Direct High-Resolution Transmission Electron Microscopic Measurement Of Expandability Of Mixed-Layer Illite/Smectite In Bentonite Rock
Abstract Samples of mixed-layer illite/smectite were investigated from a single bentonite bed zoned with respect to expandability from 90 to 30%. Chips of natural rocks were embedded in a resin, using a procedure designed to preserve the original fabric, cut with an ultramicrotome, and observed by h...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Środoń, Jan [verfasserIn] |
|---|
| Format: |
E-Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
1990 |
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| Anmerkung: |
© The Clay Minerals Society 1990 |
|---|
| Übergeordnetes Werk: |
Enthalten in: Clays and clay minerals - [Cham] : Springer International Publishing, 1952, 38(1990), 4 vom: 01. Aug., Seite 373-379 |
|---|---|
| Übergeordnetes Werk: |
volume:38 ; year:1990 ; number:4 ; day:01 ; month:08 ; pages:373-379 |
| Links: |
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| DOI / URN: |
10.1346/CCMN.1990.0380406 |
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| 520 | |a Abstract Samples of mixed-layer illite/smectite were investigated from a single bentonite bed zoned with respect to expandability from 90 to 30%. Chips of natural rocks were embedded in a resin, using a procedure designed to preserve the original fabric, cut with an ultramicrotome, and observed by high-resolution transmission electron microscopy (HRTEM). These observations confirmed the X-ray powder diffraction (XRD) model of mixed-layer clays, i.e., that illite/smectite grains in natural rocks are built of mixed-layer crystals, from 1 to as many as 15 silicate layers thick (4–6 interlayers per crystal on average). These crystals are present either as individual particles (loose crystals) or, typically, they form nearly parallel face-to-face groupings called here quasi-crystals. Free fundamental smectite and illite particles as defined by Nadeau and coworkers were essentially absent. Illite and smectite interlayer spacings were 10 and 13.5 Å, respectively. Crystal thickness and number of interlayers were measured for 35–100 mixed-layer crystals per sample. Illite/smectite expandabilities were calculated from these data in two ways: either neglecting the crystal edges or accounting for them. The former determinations agree well with XRD estimates of expandability and the latter, with expandabilities calculated from the distributions of fundamental particle thickness measured by a shadowing technique in the TEM. This result explains the systematic discrepancy between XRD and TEM measurements of illite/smectite expandability. | ||
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| 700 | 1 | |a Robert, Michel |4 aut | |
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10.1346/CCMN.1990.0380406 doi (DE-627)SPR03871955X (SPR)CCMN.1990.0380406-e DE-627 ger DE-627 rakwb eng Środoń, Jan verfasserin aut Direct High-Resolution Transmission Electron Microscopic Measurement Of Expandability Of Mixed-Layer Illite/Smectite In Bentonite Rock 1990 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Clay Minerals Society 1990 Abstract Samples of mixed-layer illite/smectite were investigated from a single bentonite bed zoned with respect to expandability from 90 to 30%. Chips of natural rocks were embedded in a resin, using a procedure designed to preserve the original fabric, cut with an ultramicrotome, and observed by high-resolution transmission electron microscopy (HRTEM). These observations confirmed the X-ray powder diffraction (XRD) model of mixed-layer clays, i.e., that illite/smectite grains in natural rocks are built of mixed-layer crystals, from 1 to as many as 15 silicate layers thick (4–6 interlayers per crystal on average). These crystals are present either as individual particles (loose crystals) or, typically, they form nearly parallel face-to-face groupings called here quasi-crystals. Free fundamental smectite and illite particles as defined by Nadeau and coworkers were essentially absent. Illite and smectite interlayer spacings were 10 and 13.5 Å, respectively. Crystal thickness and number of interlayers were measured for 35–100 mixed-layer crystals per sample. Illite/smectite expandabilities were calculated from these data in two ways: either neglecting the crystal edges or accounting for them. The former determinations agree well with XRD estimates of expandability and the latter, with expandabilities calculated from the distributions of fundamental particle thickness measured by a shadowing technique in the TEM. This result explains the systematic discrepancy between XRD and TEM measurements of illite/smectite expandability. Andreoli, Cristina aut Elsass, Françoise aut Robert, Michel aut Enthalten in Clays and clay minerals [Cham] : Springer International Publishing, 1952 38(1990), 4 vom: 01. Aug., Seite 373-379 (DE-627)32823043X (DE-600)2045991-9 1552-8367 nnns volume:38 year:1990 number:4 day:01 month:08 pages:373-379 https://dx.doi.org/10.1346/CCMN.1990.0380406 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_31 GBV_ILN_702 GBV_ILN_2190 AR 38 1990 4 01 08 373-379 |
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10.1346/CCMN.1990.0380406 doi (DE-627)SPR03871955X (SPR)CCMN.1990.0380406-e DE-627 ger DE-627 rakwb eng Środoń, Jan verfasserin aut Direct High-Resolution Transmission Electron Microscopic Measurement Of Expandability Of Mixed-Layer Illite/Smectite In Bentonite Rock 1990 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Clay Minerals Society 1990 Abstract Samples of mixed-layer illite/smectite were investigated from a single bentonite bed zoned with respect to expandability from 90 to 30%. Chips of natural rocks were embedded in a resin, using a procedure designed to preserve the original fabric, cut with an ultramicrotome, and observed by high-resolution transmission electron microscopy (HRTEM). These observations confirmed the X-ray powder diffraction (XRD) model of mixed-layer clays, i.e., that illite/smectite grains in natural rocks are built of mixed-layer crystals, from 1 to as many as 15 silicate layers thick (4–6 interlayers per crystal on average). These crystals are present either as individual particles (loose crystals) or, typically, they form nearly parallel face-to-face groupings called here quasi-crystals. Free fundamental smectite and illite particles as defined by Nadeau and coworkers were essentially absent. Illite and smectite interlayer spacings were 10 and 13.5 Å, respectively. Crystal thickness and number of interlayers were measured for 35–100 mixed-layer crystals per sample. Illite/smectite expandabilities were calculated from these data in two ways: either neglecting the crystal edges or accounting for them. The former determinations agree well with XRD estimates of expandability and the latter, with expandabilities calculated from the distributions of fundamental particle thickness measured by a shadowing technique in the TEM. This result explains the systematic discrepancy between XRD and TEM measurements of illite/smectite expandability. Andreoli, Cristina aut Elsass, Françoise aut Robert, Michel aut Enthalten in Clays and clay minerals [Cham] : Springer International Publishing, 1952 38(1990), 4 vom: 01. Aug., Seite 373-379 (DE-627)32823043X (DE-600)2045991-9 1552-8367 nnns volume:38 year:1990 number:4 day:01 month:08 pages:373-379 https://dx.doi.org/10.1346/CCMN.1990.0380406 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_31 GBV_ILN_702 GBV_ILN_2190 AR 38 1990 4 01 08 373-379 |
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10.1346/CCMN.1990.0380406 doi (DE-627)SPR03871955X (SPR)CCMN.1990.0380406-e DE-627 ger DE-627 rakwb eng Środoń, Jan verfasserin aut Direct High-Resolution Transmission Electron Microscopic Measurement Of Expandability Of Mixed-Layer Illite/Smectite In Bentonite Rock 1990 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Clay Minerals Society 1990 Abstract Samples of mixed-layer illite/smectite were investigated from a single bentonite bed zoned with respect to expandability from 90 to 30%. Chips of natural rocks were embedded in a resin, using a procedure designed to preserve the original fabric, cut with an ultramicrotome, and observed by high-resolution transmission electron microscopy (HRTEM). These observations confirmed the X-ray powder diffraction (XRD) model of mixed-layer clays, i.e., that illite/smectite grains in natural rocks are built of mixed-layer crystals, from 1 to as many as 15 silicate layers thick (4–6 interlayers per crystal on average). These crystals are present either as individual particles (loose crystals) or, typically, they form nearly parallel face-to-face groupings called here quasi-crystals. Free fundamental smectite and illite particles as defined by Nadeau and coworkers were essentially absent. Illite and smectite interlayer spacings were 10 and 13.5 Å, respectively. Crystal thickness and number of interlayers were measured for 35–100 mixed-layer crystals per sample. Illite/smectite expandabilities were calculated from these data in two ways: either neglecting the crystal edges or accounting for them. The former determinations agree well with XRD estimates of expandability and the latter, with expandabilities calculated from the distributions of fundamental particle thickness measured by a shadowing technique in the TEM. This result explains the systematic discrepancy between XRD and TEM measurements of illite/smectite expandability. Andreoli, Cristina aut Elsass, Françoise aut Robert, Michel aut Enthalten in Clays and clay minerals [Cham] : Springer International Publishing, 1952 38(1990), 4 vom: 01. Aug., Seite 373-379 (DE-627)32823043X (DE-600)2045991-9 1552-8367 nnns volume:38 year:1990 number:4 day:01 month:08 pages:373-379 https://dx.doi.org/10.1346/CCMN.1990.0380406 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_31 GBV_ILN_702 GBV_ILN_2190 AR 38 1990 4 01 08 373-379 |
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10.1346/CCMN.1990.0380406 doi (DE-627)SPR03871955X (SPR)CCMN.1990.0380406-e DE-627 ger DE-627 rakwb eng Środoń, Jan verfasserin aut Direct High-Resolution Transmission Electron Microscopic Measurement Of Expandability Of Mixed-Layer Illite/Smectite In Bentonite Rock 1990 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Clay Minerals Society 1990 Abstract Samples of mixed-layer illite/smectite were investigated from a single bentonite bed zoned with respect to expandability from 90 to 30%. Chips of natural rocks were embedded in a resin, using a procedure designed to preserve the original fabric, cut with an ultramicrotome, and observed by high-resolution transmission electron microscopy (HRTEM). These observations confirmed the X-ray powder diffraction (XRD) model of mixed-layer clays, i.e., that illite/smectite grains in natural rocks are built of mixed-layer crystals, from 1 to as many as 15 silicate layers thick (4–6 interlayers per crystal on average). These crystals are present either as individual particles (loose crystals) or, typically, they form nearly parallel face-to-face groupings called here quasi-crystals. Free fundamental smectite and illite particles as defined by Nadeau and coworkers were essentially absent. Illite and smectite interlayer spacings were 10 and 13.5 Å, respectively. Crystal thickness and number of interlayers were measured for 35–100 mixed-layer crystals per sample. Illite/smectite expandabilities were calculated from these data in two ways: either neglecting the crystal edges or accounting for them. The former determinations agree well with XRD estimates of expandability and the latter, with expandabilities calculated from the distributions of fundamental particle thickness measured by a shadowing technique in the TEM. This result explains the systematic discrepancy between XRD and TEM measurements of illite/smectite expandability. Andreoli, Cristina aut Elsass, Françoise aut Robert, Michel aut Enthalten in Clays and clay minerals [Cham] : Springer International Publishing, 1952 38(1990), 4 vom: 01. Aug., Seite 373-379 (DE-627)32823043X (DE-600)2045991-9 1552-8367 nnns volume:38 year:1990 number:4 day:01 month:08 pages:373-379 https://dx.doi.org/10.1346/CCMN.1990.0380406 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_31 GBV_ILN_702 GBV_ILN_2190 AR 38 1990 4 01 08 373-379 |
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10.1346/CCMN.1990.0380406 doi (DE-627)SPR03871955X (SPR)CCMN.1990.0380406-e DE-627 ger DE-627 rakwb eng Środoń, Jan verfasserin aut Direct High-Resolution Transmission Electron Microscopic Measurement Of Expandability Of Mixed-Layer Illite/Smectite In Bentonite Rock 1990 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Clay Minerals Society 1990 Abstract Samples of mixed-layer illite/smectite were investigated from a single bentonite bed zoned with respect to expandability from 90 to 30%. Chips of natural rocks were embedded in a resin, using a procedure designed to preserve the original fabric, cut with an ultramicrotome, and observed by high-resolution transmission electron microscopy (HRTEM). These observations confirmed the X-ray powder diffraction (XRD) model of mixed-layer clays, i.e., that illite/smectite grains in natural rocks are built of mixed-layer crystals, from 1 to as many as 15 silicate layers thick (4–6 interlayers per crystal on average). These crystals are present either as individual particles (loose crystals) or, typically, they form nearly parallel face-to-face groupings called here quasi-crystals. Free fundamental smectite and illite particles as defined by Nadeau and coworkers were essentially absent. Illite and smectite interlayer spacings were 10 and 13.5 Å, respectively. Crystal thickness and number of interlayers were measured for 35–100 mixed-layer crystals per sample. Illite/smectite expandabilities were calculated from these data in two ways: either neglecting the crystal edges or accounting for them. The former determinations agree well with XRD estimates of expandability and the latter, with expandabilities calculated from the distributions of fundamental particle thickness measured by a shadowing technique in the TEM. This result explains the systematic discrepancy between XRD and TEM measurements of illite/smectite expandability. Andreoli, Cristina aut Elsass, Françoise aut Robert, Michel aut Enthalten in Clays and clay minerals [Cham] : Springer International Publishing, 1952 38(1990), 4 vom: 01. Aug., Seite 373-379 (DE-627)32823043X (DE-600)2045991-9 1552-8367 nnns volume:38 year:1990 number:4 day:01 month:08 pages:373-379 https://dx.doi.org/10.1346/CCMN.1990.0380406 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_31 GBV_ILN_702 GBV_ILN_2190 AR 38 1990 4 01 08 373-379 |
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direct high-resolution transmission electron microscopic measurement of expandability of mixed-layer illite/smectite in bentonite rock |
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Direct High-Resolution Transmission Electron Microscopic Measurement Of Expandability Of Mixed-Layer Illite/Smectite In Bentonite Rock |
| abstract |
Abstract Samples of mixed-layer illite/smectite were investigated from a single bentonite bed zoned with respect to expandability from 90 to 30%. Chips of natural rocks were embedded in a resin, using a procedure designed to preserve the original fabric, cut with an ultramicrotome, and observed by high-resolution transmission electron microscopy (HRTEM). These observations confirmed the X-ray powder diffraction (XRD) model of mixed-layer clays, i.e., that illite/smectite grains in natural rocks are built of mixed-layer crystals, from 1 to as many as 15 silicate layers thick (4–6 interlayers per crystal on average). These crystals are present either as individual particles (loose crystals) or, typically, they form nearly parallel face-to-face groupings called here quasi-crystals. Free fundamental smectite and illite particles as defined by Nadeau and coworkers were essentially absent. Illite and smectite interlayer spacings were 10 and 13.5 Å, respectively. Crystal thickness and number of interlayers were measured for 35–100 mixed-layer crystals per sample. Illite/smectite expandabilities were calculated from these data in two ways: either neglecting the crystal edges or accounting for them. The former determinations agree well with XRD estimates of expandability and the latter, with expandabilities calculated from the distributions of fundamental particle thickness measured by a shadowing technique in the TEM. This result explains the systematic discrepancy between XRD and TEM measurements of illite/smectite expandability. © The Clay Minerals Society 1990 |
| abstractGer |
Abstract Samples of mixed-layer illite/smectite were investigated from a single bentonite bed zoned with respect to expandability from 90 to 30%. Chips of natural rocks were embedded in a resin, using a procedure designed to preserve the original fabric, cut with an ultramicrotome, and observed by high-resolution transmission electron microscopy (HRTEM). These observations confirmed the X-ray powder diffraction (XRD) model of mixed-layer clays, i.e., that illite/smectite grains in natural rocks are built of mixed-layer crystals, from 1 to as many as 15 silicate layers thick (4–6 interlayers per crystal on average). These crystals are present either as individual particles (loose crystals) or, typically, they form nearly parallel face-to-face groupings called here quasi-crystals. Free fundamental smectite and illite particles as defined by Nadeau and coworkers were essentially absent. Illite and smectite interlayer spacings were 10 and 13.5 Å, respectively. Crystal thickness and number of interlayers were measured for 35–100 mixed-layer crystals per sample. Illite/smectite expandabilities were calculated from these data in two ways: either neglecting the crystal edges or accounting for them. The former determinations agree well with XRD estimates of expandability and the latter, with expandabilities calculated from the distributions of fundamental particle thickness measured by a shadowing technique in the TEM. This result explains the systematic discrepancy between XRD and TEM measurements of illite/smectite expandability. © The Clay Minerals Society 1990 |
| abstract_unstemmed |
Abstract Samples of mixed-layer illite/smectite were investigated from a single bentonite bed zoned with respect to expandability from 90 to 30%. Chips of natural rocks were embedded in a resin, using a procedure designed to preserve the original fabric, cut with an ultramicrotome, and observed by high-resolution transmission electron microscopy (HRTEM). These observations confirmed the X-ray powder diffraction (XRD) model of mixed-layer clays, i.e., that illite/smectite grains in natural rocks are built of mixed-layer crystals, from 1 to as many as 15 silicate layers thick (4–6 interlayers per crystal on average). These crystals are present either as individual particles (loose crystals) or, typically, they form nearly parallel face-to-face groupings called here quasi-crystals. Free fundamental smectite and illite particles as defined by Nadeau and coworkers were essentially absent. Illite and smectite interlayer spacings were 10 and 13.5 Å, respectively. Crystal thickness and number of interlayers were measured for 35–100 mixed-layer crystals per sample. Illite/smectite expandabilities were calculated from these data in two ways: either neglecting the crystal edges or accounting for them. The former determinations agree well with XRD estimates of expandability and the latter, with expandabilities calculated from the distributions of fundamental particle thickness measured by a shadowing technique in the TEM. This result explains the systematic discrepancy between XRD and TEM measurements of illite/smectite expandability. © The Clay Minerals Society 1990 |
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Direct High-Resolution Transmission Electron Microscopic Measurement Of Expandability Of Mixed-Layer Illite/Smectite In Bentonite Rock |
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https://dx.doi.org/10.1346/CCMN.1990.0380406 |
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Andreoli, Cristina Elsass, Françoise Robert, Michel |
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