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FACILITIES
(Fig. 1) High temperature furnace.
High-Temperature
The Division has apparatus capable of reproducing and maintaining for
many hours the conditions where petrological processes occur, ranging from
the surface of the earth to depths of about 650 kilometers. Conditions
at much greater depths are studied (briefly) in the . There are eight high-temperature furnaces dedicated to
experimental petrology research. One, a graphite reducing-atmosphere furnace,
is rated 3000&C, although it is normally operated with an Al2O3
muffle tube, limiting operations to & 1650&C. The others are molybdenum
disilicide (MoSi2) furnaces with a useable temperature range
of 900 to 1650&C and a silicon carbide (SiC) furnace usable to 1500&C.
The furnaces are equipped with gas mixing capabilities, high-stability
digital temperature controllers, programmed cooling and heating cycles,
and solid electrolyte sensors for fO2 measurement.
High-Pressure
The high-pressure laboratories contains a variety of apparati. There
are 15 standard cold-seal pressure vessels, and ten with a novel design
per these reproduce conditions of metamorphism and
batholith emplacement corresponding to depths halfway through the continental
crust. Two TZM pressure vessels reach higher temperatures appropriate for
basic magmas. An intensifier producing a gas pressure of 1 GPa with an
internally-heated pressure vessel provides the capability of investigating
high- temperature magmatic processes through the depth range of the continental
Piston-Cylinder
Apparatus.
Conditions in the upper mantle are reproduced in the piston-cylinder
and multianvil devices. The laboratory features three large presses equipped
with piston-cylinder stacks for phase equilibrium experiments and mineral
synthesis to 3.5 GPa and 1600&C. Our newest addition is a 1000-ton
press with interchangeable cubic and octahedral multianvil devices for
conditions from 3 to (perhaps) 25 GPa and temperatures to 2000 &C.
Other Facilities.
Within the Division, there is a wide variety of optical microscopes
for petrographic examination and photographic documentation as well as
a wide range of supporting facilities for mineral synthesis and sample
preparation and examination (e.g., ovens, welding equipment, micromachining
equipment). The scanning electron microscope, electron microprobe and infrared
spectrometers are used routinely for study of the experimental samples.
These facilities are being used for phase equilibrium studies of synthetic
systems and natural rocks, fluid flow, kinetic studies, the intrinsic oxygen
fugacities of minerals and rocks, and experimental partitioning studies
on trace elements and stable isotopes. 下载
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2013年公布最新SCI分区表
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内容提示：刊名简称刊名全称ISSN大类名称复分大类分区是否为TOP期刊ANNU REV MAR SCIAnnual Review of Mari地学。ATMOS CHEM PHYSATMOSPHERIC CHEMISTRY地学。B AM METEOROL SOCBULLETIN OF THE AMERI地学。CLIM DYNAMCLIMATE DYNAMICS地学。CRYOSPHERECryosphere地学。EARTH PLANET SC LETTEARTH AND PLANETARY SX地学。EARTH-SCI REVEARTH-SCIENCE REVIEWS地学。GEOCHIM COSMOCHIM ACGEOCHIMICA ET COSMOCH地学。GEOLOGYGEOLOGY地学。GONDWANA RESGONDWANA RESEARCHX地学。J CLIMATEJOURNAL OF CLIMATE地学。J METAMORPH GEOLJOURNAL OF METAMORPHI地学。J PETROLJOURNAL OF PETROLOGY地学。NAT GEOSCINature Geoscience地学。PALEOCEANOGRAPHYPALEOCEANOGRAPHY地学。PRECAMBRIAN RESPRECAMBRIAN RESEARCH地学。QUATERNARY SCI REVQUATERNARY SCIENCE RE地学。REV GEOPHYSREVIEWS OF GEO
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