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NEW DATA ON SEPIOLITE AND ATTAPULGITE
SEPIOLITE ATTAPULGITE DATA
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2011/11/15
Hydrothermal studies have failed to yield synthetic attapulgite or sepiolites in the system MgO-AI~O3-SiOr-H~O. However, the natural minerals can be decomposed to yield montmorillonoids by mild hydrot...
New data on chondrichthyan microremains from the Givetian of the Renanue section in the Aragonian Pyrenees (Spain)
Chondrichthyans Taxonomy Devonian Givetian Pyrenees
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2009/10/20
The continued investigations on the Middle Devonian part (Givetian, Middle through Upper Polygnathus varcus conodont Zones) of the section near the Renanué village in the Aragonian Pyrenees, Spain, br...
New data on the stratigraphy of the folded Miocene Zone at the front of the Ukrainian Outer Carpathians
Lithostratigraphy Biostratigraphy Calcareous nannoplankton Miocene
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2009/10/20
The litho- and biostratigraphy (calcareous nannofossils and foraminifera) were studied in several sections of the foldedMiocene Zone (Boryslav–Pokuttya and Sambir nappes) of the Ukrainian Outer Carpat...
Alpine Metamorphism and Granitoid Magmatism in the Strandja Zone: New Data from the Sakar Unit, SE Bulgaria
Strandja zone Sakar unit Alpine tectonics syntectonic granitoids structural geology
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2009/7/7
The Strandja Zone is a pre-Cenomanian orogen consisting of three tectonic units: the Veleka, Strandja and Sakar units. The first two units display very low-grade Alpine metamorphism, whereas in the S...
Compressibility mechanisms of alkali feldspars: New data from reedmergnerite
New data pressue reedmergnerite
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2012/3/30
Structuralandvolumecompressibilitydataforreedmergnerite,NaBSi O ,wereobtained3 8
bysingle-crystalX-raydiffractionatpressuresupto4.7GPa.Thebulkmoduluswas
determinedtobe69.8(5)GPawiththepressurederiva...
Trace element analysis with the electron microprobe: New data and perspectives
electron microprobe element analysis
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2012/3/30
Thisworkpresentsaproceduredevelopedfortraceelementanalysisusingtheelectron
microprobe(EMP).Themethodisdemonstratedbyanalysisofsevenglassesprepared
fromreferencerockpowders,withcompositionsofgranite,...
Gordaite [Zn4Na(OH)6(SO4)Cl6H2O]: Second occurrence in the Juan de Fuca Ridge, and new data
Gordaite [Zn4Na(OH)6(SO4)Cl6H2O] Second occurrence Juan de Fuca Ridge
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2012/4/1
A hydrous zinc- and sodium-rich hydroxy-chlorosulfate, discovered in a sulfide sample collected by the Deep Sea Recovery Vehicle (DSRV) Alvin in 1984, is identified as gor-daite, Zn4Na(OH)6SO4Cl·6H2O,...
New Data and a Revised Structural Model for Ferrihydrite
Crystal structure Ferrihydrite Iron Magnetic susceptibility Surface area Synthesis Thermal analysis Transmission electron microscopy X-ray absorption edge spectra
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2012/1/9
Synthetic 2-line and 6-line ferrihydrite samples prepared from ferric nitrate solutions have the bulk compositions Fe4(O,OH,H20)12 and Fe4.6(O,OH,H2O)12, respectively. The composition depends on cryst...
Properties of the Zeolite, Faujasite, Substitutional Series: A Review with New Data
Properties Zeolite Substitutional Series New Data Review
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2012/2/15
New information is presented relating to the hydrothermal stability, lattice parameters, and adsorptive, electrical, and catalytic properties of synthetic and natural faujasite. Present concepts conce...
New Data for Tosudite
New Data Tosudite alteration mineral
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2012/2/20
Tosudite from the Takatama mine is found as an alteration mineral of the wall rocks (tuff and tuffaceous sediments of Tertiary age) of gold-silver-quartz veins. A specimen free from impurities was obt...