Mössbauer Spectrometry as an Instrumental Technique for Determinative Mineralogy

Herzenberg, C. L.

doi:10.1007/978-1-4684-3156-8_13

Cited by 11 publications

(8 citation statements)

References 19 publications

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“…Minai et al (1981) analyzed 20 deep sea sediment samples from the Pacific that were collected by piston coring. Although the spectra were similar to those of the Atlantic sediment previously reported (Herzenberg, 1970), the relative peak area of each component varied with the sampling location in the Pacific. Such regional variation was also reported by Thijs et al (1981) for deep sea sediments from five areas in the Pacific.…”

Section: Introductionsupporting

confidence: 73%

“…Several previous studies have considered the 57 Fe Mössbauer spectroscopy of oceanic sediments. Herzenberg (1970) measured the Mössbauer spectra of a red clay from the Atlantic and a metalliferous sediment from the Red Sea. The former spectrum was composed of high-spin Fe 2+ , paramagnetic Fe 3 + , and weak magnetic component (Fe M ) envelopes; the latter included Fe 3+ absorp-1 Poag, C. W., Watts,A.…”

Section: Introductionmentioning

confidence: 99%

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A Mossbauer Study of Oceanic Sediments from Site 612, Deep Sea Drilling Project Leg 95

Minai¹,

Nakamura²,

Tominaga³

1987

Initial Reports of the Deep Sea Drilling Project

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57 Fe Mössbauer spectra of 15 oceanic sediment samples collected from Site 612 (Deep Sea Drilling Project Leg 95) were recorded. These spectra showed that most of the iron in the sediments was present as high-spin, paramagnetic Fe 2+ and Fe 3 + . The ferrous iron was mainly distributed in terrigenous clays and biogenic carbonates. The variation of the Mössbauer parameters for Fe 2+ with sub-bottom depth suggests that the main Fe 2+ -bearing component changed with geologic time. The amount of iron in each iron-bearing phase as estimated from the corresponding peak areas in the spectra also changed with depth. These variations in the Mössbauer parameters and peak areas are correlated with lithologic changes in the sediment column.

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Section: Introductionsupporting

confidence: 73%

Section: Introductionmentioning

confidence: 99%

A Mossbauer Study of Oceanic Sediments from Site 612, Deep Sea Drilling Project Leg 95

Minai¹,

Nakamura²,

Tominaga³

1987

Initial Reports of the Deep Sea Drilling Project

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“…Applications to mineralogy have been reviewed by Maddock (1972) and by Hertzenberg (1970). An important factor in the interpretation of M6ssbauer spectra of iron compounds in soil is the particle size of these compounds.…”

Section: Introductionmentioning

confidence: 99%

Mössbauer Studies of Small Particles of Iron Oxides in Soil

Gangas

1973

Clays and clay miner.

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Abstract--A soil of Attica (Greece) has been studied by M6ssbauer spectroscopy and magnetization measurements in order to ascertain the nature and form of iron oxides present in it. The room temperature spectra consist of a paramagnetic doublet and a small magnetic sextet. At liquid nitrogen temperature the magnetic component increases considerably at the cost of the paramagnetic component. This behavior is typical of superparamagnetism exhibited by ultrafine magnetic particles. From the values of hyperfine parameters extracted by computer fits of the spectra, the particles can be identified mainly as a-Fe203. The theory of superparamagnetism, in conjunction with M6ssbauer and magnetization data, is discussed in detail. Application of this theory to the data for the clay fraction of the soil leads to the conclusion that the oxide particles have a size distribution with a mean particle diameter of 131 A and a width of 14 A.

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“…Herzenberg (1970) measured the Mössbauer spectra of a red clay and a metalliferous sediment. He reports a high-spin Fe 2+ , paramagnetic Fe 3+ , a weak component with magnetic hyperfine structure for the red clay, and an Fe 3+ absorption with superparamagnetic relaxation (microcrystalline goethite) for the metalliferous sediment.…”

Section: Introductionmentioning

confidence: 99%

Mössbauer Characterization of Sediments from Sites 798 and 799, Japan Sea

Minai¹,

Kusudo²,

Matsumoto³

et al. 1992

Proceedings of the Ocean Drilling Program

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57 Fe Mössbauer spectra for 26 sediment and 6 carbonate concretion samples from Sites 798 and 799 were recorded at 293 K. Most spectra were deconvolved to two quadrupole doublets without magnetic hyperfine structure. Typical Mössbauer parameters were: isomer shift (I.S.) = 0.34 mm/s and quadrupole splitting (Q.S.) = 0.64 mm/s for the paramagnetic Fe 3+ component (partly, pyrite); I.S. = 1.13 mm/s and Q.S. = 2.64 mm/s for the high-spin Fe 2+ component derived from iron-bearing aluminosilicates. A few spectra included other high-spin Fe 2+ components ascribed to iron-bearing carbonate minerals (e.g., ferroan magnesite), according to the Mössbauer parameters for Fe 2+ in the carbonate concretions. We present the distribution of iron among different chemical forms as a function of depth. These data might indicate changes of depositional and diagenetic conditions.

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Mössbauer Spectrometry as an Instrumental Technique for Determinative Mineralogy

Cited by 11 publications

References 19 publications

A Mossbauer Study of Oceanic Sediments from Site 612, Deep Sea Drilling Project Leg 95

A Mossbauer Study of Oceanic Sediments from Site 612, Deep Sea Drilling Project Leg 95

Mössbauer Studies of Small Particles of Iron Oxides in Soil

Mössbauer Characterization of Sediments from Sites 798 and 799, Japan Sea

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