS Directory
List of organizations

"Zapiski RMO" online
New Books

RMS Annual Session and Fedorov Session 2012
General Meeting and Fedorov Session 2010
Minerals as Advanced Materials II
Annual Session 2009
Annual Session 2008
Fedorov Session 2008
Annual Session 2007
Annual Session 2006
Fedorov Session 2006

ankara escort
tuzla escort
united luxury shop
istanbul escort
gaziantep escort gaziantep escort
izmir escort bayan
buca escort