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James G Moore - One of the best experts on this subject based on the ideXlab platform.
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Authigenic Mineral texture in submarine 1979 basalt drill core surtsey volcano iceland
Geochemistry Geophysics Geosystems, 2019Co-Authors: Marie D Jackson, Samantha Couper, Camelia V Stan, Magnus Ivarsson, M W Czabaj, Nobumichi Tamura, Dilworth Y Parkinson, Lowell Miyagi, James G MooreAbstract:Author(s): Jackson, MD; Couper, S; Stan, CV; Ivarsson, M; Czabaj, MW; Tamura, N; Parkinson, D; Miyagi, LM; Moore, JG | Abstract: ©2019. American Geophysical Union. All Rights Reserved. Micrometer-scale maps of Authigenic microstructures in submarine basaltic tuff from a 1979 Surtsey volcano, Iceland, drill core acquired 15 years after eruptions terminated describe the initial alteration of oceanic basalt in a low-temperature hydrothermal system. An integrative investigative approach uses synchrotron source X-ray microdiffraction, microfluoresence, micro-computed tomography, and scanning transmission electron microscopy coupled with Raman spectroscopy to create finely resolved spatial frameworks that record a continuum of alteration in glass and olivine. Microanalytical maps of vesicular and fractured lapilli in specimens from 157.1-, 137.9-, and 102.6-m depths and borehole temperatures of 83, 93.9, and 141.3 °C measured in 1980, respectively, describe the production of nanocrystalline clay Mineral, zeolites, and Al-tobermorite in diverse microenvironments. Irregular alteration fronts at 157.1-m depth resemble microchannels associated with biological activity in older basalts. By contrast, linear microstructures with little resemblance to previously described alteration features have nanocrystalline clay Mineral (nontronite) and zeolite (amicite) texture. The crystallographic preferred orientation rotates around an axis parallel to the linear feature. Raman spectra indicating degraded and poorly ordered carbonaceous matter of possible biological origin are associated with nanocrystalline clay Mineral in a crystallographically oriented linear microstructure in altered olivine at 102.6 m and with subcircular nanoscale cavities in altered glass at 137.9-m depth. Although evidence for biotic processes is inconclusive, the integrated analyses describe the complex organization of previously unrecognized Mineral texture in very young basalt. They provide a foundational Mineralogical reference for longitudinal, time-lapse characterizations of palagonitized basalt in oceanic environments.
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Authigenic Mineral texture in submarine 1979 basalt drill core surtsey volcano iceland
Geochemistry Geophysics Geosystems, 2019Co-Authors: Marie D Jackson, Samantha Couper, Magnus Ivarsson, M W Czabaj, Nobumichi Tamura, Dilworth Y Parkinson, Lowell Miyagi, Cv Stan, James G MooreAbstract:Author(s): Jackson, MD; Couper, S; Stan, CV; Ivarsson, M; Czabaj, MW; Tamura, N; Parkinson, D; Miyagi, LM; Moore, JG | Abstract: Micrometer-scale maps of Authigenic microstructures in submarine basaltic tuff from a 1979 Surtsey volcano, Iceland, drill core acquired 15 years after eruptions terminated describe the initial alteration of oceanic basalt in a low-temperature hydrothermal system. An integrative investigative approach uses synchrotron source X-ray microdiffraction, microfluoresence, micro-computed tomography, and scanning transmission electron microscopy coupled with Raman spectroscopy to create finely resolved spatial frameworks that record a continuum of alteration in glass and olivine. Microanalytical maps of vesicular and fractured lapilli in specimens from 157.1-, 137.9-, and 102.6-m depths and borehole temperatures of 83, 93.9, and 141.3 °C measured in 1980, respectively, describe the production of nanocrystalline clay Mineral, zeolites, and Al-tobermorite in diverse microenvironments. Irregular alteration fronts at 157.1-m depth resemble microchannels associated with biological activity in older basalts. By contrast, linear microstructures with little resemblance to previously described alteration features have nanocrystalline clay Mineral (nontronite) and zeolite (amicite) texture. The crystallographic preferred orientation rotates around an axis parallel to the linear feature. Raman spectra indicating degraded and poorly ordered carbonaceous matter of possible biological origin are associated with nanocrystalline clay Mineral in a crystallographically oriented linear microstructure in altered olivine at 102.6 m and with subcircular nanoscale cavities in altered glass at 137.9-m depth. Although evidence for biotic processes is inconclusive, the integrated analyses describe the complex organization of previously unrecognized Mineral texture in very young basalt. They provide a foundational Mineralogical reference for longitudinal, time-lapse characterizations of palagonitized basalt in oceanic environments.
Magnus Ivarsson - One of the best experts on this subject based on the ideXlab platform.
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Authigenic Mineral texture in submarine 1979 basalt drill core surtsey volcano iceland
Geochemistry Geophysics Geosystems, 2019Co-Authors: Marie D Jackson, Samantha Couper, Camelia V Stan, Magnus Ivarsson, M W Czabaj, Nobumichi Tamura, Dilworth Y Parkinson, Lowell Miyagi, James G MooreAbstract:Author(s): Jackson, MD; Couper, S; Stan, CV; Ivarsson, M; Czabaj, MW; Tamura, N; Parkinson, D; Miyagi, LM; Moore, JG | Abstract: ©2019. American Geophysical Union. All Rights Reserved. Micrometer-scale maps of Authigenic microstructures in submarine basaltic tuff from a 1979 Surtsey volcano, Iceland, drill core acquired 15 years after eruptions terminated describe the initial alteration of oceanic basalt in a low-temperature hydrothermal system. An integrative investigative approach uses synchrotron source X-ray microdiffraction, microfluoresence, micro-computed tomography, and scanning transmission electron microscopy coupled with Raman spectroscopy to create finely resolved spatial frameworks that record a continuum of alteration in glass and olivine. Microanalytical maps of vesicular and fractured lapilli in specimens from 157.1-, 137.9-, and 102.6-m depths and borehole temperatures of 83, 93.9, and 141.3 °C measured in 1980, respectively, describe the production of nanocrystalline clay Mineral, zeolites, and Al-tobermorite in diverse microenvironments. Irregular alteration fronts at 157.1-m depth resemble microchannels associated with biological activity in older basalts. By contrast, linear microstructures with little resemblance to previously described alteration features have nanocrystalline clay Mineral (nontronite) and zeolite (amicite) texture. The crystallographic preferred orientation rotates around an axis parallel to the linear feature. Raman spectra indicating degraded and poorly ordered carbonaceous matter of possible biological origin are associated with nanocrystalline clay Mineral in a crystallographically oriented linear microstructure in altered olivine at 102.6 m and with subcircular nanoscale cavities in altered glass at 137.9-m depth. Although evidence for biotic processes is inconclusive, the integrated analyses describe the complex organization of previously unrecognized Mineral texture in very young basalt. They provide a foundational Mineralogical reference for longitudinal, time-lapse characterizations of palagonitized basalt in oceanic environments.
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Authigenic Mineral texture in submarine 1979 basalt drill core surtsey volcano iceland
Geochemistry Geophysics Geosystems, 2019Co-Authors: Marie D Jackson, Samantha Couper, Magnus Ivarsson, M W Czabaj, Nobumichi Tamura, Dilworth Y Parkinson, Lowell Miyagi, Cv Stan, James G MooreAbstract:Author(s): Jackson, MD; Couper, S; Stan, CV; Ivarsson, M; Czabaj, MW; Tamura, N; Parkinson, D; Miyagi, LM; Moore, JG | Abstract: Micrometer-scale maps of Authigenic microstructures in submarine basaltic tuff from a 1979 Surtsey volcano, Iceland, drill core acquired 15 years after eruptions terminated describe the initial alteration of oceanic basalt in a low-temperature hydrothermal system. An integrative investigative approach uses synchrotron source X-ray microdiffraction, microfluoresence, micro-computed tomography, and scanning transmission electron microscopy coupled with Raman spectroscopy to create finely resolved spatial frameworks that record a continuum of alteration in glass and olivine. Microanalytical maps of vesicular and fractured lapilli in specimens from 157.1-, 137.9-, and 102.6-m depths and borehole temperatures of 83, 93.9, and 141.3 °C measured in 1980, respectively, describe the production of nanocrystalline clay Mineral, zeolites, and Al-tobermorite in diverse microenvironments. Irregular alteration fronts at 157.1-m depth resemble microchannels associated with biological activity in older basalts. By contrast, linear microstructures with little resemblance to previously described alteration features have nanocrystalline clay Mineral (nontronite) and zeolite (amicite) texture. The crystallographic preferred orientation rotates around an axis parallel to the linear feature. Raman spectra indicating degraded and poorly ordered carbonaceous matter of possible biological origin are associated with nanocrystalline clay Mineral in a crystallographically oriented linear microstructure in altered olivine at 102.6 m and with subcircular nanoscale cavities in altered glass at 137.9-m depth. Although evidence for biotic processes is inconclusive, the integrated analyses describe the complex organization of previously unrecognized Mineral texture in very young basalt. They provide a foundational Mineralogical reference for longitudinal, time-lapse characterizations of palagonitized basalt in oceanic environments.
Morales J. - One of the best experts on this subject based on the ideXlab platform.
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Mineralogía y geoquímica del esqueleto de los mastodontes de los yacimientos Batallones 1, 2 y 5. Implicaciones tafonómicas
'Editorial CSIC', 2006Co-Authors: Merino L., Morales J.Abstract:Mastodont fossil remains (ribs, enamels and dentines) from the Upper Miocene Batallones localities (Bat-1, 2 and 5) are analyzed petrographically and geochemically to identify their diagenetic history. The X-ray difraction confirms that the original hidroxiapatite has been replaced for francolite, except in the enamel samples that have not shown any change. Calcite is the more common Authigenic Mineral that fills the porous bones. During the fossilization process there was an increment in crystalinity, a loss in proportion of the major-elements (P, Al, Cl, and K) and an enrichment in the trace-elements (except Ni, Cu, and Zn). Principal Component Analysis of the element composition of all studies samples reveals that the fossil bones of the different Batallones localities have a similar composition, probably these localities share a similar diagenetic history.Se han realizado análisis petrográficos y geoquímicos de restos óseos fósiles (costillas, esmaltes y dentinas) de mastodontes de los yacimientos miocenos Batallones 1, 2 y 5 con el fin de conocer su historia diagenética. Mediante difracción de rayos X se ha comprobado que el hidroxiapatito original ha sido sustituido por francolita (carbonato fluorapatito), salvo en los esmaltes que no ha variado. La calcita es el Mineral autigénico más abundante que rellena los poros de los huesos. El estudio de las muestras óseas de los tres yacimientos señala que durante el proceso de fosilización sufren un incremento de la cristalinidad, así como una pérdida de componentes mayoritarios y un enriquecimiento, en general, de elementos traza. Los procesos diagenéticos han modificado la composición química original de los huesos estudiados, aunque los análisis revelan que la composición de los mismos es similar en los citados yacimientos
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Mineralogía y geoquímica del esqueleto de los mastodontes de los yacimientos Batallones 1, 2 y 5. Implicaciones tafonómicas
Consejo Superior de Investigaciones Científicas, 2006Co-Authors: Morales J., Merino L.Abstract:Mastodont fossil remains (ribs, enamels and dentines) from the Upper Miocene Batallones localities (Bat-1, 2 and 5) are analyzed petrographically and geochemically to identify their diagenetic history. The X-ray difraction confirms that the original hidroxiapatite has been replaced for francolite, except in the enamel samples that have not shown any change. Calcite is the more common Authigenic Mineral that fills the porous bones. During the fossilization process there was an increment in crystalinity, a loss in proportion of the major-elements (P, Al, Cl, and K) and an enrichment in the trace-elements (except Ni, Cu, and Zn). Principal Component Analysis of the element composition of all studies samples reveals that the fossil bones of the different Batallones localities have a similar composition, probably these localities share a similar diagenetic history.Se han realizado análisis petrográficos y geoquímicos de restos óseos fósiles (costillas, esmaltes y dentinas) de mastodontes de los yacimientos miocenos Batallones 1, 2 y 5 con el fin de conocer su historia diagenética. Mediante difracción de rayos X se ha comprobado que el hidroxiapatito original ha sido sustituido por francolita (carbonato fluorapatito), salvo en los esmaltes que no ha variado. La calcita es el Mineral autigénico más abundante que rellena los poros de los huesos. El estudio de las muestras óseas de los tres yacimientos señala que durante el proceso de fosilización sufren un incremento de la cristalinidad, así como una pérdida de componentes mayoritarios y un enriquecimiento, en general, de elementos traza. Los procesos diagenéticos han modificado la composición química original de los huesos estudiados, aunque los análisis revelan que la composición de los mismos es similar en los citados yacimientos
Merino L. - One of the best experts on this subject based on the ideXlab platform.
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Mineralogía y geoquímica del esqueleto de los mastodontes de los yacimientos Batallones 1, 2 y 5. Implicaciones tafonómicas
'Editorial CSIC', 2006Co-Authors: Merino L., Morales J.Abstract:Mastodont fossil remains (ribs, enamels and dentines) from the Upper Miocene Batallones localities (Bat-1, 2 and 5) are analyzed petrographically and geochemically to identify their diagenetic history. The X-ray difraction confirms that the original hidroxiapatite has been replaced for francolite, except in the enamel samples that have not shown any change. Calcite is the more common Authigenic Mineral that fills the porous bones. During the fossilization process there was an increment in crystalinity, a loss in proportion of the major-elements (P, Al, Cl, and K) and an enrichment in the trace-elements (except Ni, Cu, and Zn). Principal Component Analysis of the element composition of all studies samples reveals that the fossil bones of the different Batallones localities have a similar composition, probably these localities share a similar diagenetic history.Se han realizado análisis petrográficos y geoquímicos de restos óseos fósiles (costillas, esmaltes y dentinas) de mastodontes de los yacimientos miocenos Batallones 1, 2 y 5 con el fin de conocer su historia diagenética. Mediante difracción de rayos X se ha comprobado que el hidroxiapatito original ha sido sustituido por francolita (carbonato fluorapatito), salvo en los esmaltes que no ha variado. La calcita es el Mineral autigénico más abundante que rellena los poros de los huesos. El estudio de las muestras óseas de los tres yacimientos señala que durante el proceso de fosilización sufren un incremento de la cristalinidad, así como una pérdida de componentes mayoritarios y un enriquecimiento, en general, de elementos traza. Los procesos diagenéticos han modificado la composición química original de los huesos estudiados, aunque los análisis revelan que la composición de los mismos es similar en los citados yacimientos
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Mineralogía y geoquímica del esqueleto de los mastodontes de los yacimientos Batallones 1, 2 y 5. Implicaciones tafonómicas
Consejo Superior de Investigaciones Científicas, 2006Co-Authors: Morales J., Merino L.Abstract:Mastodont fossil remains (ribs, enamels and dentines) from the Upper Miocene Batallones localities (Bat-1, 2 and 5) are analyzed petrographically and geochemically to identify their diagenetic history. The X-ray difraction confirms that the original hidroxiapatite has been replaced for francolite, except in the enamel samples that have not shown any change. Calcite is the more common Authigenic Mineral that fills the porous bones. During the fossilization process there was an increment in crystalinity, a loss in proportion of the major-elements (P, Al, Cl, and K) and an enrichment in the trace-elements (except Ni, Cu, and Zn). Principal Component Analysis of the element composition of all studies samples reveals that the fossil bones of the different Batallones localities have a similar composition, probably these localities share a similar diagenetic history.Se han realizado análisis petrográficos y geoquímicos de restos óseos fósiles (costillas, esmaltes y dentinas) de mastodontes de los yacimientos miocenos Batallones 1, 2 y 5 con el fin de conocer su historia diagenética. Mediante difracción de rayos X se ha comprobado que el hidroxiapatito original ha sido sustituido por francolita (carbonato fluorapatito), salvo en los esmaltes que no ha variado. La calcita es el Mineral autigénico más abundante que rellena los poros de los huesos. El estudio de las muestras óseas de los tres yacimientos señala que durante el proceso de fosilización sufren un incremento de la cristalinidad, así como una pérdida de componentes mayoritarios y un enriquecimiento, en general, de elementos traza. Los procesos diagenéticos han modificado la composición química original de los huesos estudiados, aunque los análisis revelan que la composición de los mismos es similar en los citados yacimientos
Marie D Jackson - One of the best experts on this subject based on the ideXlab platform.
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Authigenic Mineral texture in submarine 1979 basalt drill core surtsey volcano iceland
Geochemistry Geophysics Geosystems, 2019Co-Authors: Marie D Jackson, Samantha Couper, Camelia V Stan, Magnus Ivarsson, M W Czabaj, Nobumichi Tamura, Dilworth Y Parkinson, Lowell Miyagi, James G MooreAbstract:Author(s): Jackson, MD; Couper, S; Stan, CV; Ivarsson, M; Czabaj, MW; Tamura, N; Parkinson, D; Miyagi, LM; Moore, JG | Abstract: ©2019. American Geophysical Union. All Rights Reserved. Micrometer-scale maps of Authigenic microstructures in submarine basaltic tuff from a 1979 Surtsey volcano, Iceland, drill core acquired 15 years after eruptions terminated describe the initial alteration of oceanic basalt in a low-temperature hydrothermal system. An integrative investigative approach uses synchrotron source X-ray microdiffraction, microfluoresence, micro-computed tomography, and scanning transmission electron microscopy coupled with Raman spectroscopy to create finely resolved spatial frameworks that record a continuum of alteration in glass and olivine. Microanalytical maps of vesicular and fractured lapilli in specimens from 157.1-, 137.9-, and 102.6-m depths and borehole temperatures of 83, 93.9, and 141.3 °C measured in 1980, respectively, describe the production of nanocrystalline clay Mineral, zeolites, and Al-tobermorite in diverse microenvironments. Irregular alteration fronts at 157.1-m depth resemble microchannels associated with biological activity in older basalts. By contrast, linear microstructures with little resemblance to previously described alteration features have nanocrystalline clay Mineral (nontronite) and zeolite (amicite) texture. The crystallographic preferred orientation rotates around an axis parallel to the linear feature. Raman spectra indicating degraded and poorly ordered carbonaceous matter of possible biological origin are associated with nanocrystalline clay Mineral in a crystallographically oriented linear microstructure in altered olivine at 102.6 m and with subcircular nanoscale cavities in altered glass at 137.9-m depth. Although evidence for biotic processes is inconclusive, the integrated analyses describe the complex organization of previously unrecognized Mineral texture in very young basalt. They provide a foundational Mineralogical reference for longitudinal, time-lapse characterizations of palagonitized basalt in oceanic environments.
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Authigenic Mineral texture in submarine 1979 basalt drill core surtsey volcano iceland
Geochemistry Geophysics Geosystems, 2019Co-Authors: Marie D Jackson, Samantha Couper, Magnus Ivarsson, M W Czabaj, Nobumichi Tamura, Dilworth Y Parkinson, Lowell Miyagi, Cv Stan, James G MooreAbstract:Author(s): Jackson, MD; Couper, S; Stan, CV; Ivarsson, M; Czabaj, MW; Tamura, N; Parkinson, D; Miyagi, LM; Moore, JG | Abstract: Micrometer-scale maps of Authigenic microstructures in submarine basaltic tuff from a 1979 Surtsey volcano, Iceland, drill core acquired 15 years after eruptions terminated describe the initial alteration of oceanic basalt in a low-temperature hydrothermal system. An integrative investigative approach uses synchrotron source X-ray microdiffraction, microfluoresence, micro-computed tomography, and scanning transmission electron microscopy coupled with Raman spectroscopy to create finely resolved spatial frameworks that record a continuum of alteration in glass and olivine. Microanalytical maps of vesicular and fractured lapilli in specimens from 157.1-, 137.9-, and 102.6-m depths and borehole temperatures of 83, 93.9, and 141.3 °C measured in 1980, respectively, describe the production of nanocrystalline clay Mineral, zeolites, and Al-tobermorite in diverse microenvironments. Irregular alteration fronts at 157.1-m depth resemble microchannels associated with biological activity in older basalts. By contrast, linear microstructures with little resemblance to previously described alteration features have nanocrystalline clay Mineral (nontronite) and zeolite (amicite) texture. The crystallographic preferred orientation rotates around an axis parallel to the linear feature. Raman spectra indicating degraded and poorly ordered carbonaceous matter of possible biological origin are associated with nanocrystalline clay Mineral in a crystallographically oriented linear microstructure in altered olivine at 102.6 m and with subcircular nanoscale cavities in altered glass at 137.9-m depth. Although evidence for biotic processes is inconclusive, the integrated analyses describe the complex organization of previously unrecognized Mineral texture in very young basalt. They provide a foundational Mineralogical reference for longitudinal, time-lapse characterizations of palagonitized basalt in oceanic environments.
