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ANHYDROUS COMPOSITIONS OF NATURAL AND EXPERIMENTAL MATERIALS Available to Purchase

Published: 17 January 2018
TABLE 1. ANHYDROUS COMPOSITIONS OF NATURAL AND EXPERIMENTAL MATERIALS
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A: Summary spectral parameter map of Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) full-resolution target image FRT0000B939 (R: BD1900, G: Doub2200, B: D2300), where Fe/Mg smectites are magenta; doublet hydrated material is yellow-green; anhydrous materials are dark blue, overlain on Context Camera (CTX) image P07_003606_1727_XN_07S079W (see Fig. 1B for location). Features: a—outer rim of the landslide; b—longitudinal ridges and grooves. Location of B is also shown. B: Interpreted geologic map of a basal section of the landslide based on CTX image in A. Numbers and letters indicate lithologic units discussed in the text (for unmarked examples, see the Data Repository [see footnote 1]). Dashed red line is trace of basal sliding surface with triangles on overriding plate; dashed white line is trace of an intralandslide sliding surface separating light-toned unit 3 below from dark-toned unit 4 above; yellow lines are geologic contacts unrelated to emplacement of the studied landslide. Blue box shows location of C. C: High Resolution Science Imaging Experiment image (ESP_016172_1720) showing that unit 4 is above unit 3; yellow arrow is sun illumination direction (see the Data Repository for topographic data). D: Summary of geologic units and their contact relationships as shown in B. E: Ratioed CRISM spectra for image FRT0000B939; spectra colors correspond to mapped units in A.

A: Summary spectral parameter map of Compact Reconnaissance Imaging Spectro... Available to Purchase

Published: 01 February 2015
Figure 2. A: Summary spectral parameter map of Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) full-resolution target image FRT0000B939 (R: BD1900, G: Doub2200, B: D2300), where Fe/Mg smectites are magenta; doublet hydrated material is yellow-green; anhydrous materials are dark blue
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DF1–DF2 diagrams for the high-silica (a) and low-silica (b) (Verma and Armstrong-Altrin, 2013) terrigenous rocks of the Ipsit, Nugan, and Bugarikhta formations, where DF1 = (–0.263·ln(TiO2/SiO2)adj) + (0.604·ln(Al2O3/SiO2)adj) + (–1.725·ln(Fe2O3tot/SiO2)adj) + (0.660·ln(MnO/SiO2)adj) + (2.191·ln(MgO/SiO2)adj) + (0.144·ln(CaO/SiO2)adj) + (–1.304·ln(Na2O/SiO2)adj) + (0.054·ln(K2O/SiO2)adj) + (–0.330·ln(P2O5/SiO2)adj) + + 1.588; DF2 = (–1.196·ln(TiO2/SiO2)adj) + (1.064·ln(Al2O3/SiO2)adj) + (0.303·ln(Fe2O3tot/SiO2)adj) + (0.436·ln(MnO/SiO2)adj) + (0.838·ln(MgO/SiO2)adj) + (–0.407·ln(CaO/SiO2)adj) + (1.021·ln(K2O/SiO2)adj) + (–0.126·ln(P2O5/SiO2)adj) – 1.068. Subscript adj means the calculation based on the oxide contents reduced to 100% anhydrous material. Designations follow Fig. 5.

DF 1 –DF 2 diagrams for the high-silica ( a ) and low-silica ( b ) ( Verma... Available to Purchase

Published: 01 January 2023
O 3tot /SiO 2 ) adj ) + (0.436·ln(MnO/SiO 2 ) adj ) + (0.838·ln(MgO/SiO 2 ) adj ) + (–0.407·ln(CaO/SiO 2 ) adj ) + (1.021·ln(K 2 O/SiO 2 ) adj ) + (–0.126·ln(P 2 O 5 /SiO 2 ) adj ) – 1.068. Subscript adj means the calculation based on the oxide contents reduced to 100% anhydrous material
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Chemical composition of synthetic anhydrous starting material in wt%. Available to Purchase

Published: 01 March 2005
Table 1. Chemical composition of synthetic anhydrous starting material in wt%.
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Raman spectra of a hydrous (MA405) and an anhydrous experiment (MA451). Marked with an asterisk are the peaks belonging to Mg(OH)2 or Ca(OH)2 (Lutz et al. 1994). Even in the nominally anhydrous experiment brucite is found, which indicates that the starting material attracted atmospheric water. In the anhydrous experiment the broadening of the peaks in the melt phase is typical for disordered carbonate.

Raman spectra of a hydrous (MA405) and an anhydrous experiment (MA451). Mar... Available to Purchase

Published: 01 December 2017
Figure 10. Raman spectra of a hydrous (MA405) and an anhydrous experiment (MA451). Marked with an asterisk are the peaks belonging to Mg(OH) 2 or Ca(OH) 2 ( Lutz et al. 1994 ). Even in the nominally anhydrous experiment brucite is found, which indicates that the starting material attracted
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BSE images and CSFH of run products from anhydrous experiments with silicate starting material.

BSE images and CSFH of run products from anhydrous experiments with silicat... Available to Purchase

Published: 01 February 2003
F igure 5. BSE images and CSFH of run products from anhydrous experiments with silicate starting material.
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SEM images of the 350, 400, 450, 500, 550, and anhydrous samples. 350: a bulk agglomerate having the appearance of a glass piece in the starting material (left) and intergrown stishovite crystals on the surface of an agglomerate (right). 400: agglomerate of partially separated stishovite crystals (left) and close-up of these crystals displaying a rounded tabular appearance (right). 450: separated crystals showing visible intergrowth contacts. 500: crystals with various morphologies and sizes. 550: evenly sized euhedral crystals with sharp edges. Anhydrous: stishovite crystals grown by slow cooling from 1000 °C.

SEM images of the 350, 400, 450, 500, 550, and anhydrous samples. 350: a bu... Available to Purchase

Published: 01 November 2016
Figure 3 SEM images of the 350, 400, 450, 500, 550, and anhydrous samples. 350: a bulk agglomerate having the appearance of a glass piece in the starting material (left) and intergrown stishovite crystals on the surface of an agglomerate (right). 400: agglomerate of partially separated stishovite
Journal Article

Experimental evaluation of a new H 2 O-independent thermometer based on olivine-melt Ni partitioning at crustal pressure Available to Purchase

Xiaofei Pu, Gordon M. Moore, Rebecca A. Lange, Jack P. Touran, Joel E. Gagnon
Published: 01 February 2021
American Mineralogist (2021) 106 (2): 235–250.
DOI: https://doi.org/10.2138/am-2020-7014
... GPa), in marked contrast to thermometers based on D Mg Ol/liq . In this study, 15 olivine-melt equilibrium experiments were conducted on a basaltic glass starting material (9.6 wt% MgO; 353 ppm Ni) to test this hypothesis by comparing the effect of dissolved H 2 O in the melt on D Mg Ol/liq and D Ni...
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View PDF for article title, Experimental evaluation of a new H 2 O-independent thermometer based on olivine-melt Ni partitioning at crustal pressure
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Liquidus phase relations in the forsterite–diopside–enstatite system at 7 GPa and variable temperatures under anhydrous condition. The circles indicate composition of the starting materials used to study the system.

Liquidus phase relations in the forsterite–diopside–enstatite system at 7 G... Available to Purchase

Published: 01 October 2012
Fig. 4 Liquidus phase relations in the forsterite–diopside–enstatite system at 7 GPa and variable temperatures under anhydrous condition. The circles indicate composition of the starting materials used to study the system.
Journal Article

Property changes of oil shale during artificial maturation: The Irati Formation from the Paraná Basin, Brazil Available to Purchase

James Moyer, Manika Prasad
Journal: Geophysics
Published: 19 September 2017
Geophysics (2017) 82 (6): MR175–MR190.
DOI: https://doi.org/10.1190/geo2016-0605.1
...James Moyer; Manika Prasad ABSTRACT Acquiring elastic property information from oil shale during pyrolysis remains a difficult endeavor. We subject oil shale samples from the Irati Formation in the Paraná Basin, Brazil, to high-temperature, high-pressure hydrous and anhydrous pyrolysis while...
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View PDF for article title, Property changes of oil shale during artificial maturation: The Irati Formation from the Paraná Basin, Brazil
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Oxygen isotopic compositions of anhydrous minerals in calcium-, aluminium-rich inclusions (CAIs) in Allende. Analyses of mineral fractions from Clayton et al. (1973, 1977) are used to define the CCAM line with slope 0.94. Altered and unaltered material analyses are from Young and Russell (1998); the unaltered material defines the Y&R slope = 1 line.

Oxygen isotopic compositions of anhydrous minerals in calcium-, aluminium-r... Available to Purchase

Published: 01 January 2008
Figure 14. Oxygen isotopic compositions of anhydrous minerals in calcium-, aluminium-rich inclusions (CAIs) in Allende. Analyses of mineral fractions from Clayton et al. (1973 , 1977) are used to define the CCAM line with slope 0.94. Altered and unaltered material analyses are from Young
Journal Article

Metastable non-stoichiometric diopside and Mg-wollastonite; an occurrence in an interplanetary dust particle Available to Purchase

Frans J. M. Rietmeijer
Published: 01 December 1999
American Mineralogist (1999) 84 (11-12): 1883–1894.
DOI: https://doi.org/10.2138/am-1999-11-1215
...,Ni-sulfides, Mg,Fe-olivines, and (Ca,Mg,Fe)-pyroxenes. The crystallographic and chemical properties of these materials can be modified by energetic thermal processes such as irradiation by energetic atoms (space weathering) and flash heating when an IDP decelerates in the Earth's upper atmosphere...
View PDF for article title, Metastable non-stoichiometric diopside and Mg-wollastonite; an occurrence in an interplanetary dust particle
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(TOp row) Scanning electron microscope images of an anhydrous, chondritic porous interplanetary dust particle (IDP) and a hydrated, chondritic smooth IDP. (Middle row) Backscatter electron images of microtome sections of the same two particles where brightness is determined by mean atomic number. (Bottom row) Transmission electron microscope images of 60 nm microtome sections of the same particles showing that the chondritic porous IDP (left) is a mix of anhydrous minerals, glass, sulfides and organic material, while the chondritic smooth IDP (right) is dominated by layered silicates, such as smectite and other hydrated phases. Image credit: D. E. and D. J. Joswiak

( T Op row ) Scanning electron microscope images of an anhydrous, chondrit... Available to Purchase

Published: 01 June 2016
by mean atomic number. ( B ottom row ) Transmission electron microscope images of 60 nm microtome sections of the same particles showing that the chondritic porous IDP (left) is a mix of anhydrous minerals, glass, sulfides and organic material, while the chondritic smooth IDP (right) is dominated
Journal Article

Extraterrestrial formation of oldhamite and portlandite through thermal metamorphism of calcite in the Sutter's Mill carbonaceous chondrite Available to Purchase

Christopher W. Haberle, Laurence A.J. Garvie
Published: 01 December 2017
American Mineralogist (2017) 102 (12): 2415–2421.
DOI: https://doi.org/10.2138/am-2017-6180
... that the anhydrous stones were derived from extraterrestrial heating of the phyllosilicate-calcite-bearing material. One of only three Sutter's Mill stones (SM3) collected prior to heavy rainfall over the recovery site is the focus of this study. Its powder X-ray diffraction patterns are dominated by olivine...
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View PDF for article title, Extraterrestrial formation of oldhamite and portlandite through thermal metamorphism of calcite in the Sutter's Mill carbonaceous chondrite
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(a) Stability field of melt and solid under anhydrous conditions. The dotted lines are the results from Buob et al. (2006) and the solid red lines from this study. (b) Phase diagram under hydrous conditions. The dotted lines are the results from Buob et al. (2006) and the solid blue lines from this study. (c) Direct comparison of the anhydrous results with the preliminary hydrous results. The labeling posititions in the phase diagram are based on Buob et al. (2006). Closed symbols indicate coexistence of solid and melt; open symbols were performed in the super-liquidus field or in the subsolidus field of magnesite. Experiments resulting in pokrovskite plus melt are plotted in the super-liquidus field with the bulk composition of the starting material. The temperature uncertainty for the experiments is ±50 °C. (Color online.)

( a ) Stability field of melt and solid under anhydrous conditions. The dot... Available to Purchase

Published: 01 December 2017
Figure 8. ( a ) Stability field of melt and solid under anhydrous conditions. The dotted lines are the results from Buob et al. (2006) and the solid red lines from this study. ( b ) Phase diagram under hydrous conditions. The dotted lines are the results from Buob et al. (2006) and the solid
Journal Article

Experimental studies of pegmatite genesis; l, A model for the derivation and crystallization of granitic pegmatites Available to Purchase

Richard H. Jahns, C. Wayne Burnham
Journal: Economic Geology
Published: 01 December 1969
Economic Geology (1969) 64 (8): 843–864.
DOI: https://doi.org/10.2113/gsecongeo.64.8.843
... that is high relative to the limit of solubility under existing confining pressure, can be formed either through partial melting of crustal materials or as rest-liquid in a cooling igneous body yielding dominantly anhydrous crystalline phases. Such granitic magma can be expected to consolidate according...
View PDF for article title, Experimental studies of pegmatite genesis; l, A model for the derivation and crystallization of granitic pegmatites
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SPIRAL STRUCTURE OF 7 Å HALLOYSITE: MATHEMATICAL MODELS Available to Purchase

Girija Bhushan Mitra
Published: 01 December 2013
Clays and Clay Minerals (2013) 61 (6): 499–507.
DOI: https://doi.org/10.1346/CCMN.2013.0610602
...Girija Bhushan Mitra Abstract Halloysite is used for targeted delivery of drugs and other biomolecules. Renewed interest in examination by X-ray diffraction (XRD) to predict the size of particles that can be loaded onto the nanotubes has resulted. Anhydrous halloysite consists of spiraled tubules...
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View PDF for article title, SPIRAL STRUCTURE OF 7 Å HALLOYSITE: MATHEMATICAL MODELS
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Water in nominally anhydrous minerals: Implications for partial melting and strain localization in the lower crust Available to Purchase

S.J. Seaman, M.L. Williams, M.J. Jercinovic, G.C. Koteas, L.B. Brown
Journal: Geology
Published: 01 October 2013
Geology (2013) 41 (10): 1051–1054.
DOI: https://doi.org/10.1130/G34435.1
...S.J. Seaman; M.L. Williams; M.J. Jercinovic; G.C. Koteas; L.B. Brown Abstract Low concentrations (tens to hundreds of parts per million) of water in nominally anhydrous minerals (NAMs) of the mantle have been shown to significantly affect the rheology, depth of depressurization melting, and many...
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View PDF for article title, Water in nominally <span class="search-highlight">anhydrous</span> minerals: Implications for partial melting and strain localization in the lower crust
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Fluid regime in continental subduction zones: petrological insights from ultrahigh-pressure metamorphic rocks Available to Purchase

Yong-Fei Zheng
Published: 01 July 2009
Journal of the Geological Society (2009) 166 (4): 763–782.
DOI: https://doi.org/10.1144/0016-76492008-016R
... to understanding fluid action in such systems, hence these rocks are the main focus of this review. Sources of metamorphic fluid can be deduced from study of hydrous minerals, structural hydroxyl and molecular water in nominally anhydrous minerals. Fluid and solid inclusions of UHP metamorphic minerals are also...
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View PDF for article title, Fluid regime in continental subduction zones: petrological insights from ultrahigh-pressure metamorphic rocks
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Effect of current density on the electron microprobe analysis of alkali aluminosilicate glasses Available to Purchase

George B. Morgan, VI, David London
Published: 01 July 2005
American Mineralogist (2005) 90 (7): 1131–1138.
DOI: https://doi.org/10.2138/am.2005.1769
... in increased concentrations of Al and Si, but little or no change in the concentration of K; if not fully corrected for, these effects produce systematic errors in important elemental ratios. With current densities <0.01 nA/μm 2 , anhydrous glasses or crystalline materials are suitable standards and data...
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View PDF for article title, Effect of current density on the electron microprobe analysis of alkali aluminosilicate glasses
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